WHERE AMERICA'S CLIMATE AND WEATHER SERVICES BEGIN

NGMIBM Job Suite

(Last Modified on 13 September 2001)

Overview
The purpose of the Nested Grid Model (NGM), also called the Regional (RGL), network run is to provide the best possible numerical analysis and forecasts for the U.S. area. The NGM uses the Eta analysis and AVN lateral boundary conditions in a one-way nested reduced domain configuration to generate a 48 hour forecast. NGM initial conditions are produced from the Eta analyses. The NGM forecast model files are used to produce the Model Output Statistics (MOS) forecasts. MOS processing takes forecast parameters directly from the NGM model and uses them as predictor variables in previously derived regression equations. The results are an assortment of weather parameters at station locations, not directly forecastable by any dynamical prediction model, such as probability of precipitation, maximum and minimum temperatures, indicators of severe weather, etc.

Job Names

ngmibm00	300_00 thru 399_00, ngm_gempak_00, ngm_gempak_meta_00, ngm_gempak_gif_00, tdlngm_gempak_00, tdlngm_gempak_meta_00, ngm_dbnalert_00
ngmibm12	300_12 thru 399_12, ngm_gempak_12, ngm_gempak_meta_12, ngm_gempak_gif_12, tdlngm_gempak_12, tdlngm_gempak_meta_12, ngm_dbnalert_12

Purpose of Jobs in Suite

• Jobs 314_00/12 are run at 00Z and 12Z, respectively. These jobs dump additional ADPUPA observational data at 0215Z and 1415Z for ingesting into the NGM forecast model run at 00Z and 12Z, respectively. Air Pollution and stagnation, observed freezing level, average relative humidity, lifted index, and precipital water AWIPS and FAX charts are produced by these jobs.



• Jobs 320_00/12 are run at 00Z and 12Z, respectively. These jobs remove the previous days NGM forecast model files from a temporary work area.



• Jobs 330_00/12 are run at 00Z and 12Z, respectively. These jobs process the initial and lateral boundary conditions for the 48 hour NGM model forcast and process the first guess accordingly.



• Jobs 340_00/12 are run at 00Z and 12Z, respectively. These jobs create the 00 through 48 hour NGM forecast GRIB index files.



• Jobs 342_00/12 are run at 00Z and 12Z, respectively. These jobs store current NGM observational data in a flat file, calculate pressure tendencies for 12 hour old data, generate the RGL 2-dot analysis chart, and generate the 250mb heights/isotachs chart.



• Jobs 352_00/12 are run at 00Z and 12Z, respectively. These jobs perform the following 00, 06, and 12 hour NGM forecast file post- processing: generate AWIP, AFOS and FAX charts and maps; generate 1:40M and 1:20M North American Maps; generate 30 Regional Analysis and Forecast (RAFs) bulletins containing the initial NGM model analyses and forecasts for points in the U.S., Canada, and over adjacent waters. The forecasts are provided for 6-hourly intervals; and compute a table containing the RAFs model terrain height and normal surface pressure at the RAFs station locations.



• Jobs 354_00/12 are run at 00Z and 12Z, respectively. These jobs perform the following 18 and 24 hour NGM forecast file post-processing: generate AWIP, AFOS and FAX charts and maps; generate 1:40M and 1:20M North American Maps; generate AFOS moisture convergence charts; converts AFOS maps into AWIPs redbook format; creates AFOS charts of RGL boundary layer winds; and creates CGRID FAX charts.



• Jobs 356_00/12 are run at 00Z and 12Z, respectively. These jobs perform the following 30 and 36 hour NGM forecast file post-processing: generate AWIP, AFOS and FAX charts and maps and generate 1:40M and 1:20M North American Maps.



• Jobs 358_00/12 are run at 00Z and 12Z, respectively. These jobs perform the following 42 and 48 hour NGM forecast file post-processing: generate AWIP, AFOS and FAX charts and maps; generate 1:40M and 1:20M North American Maps; creates CGRID FAX charts; and creates RAFs bulletins.



• Jobs 359_00/12 are run at 00Z and 12Z, respectively. These jobs perform the following 12, 24, 36 and 48 hour NGM forecast file post- processing: generate precipitation lists; create boundary layer wind charts; generates RAFs FAX charts; and generate 12, 18, 24, 30, 36 and 48 hour boundary layer wind charts; and generate NGM BUFR soundings breakout files.



• Jobs 380_00/12 are run at 00Z and 12Z, respectively. These jobs generate the 48 hour Model Output Statistics (MOS) forecasts; and the following bulletins: FOUS14; FXXX01 Air Force; MOS Alaska FOAK25 thru FOAK29; FOAK14 Alaska; FXXX34 Alaska Air Force; FOUS33 MAX/MIN for Western Region; HPC's TAP for Ceiling/Visibility (CIG/VIS) forecasts; NGM MOS BUFR messages for stations in the Main U.S.; NGM MOS BUFR messages for stations in Alaska; and River Forecast Center (RFC) maximum minimum FOUS12 messages. In addition, the FOUS14 bulletins are formatted for internal archiving; the AFOS-era verification bulletins, which are transmitted from the WSFO's via AFOS, are archived; and a subset of NGM forecasts of wind, pressure, temperature and precipitation fields for use as input for local AWIPS MOS processing is generated.



• Jobs 381_00/12 are run at 00Z and 12Z, respectively. These jobs dump additional ADPUPA observational data; generate the NGM three-dimensional trajectory forecast; convert trajectory charts to Redbook graphics; append Clear Air Turbulence Forecasts to NGM MOS GRIB files; append Convective Outlook data to the NGM MOS GRIB file, which now contains Clear Air Turbulence Forecasts; format FOUS50-57 bulletins for archiving; generate a 4-panel chart; and create 4 MOS probability, thunderstorm/severe weather depiction AFOS, FAX, and Redbook graphics chart for AWIPS; and generate Alaska seasonal (valid May 15th thru Sept 15th) GRIB fields for AWIPS.



• Jobs 382_00/12 are run at 00Z and 12Z, respectively. These jobs generate the following NGM MOS guidance bulletins: FOXX40, ECOAST (FQUS12), AGUS40TX, Great Lakes FQUS22 (wind/wave), and Geat Lakes FQUS20 (storm surge).



• Jobs 385_00/12 are run at 00Z and 12Z, respectively. These jobs generate the following NGM MOS guidance: probability of precipitation; AFOS solar forecasts (00Z only); temperature and dewpoint depression forecast; AFOS max/min temperatures charts; AFOS max/min charts with freezing contours; and converts AFOS maps to AWIPS redbook format; and generate 12, 18, 24 and 30-hour 4-panel wind/cloud FAX charts.



• Jobs ngm_gempak_00/12 are run at 00Z and 12Z, respectively. These jobs convert NGM forecast GRIB files into GEMPAK grids.



• Jobs ngm_gempak_meta_00/12 are run at 00Z and 12Z, respectively. These jobs generate NGM GEMPAK META files for NAWIPS.



• Jobs ngm_gempak_gif_00/12 are run at 00Z and 12Z, respectively. These jobs generate NGM GIF images for display on the internet.



• Jobs tdlngm_gempak_00/12 are run at 00Z and 12Z, respectively. These jobs convert NGM MOS forecast GRIB files into GEMPAK grids.



• Jobs tdlngm_gempak_meta_00/12 are run at 00Z and 12Z, respectively. These jobs generate NGM MOS GEMPAK META files for NAWIPS.



• Jobs ngm_dbnalert_00/12 are run "on demand" at 00Z and 12Z, respectively. These jobs will resend/repost ALL NGM products and should only be submitted to run when there has been a communication or network problem between OSO and our Bowie Computer site during the time that the NGMIBM00/12 network ran.