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Rapid Refresh (RAP) and High-Resolution Rapid Refresh (HRRR) Forum
hourly RAP output from NCEP starting 19 Nov
Posted By: Stan Benjamin
Date: 6-November-12 1614Z
Hello, NCEP/NWS is making a change to expand RAP output on 19 November - details below from an NWS Technical Implementation Notice -- http://www.nws.noaa.gov/om/notification/tin11-19aab_ruc.htm . Currently, RAP products on pressure levels on a 13km grid are available out to forecast hour 12 for the 0, 3, 6 ... 21 UTC cycles, and out to 9 hours for the 1, 2, 4, 5... 22, 23 UTC cycles. Starting with this implementation, RAP 13km output out to forecast hour 18 will be available for all 24 cycles of the RAP. The products will be available with WMO headers L*D*** KWBG. More details of the WMO headers can be found at: http://www.nco.ncep.noaa.gov/pmb/changes/rap13wmo_headers.shtml These RAP products are currently made available on the NCEP server and can be retrieved at: http://www.ftp.ncep.noaa.gov/data/nccf/com/rap/prod/
in files with names rap.tXXz.awp130pgrbfYY.grib2, where XX is the model cycle and YY is the forecast hour. -----
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