South Central Illinois Under Winter Storm Watch From Noon to Midnight on ThursdayAll of South Central Illinois remains under a winter storm watch from noon until midnight on Thursday. The St. Louis Metropolitan area is under a winter storm warning.
The National Weather Service says South Central Illinois can expect a chance of snow, possibly mixed with freezing rain and sleet Thursday morning and then freezing rain and sleet Thursday afternoon. Snow and sleet accumulation of just under a half inch is expected. A light glazing is expected on the roadways. High temperatures on Thursday are expected to be in the lower 30's, so a degree or two shift either direction could make a major difference on the amount of precipitation we receive.
Freezing rain and snow is expected to continue into the evening hours, with a chance of freezing drizzle after midnight. Some ice accumulation is possible Thursday night and early Friday morning. Temperatures are expected to remain steady around 30 degrees.
Winds could provide some concern with icing, with east winds of 10 to 20 miles per hour during the day on Thursday and east winds at 15 to 20 miles per hour expected Thursday night.
Chance of measurable precipitation is near 100 percent on Thursday and Thursday night. The freezing precipitation should not last long, with temperatures expected to be around 40 by Friday afternoon.
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