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Another Snowstorm?

It is raining this evening as wave aloft moves by. A cold front will move through Thursday morning. This storm is really going to be maturing over the northern plains and Great Lakes states where snow should be wide spread.

This storm will spin and weaken later this week. Then we have to watch a possible series of upper level systems that will try to carve out a trough just west of Kansas City. It has a similar look to our big snowstorm, but we will have to see if it really shows up during the next few days on the models. Cold air will be in place. Initially this is not as cold as last week, but a United States born Arctic airmass may develop just as a few days ago. Usually Arctic airmasses build over northern Canada and we have days to anticipate them. This is why we call it an Arctic blast, because it surges down and replaces a warmer airmass. But, last week the cold air built over the northern states and southern Canada as a surface high strengthened just north of Kansas City. This same thing could happen early next week, although the new data has a northern Canadian and North Pole Arctic airmass building. So, perhaps a true Arctic blast will occur by Monday. But, will we have snow?

Gary

Posted by at December 13, 2005 7:53 PM

Comments

Posted by: kinley at December 13, 2005 11:10 PM