MRMS v12.2.0 was made operational at NCEP Central Operations for the NWS on 22 April 2022. This update primarily focused on the implementation of the new Canadian S-band radars into the MRMS system. Other updates included improvements to radar quality control, radar QPE, and gauge ingest/metadata.

More details about MRMS v12.2.0 can be found here: Code Updates Page

Operational Product Viewer Web Page: https://mrms.nssl.noaa.gov/qvs/product_viewer/