Fall 2007 has been one of the Midwest's mildest and driest in years, but an ill-timed onslaught of snow and cold may disrupt the busy Thanksgiving travel period. The week will start out mild, with readings well above normal, though rain will develop ahead of an approaching storm system.
Colder air will make a move into the region beginning Tuesday night as low pressure makes a northeast run up the Ohio Valley. Though the exact track and intensity of this storm are still in doubt, the potential for accumulating snow exists across a wide swath of the Midwest.
Locally, rain should change to wet snow Wednesday night, then diminish to flurries on Thanksgiving. Though initially the snow here should melt because of warm pavements and warmth from 48-degree Lake Michigan waters, enough may eventually accumulate -- especially north and west of the city -- to bring the area its 12th White Thanksgiving since 1884, and the first since 2004.
--By Steve Kahn, WGN-TV Weather Center Meteorologist
WGN-TV Chief Meteorologist Tom Skilling and the WGN Weather Center staff provide daily coverage of weather in the Chicago area.
