A developing spring storm, on a track to reach the Midwest Sunday, brought both heavy snow and twisters to Colorado Saturday. While Boulder residents were digging out from an 8"+ snowfall, several twisters were sighted less than 200 miles to the northeast near the Nebraska border.
Southerly winds ahead of the strengthening storm will send early-season warmth into the Midwest and also tap ample moisture. Severe storms are possible throughout northern Illinois Sunday, but Wisconsin appears to face the brunt of the severe weather threat. With many area streams and creeks already near or above flood stage, flooding potential here remains high.
Chicago area temps should reach the 70s both Sunday and Monday and above normal readings should continue the entire week, though a major cool-down looms as March prepares to exit next weekend.
--By Steve Kahn, WGN Weather Center Meteorologist
WGN-TV Chief Meteorologist Tom Skilling and the WGN Weather Center staff provide daily coverage of weather in the Chicago area.
