The NAM 72-hour forecasts this morning predict a very cold cyclone to be situated just east of Hudson Bay by 12 UTC on Thursday morning (February 9, 2012). The forecast at 500 mb (above) shows central heights well below 5000 m, which is quite impressive. At 850 mb (below) the cold core temperature is forecast at -42C; again quite impressive. So, it appears that northeastern North America is going to be hit by very cold temperatures, even as the extreme cold continues over Europe.
The comparatively weak closed low along the cast of Baja threatens to bring some clouds and perhaps sprinkles to southeastern Arizona in the same time frame.
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