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-------- Original Message --------
848
NOUS41 KWBC 171648
PNSWSH
Technical Implementation Notice 13-33
National Weather Service Headquarters Washington DC
1250 PM EDT Thu Oct 17 2013
To: Subscribers:
-Family of Services
-NOAA Weather Wire Service
-Emergency Managers Weather Information Network
-NOAAPORT
Other NWS Partners, Users and Employees
From: Timothy McClung
Chief, Science Plans Brach
Office of Science and Technology
Subject: Add fields to GFS WAFS Upper Air files:
effective November 13, 2013
On or about Wednesday, November 13, 2013, with the 1200 Universal
Coordinated Time (UTC) model cycle, the National Centers for
Environmental Prediction (NCEP) will add new parameters for four
flight levels to the Global Forecast System (GFS)-based World
Area Forecast System (WAFS) Upper Air data set available on the
NCEP server.
Data will be added for:
FL80 (Flight Level 8,000 ft)
FL210 (Flight Level 21,000 ft)
FL410 (Flight Level 41,000 ft)
FL490 (Flight Level 49,000 ft)
Temperature, geopotential height, and u and v component of the
wind will be added for all levels. Relative Humidity will be
added for FL80 and FL210 only.
These fields will be available on the NCEP server at:
http://www.ftp.ncep.noaa.gov/data/nccf/com/gfs/prod/
ftp://ftp.ncep.noaa.gov/pub/data/nccf/com/gfs/prod/
in files with names gfs.tXXz.wafs_grb45fYY.grib2,
where XX is the model cycle, and YY the forecast hour.
Sample files with the new fields are available at
ftp://ftp.ncep.noaa.gov/pub/data1/nccf/com/wafs
For questions regarding these changes, please contact:
John Derber
NCEP/Environmental Modeling Center
College Park, Maryland
Phone: 301-683-3662
john.derber@xxxxxxxx
National Public Information Statements are online at:
http://www.nws.noaa.gov/os/notif.htm
$$
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