A Wind Advisory has been issued for northern Illinois and southern Wisconsin through the afternoon and evening. Strong southerly winds this morning will shift around to the northwest with the passage of a secondary cold front by this afternoon. Once they do the wind speeds should come down some, but still range around 25 mph. Right now sustained winds are 20 to 30 mph with gusts topping 35 mph and even 40 mph in some spots.
So why so much wind? The low that was responsible for the severe weather outbreak in the Plains Saturday and all our rain over the weekend is lifting through northeast Wisconsin. There are significant height rises right behind this low with high pressure building in central Canada. The change in pressure over a short distance is causing our winds to become rather gusty, but once that low moves away the wind speeds should relax some going into the overnight.
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