# ℹ Model Info > This is a work in progress. Please help with a PR 😄 ## HRRR: High Resolution Rapid Refresh ESRL: https://rapidrefresh.noaa.gov/hrrr/ ```{mermaid} gantt title HRRR Version History axisFormat %b-%Y HRRR v1 : v1, 2014-09-30, 2016-8-23 HRRR v2 : v2, after v1, 2018-7-12 HRRR v3 : v3, after v2, 2020-12-2 HRRR v4 :active, v4, after v3 2020-12-2, 2024 RRFS : after v4, 2026 ``` ## RAP: Rapid Refresh ESRL: https://rapidrefresh.noaa.gov/ NCEI: https://www.ncei.noaa.gov/products/weather-climate-models/rapid-refresh-update AWS: https://registry.opendata.aws/noaa-rap/ ```{mermaid} gantt title RAP Model Sources axisFormat %Y section NCEI RUC : 2005-01-01, 2012-05-01 RAP : 2012-05-01, 2022-05-01 section Big Data Program RAP : 2021-02-22, 2022-02-22 ``` ## GFS: ## GEFS: ## ECMWF: