[nws-changes] 20121115: Fwd: amended-addn of GLMP prods-ADMIN NOTICE NOUS41 KWBC

NOTE: The nws-changes mailing list is no longer active. The list archives are made available for historical reasons.


-------- Original Message --------

936
NOUS41 KWBC 152114
PNSWSH
Technical Implementation Notice 11-18, Amended 
National Weather Service Headquarters Washington DC
415 PM EST Thu Nov 15 2012
To: Subscribers: 
         - Family of Services
         - NOAA Weather Wire Service
         - Emergency Managers Weather Information Network
         - NOAAPORT
         Other NWS partners, users and NWS employees
From: Tim McClung 
         Science Plans Branch Chief
         Office of Science and Technology
Subject: Amended: Addition of Gridded Localized Aviation Model 
         Output Statistics Program (GLMP) Products to NOAAPORT:
         Effective Monday, December 17, 2012
Amended to reschedule the addition of products that had been 
delayed and to announce the addition of super headers within the
GLMP forecast grids.

Effective Monday, December 17, 2012, beginning with the 1800
Coordinated Universal Time (UTC) run, NWS will transition the
experimental GLMP products to operational status, at which time
the products will be disseminated on the SBN, NOAAPORT, and will
be available in the operational National Digital Guidance
Database (NDGD).

On August 22, 2011, NWS changed the experimental GLMP products
for the contiguous United States (CONUS). The following changes
to the experimental data occurred:
1. Products include WMO headers in anticipation of the transition 
   to operations
2. Products are encoded with binary scaling to produce
   smaller files
3. Special value to designate "unlimited ceiling height or
   ceiling height" > 12,000 feet changed from the current
   value of -1 to the new value of -100
The Gridded LAMP products contain guidance on a 2.5 km 
Lambert Conformal grid covering the same expanse as the National
Digital Forecast Database (NDFD) CONUS grid.  Grids are generated
hourly consisting of gridded forecasts for projections of 1 to 25
hours in advance as well as gridded observations for the initial
time of the Gridded LAMP cycle. Grids will be available for the
following elements with others to be added later:
2-meter temperature observations and the associated error 
     estimations
  2-meter dewpoint temperature observations and the associated
     error estimations
  Ceiling height observations
  Visibility observations
  2-meter temperature forecast guidance
  2-meter dewpoint temperature forecast guidance
  Ceiling height forecast guidance
  Visibility forecast guidance
The products are available in GRIB2 format and are currently 
available in the experimental NDGD. They are available on the NWS
server at:
ftp://tgftp.nws.noaa.gov/SL.us008001/ST.expr/DF.gr2/DC.ndgd/GT.lm 
pgfs/AR.conus
 or
http://weather.noaa.gov/pub/SL.us008001/ST.expr/DF.gr2/DC.ndgd/GT
.lmpgfs/AR.conus
Effective on Monday, December 17, 2012, beginning with the 1800 
Coordinated Universal Time (UTC) run, the products will be
available in GRIB2 format in the operational NDGD, and will no
longer be available in the experimental NDGD. They will be
available on the NWS server at:
ftp://tgftp.nws.noaa.gov/SL.us008001/ST.opnl/DF.gr2/DC.ndgd/GT.gl 
mp/AR.conus
or 

http://weather.noaa.gov/pub/SL.us008001/ST.opnl/DF.gr2/DC.ndgd/GT
.glmp/AR.conus
A web page outlining the Gridded LAMP products and the NWS server 
directory and file structure can be found online at:
http://www.nws.noaa.gov/mdl/gfslamp/docs/glmpinfo.php The new communication identifiers for the GRIB2 products are 
shown below in Tables 1 and 2.  The GRIB2 files for the GLMP
gridded observation products will continue to contain WMO
headers.  The GRIB2 files for the GLMP gridded forecast products
will continue to contain WMO headers, but will also contain super
headers.  A complete list of GLMP WMO headings is available at
http://www.nws.noaa.gov/mdl/gfslamp/docs/glmpheaders.pdf Table 1: Communication identifiers for the GLMP gridded 
observation products in GRIB2 format.  Listed below are
representations of the WMO headings. Here xx represents the valid
UTC hour (00-23).
WMO HEADING ELEMENT 
-----------     -------
LAUAxx KMDL     2-meter gridded temperature observations
LAUBxx KMDL     2-meter gridded temperature observation
                error estimations
LBUAxx KMDL     2-meter gridded dewpoint temperature
                observations
LBUBxx KMDL     2-meter gridded dewpoint temperature
                observation error estimations
LCUAxx KMDL     Gridded ceiling height observations
LDUAxx KMDL     Gridded visibility gridded observations
Table 2: Communication identifiers for the GLMP gridded forecast 
products in GRIB2 format. Listed below are representations of the
WMO headings: xx represents the forecast projection (01-25).
WMO SUPER HEADER WMO HEADING ELEMENT 
----------------  -----------     -------
LKUZ98 KMDL       LKUAxx KMDL     Gridded 2-meter temperature
                                  forecasts
LLUZ98 KMDL       LLUAxx KMDL     Gridded 2-meter dewpoint
                                  temperature forecasts
LMUZ98 KMDL       LMUAxx KMDL     Gridded ceiling height
                                  forecasts
LNUZ98 KMDL       LNUAxx KMDL     Gridded visibility forecasts
If you have technical comments or questions, please contact: Judy Ghirardelli 
National Weather Service
Meteorological Development Laboratory
Judy.Ghirardelli@xxxxxxxx
301-713-0056 x194
Links to the LAMP products and descriptions can found at: http://www.nws.noaa.gov/mdl/gfslamp/gfslamp.shtml National Public Information Statements are online at: http://www.weather.gov/os/notif.htm $$
  • 2012 messages navigation, sorted by:
    1. Thread
    2. Subject
    3. Author
    4. Date
    5. ↑ Table Of Contents
  • Search the nws-changes archives: