Black ice conditions will occur on untreated walkways, sidewalks, parking lots and roadways Tuesday night and overnight into Wednesday morning, the weather service said.
Both motorists and pedestrian should use extra caution if out this evening or overnight.
Wednesday will be mostly sunny with a high in the mid to upper 30s. Clouds will arrive overnight into Thursday, but it will be the warmest day in nearly a month with the high temperature in the upper 40s.
Rain and widespread fog are forecast for Friday, with even warmer temps and a high in the low 50s.
Rain and mild temperatures may result in ice jam flooding along a few streams and rivers Friday into Saturday.
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