Data Sources

Data Updates

Each data source has a specific forecast data update frequency.  To view the next update time for the data source selected in the app, click on the top-right menu and select Info.

NOAA GFS (FV3)

Region: Global

Resolution: 0.25° (~25km) / 3hr

Time Period: 7-days (free version), up to 16-days (pro version)

Forecast Updates: every 6 hours

Data: precipitation, total cloud, temperature, mean-sea-level pressure, relative humidity, wind speed, gusts and direction, CAPE, Lifted Index, dew-point temperature, low/mid/high cloud, boundary cloud, convective cloud.

CMC GDPS (15km)

Region: Global

Resolution: 0.15° (~15km) / 3hr

Time Period: 7-days (free version), up to 10-days (pro version)

Forecast Updates: every 12 hours

Data: precipitation, total cloud, temperature, mean-sea-level pressure, relative humidity, wind speed, gusts and direction, dew-point temperature.

NOAA NWW3

Region: Global

Resolution: 0.5° (~50km) / 3hr

Time Period: 7-days

Forecast Updates: every 6 hours

Data: Significant wave height, period and direction, wind wave height, period and direction, swell 1 wave height, period and direction, swell 2 wave height, period and direction.

CMC GDWPS

Region: Global

Resolution: 0.25° (~25km) / 3hr

Time Period: 5-days

Forecast Updates: every 12 hours

Data: Significant wave height, period and direction, wind wave height, period and direction, swell 1 wave height, period and direction.

NOAA HYSPLIT Smoke

Region: Continental USA (see Region Domain map below)

Resolution: 5km / 1hr

Time Period: 48-hours

Forecast Updates: every 24 hours

Data: near surface smoke, integrated column smoke.

NOAA HRRR Smoke - EXPERIMENTAL

Region: Continental USA (see Region Domain map below)

Resolution: 3km

Time Period: 36-hours

Forecast Updates: every 6 hours

Data: surface smoke, integrated column smoke, fire radiative power.

Storm/Hurricane Tracks - NOAA & CMC

Region: Global

Forecast Updates: every 6hrs (NOAA), and 12hrs (CMC)

Data: NOAA GFS storm track model and NOAA GEFS ensemble models, CMC GDPS storm track model and CMC CENS ensemble models. (note: see What do the Storm Tracks show? for more info)

NOAA NAM 12km (Silver+)

Region: Continental USA (see Region Domain map below)

Resolution: 12km / 3hr

Time Period: 84-hours

Forecast Updates: every 6 hours

Data: precipitation, total cloud, temperature, mean-sea-level pressure, relative humidity, wind speed and direction, CAPE, Lifted Index, dew-point temperature, low/mid/high cloud.

DWD ICON (Silver+)

Region: Global

Resolution: 13km / 3hr

Time Period: 5-days (120-hours)

Forecast Updates: every 6 hours

Data: precipitation, total cloud, temperature, mean-sea-level pressure, relative humidity, wind speed, gusts and direction, dew-point temperature, snow.

MeteoFrance ARPEGE (Silver+)

Region: Europe (see Region Domain map below)

Resolution: ~11km / 1hr

Time Period: 60-hours

Forecast Updates: every 6 hours

Data: precipitation, total cloud, temperature, wind speed and direction, dew-point temperature, mean-sea-level pressure, relative humidity.

CMC RDPS (Silver+)

Region: Canada, USA (incl. Alaska), Greenland, Iceland (see Region Domain map below)

Resolution: ~10km / 1hr

Time Period: 48-hours

Forecast Updates: every 6 hours

Data: precipitation, total cloud, temperature, mean-sea-level pressure, relative humidity, wind speed, gusts and direction, dew-point temperature.

RainViewer Radar (Silver+)

Region: Various locations worldwide (see radar location map below)

Resolution: varies

Time Period: 3 days history

Forecast Updates: every 10 minutes

Data: radar reflectivity

NOAA NAM 3km (Gold)

Region: Continental USA (see Region Domain map below)

Resolution: 3km / 1hr

Time Period: 60-hours

Forecast Updates: every 6 hours

Data: precipitation, total cloud, temperature, mean-sea-level pressure, relative humidity, wind speed and direction, CAPE, Lifted Index, dew-point temperature, low/mid/high cloud.

NOAA HRRR (Gold)

Region: Continental USA (see Region Domain map below)

Resolution: 3km / 1hr

Time Period: 18-hours

Forecast Updates: every hour!!

Data: precipitation, total cloud, temperature, mean-sea-level pressure, relative humidity, wind speed and direction, CAPE, Lifted Index, dew-point temperature, low/mid/high cloud, predicted radar reflectivity (composite, 1km, 4km).

NOAA RTOFS Ocean Model (Gold)

Region: Global

Resolution: 0.083° (~9km) / 3hr

Time Period: 7-days

Forecast Updates: every 24 hours

Data: sea surface temperature, salinity and currents.

DWD ICON-EU (Gold)

Region: Europe (see Region Domain map below)

Resolution: 0.0625° (~7km) / 3hr

Time Period: 5-days (120-hours)

Forecast Updates: every 6 hours

Data: precipitation, total cloud, temperature, mean-sea-level pressure, relative humidity, wind speed, gusts and direction, dew-point temperature, snow.

DWD COSMO D2 (Gold)

Region: Germany+ (see Region Domain map)

Resolution: 2.2km / 1hr

Time Period: 27-hours

Forecast Updates: every 3 hours

Data: precipitation, total cloud, temperature, mean-sea-level pressure, relative humidity, wind speed, gusts and direction, dew-point temperature, snow.

MeteoFrance AROME (Gold)

Region: France Region (see Region Domain map below)

Resolution: ~2.8km and ~1.3km / 1hr

Time Period: 36-hours

Forecast Updates: every 6 hours

2.8km Res Data: precipitation, total cloud, dew-point temperature, mean-sea-level pressure, convective cloud.

1.3km Res Data: temperature, wind speed and direction, relative humidity, low/med/high cloud, CAPE.

European Consortium HIRLAM (Gold)

Region: Europe + (see Region Domain map below)

Resolution: 7.5km / 1hr

Time Period: 54-hours

Forecast Updates: every 6 hours

Data: precipitation, total cloud, low/med/high cloud, temperature, dew-point temperature, mean-sea-level pressure, relative humidity, wind speed, gusts and direction

CMC HRDPS (Gold)

Region: Canada (see Region Domain map below)

Resolution: ~2.5km / 1hr

Time Period: 48-hours

Forecast Updates: every 6 hours

Data: precipitation, total cloud, temperature, mean-sea-level pressure, relative humidity, wind speed, gusts and direction, dew-point temperature.

KNMI HARMOINE 2.5km (Gold)

Region: Netherlands+ (see Region Domain map below)

Resolution: ~2.5km / 1hr

Time Period: 48-hours

Forecast Updates: every 6 hours

Data: precipitation, total cloud, temperature, mean-sea-level pressure, relative humidity, wind speed, gusts and direction, dew-point temperature.

KNMI HARMONIE 5km (Gold)

Region: Eurpoe/UK (see Region Domain map below)

Resolution: ~5km / 1hr

Time Period: 48-hours

Forecast Updates: every 6 hours

Data: precipitation, total cloud, temperature, mean-sea-level pressure, relative humidity, wind speed, gusts and direction, dew-point temperature.