Thursday, January 12 2012

Summary:  Increasing snowfall and reduced visibilities have been occurring since the late morning, and this trend will continue through tonight.  A winter storm warning has been issued for northern Illinois, with 4 to 8 inches of total snow, high winds, low visibility and decreasing temperatures expected. 

Tonight:  Snowfall will continue throughout the night, with an additional 2 to 4 inches expected by morning.  Lows will be in the lower teens with winds out of the northwest at 10 to 20 MPH, gusting up to 35 at times. 

Friday:  Cloudy with a slight chance of some additional light snow, with blowing snow possible otherwise.  Highs will be in the upper teens with winds out of the west at 10 to 20 with gusts up to 30 possible in the morning.

Friday night:  Cloudy in the evening becoming mostly clear after midnight.  Lows will be in the low single digits with winds out of the west at 5 to 10 MPH.

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Your long-term forecast:  The start of next week will be another transitional period, as daytime highs will start off Sunday in the upper 20s, then increase to the mid to upper 30s on Monday before decreasing to around 30 for Tuesday.  Overnight lows will generally remain in the 20s early in the period, and there will be a chance for rain changing over to snow later in the period with lows decreasing to the low teens for Tuesday.

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