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National Digital Forecast Database Information


Status of NDFD Elements as of
September 8, 2008

Access Data






General Information

NDFD-Related Product Description Documents (PDDs) and Service Description Documents (SDDs)

NOTE: All experimental NDFD elements and services and some operational elements and services are described in PDDs.  All operational NDFD elements are described in NWS Policy documents. Links to appropriate policy documents will be added in the future.

Operational NDFD Products and Services

Experimental NDFD Products and Services

NWS National Catalogue of New or Enhanced Products

Elements (and applicable domains) described in both the NDFD Gridded Data and the NDFD Graphic Forecast Displays PDDs:

  • Quantitative Precipitation Forecasts–for conterminous U.S. (CONUS) and Puerto Rico/Virgin Islands (PR/VI) only
  • Sky Cover–for CONUS, PR/VI. Hawaii , and Guam
  • Snow Amount–for CONUS and Hawaii only

NDFD Elements Available for Alaska (described in the NDFD Alaska Experimental Elements PDD):

  • Maximum Temperature
  • Minimum Temperature
  • 12-hour Probability of Precipitation
  • Wind Direction
  • Wind Speed
  • Significant Wave Height
` June 9, 2008