Here is an informative slide from Dorothy Koch's #AMS2021 presentation on the Unified Forecast System (UFS). GFSv17 & GEFSv13 will merge, & physics will be updated too. A new FV3-based regional ensemble (RRFS) is being developed, as well as a new FV3-based hurricane model (HAFS). pic.twitter.com/GxgnjMVXCv

— Dr. Alicia M Bentley (@AliciaMBentley) January 11, 2021