Data Sources

Data Updates

Each data source has a specific forecast 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: ~25km (0.25°) / 1-3hr

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.


NOAA MWW3 aka NWW3 (waves)

Region: Global

Resolution: ~50km (0.5°) / 13hr

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 GDPS

Region: Global

Resolution: ~15km (0.15°) / 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.


CMC GDWPS (waves)

Region: Global

Resolution: ~25km (0.25°) / 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.


CAMS Air Quality/UV

Region: Global

Resolution: ~40km (0.4°) / 1hr

Time Period: 5-days

Forecast Updates: every 12 hours

Data: UV Index, PM2.5, PM10, NO2, SO2, CO, O3 (ozone)


NOAA HYSPLIT Smoke

Region: Continental USA (see Region Domain map)

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)

Resolution: 5km / 1hr

Time Period: 48-hours

Forecast Updates: every 24 hours

Data: near surface smoke, integrated column smoke.


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.

For more detail, see the Storm/Hurricane Track help page.


Sunrise/set & Moonrise/set

Region: Global

Data: sunrise/set time, moonrise/set time, moon phase

For more detail, see the Sun/Moon help page.


RainViewer Radar

(Silver/Gold subscriptions)

Region: Global with restricted coverage - see map

Resolution: variable down to 2km

Time Period: 3-day historical

Forecast Updates: 10 minutes

Data: radar reflectivity

For more detail, see the Rainviewer Radar help page.


NOAA NAM 12km

(Silver/Gold subscriptions)

Region: Continental USA (see Region Domain map)

Resolution: 12km / 1-3hr

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, predicted radar reflectivity (composite, 1km, 4km).


DWD ICON

(Silver/Gold subscriptions)

Region: Global

Resolution: 13km / 1-3hr

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/Gold subscriptions)

Region: Europe (see Region Domain map)

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/Gold subscriptions)

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

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.


NOAA NAM 3km

(Gold subscription)

Region: Continental USA (see Region Domain map)

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, predicted radar reflectivity (composite, 1km, 4km).


NOAA HRRR

(Gold subscription)

Region: Continental USA (see Region Domain map)

Resolution: 3km / 15min

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 subscription)

Region: Global

Resolution: ~9km (0.083°) / 3hr

Time Period: 7-days

Forecast Updates: every 24 hours

Data: sea surface temperature, salinity and currents.


DWD ICON-EU

(Gold subscription)

Region: Europe (see Region Domain map)

Resolution: ~7km (0.0625°) / 1hr

Time Period: 5-days

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 ICON D2

(Gold subscription)

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 subscription)

Region: France Region (see Region Domain map)

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 subscription)

Region: Europe + (see Region Domain map)

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 subscription)

Region: Canada (see Region Domain map)

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 subscription)

Region: Netherlands+ (see Region Domain map)

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 5km

(Gold subscription)

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.


Expedition Marine

(Gold subscription)

Region: various locations

Resolution: 1km/3km/9km - 30mins/1hr

Time Period: 24/36/72hrs

Forecast Updates: every 6 hours

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