The UWM realtime system (based on the
non-hydrostatic version of the PSU-NCAR model version 5 or
MM5) runs once daily (0000
UTC initial time) out to 48 hours on 3 domains:
domain1 covers North America and adjacent waters at 54 km grid spacing, domain2 covers most of the Great Lakes at 18 km grid spacing, and domain3 is centered on Lake Michigan and surrounding states at 6 km spacing.
The model uses the 0000 UTC AVN model run from NCEP to provide
initial conditions (cold start) and lateral boundary conditions throughout
the integration. The model is run on a 4 CPU
SGI Origin 200. Model physics include the Kain-Fritsch convective
parameterizations at 54 and 18 km, simple ice cloud and
precipitation processes and the MRF planetary
boundary layer coupled with a multi-layer soil model. The realtime system is made possible by grants from the National Science Foundation (NSF) and the Cooperative Program for Meteorology, Education and Training (COMET).