GRIB Model

HRRR Alaska - High Resolution Rapid Refresh

Provider:National Centers for Environmental Prediction, NOAA (USA)
Model scope:Alaska
Update frequency:every 3 hours
Resolution:1.6nm, 3.0km
Model duration:19 forecasts starting at 0 hr, ending at 18 hrs
Parameters:pressure, wind, wind gust, rain, cloud, temperature, humidity, simulated radar, visibility, 250 mb, 500 mb, 850 mb
GRIB model date:Mon May 27 03:00:00 2019 UTC
Download date:Mon May 27 04:08:32 2019 UTC
Download delay:1hr 08min


HRRR Alaska is a high resolution model offering short term forecasts updated every hour.

The following description has been taken directly from the official documentation

The HRRR is a NOAA real-time 3-km resolution, hourly updated, cloud-resolving, convection-allowing atmospheric model, initialized by 3km grids with 3km radar assimilation. Radar data is assimilated in the HRRR every 15 min over a 1-h period adding further detail to that provided by the hourly data assimilation from the 13km radar-enhanced Rapid Refresh

There is a short video available which describes the model further.

Storms: Note that this model is intended to be able to resolve storms. Storms can change rapidly, and as this model is both updated frequently (every 3 hours) and has a high resolution, it may be the best choice for watching storms develop and progress.

Global Models

North America




OpenWRF - Europe

Server Status

Server Status for OpenWRF Models