PITTSBURGH - A strong winter storm is moving across the country and will affect western Pennsylvania this weekend.
A Winter Storm Warning has been issued for the entire area. It will be in effect from 10 a.m. Saturday until 10 a.m. Sunday.
Gov. Tom Wolf has also declared a state of emergency ahead of this weekend's winter storm.
We'll have the latest timing of the weekend storm on Channel 11 News, starting at 5 p.m.
Expect heavy snow on the order of 1 inch plus per hour in spots. The model data is coming together and there is high confidence that the heaviest snow will fall across our northern counties. Places like Butler, New Castle and Kittanning have the threat of 8 to 12 inches of snow through early Sunday morning with the precipitation most likely remaining all snow during the event.
South of Pittsburgh, a wintry mix will keep snow totals down a bit. Expect a chance of rain, freezing rain and snow in places like Waynesburg and parts of Washington and Fayette Counties. As of Friday, the early forecast calls for ice accumulation of up to 0.10 inches. Minor snow accumulations of a dusting to 3 inches are possible across Greene County.
The snow will begin mid-to-late Saturday morning across our western counties with increasing chances for snow in Pittsburgh through the early afternoon. Expect that the rain/snow/freezing rain mix line may make it as far north as Pittsburgh or southern Allegheny County during a short period Saturday evening which could lead to light icing. Pittsburgh looks to see anywhere from 5 to 8 inches of snow with higher amounts north of the city.
Power issues will be a problem this weekend as the snow will be heavy and wet through Saturday evening. Trees and power lines could come down under the weight of the heavy snow.
Much colder air rushes in very early Sunday dropping temperatures into the teens during the day. This will make it very difficult for crews to treat the roads. A 'flash freeze' may occur where any moisture on the roads quickly refreezes as arctic air builds in.
Gusty winds will blow snow back over many area roads Sunday and Sunday night.
Stay with Severe Weather Team 11 as we continue to track this system.
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