GFS-LAMP AWIPS OB7.2 Training Job Sheets

Displaying GFS-LAMP in D2D

GFS-LAMP Products Available in the NCEP/Hydro Menu
  Viewing a GFS-LAMP Text Bulletin
  Displaying Station and Ceiling Height/Visibility Plots
GFS-LAMP Products in the Volume Browser
  Displaying Thunderstorm Probabilities/Best Category
  Creating GFS-LAMP Time Series Plots
  Cannot Display Text Bulletins
More Information
  Introduction to GFS-LAMP
  GFS-LAMP Website

Viewing a GFS-LAMP Text Bulletin

  1. Select the Tools Menu
  2. Select the Text Window option
  3. Enter an AWIPS ID (ex: LAVBWI)
  4. Select FOUS11 followed by the appropriate station ID
  5. Choose desired cycle
  6. Click Load and Continue or Load and Close
  7. To view a previously loaded text bulletin, click Load History and select the station

    Text Window

Displaying Station and Ceiling Height/Visibility Plots

  1. Set frames to 26
  2. Select the NCEP/Hydro Menu
  3. Under Local Analyses/Statistical Guidance, select LAMP/MOS Forecasts
  4. Under GFSLAMP, choose GFSLAMP Station Plot or GFSLAMP Ceil/Vsby

    NCEP Hydro Menu     Right Arrow     LAMP/MOS Forecasts Menu

Displaying Thunderstorm Probabilities/Best Category

  1. Set frames to 14
  2. Select the Volume Menu
  3. Click on Browser... to open the Volume Browser
  4. Select "Plan View" and "Time"
  5. Under Sources, click Grid and choose GFS LAMP-Grid
  6. Under Fields, click Sfc/2D and select GFSLAMP Gridded
  7. Choose one of the following:
    1. Tstorm Prob for 2-HR Thunderstorm Probabilites
    2. Tstorm Occur for Categorical Y/N Forecasts
  8. Make sure Surface Plane is selected (under Planes->Misc)
  9. Click Load to display graphic

    Volume Browswer T'Storm

Creating GFS-LAMP Time Series Plots

  1. Set frames to 26
  2. Select the Volume Menu
  3. Click on Browser... to open the Volume Browser
  4. Select "Time Series" view. A box labeled "Point A" should appear to the right.
  5. Under the Tools dropdown menu, select "Points." You can choose which station's time series to view in either of the following ways:
    1. On the US map, click and drag one of the points to place it on a station of your choosing -OR-
    2. Under the Tools dropdown, select "Choose Station by ID." In the first box next to one of the point labels, input the four letter station ID and then press Enter. Close the window and make sure the appropriate point is selected at the top of the browser.
  6. Under Sources, click Other and select GFS LAMP-Stn
  7. Under Fields, Select element(s) to display in time series plot by doing any of the following
    1. Click Basic and choose any of the available elements (colored green)
    2. Click Sfc/2D and select GFSLAMP Station or GFSLAMP Gridded
    3. Click Other and choose any of the available elements
  8. (OPTIONAL) If you would like to view an overlay of available verifying observational reports, you can select METAR under Sources->Other to load the observed data for the selected elements under Fields
  9. Make sure Surface Plan is selected (under Planes->Misc)
  10. Click Load to display plot

    Volume Browser Time Series

Cannot Display Text Bulletins

  1. Check the /awips/fxa/data/collective_table.dat file. If this file is from before 2006, it is likely the source of this problem.
  2. To correct this error, do one of the following
    1. Download updated collective_table.dat file from NOAA1
    2. Add header entry of FOUS11 AAALAVXXX in alphabetical order to the collective_table.dat file
  3. Restart data ingest on dx3

Introduction to GFS-LAMP

LAMP is a statistical system which provides forecast guidance for sensible weather elements. The LAMP system was originally designed to update the NGM MOS by using the most recent surface observations, simple locally run model output, and the NGM MOS guidance itself. The NGM-LAMP system has been redeveloped to update the GFS-MOS guidance instead of the NGM-MOS. This system, the Localized Aviation MOS Program (LAMP), is referred to here as GFS-LAMP. GFS-LAMP consists of a series of programs to analyze hourly weather data, run simple numerical models, evaluate statistical forecast equations, and display the resulting information. The statistical forecasts are produced by multiple linear regression equations that combine information from the central GFS-MOS guidance, local model output, and the most recent hourly surface observations. GFS-LAMP guidance updates each hour by using the latest observational information and also furnishes forecasts for hourly projections for over 1500 stations in the CONUS, Hawaii, Alaska, Puerto Rico, and the Virgin Islands with a record of hourly data.

GFS-LAMP provides hourly forecasts for up to 25 projections at locations currently receiving GFS-MOS guidance.

The three simple numerical models used in GFS-LAMP are a sea level pressure model, a moisture model for saturation deficit, and a model producing advective forecasts for variables such as surface temperature and cloud amount. These models are driven by NCEP's GFS model.

The table below details the available GFS-LAMP products and where they can be accessed in AWIPS-D2D.

ProductDisplay via:
Text Bulletintext database, AWIPS PIL of LAV, NCEP/Hydro Menu
Station plots of forecast guidanceNCEP/Hydro Menu
Station Ceiling/Visibility forecast guidanceNCEP/Hydro Menu
Time series of station guidanceVolume Browser
Gridded thunderstorm guidanceVolume Browser

GFS-LAMP Website

For more information about the GFS-LAMP, visit the GFS-LAMP Documentation Page
To view GFS-LAMP products online, visit the GFS-LAMP Realtime Products Page

US Dept of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
1325 East-West Highway
Silver Spring, MD 20910
Meterological Development Laboratory
Web site owner: LAMP Webmaster
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Page Last Modified: February 15, 2008. 16:52  UTC