|Provider:||National Centers for Environmental Prediction, NOAA (USA)|
|Update frequency:||every 3 hours|
|Model duration:||19 forecasts starting at 0 hr, ending at 18 hrs|
|Parameters:||pressure, wind, wind gust, rain, cloud, temperature, humidity, simulated radar, 250 mb, 500 mb, 850 mb|
|GRIB model date:||Sun Aug 19 12:00:00 2018 UTC|
|Download date:||Sun Aug 19 13:09:44 2018 UTC|
|Download delay:||1hr 09min|
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.