After a couple weeks of mild fall weather for most of the country, things will change with a potent system that arrives Thursday into Friday.
A low pressure system will move out of the Rockies tonight, ahead of a deepening upper level trough in the jet stream. Because of the strengthening low pressure, cold air will be forced south and snow will spread across the Rockies with heavy snow possible. By Thursday the system will then move into the Plains again bringing widespread heavy snow possible, coating the upper Plains late Thursday and upper Midwest region Friday. Between half to a foot of snow is possible in a few locations, and because the system is strengthening winds will be very strong. With high wind gusts, blizzard conditions are possible in eastern South Dakota and western Minnesota going into Friday.
In the warm sector of the system which includes the Stateline area, we will draw in strong southerly winds on Thursday that will bring highs for the day to 70° which is a good 20° above average. Other locations will have high temperatures 20-30° above average. It will be a very windy day for the area on Thursday with southerly winds at 10-20mph and gusting as high as 30mph. Ahead of the cold front, scattered showers and even a few rumbles of thunder will be possible for us Friday afternoon. Quite a dynamic system!
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