Show page Old revisions Backlinks This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong. ======High-Resolution Rapid Refresh Model (HRRR)====== The HRRR is a [[models|weather model]] that updates every hour and only operates over the Continental US. It operates at a high resolution and each frame is one hour, and the run duration is 18 hours, making it an essential tool in the day or hours leading up to a storm system. [[http://southernwx.com/community/|SouthernWx Home]]