Heavy lake effect snow fell across parts of northwestern Pennsylvania last night. Some communities in Erie County reported over a foot of snow. The snow has tapered off a bit this morning as the winds have shifted from west to northwest across the area.
Occasional lake effect snow showers and squalls are likely across the area today with additional significant accumulation possible. High temperatures will only rise to around 10 degrees. Wind chills will be well below zero.
Tonight, the winds will shift back to the west with additional heavy lake effect snow possible. It will be cold with overnight lows falling to around 5 degrees.
The lake effect snow showers and squalls will continue Wednesday. A weak disturbance will track by to our north, causing the winds across the area to shift to the southwest. This will cause the heavier snow bands to move north toward the lake shore areas. Once this system passes Wednesday evening, winds will shift to the northwest sending lake effect snow showers back across much of the area. Highs on Wednesday will be around 15 degrees with lows Wednesday night falling back to around 10.
Snow showers will persist into Thursday morning, but as high pressure builds across the region, the snow showers will begin to taper off. We should see a period of dry weather Thursday afternoon. Highs on Thursday will reach the upper teens to around 20 degrees.
A storm system will move into the Ohio Valley Thursday night, causing snow the spread back across the area. Widespread accumulating snow is possible across northwestern Pennsylvania on Friday as the storm passes by to our south. It will remain cold through the end of the week.