UnRestricted Mesoscale Analysis
Last update: 25 Feb 2015
6-hourly multi-sensor precipitation estimates received from the 12 ConUS River
Forecast Centers are mosaicked into a national product (the
NCEP Stage IV)
and remapped to the ConUS and Northwest NDFD grids.
Operational implementation: 28 Jan 2014. Availale on the NWS SBN (see WMO
header info below).
On NCEP FTP:
On NCEP NOMADS:
File name: pcpurma_g184.yyyymmddhh.06h
WMO header: LEQA98 KWBR
File name: pcpurma_g188.yyyymmddhh.06h
WMO header: LERA98 KWBR
Future upgrade, planned for 7 Aug 2015:
- Mosaics re-made 1/3/5/7 days later
- Sources of 6-hourly mosaic QPE for Stage IV/URMA: currently the 6-hourly
Stage IV is a mosaic of the 6-hourly QPEs from the 12 ConUS RFCs.
For this release, we first produce 6-hourly totals from the eight
Eastern/Central RFCs’ hourly QPEs, then combine these 6-hourly totals
with the four Western RFCs’ (NWRFC, CNRFC, CBRFC, MBRFC) 6-hourly QPEs
to arrive a 6-hourly ConUS QPE.
Technical Implementation Notice
Additional info/examples of impact
Official experimental data for evaluation, starting 25 Feb 2015
Developer's parallel run output, starting Apr 2014: