The WRFv3.3.1 NMM PS:18.104.22.168.2.2.2 configuration is based on the North American Mesoscale (NAM) model physics suite and was evaluated by the Developmental Testbed Center (DTC) during the late fall of 2011. A Contiguous United States (CONUS) domain with approximately 15-km grid spacing was employed for this test covering complex terrain, plains and coastal regions spanning from the Gulf of Mexico, north to Central Canada in order to capture diverse regional effects for worldwide comparability. This configuration is a general application configuration for mid-latitude forecasts.
While this configuration used similar physics suite options to the operational NAM code between Dec 2009 - October 2011, this test was not set up and tested to be functionally similar to the operational NAM during that time. Please see the Configuration Description tab for specifics on how this particular test was set up and run.