GRIB Model

HRRR 48hr - High Resolution Rapid Refresh

Provider:National Centers for Environmental Prediction, NOAA (USA)
Model scope:North America
Update frequency:every 6 hours
Resolution:1.6nm, 3.0km
Model duration:29 forecasts starting at 0 hr, ending at 2 days
Parameters:pressure, wind, wind gust, rain, cloud, temperature, humidity, dew point, convection, smoke, simulated radar, precipitable water, lightning, visibility, 0C isotherm, 250 mb, 500 mb, 850 mb
GRIB model date:Mon Jul 15 18:00:00 2024 UTC
Download date:Mon Jul 15 19:59:33 2024 UTC
Download delay:1hr 59min

Note: the Download delay is the amount of time required for the GRIB model to compute its forecast and then for the LuckGrib cluster to download the data and make it available. The LuckGrib delay is generally less than 10 minutes, the remainder of the delay is the model compute time.


This extended, 48 hour version of HRRR offers all of the parameters available in the main HRRR model.

The HRRR model is run every hour. Normally, the HRRR model runs generate forecast data for 18 hours. Four of the model runs each day generate additional forecasts, out to 48 hours.

This model is updated from the main HRRR model, however this version of HRRR only updates for the model cycles where there is extended forecast model data.

This model is updated for the model runs: 00Z, 06Z, 12Z and 18Z.

It takes roughly 1hr 50min after the model cycle time, the reference times above, for the data to become available.

For more information, see the main HRRR page.

Global Models

Large Regional

North America




OpenWRF - Europe

Server Status

Server Status for OpenWRF Models