NOUS41 KWBC 151339
PNSWSH
Technical
Implementation Notice 13-08
National Weather
Service Headquarters Washington, DC
940 AM EDT Fri
Mar 15 2013
To: Subscribers:
-Family of Services
-NOAA Weather Wire Service
-Emergency Managers Weather Information
Network
-NOAAPORT
Other NWS Partners, Users and
Employees
From: John Derber,
Acting Chief
Global Climate and Weather Modeling
Branch
NCEP/Environmental Modeling Center
Subject: Termination of Select Global Forecast
System (GFS) Low-Resolution Products:
Effective April 16, 2013
Effective
Tuesday, April 16, 2013, with the 1200 Universal
Coordinated Time
(UTC) cycle, the National Centers for
Environmental
Prediction (NCEP) will stop producing some legacy
low-resolution gridded products from the Global Forecast
System
(GFS), and stop
disseminating them via NOAAPORT and the NWS ftp
server.
A Public
Information Statement was issued on January 22, 2013,
requesting comments on the proposed termination of
multiple
legacy GFS low-resolution products.
www.nws.noaa.gov/os/notification/pns13gfslegacy.htm
Based on
responses received, NWS will terminate some of the
products proposed for removal. Listed below are the
gridded
products available on NOAAPORT and the NWS FTP server
that will
be removed on April 16, 2013.
Grid Resolution
Area Map
Projection
------------------------------------------------------
Family of Service
(FOS) grids
#21
5x2.5 0-180E, 0-90N latitude/longitude
#22
5x2.5 180W-0, 0-90N latitude/longitude
#23
5x2.5 0-180E, 90S-0 latitude/longitude
#24
5x2.5 180W-0, 90S-0 latitude/longitude
#25 5x5 0-355E,
0-90N latitude/longitude
#26 5x5 0-355E,
90S-0 latitude/longitude
Products
available at 0000 and 1200 cycles for forecast hours 00
to 72, and for 0000 cycle out to 240. Products disseminated via
NWS
FTP server only -- not on NOAAPORT.
WAFS grids
#37
1.25x1.25 0-90N, 330-60E latitude/longitude
#39
1.25x1.25 0-90N, 150-240E latitude/longitude
#40
1.25x1.25 0-90N, 240-330E latitude/longitude
Products
available for 00Z cycle only, forecast hours 96,
120,
144 and 168.
AWIPS grids
#202
190.5 km CONUS Polar Stereographic
#203
190.5 km Alaska Polar Stereographic
Products
available 0000, 0600, 1200, 1800 cycles for
forecast hours 00 to 120, every 6 hours, for 0000
cycle
out to 240 hours.
#204
160 km Hawaii Mercator
#205
190.5 km Puerto Rico Polar Stereographic
Products available 0000 cycle for forecast
hours 00 to
240.
#201
381 km N. Hemisphere Polar Stereographic
All GRIB1 AWIPS
grid #201 products will be removed. This
includes the dataset known as "gfsLR" in AWIPS.
Note: The GRIB2
AWIPS grid #201 dataset will not be removed.
This is the
dataset known as "gfs360" in AWIPS.
More information
about the grids listed above is available at
http://www.nco.ncep.noaa.gov/pmb/docs/on388/tableb.html
The WMO headers
for products to be removed are listed at:
http://www.nco.ncep.noaa.gov/pmb/changes/docs/gfs_legacy_remove_final.shtml
A catalog of GFS
output products and their availability on
multiple ftp servers can be found at
http://www.nco.ncep.noaa.gov/pmb/products/
If you have
questions about this termination, please contact:
John Derber
NWS/NCEP Environmental Modeling Center
College Park, MD
or
Rebecca Cosgrove
NWS/NCEP Central Operations
College Park, MD
National Public
Information Statements are online at:
http://www.weather.gov/os/notif.htm
$$