A sprawling area of high pressure centered from Lake Superior to southwest Iowa will continue be the dominate weather feature in Stateline weather through Tuesday as it shifts slowly eastward across Illinois and Wisconsin through the Great Lakes, and then off the east coast by Wednesday morning. It is of Canadian origin, so dew points are low, and will allow for a big drop off in temperatures after sundown through the night. Temperatures by daybreak Monday morning will be cold enough (in the low to middle 30's) for some patchy light frost to form in most favored low lying areas. With full sunshine on Monday temperatures will recover very nicely, and reach the low to middle 60's by mid afternoon. As the high shifts a little further east on Tuesday afternoon temperatures will edge up a few more degrees, and there will be some high level cloudiness. On Wednesday a backdoor cool front will slip across the Illinois/Wisconsin Stateline from the north, but no rain is expected because of very dry air in place. That front will stall out, and become stationary across central or southern Illinois on Thursday. With a new weather system kicking out of the Rockies into the west central plains, clouds will increase, and there will be a slight chance of showers later Thursday into Thursday night. By Friday morning a warm front with an increasing southerly air flow from the Gulf of Mexico will begin moving northward across Illinois as a low pressure storm center intensifies over Nebraska. Moisture riding up and over the warm front to our south will begin to increase our chances of showers and thunderstorms on Friday. The warm front should reach the Stateline by early Saturday morning continuing our chances of showers an thunderstorms through Saturday night when a cold front from the west will push the activity eastward out of our area. It will be cooler on Sunday under partly cloudy skies.
by Meteorologist
Eric Nefstead
No comments:
Post a Comment