Gridded LAMP products are produced in the NWS operational
jobstream. The data are
sent from NCEP to the operational NDGD area, as well as across the Satellite
Broadcast Network (SBN) and NOAAPort.
Gridded forecast guidance and gridded
observations are available for the following elements:
- 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
- 10-m Wind Speed
- 10-m Wind Direction
- Opaque Sky Cover
Additional elements will follow in time.
Notes about the data
|
Gridded Element
|
Units
|
Special Values
|
|
Gridded Obs, Fcsts, and Error Estimates of Temperature, Dewpoint
|
Degrees Kelvin
|
None
|
|
Gridded Obs and Fcsts of Ceiling Height
|
Meters
|
Value of -1 in GRIB2 represent EITHER an unlimited ceiling, or a ceiling
> 12,000 feet
|
|
Gridded Obs and Fcsts of Visibility
|
Meters
|
None
|
|
Gridded Obs and Fcsts of Wind Speed
|
m/s
|
None
|
|
Gridded Obs and Fcsts of Wind Direction
|
10's of Degrees
|
None
|
|
Gridded Obs and Fcsts of Opaque Sky Cover
|
Percent
|
None
|
Graphical depictions of these
products are available on the LAMP web site
http://weather.gov/mdl/gfslamp/gfslamp.shtml
and the data in GRIB2 format are available for download
via anonymous ftp or http access from the NWS tgftp server.
The details for retrieving the data from the NWS server can
be found in the table below.
For details regarding the GRIB2 products see
http://www.nws.noaa.gov/mdl/gfslamp/docs/glmpgrib2.php
Gridded LAMP Products available on NWS server
FTP method:
ftp to tgftp.nws.noaa.gov
username is anonymous
supply your email address for the password
set type binary for GRIB2 data
change directory to what is specified in the table below
get the desired file(s) (specified below)
HTTP method:
Point browser to URL given below (or click on link)
|
Grid Type
|
NWS server location
|
|
Gridded LAMP Observations
|
FTP Method:
cd to this directory:
SL.us008001/ST.expr/DF.gr2/DC.ndgd/GT.lmpgfs/AR.conus/RT.HH
where HH=hour of Gridded LAMP observations, 00, 01, 02, ..., 23 in UTC.
HTTP method:
http://weather.noaa.gov/pub/SL.us008001/ST.expr/DF.gr2/DC.ndgd/GT.lmpgfs/AR.conus/
Select RT.HH where HH is the desired hour, then select desired files according to file name
descriptions below.
Get the desired files:
-
ds.temp.bin - 2-meter temperature observations
-
ds.utemp.bin - error estimations of temperature analysis
-
ds.td.bin - 2-meter dewpoint temperature observations
-
ds.utd.bin - error estimations of dewpoint temperature analysis
-
ds.cigh.bin - ceiling height observations
-
ds.vis.bin - visibility observations
-
ds.wspd.bin - 10-m wind speed observations
-
ds.wdir.bin - 10-m wind direction observations
-
ds.sky.bin - opaque sky cover observations
|
|
Gridded LAMP Forecasts
|
FTP Method:
cd to this directory:
SL.us008001/ST.expr/DF.gr2/DC.ndgd/GT.lmpgfs/AR.conus/VP.001-003
HTTP access:
http://weather.noaa.gov/pub/SL.us008001/ST.expr/DF.gr2/DC.ndgd/GT.lmpgfs/AR.conus/VP.001-003
Select desired files according to file name descriptions below.
Get the desired files:
-
ds.temp.bin - 2-meter temperature LAMP forecasts
-
ds.td.bin - 2-meter dewpoint temperature LAMP forecasts
-
ds.cigh.bin - ceiling height LAMP forecasts
-
ds.vis.bin - visibility LAMP forecasts
-
ds.wspd.bin - 10-m wind speed forecasts
-
ds.wdir.bin - 10-m wind direction forecasts
-
ds.sky.bin - opaque sky cover forecasts
|
For more information, please refer to the
Gridded LAMP documentation page.
|
www.nws.noaa.gov
