The National Blend of Models (NBM) is a nationally consistent and skillful suite of calibrated forecast guidance based on a blend of both NWS and non-NWS numerical weather prediction model data and post-processed model guidance.

The first version of the NBM will be released in January 2016 and will contain guidance for 10 National Digital Forecast Database (NDFD) elements over the conterminous United States based on a blend of global models and post-processed guidance. Future releases will expand the NBM to Alaska, Hawaii and Puerto Rico, add more NDFD forecast elements and incorporate mesoscale forecast models in the short term.


Training and Information Resources

For more information on the National Blend of Models, please see the following training resources and publications. 

Training Modules

Reference Presentations