Upcoming Mesoscale Branch Implementations


If the link is active, click on model to see more information on recent or upcoming implementations.
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Model

What

When

RTMA/URMA v2.6, PCPANL v3.0 Implement “GLERL adjustment” to coastal obs near Great Lakes; Add cloud cover, cloud ceiling analysis, unified terrain for OCONUS; 15-minute CONUS RU-RTMA output; Add dew point, wind, ceiling and visibility to airport listings for FAA; Hourly URMA for ConUS and Puerto Rico (requirement from MDL/NBM); Add significant wave height analysis; start use of UrbaNet observations; Loosen obs QC tolerances on mesonet temperature and moisture; Add min/maxRH analysis (all domains); Use EMC/GFE unified terrain and land/sea mask for OCONUS domains; Hourly QPE from Puerto Rico; For CONUS: currently the Stage IV hourly does not cover Northwest RFC and CA/NV RFC domains (due to lack of hourly input). For this implementation, use the hourly gauge-corrected MRMS to dis-aggregate the 6-hourly QPE from Northwest RFC and CA/NV RFC into hourly amounts, then combine them with the hourly QPEs from the other 10 RFCs, to cover the entire CONUS. Fall 2017
HREFv2/HIRESWv7 Increase horizontal resolution of existing members from 4.2 km to 3.2 km; add "NSSL" WRF-ARW member (to operationalize Storm-scale Ensemble of Opportunity (SSEO); enhance HREF ensemble products, add OCONUS product generation. Fall 2017
RAPv4/HRRRv3 Upgrade to WRF 3.8.1; extend 00z/06z/12z/18z runs to 36-h; Alaska HRRR; upgrade MYNN PBL and surface physics; improve surface data and cloud assimilation; enhancement of land-sfc model Late Winter/Early Spring 2018