Low pressure will strengthen across the Ohio Valley this evening and pass south of the area tonight. Northwestern Pennsylvania will be on the northern edge of this system with light snow possible overnight. Heavier snow will be possible south of I-80. Lows will be in the mid 20s tonight.
Accumulations across northwestern Pennsylvania will be light. Most of the accumulating snow should stay south of I-80 with heavy accumulations possible across the southwestern part of the state.
The storm will move to the Mid Atlantic coast on Wednesday taking most of the moisture and energy with it. Snow will exit Wednesday morning with just a few flurries expected during the afternoon. There could even be some patchy drizzle as well. Highs will reach the mid 30s.
A northerly flow of seasonably chilly air across the lake will keep conditions mainly cloudy Thursday and Friday with a few light snow showers or flurries possible. Highs both days will be in the mid 30s.
Milder temperatures and partly sunny skies can be expected over the upcoming weekend as high pressure builds across the state. Temperatures will moderate to the low to mid 40s on Saturday and the mid 40s on Sunday.
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