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Meteorological Development Laboratory
 
 

History of Gridded MOS Products


DATE GRID DETAILS SOFTWARE VERSION
March 13, 2012
2.5km CONUS
  • Traditional 6- and 12-hr Probability of Precipitation (PoP) and 6- and 12-hr Quantitative Precipitation Forecast (QPF) have been replaced with an experimental High Resolution MOS POP/QPF.
  • version 9
    February 27, 2012
    2.5km CONUS
  • Initial implementation of 2.5 km GFS-based Gridded MOS for CONUS
  • Elements: max/min temperature, 2m temperature, 2m dewpoint, relative humidity, wind speed and direction, wind gust, opaque sky cover, 6- and 12-h probability of precipitation, 6- and 12-hr quantitative precipitation forecast (QPF), 24-hr snowfall amount, and 3-, 6-, and 12-hr probability of thunderstorms.
  • version 9
    November 9, 2010
    2.5km Hawaii
  • Initial implementation of GFS-based Gridded MOS for Hawaii
  • Elements: max/min temperature, 2m temperature, 2m dewpoint, relative humidity, wind speed and direction, and 6- and 12-h probability of precipitation
  • version 9
    March 30, 2010
    3km Alaska
  • Added two (2) extra projections for 24-hr Snowfall Amount out to 156-h for both 0000 and 1200 UTC cycles.
  • version 9
    March 30, 2010
    5km CONUS
  • Added extended-range 24-hr Snowfall Amount out to 156-h for 1200 UTC cycle.
  • Added two (2) extra projections for 24-hr Snowfall Amount out to 156-h for 0000 UTC cycle.
  • Modified output mask for all elements except 24-hr Snowfall Amount.
  • version 5
    January 12, 2010
    3km Alaska
  • Implemented a new version (9) of the analysis code for Alaska.
  • Added 6- and 12-hr Quantitative Precipitation Forecast (QPF) and 24-hr Snowfall Amount guidance.
  • version 9
    December 16, 2008
    3km Alaska
  • Implemented new version (8) of analysis code for Alaska and modified some analysis parameters in temp, dew, max/min analysis.
  • Added 6- and 12-hr POP, wind speed, direction and gusts, and sky cover guidance.
  • Expanded coverage of grid on the Eastern edge.
  • version 8
    December 16, 2008
    5km CONUS
  • Removed unrepresentative stations from dewpoint analysis per WFO request.
  • version 5
    August 12, 2008
    5km CONUS
  • Turned off cycle averaging of station data in wind grids.
  • version 5
    June 10, 2008
    3km Alaska
  • Implement new GFS-based gridded MOS for Alaska.
  • Initial elements available are temperature, dewpoint temperature, maximum/minimum temperature, relative humidity, and 3-, 6-, and 12-hr probability of thunderstorms.
  • version 6a
    December 18, 2007
    5km CONUS
  • Implement new land/water mask.
  • Modify precipitation amount analysis scheme.
  • Removal of stations at users' request.
  • version 5
    June 5, 2007
    5km CONUS
  • New version of analysis code with many modifications to analysis settings including using cycle averaging for all elements.
  • Added new elements opaque sky cover, 24-hr snowfall amount, wind gusts, and 6- and 12-h precipitation amounts.
  • version 5
    December 19, 2006
    5km CONUS
  • Corrected lapse rate computational algorithm.
  • Removed bad stations at request of users.
  • Modified Boston in land/water mask.
  • version 4
    October 10, 2006
    5km CONUS
  • Corrected wind post-processing problem that was setting some north winds to calm.
  • Made slight modifications to analysis settings for temp, winds and POPs (modified R, less elevation correction).
  • version 4
    August 15, 2006
    5km CONUS
  • Official implementation of GFS-based gridded MOS for CONUS.
  • GRIB2 files provided on SBN/NOAAPORT and in NDGD operational area.
  • Elements include max/min temperature, 2m temperature, 2m dewpoint, relative humidity, wind speed and direction, 3-, 6-, and 12-h probability of thunderstorms, and 6- and 12-h probability of precipitation.
  • Cycle averaging used for dewpoint, temperature, max and min for the first time.
  • version 4
    End of experimental phase
    July 5, 2006
    5km CONUS
    Expanded coverage of experimental guidance to full CONUS
    version 3
    March 2005 -June 2006
    5km Western Tile
    Initial development and testing was done for a 5km "Western Tile" subset of the CONUS grid. We initially worked on temperature, dewpoint, max and min, with wind speed and direction, POP, and probability of thunderstorms added over time. During this period we provided sample GRIB2 files both manually and eventually in the experimental area of the NDGD. These GRIB2 files had the full 5km CONUS grid, but we only provided forecast values for the Western Tile.
    version 3 - 2/2006
    version 2 - 9/2005
    version 1 - 3/2005


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    Last Updated: Wednesday, 14 March 2012 18:38 UTC