| ID |
noaa-refs-forecast-hourly-virtual
|
| Spatial domain | Continental United States |
| Spatial resolution | 3 km |
| Time domain | Forecasts initialized 2026-08-13 00:00:00 UTC to Present |
| Time resolution | Forecasts initialized every 6 hours |
| Forecast domain | Forecast lead time 1-60 hours ahead |
| Forecast resolution | Hourly |
STAC (browse) · validation report
The RRFS Ensemble Forecast System (REFS) is a National Oceanic and Atmospheric Administration (NOAA) National Centers for Environmental Prediction (NCEP) ensemble product system. It produces ensemble products on a 3 km grid, including means, spreads and probabilities of exceeding thresholds, from the current and 6 hour old cycles of the deterministic Rapid Refresh Forecast System (RRFS) and its ensemble (RRFS ENS), plus two HRRR members over the continental United States.
NOAA REFS is pre-operational, so expect changes to the model data and to the structure of this dataset.
This dataset is an archive of past and present REFS ensemble products, optimized for spatial (map) access patterns. Forecasts are identified by an initialization time (init_time) denoting the start time of the model run, and step forward hourly along the lead_time dimension from 1 hour out to 60 hours.
Ensemble means and standard deviations are stored along the statistic dimension. Other products, such as probabilities of exceeding a threshold, are separate variables.
This dataset uses the native RRFS Lambert Conformal Conic projection, with spatial indexing along the x and y dimensions. The example notebook shows how to use the embedded spatial reference to select geographic areas of interest.
Note: dynamical-catalog>=1.0.1 and gribberish>=1.8.4 (or zarr>=3.2 icechunk>=2.0 gribberish>=1.8.4) are required.
| RRFS and REFS forecasts, virtual (Github) | |
| RRFS and REFS forecasts, virtual (Colab) |
import dynamical_catalog # dynamical-catalog>=1.0.1
ds = dynamical_catalog.open("noaa-refs-forecast-hourly-virtual", chunks=None)
ds["temperature_2m"].sel(init_time="2026-09-16T12", lead_time="24h", statistic="mean")
import dynamical_catalog # dynamical-catalog>=1.0.1
ds = dynamical_catalog.open("noaa-refs-forecast-hourly-virtual", chunks=None)
ds["temperature_2m"].sel(init_time="2026-09-16T12", lead_time="24h", statistic="mean")
import icechunk
import pystac
import xarray as xr
catalog = pystac.Catalog.from_file("https://stac.dynamical.org/catalog.json")
collection = catalog.get_child("noaa-refs-forecast-hourly-virtual")
asset = collection.assets["icechunk-https"]
authorize = icechunk.containers_credentials({"s3://noaa-rrfs-ops-pds/": icechunk.s3_anonymous_credentials()})
repo = icechunk.Repository.open(
icechunk.http_storage(asset.href),
authorize_virtual_chunk_access=authorize,
)
session = repo.readonly_session("main")
ds = xr.open_zarr(session.store, chunks=None)
ds["temperature_2m"].sel(init_time="2026-09-16T12", lead_time="24h", statistic="mean")
import icechunk
import pystac
import xarray as xr
catalog = pystac.Catalog.from_file("https://stac.dynamical.org/catalog.json")
collection = catalog.get_child("noaa-refs-forecast-hourly-virtual")
asset = collection.assets["icechunk-https"]
authorize = icechunk.containers_credentials({"s3://noaa-rrfs-ops-pds/": icechunk.s3_anonymous_credentials()})
repo = icechunk.Repository.open(
icechunk.http_storage(asset.href),
authorize_virtual_chunk_access=authorize,
)
session = repo.readonly_session("main")
ds = xr.open_zarr(session.store, chunks=None)
ds["temperature_2m"].sel(init_time="2026-09-16T12", lead_time="24h", statistic="mean")
| min | max | units | |
|---|---|---|---|
| init_time | 2026-08-13T00:00:00Z | Present | seconds since 1970-01-01 |
| lead_time | 3600 | 216000 | seconds |
| statistic | Present | 1 | |
| x | -2697520.143 | 2696479.857 | m |
| y | -1587306.153 | 1586693.847 | m |
Access a variable by its name (the bold identifier, e.g. ds["categorical_freezing_rain_surface"]).
Dimensions: init_time × lead_time × y × x
| variable | units |
|---|---|
categorical_freezing_rain_surface
Categorical freezing rain (cfrzr)Indicates whether freezing rain is the dominant precipitation type.
|
1 |
categorical_ice_pellets_surface
Categorical ice pellets (cicep)Indicates whether ice pellets is the dominant precipitation type.
|
1 |
categorical_rain_surface
Categorical rain (crain)Indicates whether rain is the dominant precipitation type.
|
1 |
categorical_snow_surface
Categorical snow (csnow)Indicates whether snow is the dominant precipitation type.
|
1 |
composite_reflectivity
Maximum/Composite radar reflectivity (refc)The mean slice is always missing; the probability-matched mean is provided as a separate variable. Standard deviation includes members' no-echo markers. Differences in echo presence or in the markers contribute to standard deviation, so it does not measure only uncertainty in echo magnitude or height. · dimensions: init_time × statistic × lead_time × y × x
|
dBZ |
convective_available_potential_energy_180_0mb
Convective available potential energy (cape)The 180-0 mb in the name are pressure differences from the surface, not isobaric levels. · dimensions: init_time × statistic × lead_time × y × x
|
J kg-1 |
convective_available_potential_energy_90_0mb
Convective available potential energy (cape)The 90-0 mb in the name are pressure differences from the surface, not isobaric levels. · dimensions: init_time × statistic × lead_time × y × x
|
J kg-1 |
convective_available_potential_energy_surface
Convective available potential energy (cape)dimensions: init_time × statistic × lead_time × y × x
|
J kg-1 |
convective_inhibition_180_0mb
Convective inhibition (cin)The 180-0 mb in the name are pressure differences from the surface, not isobaric levels. The mean is negative where there is inhibition and at or near zero where there is none. · dimensions: init_time × statistic × lead_time × y × x
|
J kg-1 |
convective_inhibition_90_0mb
Convective inhibition (cin)The 90-0 mb in the name are pressure differences from the surface, not isobaric levels. The mean is negative where there is inhibition and at or near zero where there is none. · dimensions: init_time × statistic × lead_time × y × x
|
J kg-1 |
convective_inhibition_surface
Convective inhibition (cin)The mean is negative where there is inhibition and at or near zero where there is none. · dimensions: init_time × statistic × lead_time × y × x
|
J kg-1 |
derived_radar_reflectivity_1000m
Derived radar reflectivity (refd)The mean slice is always missing; the probability-matched mean is provided as a separate variable. Standard deviation includes members' no-echo markers. Differences in echo presence or in the markers contribute to standard deviation, so it does not measure only uncertainty in echo magnitude or height. · dimensions: init_time × statistic × lead_time × y × x
|
dBZ |
dew_point_temperature_2m
2 metre dewpoint temperature (2d)The standard_deviation slice is not populated; read dew_point_temperature_2m_standard_deviation without the statistic dimension, in kelvin differences; 1 K of difference equals 1 degree_Celsius of difference. · dimensions: init_time × statistic × lead_time × y × x
|
degree_Celsius |
dew_point_temperature_2m_standard_deviation
Standard deviation of 2 metre dewpoint temperature (dew_point_temperature_2m_standard_deviation)NOAA spread: member-weighted population standard deviation with weights normalized over contributing members. This is a temperature difference in K, numerically equal to the difference in degree_Celsius; no temperature offset is applied.
|
K |
dew_point_temperature_500hpa
Dew point temperature (dpt)The standard_deviation slice is not populated; read dew_point_temperature_500hpa_standard_deviation without the statistic dimension, in kelvin differences; 1 K of difference equals 1 degree_Celsius of difference. · dimensions: init_time × statistic × lead_time × y × x
|
degree_Celsius |
dew_point_temperature_500hpa_standard_deviation
Standard deviation of dew point temperature (dew_point_temperature_500hpa_standard_deviation)NOAA spread: member-weighted population standard deviation with weights normalized over contributing members. This is a temperature difference in K, numerically equal to the difference in degree_Celsius; no temperature offset is applied.
|
K |
dew_point_temperature_700hpa
Dew point temperature (dpt)The standard_deviation slice is not populated; read dew_point_temperature_700hpa_standard_deviation without the statistic dimension, in kelvin differences; 1 K of difference equals 1 degree_Celsius of difference. · dimensions: init_time × statistic × lead_time × y × x
|
degree_Celsius |
dew_point_temperature_700hpa_standard_deviation
Standard deviation of dew point temperature (dew_point_temperature_700hpa_standard_deviation)NOAA spread: member-weighted population standard deviation with weights normalized over contributing members. This is a temperature difference in K, numerically equal to the difference in degree_Celsius; no temperature offset is applied.
|
K |
dew_point_temperature_850hpa
Dew point temperature (dpt)The standard_deviation slice is not populated; read dew_point_temperature_850hpa_standard_deviation without the statistic dimension, in kelvin differences; 1 K of difference equals 1 degree_Celsius of difference. · dimensions: init_time × statistic × lead_time × y × x
|
degree_Celsius |
dew_point_temperature_850hpa_standard_deviation
Standard deviation of dew point temperature (dew_point_temperature_850hpa_standard_deviation)NOAA spread: member-weighted population standard deviation with weights normalized over contributing members. This is a temperature difference in K, numerically equal to the difference in degree_Celsius; no temperature offset is applied.
|
K |
dew_point_temperature_925hpa
Dew point temperature (dpt)The standard_deviation slice is not populated; read dew_point_temperature_925hpa_standard_deviation without the statistic dimension, in kelvin differences; 1 K of difference equals 1 degree_Celsius of difference. · dimensions: init_time × statistic × lead_time × y × x
|
degree_Celsius |
dew_point_temperature_925hpa_standard_deviation
Standard deviation of dew point temperature (dew_point_temperature_925hpa_standard_deviation)NOAA spread: member-weighted population standard deviation with weights normalized over contributing members. This is a temperature difference in K, numerically equal to the difference in degree_Celsius; no temperature offset is applied.
|
K |
echo_top
Echo top (retop)The mean slice is always missing; the probability-matched mean is provided as a separate variable. Standard deviation includes members' no-echo markers. Differences in echo presence or in the markers contribute to standard deviation, so it does not measure only uncertainty in echo magnitude or height. · dimensions: init_time × statistic × lead_time × y × x
|
m |
ensemble_agreement_scale_probability_of_total_precipitation_1_hour_surface_above_0p254
Ensemble agreement scale probability of 1 hour total precipitation (surface) above 0.254 kg m-2 (ensemble_agreement_scale_probability_of_total_precipitation_1_hour_surface_above_0p254)Threshold applies to the preceding 1 hour of accumulation. Ensemble agreement scale probability of 1 hour total precipitation (surface) above 0.254 kg m-2.
|
percent |
ensemble_agreement_scale_probability_of_total_precipitation_1_hour_surface_above_12p7
Ensemble agreement scale probability of 1 hour total precipitation (surface) above 12.7 kg m-2 (ensemble_agreement_scale_probability_of_total_precipitation_1_hour_surface_above_12p7)Threshold applies to the preceding 1 hour of accumulation. Ensemble agreement scale probability of 1 hour total precipitation (surface) above 12.7 kg m-2.
|
percent |
ensemble_agreement_scale_probability_of_total_precipitation_1_hour_surface_above_25p4
Ensemble agreement scale probability of 1 hour total precipitation (surface) above 25.4 kg m-2 (ensemble_agreement_scale_probability_of_total_precipitation_1_hour_surface_above_25p4)Threshold applies to the preceding 1 hour of accumulation. Ensemble agreement scale probability of 1 hour total precipitation (surface) above 25.4 kg m-2.
|
percent |
ensemble_agreement_scale_probability_of_total_precipitation_1_hour_surface_above_6p35
Ensemble agreement scale probability of 1 hour total precipitation (surface) above 6.35 kg m-2 (ensemble_agreement_scale_probability_of_total_precipitation_1_hour_surface_above_6p35)Threshold applies to the preceding 1 hour of accumulation. Ensemble agreement scale probability of 1 hour total precipitation (surface) above 6.35 kg m-2.
|
percent |
ensemble_agreement_scale_probability_of_total_snowfall_1_hour_surface_above_0p025
Ensemble agreement scale probability of 1 hour total snowfall (surface) above 0.025 m (ensemble_agreement_scale_probability_of_total_snowfall_1_hour_surface_above_0p025)Threshold applies to the preceding 1 hour of accumulation. Ensemble agreement scale probability of 1 hour total snowfall (surface) above 0.025 m.
|
percent |
ensemble_agreement_scale_probability_of_total_snowfall_1_hour_surface_above_0p076
Ensemble agreement scale probability of 1 hour total snowfall (surface) above 0.076 m (ensemble_agreement_scale_probability_of_total_snowfall_1_hour_surface_above_0p076)Threshold applies to the preceding 1 hour of accumulation. Ensemble agreement scale probability of 1 hour total snowfall (surface) above 0.076 m.
|
percent |
fog_liquid_water_content_0m
Fog liquid water content (fog_lwc)Fog liquid water is derived by the ensemble generator. Mean is weighted over members with positive fog liquid water. Standard deviation divides the weighted sum of squared deviations from that mean over all nonmissing members, including zero-fog members, by the positive-member weight sum before taking the square root. Both are zero when no member has fog. · dimensions: init_time × statistic × lead_time × y × x
|
kg kg-1 |
geopotential_height_0c_isotherm
Geopotential height (gh)dimensions: init_time × statistic × lead_time × y × x
|
m |
geopotential_height_250hpa
Geopotential height (gh)dimensions: init_time × statistic × lead_time × y × x
|
m |
geopotential_height_500hpa
Geopotential height (gh)dimensions: init_time × statistic × lead_time × y × x
|
m |
geopotential_height_700hpa
Geopotential height (gh)dimensions: init_time × statistic × lead_time × y × x
|
m |
geopotential_height_850hpa
Geopotential height (gh)dimensions: init_time × statistic × lead_time × y × x
|
m |
geopotential_height_925hpa
Geopotential height (gh)dimensions: init_time × statistic × lead_time × y × x
|
m |
geopotential_height_cloud_base
Geopotential height (gh)Mean and standard deviation use only members with a cloud base. When none contribute, the mean holds the source's no-cloud value and the standard deviation is zero, which does not indicate measured certainty. · dimensions: init_time × statistic × lead_time × y × x
|
m |
geopotential_height_cloud_ceiling
Geopotential height (gh)Mean and standard deviation exclude capped members. A mean of 20000 m denotes no reported cloud ceiling; zero standard deviation can indicate no uncapped members as well as agreement. · dimensions: init_time × statistic × lead_time × y × x
|
m |
geopotential_height_surface
Geopotential height (gh)Standard deviation reflects differences in terrain height between member grids. · dimensions: init_time × statistic × lead_time × y × x
|
m |
high_cloud_cover
High cloud cover (hcc)dimensions: init_time × statistic × lead_time × y × x
|
percent |
hourly_maximum_radar_reflectivity_1000m
Hourly maximum of simulated reflectivity (maxref)Maximum value over the preceding hour. The mean slice is always missing; the probability-matched mean is provided as a separate variable. Standard deviation includes members' no-echo markers. Differences in echo presence or in the markers contribute to standard deviation, so it does not measure only uncertainty in echo magnitude or height. · dimensions: init_time × statistic × lead_time × y × x
|
dBZ |
localized_probability_matched_mean_total_precipitation_1_hour_surface
Localized probability-matched mean of total precipitation (localized_probability_matched_mean_total_precipitation_1_hour_surface)Accumulated over the preceding 1 hour.
|
kg m-2 |
low_cloud_cover
Low cloud cover (lcc)dimensions: init_time × statistic × lead_time × y × x
|
percent |
maximum_updraft_helicity_5000_2000m
Updraft Helicity (uphl)Maximum value over the preceding hour. The mean slice is always missing; the probability-matched mean is provided as a separate variable. · dimensions: init_time × statistic × lead_time × y × x
|
m2 s-2 |
mean_probability_matched_mean_average_total_precipitation_1_hour_surface
Average of the ensemble mean and probability-matched mean of total precipitation (mean_probability_matched_mean_average_total_precipitation_1_hour_surface)Accumulated over the preceding 1 hour.
|
kg m-2 |
medium_cloud_cover
Medium cloud cover (mcc)dimensions: init_time × statistic × lead_time × y × x
|
percent |
neighborhood_probability_of_composite_reflectivity_above_10
Neighborhood probability of maximum/composite radar reflectivity (entire atmosphere) above 10 dBZ (neighborhood_probability_of_composite_reflectivity_above_10)Neighborhood probability of maximum/composite radar reflectivity (entire atmosphere) above 10 dBZ.
|
percent |
neighborhood_probability_of_composite_reflectivity_above_20
Neighborhood probability of maximum/composite radar reflectivity (entire atmosphere) above 20 dBZ (neighborhood_probability_of_composite_reflectivity_above_20)Neighborhood probability of maximum/composite radar reflectivity (entire atmosphere) above 20 dBZ.
|
percent |
neighborhood_probability_of_composite_reflectivity_above_30
Neighborhood probability of maximum/composite radar reflectivity (entire atmosphere) above 30 dBZ (neighborhood_probability_of_composite_reflectivity_above_30)Neighborhood probability of maximum/composite radar reflectivity (entire atmosphere) above 30 dBZ.
|
percent |
neighborhood_probability_of_composite_reflectivity_above_40
Neighborhood probability of maximum/composite radar reflectivity (entire atmosphere) above 40 dBZ (neighborhood_probability_of_composite_reflectivity_above_40)Neighborhood probability of maximum/composite radar reflectivity (entire atmosphere) above 40 dBZ.
|
percent |
neighborhood_probability_of_composite_reflectivity_above_50
Neighborhood probability of maximum/composite radar reflectivity (entire atmosphere) above 50 dBZ (neighborhood_probability_of_composite_reflectivity_above_50)Neighborhood probability of maximum/composite radar reflectivity (entire atmosphere) above 50 dBZ.
|
percent |
neighborhood_probability_of_derived_radar_reflectivity_1000m_above_30
Neighborhood probability of derived radar reflectivity (1000 m above ground) above 30 dBZ (neighborhood_probability_of_derived_radar_reflectivity_1000m_above_30)Neighborhood probability of derived radar reflectivity (1000 m above ground) above 30 dBZ.
|
percent |
neighborhood_probability_of_derived_radar_reflectivity_1000m_above_40
Neighborhood probability of derived radar reflectivity (1000 m above ground) above 40 dBZ (neighborhood_probability_of_derived_radar_reflectivity_1000m_above_40)Neighborhood probability of derived radar reflectivity (1000 m above ground) above 40 dBZ.
|
percent |
neighborhood_probability_of_derived_radar_reflectivity_1000m_above_50
Neighborhood probability of derived radar reflectivity (1000 m above ground) above 50 dBZ (neighborhood_probability_of_derived_radar_reflectivity_1000m_above_50)Neighborhood probability of derived radar reflectivity (1000 m above ground) above 50 dBZ.
|
percent |
neighborhood_probability_of_echo_top_above_10668
Neighborhood probability of echo top (entire atmosphere) above 10668 m (neighborhood_probability_of_echo_top_above_10668)Neighborhood probability of echo top (entire atmosphere) above 10668 m.
|
percent |
neighborhood_probability_of_echo_top_above_12192
Neighborhood probability of echo top (entire atmosphere) above 12192 m (neighborhood_probability_of_echo_top_above_12192)Neighborhood probability of echo top (entire atmosphere) above 12192 m.
|
percent |
neighborhood_probability_of_echo_top_above_15240
Neighborhood probability of echo top (entire atmosphere) above 15240 m (neighborhood_probability_of_echo_top_above_15240)Neighborhood probability of echo top (entire atmosphere) above 15240 m.
|
percent |
neighborhood_probability_of_echo_top_above_6096
Neighborhood probability of echo top (entire atmosphere) above 6096 m (neighborhood_probability_of_echo_top_above_6096)Neighborhood probability of echo top (entire atmosphere) above 6096 m.
|
percent |
neighborhood_probability_of_echo_top_above_9144
Neighborhood probability of echo top (entire atmosphere) above 9144 m (neighborhood_probability_of_echo_top_above_9144)Neighborhood probability of echo top (entire atmosphere) above 9144 m.
|
percent |
neighborhood_probability_of_freezing_rain_1_hour_surface_above_0p254
Neighborhood probability of 1 hour freezing rain (surface) above 0.254 kg m-2 (neighborhood_probability_of_freezing_rain_1_hour_surface_above_0p254)Threshold applies to the preceding 1 hour of accumulation. Neighborhood probability of 1 hour freezing rain (surface) above 0.254 kg m-2.
|
percent |
neighborhood_probability_of_freezing_rain_1_hour_surface_above_2p54
Neighborhood probability of 1 hour freezing rain (surface) above 2.54 kg m-2 (neighborhood_probability_of_freezing_rain_1_hour_surface_above_2p54)Threshold applies to the preceding 1 hour of accumulation. Neighborhood probability of 1 hour freezing rain (surface) above 2.54 kg m-2.
|
percent |
neighborhood_probability_of_freezing_rain_1_hour_surface_above_6p35
Neighborhood probability of 1 hour freezing rain (surface) above 6.35 kg m-2 (neighborhood_probability_of_freezing_rain_1_hour_surface_above_6p35)Threshold applies to the preceding 1 hour of accumulation. Neighborhood probability of 1 hour freezing rain (surface) above 6.35 kg m-2.
|
percent |
neighborhood_probability_of_hourly_maximum_radar_reflectivity_1000m_above_40
Neighborhood probability of hourly maximum of simulated reflectivity (1000 m above ground) above 40 dBZ (neighborhood_probability_of_hourly_maximum_radar_reflectivity_1000m_above_40)Neighborhood probability of hourly maximum of simulated reflectivity (1000 m above ground) above 40 dBZ. Maximum value over the preceding hour.
|
percent |
neighborhood_probability_of_hourly_maximum_radar_reflectivity_1000m_above_50
Neighborhood probability of hourly maximum of simulated reflectivity (1000 m above ground) above 50 dBZ (neighborhood_probability_of_hourly_maximum_radar_reflectivity_1000m_above_50)Neighborhood probability of hourly maximum of simulated reflectivity (1000 m above ground) above 50 dBZ. Maximum value over the preceding hour.
|
percent |
neighborhood_probability_of_maximum_updraft_helicity_5000_2000m_above_150
Neighborhood probability of updraft helicity (5000-2000 m above ground) above 150 m2 s-2 (neighborhood_probability_of_maximum_updraft_helicity_5000_2000m_above_150)Neighborhood probability of updraft helicity (5000-2000 m above ground) above 150 m2 s-2. Maximum value over the preceding hour.
|
percent |
neighborhood_probability_of_maximum_updraft_helicity_5000_2000m_above_25
Neighborhood probability of updraft helicity (5000-2000 m above ground) above 25 m2 s-2 (neighborhood_probability_of_maximum_updraft_helicity_5000_2000m_above_25)Neighborhood probability of updraft helicity (5000-2000 m above ground) above 25 m2 s-2. Maximum value over the preceding hour.
|
percent |
neighborhood_probability_of_maximum_updraft_helicity_5000_2000m_above_75
Neighborhood probability of updraft helicity (5000-2000 m above ground) above 75 m2 s-2 (neighborhood_probability_of_maximum_updraft_helicity_5000_2000m_above_75)Neighborhood probability of updraft helicity (5000-2000 m above ground) above 75 m2 s-2. Maximum value over the preceding hour.
|
percent |
neighborhood_probability_of_precipitation_exceeding_1_hour_flash_flood_guidance_1_hour_surface
Neighborhood probability of 1 hour precipitation above the 1 hour flash flood guidance depth (neighborhood_probability_of_precipitation_exceeding_1_hour_flash_flood_guidance_1_hour_surface)Threshold applies to the preceding 1 hour of accumulation. Neighborhood probability of 1 hour precipitation above the 1 hour flash flood guidance depth. Probabilities compare precipitation with a spatially varying guidance or recurrence-interval depth. Negative values are unavailable thresholds blended into neighboring cells by smoothing; positive values near coverage boundaries can also be biased low. Mask values < -0.1.
|
percent |
neighborhood_probability_of_total_precipitation_1_hour_surface_above_12p7
Neighborhood probability of 1 hour total precipitation (surface) above 12.7 kg m-2 (neighborhood_probability_of_total_precipitation_1_hour_surface_above_12p7)Threshold applies to the preceding 1 hour of accumulation. Neighborhood probability of 1 hour total precipitation (surface) above 12.7 kg m-2.
|
percent |
neighborhood_probability_of_total_precipitation_1_hour_surface_above_25p4
Neighborhood probability of 1 hour total precipitation (surface) above 25.4 kg m-2 (neighborhood_probability_of_total_precipitation_1_hour_surface_above_25p4)Threshold applies to the preceding 1 hour of accumulation. Neighborhood probability of 1 hour total precipitation (surface) above 25.4 kg m-2.
|
percent |
neighborhood_probability_of_total_precipitation_1_hour_surface_above_50p8
Neighborhood probability of 1 hour total precipitation (surface) above 50.8 kg m-2 (neighborhood_probability_of_total_precipitation_1_hour_surface_above_50p8)Threshold applies to the preceding 1 hour of accumulation. Neighborhood probability of 1 hour total precipitation (surface) above 50.8 kg m-2.
|
percent |
neighborhood_probability_of_total_precipitation_1_hour_surface_above_76p2
Neighborhood probability of 1 hour total precipitation (surface) above 76.2 kg m-2 (neighborhood_probability_of_total_precipitation_1_hour_surface_above_76p2)Threshold applies to the preceding 1 hour of accumulation. Neighborhood probability of 1 hour total precipitation (surface) above 76.2 kg m-2.
|
percent |
neighborhood_probability_of_total_snowfall_1_hour_surface_above_0p025
Neighborhood probability of 1 hour total snowfall (surface) above 0.025 m (neighborhood_probability_of_total_snowfall_1_hour_surface_above_0p025)Threshold applies to the preceding 1 hour of accumulation. Neighborhood probability of 1 hour total snowfall (surface) above 0.025 m.
|
percent |
neighborhood_probability_of_total_snowfall_1_hour_surface_above_0p076
Neighborhood probability of 1 hour total snowfall (surface) above 0.076 m (neighborhood_probability_of_total_snowfall_1_hour_surface_above_0p076)Threshold applies to the preceding 1 hour of accumulation. Neighborhood probability of 1 hour total snowfall (surface) above 0.076 m.
|
percent |
neighborhood_probability_of_wind_speed_10m_above_10p3
Neighborhood probability of 10 metre wind speed (10 m above ground) above 10.3 m s-1 (neighborhood_probability_of_wind_speed_10m_above_10p3)Neighborhood probability of 10 metre wind speed (10 m above ground) above 10.3 m s-1.
|
percent |
neighborhood_probability_of_wind_speed_10m_above_15p4
Neighborhood probability of 10 metre wind speed (10 m above ground) above 15.4 m s-1 (neighborhood_probability_of_wind_speed_10m_above_15p4)Neighborhood probability of 10 metre wind speed (10 m above ground) above 15.4 m s-1.
|
percent |
neighborhood_probability_of_wind_speed_10m_above_18p01
Neighborhood probability of 10 metre wind speed (10 m above ground) above 18.01 m s-1 (neighborhood_probability_of_wind_speed_10m_above_18p01)Neighborhood probability of 10 metre wind speed (10 m above ground) above 18.01 m s-1.
|
percent |
neighborhood_probability_of_wind_speed_10m_above_20p6
Neighborhood probability of 10 metre wind speed (10 m above ground) above 20.6 m s-1 (neighborhood_probability_of_wind_speed_10m_above_20p6)Neighborhood probability of 10 metre wind speed (10 m above ground) above 20.6 m s-1.
|
percent |
neighborhood_probability_of_wind_speed_10m_above_25p72
Neighborhood probability of 10 metre wind speed (10 m above ground) above 25.72 m s-1 (neighborhood_probability_of_wind_speed_10m_above_25p72)Neighborhood probability of 10 metre wind speed (10 m above ground) above 25.72 m s-1.
|
percent |
neighborhood_probability_of_wind_speed_10m_above_30p9
Neighborhood probability of 10 metre wind speed (10 m above ground) above 30.9 m s-1 (neighborhood_probability_of_wind_speed_10m_above_30p9)Neighborhood probability of 10 metre wind speed (10 m above ground) above 30.9 m s-1.
|
percent |
precipitable_water_atmosphere
Precipitable water (pwat)dimensions: init_time × statistic × lead_time × y × x
|
kg m-2 |
pressure_reduced_to_mean_sea_level
Pressure reduced to MSL (prmsl)dimensions: init_time × statistic × lead_time × y × x
|
Pa |
probability_matched_mean_composite_reflectivity
Probability-matched mean of maximum/composite radar reflectivity (probability_matched_mean_composite_reflectivity)The probability-matched mean retains member no-echo floors at -20, -10 or 0 dBZ. A value of 0 dBZ can also be a valid reflectivity; other negative dBZ values can be valid.
|
dBZ |
probability_matched_mean_derived_radar_reflectivity_1000m
Probability-matched mean of derived radar reflectivity (probability_matched_mean_derived_radar_reflectivity_1000m)The probability-matched mean retains member no-echo floors at -20, -10 or 0 dBZ. A value of 0 dBZ can also be a valid reflectivity; other negative dBZ values can be valid.
|
dBZ |
probability_matched_mean_echo_top
Probability-matched mean of echo top (probability_matched_mean_echo_top)Negative values indicate no echo. Mask values < 0.
|
m |
probability_matched_mean_geopotential_height_surface
Probability-matched mean of geopotential height (probability_matched_mean_geopotential_height_surface)
|
m |
probability_matched_mean_hourly_maximum_radar_reflectivity_1000m
Probability-matched mean of hourly maximum of simulated reflectivity (probability_matched_mean_hourly_maximum_radar_reflectivity_1000m)Maximum value over the preceding hour. A value of 0 dBZ can mean no echo or a valid reflectivity at the source's lowest reported value.
|
dBZ |
probability_matched_mean_maximum_updraft_helicity_5000_2000m
Probability-matched mean of updraft helicity (probability_matched_mean_maximum_updraft_helicity_5000_2000m)Maximum value over the preceding hour.
|
m2 s-2 |
probability_matched_mean_total_precipitation_1_hour_surface
Probability-matched mean of total precipitation (probability_matched_mean_total_precipitation_1_hour_surface)Accumulated over the preceding 1 hour.
|
kg m-2 |
probability_of_categorical_freezing_rain_surface
Probability of categorical freezing rain (surface) (probability_of_categorical_freezing_rain_surface)Percentage of members diagnosing freezing rain.
|
percent |
probability_of_categorical_ice_pellets_surface
Probability of categorical ice pellets (surface) (probability_of_categorical_ice_pellets_surface)Percentage of members diagnosing ice pellets.
|
percent |
probability_of_categorical_rain_surface
Probability of categorical rain (surface) (probability_of_categorical_rain_surface)Percentage of members diagnosing rain.
|
percent |
probability_of_categorical_snow_surface
Probability of categorical snow (surface) (probability_of_categorical_snow_surface)Percentage of members diagnosing snow.
|
percent |
probability_of_clear_air_turbulence_175hpa_at_least_1_below_2
Probability of clear air turbulence (175 mb) at least 1 and below 2 (probability_of_clear_air_turbulence_175hpa_at_least_1_below_2)Probability of clear air turbulence (175 mb) at least 1 and below 2. The generator defines categories from its Ellrod-based turbulence index: 0 at most 4; 1 above 4 through 8; 2 above 8 through 12; 3 above 12. Higher categories indicate stronger diagnosed turbulence.
|
percent |
probability_of_clear_air_turbulence_175hpa_at_least_2_below_3
Probability of clear air turbulence (175 mb) at least 2 and below 3 (probability_of_clear_air_turbulence_175hpa_at_least_2_below_3)Probability of clear air turbulence (175 mb) at least 2 and below 3. The generator defines categories from its Ellrod-based turbulence index: 0 at most 4; 1 above 4 through 8; 2 above 8 through 12; 3 above 12. Higher categories indicate stronger diagnosed turbulence.
|
percent |
probability_of_clear_air_turbulence_175hpa_at_least_3
Probability of clear air turbulence (175 mb) at least 3 (probability_of_clear_air_turbulence_175hpa_at_least_3)Probability of clear air turbulence (175 mb) at least 3. The generator defines categories from its Ellrod-based turbulence index: 0 at most 4; 1 above 4 through 8; 2 above 8 through 12; 3 above 12. Higher categories indicate stronger diagnosed turbulence.
|
percent |
probability_of_clear_air_turbulence_200hpa_at_least_1_below_2
Probability of clear air turbulence (200 mb) at least 1 and below 2 (probability_of_clear_air_turbulence_200hpa_at_least_1_below_2)Probability of clear air turbulence (200 mb) at least 1 and below 2. The generator defines categories from its Ellrod-based turbulence index: 0 at most 4; 1 above 4 through 8; 2 above 8 through 12; 3 above 12. Higher categories indicate stronger diagnosed turbulence.
|
percent |
probability_of_clear_air_turbulence_200hpa_at_least_2_below_3
Probability of clear air turbulence (200 mb) at least 2 and below 3 (probability_of_clear_air_turbulence_200hpa_at_least_2_below_3)Probability of clear air turbulence (200 mb) at least 2 and below 3. The generator defines categories from its Ellrod-based turbulence index: 0 at most 4; 1 above 4 through 8; 2 above 8 through 12; 3 above 12. Higher categories indicate stronger diagnosed turbulence.
|
percent |
probability_of_clear_air_turbulence_200hpa_at_least_3
Probability of clear air turbulence (200 mb) at least 3 (probability_of_clear_air_turbulence_200hpa_at_least_3)Probability of clear air turbulence (200 mb) at least 3. The generator defines categories from its Ellrod-based turbulence index: 0 at most 4; 1 above 4 through 8; 2 above 8 through 12; 3 above 12. Higher categories indicate stronger diagnosed turbulence.
|
percent |
probability_of_clear_air_turbulence_225hpa_at_least_1_below_2
Probability of clear air turbulence (225 mb) at least 1 and below 2 (probability_of_clear_air_turbulence_225hpa_at_least_1_below_2)Probability of clear air turbulence (225 mb) at least 1 and below 2. The generator defines categories from its Ellrod-based turbulence index: 0 at most 4; 1 above 4 through 8; 2 above 8 through 12; 3 above 12. Higher categories indicate stronger diagnosed turbulence.
|
percent |
probability_of_clear_air_turbulence_225hpa_at_least_2_below_3
Probability of clear air turbulence (225 mb) at least 2 and below 3 (probability_of_clear_air_turbulence_225hpa_at_least_2_below_3)Probability of clear air turbulence (225 mb) at least 2 and below 3. The generator defines categories from its Ellrod-based turbulence index: 0 at most 4; 1 above 4 through 8; 2 above 8 through 12; 3 above 12. Higher categories indicate stronger diagnosed turbulence.
|
percent |
probability_of_clear_air_turbulence_225hpa_at_least_3
Probability of clear air turbulence (225 mb) at least 3 (probability_of_clear_air_turbulence_225hpa_at_least_3)Probability of clear air turbulence (225 mb) at least 3. The generator defines categories from its Ellrod-based turbulence index: 0 at most 4; 1 above 4 through 8; 2 above 8 through 12; 3 above 12. Higher categories indicate stronger diagnosed turbulence.
|
percent |
probability_of_clear_air_turbulence_275hpa_at_least_1_below_2
Probability of clear air turbulence (275 mb) at least 1 and below 2 (probability_of_clear_air_turbulence_275hpa_at_least_1_below_2)Probability of clear air turbulence (275 mb) at least 1 and below 2. The generator defines categories from its Ellrod-based turbulence index: 0 at most 4; 1 above 4 through 8; 2 above 8 through 12; 3 above 12. Higher categories indicate stronger diagnosed turbulence.
|
percent |
probability_of_clear_air_turbulence_275hpa_at_least_2_below_3
Probability of clear air turbulence (275 mb) at least 2 and below 3 (probability_of_clear_air_turbulence_275hpa_at_least_2_below_3)Probability of clear air turbulence (275 mb) at least 2 and below 3. The generator defines categories from its Ellrod-based turbulence index: 0 at most 4; 1 above 4 through 8; 2 above 8 through 12; 3 above 12. Higher categories indicate stronger diagnosed turbulence.
|
percent |
probability_of_clear_air_turbulence_275hpa_at_least_3
Probability of clear air turbulence (275 mb) at least 3 (probability_of_clear_air_turbulence_275hpa_at_least_3)Probability of clear air turbulence (275 mb) at least 3. The generator defines categories from its Ellrod-based turbulence index: 0 at most 4; 1 above 4 through 8; 2 above 8 through 12; 3 above 12. Higher categories indicate stronger diagnosed turbulence.
|
percent |
probability_of_clear_air_turbulence_300hpa_at_least_1_below_2
Probability of clear air turbulence (300 mb) at least 1 and below 2 (probability_of_clear_air_turbulence_300hpa_at_least_1_below_2)Probability of clear air turbulence (300 mb) at least 1 and below 2. The generator defines categories from its Ellrod-based turbulence index: 0 at most 4; 1 above 4 through 8; 2 above 8 through 12; 3 above 12. Higher categories indicate stronger diagnosed turbulence.
|
percent |
probability_of_clear_air_turbulence_300hpa_at_least_2_below_3
Probability of clear air turbulence (300 mb) at least 2 and below 3 (probability_of_clear_air_turbulence_300hpa_at_least_2_below_3)Probability of clear air turbulence (300 mb) at least 2 and below 3. The generator defines categories from its Ellrod-based turbulence index: 0 at most 4; 1 above 4 through 8; 2 above 8 through 12; 3 above 12. Higher categories indicate stronger diagnosed turbulence.
|
percent |
probability_of_clear_air_turbulence_300hpa_at_least_3
Probability of clear air turbulence (300 mb) at least 3 (probability_of_clear_air_turbulence_300hpa_at_least_3)Probability of clear air turbulence (300 mb) at least 3. The generator defines categories from its Ellrod-based turbulence index: 0 at most 4; 1 above 4 through 8; 2 above 8 through 12; 3 above 12. Higher categories indicate stronger diagnosed turbulence.
|
percent |
probability_of_clear_air_turbulence_350hpa_at_least_1_below_2
Probability of clear air turbulence (350 mb) at least 1 and below 2 (probability_of_clear_air_turbulence_350hpa_at_least_1_below_2)Probability of clear air turbulence (350 mb) at least 1 and below 2. The generator defines categories from its Ellrod-based turbulence index: 0 at most 4; 1 above 4 through 8; 2 above 8 through 12; 3 above 12. Higher categories indicate stronger diagnosed turbulence.
|
percent |
probability_of_clear_air_turbulence_350hpa_at_least_2_below_3
Probability of clear air turbulence (350 mb) at least 2 and below 3 (probability_of_clear_air_turbulence_350hpa_at_least_2_below_3)Probability of clear air turbulence (350 mb) at least 2 and below 3. The generator defines categories from its Ellrod-based turbulence index: 0 at most 4; 1 above 4 through 8; 2 above 8 through 12; 3 above 12. Higher categories indicate stronger diagnosed turbulence.
|
percent |
probability_of_clear_air_turbulence_350hpa_at_least_3
Probability of clear air turbulence (350 mb) at least 3 (probability_of_clear_air_turbulence_350hpa_at_least_3)Probability of clear air turbulence (350 mb) at least 3. The generator defines categories from its Ellrod-based turbulence index: 0 at most 4; 1 above 4 through 8; 2 above 8 through 12; 3 above 12. Higher categories indicate stronger diagnosed turbulence.
|
percent |
probability_of_clear_air_turbulence_425hpa_at_least_1_below_2
Probability of clear air turbulence (425 mb) at least 1 and below 2 (probability_of_clear_air_turbulence_425hpa_at_least_1_below_2)Probability of clear air turbulence (425 mb) at least 1 and below 2. The generator defines categories from its Ellrod-based turbulence index: 0 at most 4; 1 above 4 through 8; 2 above 8 through 12; 3 above 12. Higher categories indicate stronger diagnosed turbulence.
|
percent |
probability_of_clear_air_turbulence_425hpa_at_least_2_below_3
Probability of clear air turbulence (425 mb) at least 2 and below 3 (probability_of_clear_air_turbulence_425hpa_at_least_2_below_3)Probability of clear air turbulence (425 mb) at least 2 and below 3. The generator defines categories from its Ellrod-based turbulence index: 0 at most 4; 1 above 4 through 8; 2 above 8 through 12; 3 above 12. Higher categories indicate stronger diagnosed turbulence.
|
percent |
probability_of_clear_air_turbulence_425hpa_at_least_3
Probability of clear air turbulence (425 mb) at least 3 (probability_of_clear_air_turbulence_425hpa_at_least_3)Probability of clear air turbulence (425 mb) at least 3. The generator defines categories from its Ellrod-based turbulence index: 0 at most 4; 1 above 4 through 8; 2 above 8 through 12; 3 above 12. Higher categories indicate stronger diagnosed turbulence.
|
percent |
probability_of_clear_air_turbulence_450hpa_at_least_1_below_2
Probability of clear air turbulence (450 mb) at least 1 and below 2 (probability_of_clear_air_turbulence_450hpa_at_least_1_below_2)Probability of clear air turbulence (450 mb) at least 1 and below 2. The generator defines categories from its Ellrod-based turbulence index: 0 at most 4; 1 above 4 through 8; 2 above 8 through 12; 3 above 12. Higher categories indicate stronger diagnosed turbulence.
|
percent |
probability_of_clear_air_turbulence_450hpa_at_least_2_below_3
Probability of clear air turbulence (450 mb) at least 2 and below 3 (probability_of_clear_air_turbulence_450hpa_at_least_2_below_3)Probability of clear air turbulence (450 mb) at least 2 and below 3. The generator defines categories from its Ellrod-based turbulence index: 0 at most 4; 1 above 4 through 8; 2 above 8 through 12; 3 above 12. Higher categories indicate stronger diagnosed turbulence.
|
percent |
probability_of_clear_air_turbulence_450hpa_at_least_3
Probability of clear air turbulence (450 mb) at least 3 (probability_of_clear_air_turbulence_450hpa_at_least_3)Probability of clear air turbulence (450 mb) at least 3. The generator defines categories from its Ellrod-based turbulence index: 0 at most 4; 1 above 4 through 8; 2 above 8 through 12; 3 above 12. Higher categories indicate stronger diagnosed turbulence.
|
percent |
probability_of_clear_air_turbulence_525hpa_at_least_1_below_2
Probability of clear air turbulence (525 mb) at least 1 and below 2 (probability_of_clear_air_turbulence_525hpa_at_least_1_below_2)Probability of clear air turbulence (525 mb) at least 1 and below 2. The generator defines categories from its Ellrod-based turbulence index: 0 at most 4; 1 above 4 through 8; 2 above 8 through 12; 3 above 12. Higher categories indicate stronger diagnosed turbulence.
|
percent |
probability_of_clear_air_turbulence_525hpa_at_least_2_below_3
Probability of clear air turbulence (525 mb) at least 2 and below 3 (probability_of_clear_air_turbulence_525hpa_at_least_2_below_3)Probability of clear air turbulence (525 mb) at least 2 and below 3. The generator defines categories from its Ellrod-based turbulence index: 0 at most 4; 1 above 4 through 8; 2 above 8 through 12; 3 above 12. Higher categories indicate stronger diagnosed turbulence.
|
percent |
probability_of_clear_air_turbulence_525hpa_at_least_3
Probability of clear air turbulence (525 mb) at least 3 (probability_of_clear_air_turbulence_525hpa_at_least_3)Probability of clear air turbulence (525 mb) at least 3. The generator defines categories from its Ellrod-based turbulence index: 0 at most 4; 1 above 4 through 8; 2 above 8 through 12; 3 above 12. Higher categories indicate stronger diagnosed turbulence.
|
percent |
probability_of_convective_available_potential_energy_90_0mb_above_1000
Probability of convective available potential energy (90-0 mb above ground) above 1000 J kg-1 (probability_of_convective_available_potential_energy_90_0mb_above_1000)Probability of convective available potential energy (90-0 mb above ground) above 1000 J kg-1. The 90-0 mb in the name are pressure differences from the surface, not isobaric levels.
|
percent |
probability_of_convective_available_potential_energy_90_0mb_above_1500
Probability of convective available potential energy (90-0 mb above ground) above 1500 J kg-1 (probability_of_convective_available_potential_energy_90_0mb_above_1500)Probability of convective available potential energy (90-0 mb above ground) above 1500 J kg-1. The 90-0 mb in the name are pressure differences from the surface, not isobaric levels.
|
percent |
probability_of_convective_available_potential_energy_90_0mb_above_2000
Probability of convective available potential energy (90-0 mb above ground) above 2000 J kg-1 (probability_of_convective_available_potential_energy_90_0mb_above_2000)Probability of convective available potential energy (90-0 mb above ground) above 2000 J kg-1. The 90-0 mb in the name are pressure differences from the surface, not isobaric levels.
|
percent |
probability_of_convective_available_potential_energy_90_0mb_above_3000
Probability of convective available potential energy (90-0 mb above ground) above 3000 J kg-1 (probability_of_convective_available_potential_energy_90_0mb_above_3000)Probability of convective available potential energy (90-0 mb above ground) above 3000 J kg-1. The 90-0 mb in the name are pressure differences from the surface, not isobaric levels.
|
percent |
probability_of_convective_available_potential_energy_90_0mb_above_500
Probability of convective available potential energy (90-0 mb above ground) above 500 J kg-1 (probability_of_convective_available_potential_energy_90_0mb_above_500)Probability of convective available potential energy (90-0 mb above ground) above 500 J kg-1. The 90-0 mb in the name are pressure differences from the surface, not isobaric levels.
|
percent |
probability_of_convective_inhibition_90_0mb_below_minus_100
Probability of convective inhibition (90-0 mb above ground) below -100 J kg-1 (probability_of_convective_inhibition_90_0mb_below_minus_100)Probability of convective inhibition (90-0 mb above ground) below -100 J kg-1. The 90-0 mb in the name are pressure differences from the surface, not isobaric levels. Convective inhibition is negative where there is inhibition and at or near zero where there is none.
|
percent |
probability_of_convective_inhibition_90_0mb_below_minus_400
Probability of convective inhibition (90-0 mb above ground) below -400 J kg-1 (probability_of_convective_inhibition_90_0mb_below_minus_400)Probability of convective inhibition (90-0 mb above ground) below -400 J kg-1. The 90-0 mb in the name are pressure differences from the surface, not isobaric levels. Convective inhibition is negative where there is inhibition and at or near zero where there is none.
|
percent |
probability_of_convective_inhibition_90_0mb_below_minus_50
Probability of convective inhibition (90-0 mb above ground) below -50 J kg-1 (probability_of_convective_inhibition_90_0mb_below_minus_50)Probability of convective inhibition (90-0 mb above ground) below -50 J kg-1. The 90-0 mb in the name are pressure differences from the surface, not isobaric levels. Convective inhibition is negative where there is inhibition and at or near zero where there is none.
|
percent |
probability_of_dew_point_temperature_2m_above_283p15
Probability of 2 metre dewpoint temperature (2 m above ground) above 283.15 K (probability_of_dew_point_temperature_2m_above_283p15)Probability of 2 metre dewpoint temperature (2 m above ground) above 283.15 K.
|
percent |
probability_of_dew_point_temperature_2m_above_285p93
Probability of 2 metre dewpoint temperature (2 m above ground) above 285.93 K (probability_of_dew_point_temperature_2m_above_285p93)Probability of 2 metre dewpoint temperature (2 m above ground) above 285.93 K.
|
percent |
probability_of_dew_point_temperature_2m_above_288p71
Probability of 2 metre dewpoint temperature (2 m above ground) above 288.71 K (probability_of_dew_point_temperature_2m_above_288p71)Probability of 2 metre dewpoint temperature (2 m above ground) above 288.71 K.
|
percent |
probability_of_dew_point_temperature_2m_above_291p48
Probability of 2 metre dewpoint temperature (2 m above ground) above 291.48 K (probability_of_dew_point_temperature_2m_above_291p48)Probability of 2 metre dewpoint temperature (2 m above ground) above 291.48 K.
|
percent |
probability_of_dew_point_temperature_2m_above_294p26
Probability of 2 metre dewpoint temperature (2 m above ground) above 294.26 K (probability_of_dew_point_temperature_2m_above_294p26)Probability of 2 metre dewpoint temperature (2 m above ground) above 294.26 K.
|
percent |
probability_of_flight_category_surface_at_least_1_below_2
Probability of flight category (surface) at least 1 and below 2 (probability_of_flight_category_surface_at_least_1_below_2)Probability of flight category (surface) at least 1 and below 2. Flight categories are 1 = LIFR (low instrument flight rules), 2 = IFR (instrument flight rules), 3 = MVFR (marginal visual flight rules), and 4 = VFR (visual flight rules). Lower categories indicate greater restriction.
|
percent |
probability_of_flight_category_surface_at_least_2_below_3
Probability of flight category (surface) at least 2 and below 3 (probability_of_flight_category_surface_at_least_2_below_3)Probability of flight category (surface) at least 2 and below 3. Flight categories are 1 = LIFR (low instrument flight rules), 2 = IFR (instrument flight rules), 3 = MVFR (marginal visual flight rules), and 4 = VFR (visual flight rules). Lower categories indicate greater restriction.
|
percent |
probability_of_flight_category_surface_at_least_3_below_4
Probability of flight category (surface) at least 3 and below 4 (probability_of_flight_category_surface_at_least_3_below_4)Probability of flight category (surface) at least 3 and below 4. Flight categories are 1 = LIFR (low instrument flight rules), 2 = IFR (instrument flight rules), 3 = MVFR (marginal visual flight rules), and 4 = VFR (visual flight rules). Lower categories indicate greater restriction.
|
percent |
probability_of_flight_category_surface_at_least_4
Probability of flight category (surface) at least 4 (probability_of_flight_category_surface_at_least_4)Probability of flight category (surface) at least 4. Flight categories are 1 = LIFR (low instrument flight rules), 2 = IFR (instrument flight rules), 3 = MVFR (marginal visual flight rules), and 4 = VFR (visual flight rules). Lower categories indicate greater restriction.
|
percent |
probability_of_fog_liquid_water_content_0m_above_0p016
Probability of fog liquid water content (0 m above ground) above 0.016 g kg-1 (probability_of_fog_liquid_water_content_0m_above_0p016)Probability of fog liquid water content (0 m above ground) above 0.016 g kg-1.
|
percent |
probability_of_fog_liquid_water_content_0m_above_0p036
Probability of fog liquid water content (0 m above ground) above 0.036 g kg-1 (probability_of_fog_liquid_water_content_0m_above_0p036)Probability of fog liquid water content (0 m above ground) above 0.036 g kg-1.
|
percent |
probability_of_fog_liquid_water_content_0m_above_0p103
Probability of fog liquid water content (0 m above ground) above 0.103 g kg-1 (probability_of_fog_liquid_water_content_0m_above_0p103)Probability of fog liquid water content (0 m above ground) above 0.103 g kg-1.
|
percent |
probability_of_geopotential_height_cloud_ceiling_below_1372
Probability of geopotential height (cloud ceiling) below 1372 m (probability_of_geopotential_height_cloud_ceiling_below_1372)Probability of geopotential height (cloud ceiling) below 1372 m.
|
percent |
probability_of_geopotential_height_cloud_ceiling_below_152p4
Probability of geopotential height (cloud ceiling) below 152.4 m (probability_of_geopotential_height_cloud_ceiling_below_152p4)Probability of geopotential height (cloud ceiling) below 152.4 m.
|
percent |
probability_of_geopotential_height_cloud_ceiling_below_1830
Probability of geopotential height (cloud ceiling) below 1830 m (probability_of_geopotential_height_cloud_ceiling_below_1830)Probability of geopotential height (cloud ceiling) below 1830 m.
|
percent |
probability_of_geopotential_height_cloud_ceiling_below_305
Probability of geopotential height (cloud ceiling) below 305 m (probability_of_geopotential_height_cloud_ceiling_below_305)Probability of geopotential height (cloud ceiling) below 305 m.
|
percent |
probability_of_geopotential_height_cloud_ceiling_below_3050
Probability of geopotential height (cloud ceiling) below 3050 m (probability_of_geopotential_height_cloud_ceiling_below_3050)Probability of geopotential height (cloud ceiling) below 3050 m.
|
percent |
probability_of_geopotential_height_cloud_ceiling_below_610
Probability of geopotential height (cloud ceiling) below 610 m (probability_of_geopotential_height_cloud_ceiling_below_610)Probability of geopotential height (cloud ceiling) below 610 m.
|
percent |
probability_of_geopotential_height_cloud_ceiling_below_915
Probability of geopotential height (cloud ceiling) below 915 m (probability_of_geopotential_height_cloud_ceiling_below_915)Probability of geopotential height (cloud ceiling) below 915 m.
|
percent |
probability_of_icing_1000hpa_at_least_1
Probability of icing (1000 mb) at least 1 (probability_of_icing_1000hpa_at_least_1)Probability of icing (1000 mb) at least 1.
|
percent |
probability_of_icing_400hpa_at_least_1
Probability of icing (400 mb) at least 1 (probability_of_icing_400hpa_at_least_1)Probability of icing (400 mb) at least 1.
|
percent |
probability_of_icing_500hpa_at_least_1
Probability of icing (500 mb) at least 1 (probability_of_icing_500hpa_at_least_1)Probability of icing (500 mb) at least 1.
|
percent |
probability_of_icing_575hpa_at_least_1
Probability of icing (575 mb) at least 1 (probability_of_icing_575hpa_at_least_1)Probability of icing (575 mb) at least 1.
|
percent |
probability_of_icing_650hpa_at_least_1
Probability of icing (650 mb) at least 1 (probability_of_icing_650hpa_at_least_1)Probability of icing (650 mb) at least 1.
|
percent |
probability_of_icing_725hpa_at_least_1
Probability of icing (725 mb) at least 1 (probability_of_icing_725hpa_at_least_1)Probability of icing (725 mb) at least 1.
|
percent |
probability_of_icing_800hpa_at_least_1
Probability of icing (800 mb) at least 1 (probability_of_icing_800hpa_at_least_1)Probability of icing (800 mb) at least 1.
|
percent |
probability_of_icing_900hpa_at_least_1
Probability of icing (900 mb) at least 1 (probability_of_icing_900hpa_at_least_1)Probability of icing (900 mb) at least 1.
|
percent |
probability_of_lightning_atmosphere_above_0p08
Probability of lightning (entire atmosphere) above 0.08 (probability_of_lightning_atmosphere_above_0p08)Probability of lightning (entire atmosphere) above 0.08.
|
percent |
probability_of_maximum_upward_vertical_velocity_100_1000mb_above_1
Probability of maximum upward vertical velocity (100-1000 mb) above 1 m s-1 (probability_of_maximum_upward_vertical_velocity_100_1000mb_above_1)Probability of maximum upward vertical velocity (100-1000 mb) above 1 m s-1. Maximum value over the preceding hour.
|
percent |
probability_of_maximum_upward_vertical_velocity_100_1000mb_above_10
Probability of maximum upward vertical velocity (100-1000 mb) above 10 m s-1 (probability_of_maximum_upward_vertical_velocity_100_1000mb_above_10)Probability of maximum upward vertical velocity (100-1000 mb) above 10 m s-1. Maximum value over the preceding hour.
|
percent |
probability_of_maximum_upward_vertical_velocity_100_1000mb_above_20
Probability of maximum upward vertical velocity (100-1000 mb) above 20 m s-1 (probability_of_maximum_upward_vertical_velocity_100_1000mb_above_20)Probability of maximum upward vertical velocity (100-1000 mb) above 20 m s-1. Maximum value over the preceding hour.
|
percent |
probability_of_precipitable_water_atmosphere_above_25
Probability of precipitable water (entire atmosphere) above 25 kg m-2 (probability_of_precipitable_water_atmosphere_above_25)Probability of precipitable water (entire atmosphere) above 25 kg m-2.
|
percent |
probability_of_precipitable_water_atmosphere_above_37p5
Probability of precipitable water (entire atmosphere) above 37.5 kg m-2 (probability_of_precipitable_water_atmosphere_above_37p5)Probability of precipitable water (entire atmosphere) above 37.5 kg m-2.
|
percent |
probability_of_precipitable_water_atmosphere_above_50
Probability of precipitable water (entire atmosphere) above 50 kg m-2 (probability_of_precipitable_water_atmosphere_above_50)Probability of precipitable water (entire atmosphere) above 50 kg m-2.
|
percent |
probability_of_storm_relative_helicity_3000_0m_above_100
Probability of storm relative helicity (3000-0 m above ground) above 100 m2 s-2 (probability_of_storm_relative_helicity_3000_0m_above_100)Probability of storm relative helicity (3000-0 m above ground) above 100 m2 s-2.
|
percent |
probability_of_storm_relative_helicity_3000_0m_above_200
Probability of storm relative helicity (3000-0 m above ground) above 200 m2 s-2 (probability_of_storm_relative_helicity_3000_0m_above_200)Probability of storm relative helicity (3000-0 m above ground) above 200 m2 s-2.
|
percent |
probability_of_storm_relative_helicity_3000_0m_above_400
Probability of storm relative helicity (3000-0 m above ground) above 400 m2 s-2 (probability_of_storm_relative_helicity_3000_0m_above_400)Probability of storm relative helicity (3000-0 m above ground) above 400 m2 s-2.
|
percent |
probability_of_temperature_2m_below_273p15
Probability of 2 metre temperature (2 m above ground) below 273.15 K (probability_of_temperature_2m_below_273p15)Probability of 2 metre temperature (2 m above ground) below 273.15 K.
|
percent |
probability_of_vertical_wind_shear_0_6000m_above_10p3
Probability of vertical wind shear (0-6000 m above ground) above 10.3 m s-1 (probability_of_vertical_wind_shear_0_6000m_above_10p3)Probability of vertical wind shear (0-6000 m above ground) above 10.3 m s-1.
|
percent |
probability_of_vertical_wind_shear_0_6000m_above_15p4
Probability of vertical wind shear (0-6000 m above ground) above 15.4 m s-1 (probability_of_vertical_wind_shear_0_6000m_above_15p4)Probability of vertical wind shear (0-6000 m above ground) above 15.4 m s-1.
|
percent |
probability_of_vertical_wind_shear_0_6000m_above_20p6
Probability of vertical wind shear (0-6000 m above ground) above 20.6 m s-1 (probability_of_vertical_wind_shear_0_6000m_above_20p6)Probability of vertical wind shear (0-6000 m above ground) above 20.6 m s-1.
|
percent |
probability_of_vertical_wind_shear_0_6000m_above_25p7
Probability of vertical wind shear (0-6000 m above ground) above 25.7 m s-1 (probability_of_vertical_wind_shear_0_6000m_above_25p7)Probability of vertical wind shear (0-6000 m above ground) above 25.7 m s-1.
|
percent |
probability_of_vertical_wind_shear_0_609m_above_10p3
Probability of vertical wind shear (0-609 m above ground) above 10.3 m s-1 (probability_of_vertical_wind_shear_0_609m_above_10p3)Probability of vertical wind shear (0-609 m above ground) above 10.3 m s-1. Over terrain above roughly 1500 to 1800 m the source does not compute the shear and writes 0.
|
percent |
probability_of_vertical_wind_shear_0_609m_above_20
Probability of vertical wind shear (0-609 m above ground) above 20 m s-1 (probability_of_vertical_wind_shear_0_609m_above_20)Probability of vertical wind shear (0-609 m above ground) above 20 m s-1. Over terrain above roughly 1500 to 1800 m the source does not compute the shear and writes 0.
|
percent |
probability_of_visibility_surface_below_1600
Probability of visibility (surface) below 1600 m (probability_of_visibility_surface_below_1600)Probability of visibility (surface) below 1600 m.
|
percent |
probability_of_visibility_surface_below_3200
Probability of visibility (surface) below 3200 m (probability_of_visibility_surface_below_3200)Probability of visibility (surface) below 3200 m.
|
percent |
probability_of_visibility_surface_below_400
Probability of visibility (surface) below 400 m (probability_of_visibility_surface_below_400)Probability of visibility (surface) below 400 m.
|
percent |
probability_of_visibility_surface_below_4829
Probability of visibility (surface) below 4829 m (probability_of_visibility_surface_below_4829)Probability of visibility (surface) below 4829 m.
|
percent |
probability_of_visibility_surface_below_6400
Probability of visibility (surface) below 6400 m (probability_of_visibility_surface_below_6400)Probability of visibility (surface) below 6400 m.
|
percent |
probability_of_visibility_surface_below_800
Probability of visibility (surface) below 800 m (probability_of_visibility_surface_below_800)Probability of visibility (surface) below 800 m.
|
percent |
probability_of_visibility_surface_below_8049
Probability of visibility (surface) below 8049 m (probability_of_visibility_surface_below_8049)Probability of visibility (surface) below 8049 m.
|
percent |
probability_of_wind_speed_10m_at_least_9_and_relative_humidity_2m_at_most_20
Probability of 10 m wind speed at least 9 m s-1 and 2 m relative humidity at most 20 percent (probability_of_wind_speed_10m_at_least_9_and_relative_humidity_2m_at_most_20)Probability of 10 m wind speed at least 9 m s-1 and 2 m relative humidity at most 20 percent.
|
percent |
probability_of_wind_speed_250hpa_above_10p3
Probability of wind speed (250 mb) above 10.3 m s-1 (probability_of_wind_speed_250hpa_above_10p3)Probability of wind speed (250 mb) above 10.3 m s-1.
|
percent |
probability_of_wind_speed_250hpa_above_20p6
Probability of wind speed (250 mb) above 20.6 m s-1 (probability_of_wind_speed_250hpa_above_20p6)Probability of wind speed (250 mb) above 20.6 m s-1.
|
percent |
probability_of_wind_speed_250hpa_above_30p9
Probability of wind speed (250 mb) above 30.9 m s-1 (probability_of_wind_speed_250hpa_above_30p9)Probability of wind speed (250 mb) above 30.9 m s-1.
|
percent |
probability_of_wind_speed_250hpa_above_41p2
Probability of wind speed (250 mb) above 41.2 m s-1 (probability_of_wind_speed_250hpa_above_41p2)Probability of wind speed (250 mb) above 41.2 m s-1.
|
percent |
probability_of_wind_speed_250hpa_above_51p5
Probability of wind speed (250 mb) above 51.5 m s-1 (probability_of_wind_speed_250hpa_above_51p5)Probability of wind speed (250 mb) above 51.5 m s-1.
|
percent |
probability_of_wind_speed_550hpa_above_10p3
Probability of wind speed (550 mb) above 10.3 m s-1 (probability_of_wind_speed_550hpa_above_10p3)Probability of wind speed (550 mb) above 10.3 m s-1.
|
percent |
probability_of_wind_speed_550hpa_above_20p6
Probability of wind speed (550 mb) above 20.6 m s-1 (probability_of_wind_speed_550hpa_above_20p6)Probability of wind speed (550 mb) above 20.6 m s-1.
|
percent |
probability_of_wind_speed_550hpa_above_30p9
Probability of wind speed (550 mb) above 30.9 m s-1 (probability_of_wind_speed_550hpa_above_30p9)Probability of wind speed (550 mb) above 30.9 m s-1.
|
percent |
probability_of_wind_speed_550hpa_above_41p2
Probability of wind speed (550 mb) above 41.2 m s-1 (probability_of_wind_speed_550hpa_above_41p2)Probability of wind speed (550 mb) above 41.2 m s-1.
|
percent |
probability_of_wind_speed_550hpa_above_51p5
Probability of wind speed (550 mb) above 51.5 m s-1 (probability_of_wind_speed_550hpa_above_51p5)Probability of wind speed (550 mb) above 51.5 m s-1.
|
percent |
probability_of_wind_speed_80m_above_10p3
Probability of 80 metre wind speed (80 m above ground) above 10.3 m s-1 (probability_of_wind_speed_80m_above_10p3)Probability of 80 metre wind speed (80 m above ground) above 10.3 m s-1.
|
percent |
probability_of_wind_speed_80m_above_15p4
Probability of 80 metre wind speed (80 m above ground) above 15.4 m s-1 (probability_of_wind_speed_80m_above_15p4)Probability of 80 metre wind speed (80 m above ground) above 15.4 m s-1.
|
percent |
probability_of_wind_speed_80m_above_20p6
Probability of 80 metre wind speed (80 m above ground) above 20.6 m s-1 (probability_of_wind_speed_80m_above_20p6)Probability of 80 metre wind speed (80 m above ground) above 20.6 m s-1.
|
percent |
probability_of_wind_speed_850_300mb_below_5
Probability of wind speed (850-300 mb) below 5 m s-1 (probability_of_wind_speed_850_300mb_below_5)Probability of wind speed (850-300 mb) below 5 m s-1.
|
percent |
probability_of_wind_speed_850hpa_above_10p3
Probability of wind speed (850 mb) above 10.3 m s-1 (probability_of_wind_speed_850hpa_above_10p3)Probability of wind speed (850 mb) above 10.3 m s-1.
|
percent |
probability_of_wind_speed_850hpa_above_20p6
Probability of wind speed (850 mb) above 20.6 m s-1 (probability_of_wind_speed_850hpa_above_20p6)Probability of wind speed (850 mb) above 20.6 m s-1.
|
percent |
probability_of_wind_speed_850hpa_above_30p9
Probability of wind speed (850 mb) above 30.9 m s-1 (probability_of_wind_speed_850hpa_above_30p9)Probability of wind speed (850 mb) above 30.9 m s-1.
|
percent |
probability_of_wind_speed_850hpa_above_41p2
Probability of wind speed (850 mb) above 41.2 m s-1 (probability_of_wind_speed_850hpa_above_41p2)Probability of wind speed (850 mb) above 41.2 m s-1.
|
percent |
probability_of_wind_speed_850hpa_above_51p5
Probability of wind speed (850 mb) above 51.5 m s-1 (probability_of_wind_speed_850hpa_above_51p5)Probability of wind speed (850 mb) above 51.5 m s-1.
|
percent |
relative_humidity_700hpa
Relative humidity (r)dimensions: init_time × statistic × lead_time × y × x
|
percent |
snowfall_water_equivalent_1_hour_surface
Snowfall water equivalent (sf)Accumulated over the preceding 1 hour. · dimensions: init_time × statistic × lead_time × y × x
|
kg m-2 |
soil_temperature_0m
Soil temperature (sot)Over water, absent member soil values enter the statistics as raw zero before Celsius conversion, while some members may contribute nonzero values. Means and standard deviations there are not soil temperature quantities. These cells are not marked; use a land mask. The standard_deviation slice is not populated; read soil_temperature_0m_standard_deviation without the statistic dimension, in kelvin differences; 1 K of difference equals 1 degree_Celsius of difference. · dimensions: init_time × statistic × lead_time × y × x
|
degree_Celsius |
soil_temperature_0m_standard_deviation
Standard deviation of soil temperature (soil_temperature_0m_standard_deviation)Over water, absent member soil values enter the statistics as raw zero before Celsius conversion, while some members may contribute nonzero values. Means and standard deviations there are not soil temperature quantities. These cells are not marked; use a land mask. NOAA spread: member-weighted population standard deviation with weights normalized over contributing members. This is a temperature difference in K, numerically equal to the difference in degree_Celsius; no temperature offset is applied.
|
K |
storm_relative_helicity_3000_0m
Storm relative helicity (hlcy)dimensions: init_time × statistic × lead_time × y × x
|
m2 s-2 |
temperature_250hpa
Temperature (t)The standard_deviation slice is not populated; read temperature_250hpa_standard_deviation without the statistic dimension, in kelvin differences; 1 K of difference equals 1 degree_Celsius of difference. · dimensions: init_time × statistic × lead_time × y × x
|
degree_Celsius |
temperature_250hpa_standard_deviation
Standard deviation of temperature (temperature_250hpa_standard_deviation)NOAA spread: member-weighted population standard deviation with weights normalized over contributing members. This is a temperature difference in K, numerically equal to the difference in degree_Celsius; no temperature offset is applied.
|
K |
temperature_2m
2 metre temperature (2t)The standard_deviation slice is not populated; read temperature_2m_standard_deviation without the statistic dimension, in kelvin differences; 1 K of difference equals 1 degree_Celsius of difference. · dimensions: init_time × statistic × lead_time × y × x
|
degree_Celsius |
temperature_2m_standard_deviation
Standard deviation of 2 metre temperature (temperature_2m_standard_deviation)NOAA spread: member-weighted population standard deviation with weights normalized over contributing members. This is a temperature difference in K, numerically equal to the difference in degree_Celsius; no temperature offset is applied.
|
K |
temperature_500hpa
Temperature (t)The standard_deviation slice is not populated; read temperature_500hpa_standard_deviation without the statistic dimension, in kelvin differences; 1 K of difference equals 1 degree_Celsius of difference. · dimensions: init_time × statistic × lead_time × y × x
|
degree_Celsius |
temperature_500hpa_standard_deviation
Standard deviation of temperature (temperature_500hpa_standard_deviation)NOAA spread: member-weighted population standard deviation with weights normalized over contributing members. This is a temperature difference in K, numerically equal to the difference in degree_Celsius; no temperature offset is applied.
|
K |
temperature_700hpa
Temperature (t)The standard_deviation slice is not populated; read temperature_700hpa_standard_deviation without the statistic dimension, in kelvin differences; 1 K of difference equals 1 degree_Celsius of difference. · dimensions: init_time × statistic × lead_time × y × x
|
degree_Celsius |
temperature_700hpa_standard_deviation
Standard deviation of temperature (temperature_700hpa_standard_deviation)NOAA spread: member-weighted population standard deviation with weights normalized over contributing members. This is a temperature difference in K, numerically equal to the difference in degree_Celsius; no temperature offset is applied.
|
K |
temperature_850hpa
Temperature (t)The standard_deviation slice is not populated; read temperature_850hpa_standard_deviation without the statistic dimension, in kelvin differences; 1 K of difference equals 1 degree_Celsius of difference. · dimensions: init_time × statistic × lead_time × y × x
|
degree_Celsius |
temperature_850hpa_standard_deviation
Standard deviation of temperature (temperature_850hpa_standard_deviation)NOAA spread: member-weighted population standard deviation with weights normalized over contributing members. This is a temperature difference in K, numerically equal to the difference in degree_Celsius; no temperature offset is applied.
|
K |
temperature_925hpa
Temperature (t)The standard_deviation slice is not populated; read temperature_925hpa_standard_deviation without the statistic dimension, in kelvin differences; 1 K of difference equals 1 degree_Celsius of difference. · dimensions: init_time × statistic × lead_time × y × x
|
degree_Celsius |
temperature_925hpa_standard_deviation
Standard deviation of temperature (temperature_925hpa_standard_deviation)NOAA spread: member-weighted population standard deviation with weights normalized over contributing members. This is a temperature difference in K, numerically equal to the difference in degree_Celsius; no temperature offset is applied.
|
K |
temperature_surface
Skin temperature (skt)The standard_deviation slice is not populated; read temperature_surface_standard_deviation without the statistic dimension, in kelvin differences; 1 K of difference equals 1 degree_Celsius of difference. · dimensions: init_time × statistic × lead_time × y × x
|
degree_Celsius |
temperature_surface_standard_deviation
Standard deviation of skin temperature (temperature_surface_standard_deviation)NOAA spread: member-weighted population standard deviation with weights normalized over contributing members. This is a temperature difference in K, numerically equal to the difference in degree_Celsius; no temperature offset is applied.
|
K |
total_cloud_cover_atmosphere
Total cloud cover (tcc)dimensions: init_time × statistic × lead_time × y × x
|
percent |
total_precipitation_1_hour_surface
Total precipitation (tp)Accumulated over the preceding 1 hour. · dimensions: init_time × statistic × lead_time × y × x
|
kg m-2 |
total_snowfall_1_hour_surface
Total snowfall (asnow)Accumulated over the preceding 1 hour. · dimensions: init_time × statistic × lead_time × y × x
|
m |
vertical_velocity_geometric_700_500mb
Vertical velocity (geometric) (dzdt)Vertical velocity in a layer defined by pressure differences above ground, rather than an isobaric layer. · dimensions: init_time × statistic × lead_time × y × x
|
m s-1 |
vertical_velocity_geometric_700hpa
Vertical velocity (geometric) (dzdt)dimensions: init_time × statistic × lead_time × y × x
|
m s-1 |
vertical_wind_shear_0_6000m
Vertical wind shear (vws)Mean is the weighted mean of member speeds. Standard deviation is sqrt(var(u) + var(v)), the vector spread including variation in direction, rather than the standard deviation of speed. · dimensions: init_time × statistic × lead_time × y × x
|
m s-1 |
vertical_wind_shear_0_609m
Vertical wind shear (vws)Over terrain above roughly 1500 to 1800 m the source does not compute the shear and writes 0. Mean is the weighted mean of member speeds. Standard deviation is sqrt(var(u) + var(v)), the vector spread including variation in direction, rather than the standard deviation of speed. · dimensions: init_time × statistic × lead_time × y × x
|
m s-1 |
visibility_surface
Visibility (vis)Mean and standard deviation exclude members capped at the no-event visibility limit. A large mean can represent the cap when no uncapped member remains; the corresponding zero standard deviation does not imply agreement. · dimensions: init_time × statistic × lead_time × y × x
|
m |
volumetric_soil_moisture_0m
Volumetric soil moisture content (soilw)Over water, absent member soil values enter the statistics as zero, while some members may contribute nonzero values. Means and standard deviations there are not soil moisture quantities. These cells are not marked; use a land mask. · dimensions: init_time × statistic × lead_time × y × x
|
1 |
wind_speed_10m
10 metre wind speed (10si)Mean is the weighted mean of member speeds. Standard deviation is sqrt(var(u) + var(v)), the vector spread including variation in direction, rather than the standard deviation of speed. · dimensions: init_time × statistic × lead_time × y × x
|
m s-1 |
wind_speed_250hpa
Wind speed (ws)Mean is the weighted mean of member speeds. Standard deviation is sqrt(var(u) + var(v)), the vector spread including variation in direction, rather than the standard deviation of speed. · dimensions: init_time × statistic × lead_time × y × x
|
m s-1 |
wind_speed_550hpa
Wind speed (ws)Mean is the weighted mean of member speeds. Standard deviation is sqrt(var(u) + var(v)), the vector spread including variation in direction, rather than the standard deviation of speed. · dimensions: init_time × statistic × lead_time × y × x
|
m s-1 |
wind_speed_80m
80 metre wind speed (80si)Mean is the weighted mean of member speeds. Standard deviation is sqrt(var(u) + var(v)), the vector spread including variation in direction, rather than the standard deviation of speed. · dimensions: init_time × statistic × lead_time × y × x
|
m s-1 |
wind_speed_850hpa
Wind speed (ws)Mean is the weighted mean of member speeds. Standard deviation is sqrt(var(u) + var(v)), the vector spread including variation in direction, rather than the standard deviation of speed. · dimensions: init_time × statistic × lead_time × y × x
|
m s-1 |
wind_speed_925hpa
Wind speed (ws)Mean is the weighted mean of member speeds. Standard deviation is sqrt(var(u) + var(v)), the vector spread including variation in direction, rather than the standard deviation of speed. · dimensions: init_time × statistic × lead_time × y × x
|
m s-1 |
wind_u_10m
10 metre U wind component (10u)Velocity along the model grid's x dimension, not eastward velocity. · dimensions: init_time × statistic × lead_time × y × x
|
m s-1 |
wind_u_250hpa
U component of wind (u)Velocity along the model grid's x dimension, not eastward velocity. · dimensions: init_time × statistic × lead_time × y × x
|
m s-1 |
wind_u_500hpa
U component of wind (u)Velocity along the model grid's x dimension, not eastward velocity. · dimensions: init_time × statistic × lead_time × y × x
|
m s-1 |
wind_u_550hpa
U component of wind (u)Velocity along the model grid's x dimension, not eastward velocity. · dimensions: init_time × statistic × lead_time × y × x
|
m s-1 |
wind_u_700hpa
U component of wind (u)Velocity along the model grid's x dimension, not eastward velocity. · dimensions: init_time × statistic × lead_time × y × x
|
m s-1 |
wind_u_850hpa
U component of wind (u)Velocity along the model grid's x dimension, not eastward velocity. · dimensions: init_time × statistic × lead_time × y × x
|
m s-1 |
wind_u_925hpa
U component of wind (u)Velocity along the model grid's x dimension, not eastward velocity. · dimensions: init_time × statistic × lead_time × y × x
|
m s-1 |
wind_v_10m
10 metre V wind component (10v)Velocity along the model grid's y dimension, not northward velocity. · dimensions: init_time × statistic × lead_time × y × x
|
m s-1 |
wind_v_250hpa
V component of wind (v)Velocity along the model grid's y dimension, not northward velocity. · dimensions: init_time × statistic × lead_time × y × x
|
m s-1 |
wind_v_500hpa
V component of wind (v)Velocity along the model grid's y dimension, not northward velocity. · dimensions: init_time × statistic × lead_time × y × x
|
m s-1 |
wind_v_550hpa
V component of wind (v)Velocity along the model grid's y dimension, not northward velocity. · dimensions: init_time × statistic × lead_time × y × x
|
m s-1 |
wind_v_700hpa
V component of wind (v)Velocity along the model grid's y dimension, not northward velocity. · dimensions: init_time × statistic × lead_time × y × x
|
m s-1 |
wind_v_850hpa
V component of wind (v)Velocity along the model grid's y dimension, not northward velocity. · dimensions: init_time × statistic × lead_time × y × x
|
m s-1 |
wind_v_925hpa
V component of wind (v)Velocity along the model grid's y dimension, not northward velocity. · dimensions: init_time × statistic × lead_time × y × x
|
m s-1 |
Dataset licensed under CC BY 4.0.
NOAA NWS NCEP REFS data processed by dynamical.org from NOAA Open Data Dissemination archives.
Or NOAA REFS from dynamical.org.
The source grib files this archive is constructed from are provided by NOAA Open Data Dissemination (NODD) and accessed from the AWS Open Data Registry.
Storage for this dataset is generously provided by AWS Open Data.
This dataset is stored in Zarr format, which splits each variable into a grid of chunks — the smallest unit read from storage. When possible, aligning your reads with this dataset's chunk grid can significantly improve data access speed.
The element count and coordinate span of this dataset:
| dimension | chunk |
|---|---|
| init_time | 1 (6 hours) |
| statistic | 1 |
| lead_time | 1 (1 hour) |
| y | 1059 (3177 km) |
| x | 1799 (5397 km) |
| uncompressed | 14.5 MiB |
Review the validation report for variable availability, missing data, known quirks, fill values, value distributions, and sample plots.