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Upcoming Mesoscale Branch Implementations


If the link is active, click on model to see more information on recent or upcoming implementations.
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Model

What

When

Rapid Refresh/HRRR Expand RAP domain to match NAM domain to assist with future ensemble efforts; extensions of forecasts with RAP running to at least hour 21 and HRRR to at least hour 18; model changes to address warm/dry biases; introduction of hybrid data assimilation to HRRR Spring 2016
RTMA/URMA system Add URMA for Hawaii and Puerto Rico; add a cloud ceiling analysis for CONUS RTMA and URMA; analyse wind speed directly as a scalar; use a consensus surface terrain which will eventually be used across AWIPS Spring 2016
North American Mesoscale (NAM) System Initial implementation of NAM Rapid Refresh (NAMRR); Alaska/CONUS nests move to 3 km resolution; analysis/physics upgrades. NAMRR will consist of hourly cycle of the 12-km parent, 3 km CONUS and Alaska nest, and 18-h forecasts of 12-km parent + 3 km CONUS + 3 km Alaska nest every hour Fall 2016