A persistent upper-level trough remains anchor over the Great Lakes region. Northern Minnesota will remain in a NWerly flow for the next few days. The upper-level dynamics appear to be moving out of the region. With the NWerly flow the dominant pattern for the good part of this week, most of the sensible weather will track south of KMSP. A bitterly cold, Arctic air mass from central Canada is ready plunge south once again. This 1042 hPa surface high is progged to usher over the Dakotas by Wednesday night. The anticyclone as of 18Z Feb 2007 is located over northern Alberta province. Surfacetemperature this morning over The Pas (northwest of KINL in Canada) was -26.9 C (-16.42 F). According to the US Air force data there is a 10-20 cm of snow cover over KINL, so be careful of the radiational effect associated with snow (i.e. Albedo).
US Air Force Snow Depth Anaylsis
If the GFS verifies, the best chance of any precip will occur Thursday night into Friday morning as an Alberta Clipper moves over the CWA.
~ Doc Ng
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