MRMS General Information

MRMS Operational Product Viewer - Real-Time, publicly available web display for all MRMS operational products and all domains (CONUS, Hawaii, Alaska, Caribbean, and Guam). Limited display of archived data also available.

MRMS Product Guide - Developed by the NWS Warning Decision Training Division, this quick look guide provides general descriptions of all MRMS operational products and is updated with each new release.

MRMS Operational Training - The NWS Warning Decision Training Branch's online training course for MRMS.

MRMS information on the NSSL Web Pages - a broad overview.

MRMS Operational GRIB2 Tables - Overview of GRIB2 filename and parameter tables (updated for V12.1).

Recent Service Change Notices and Public Information Statements

January 27, 2021: SCN21-17 - Upgrade of Multi-Radar Multi-Sensor (MRMS) System to v12.1.0: Effective February 23, 2021. (supplemental information)

November 19, 2020: PNS20-86 - Soliciting Public Comments Through December 19, 2020 on Proposed Changes to MRMS Products Available on SVN and the Removal of Binary Products from the MRMS System