The National Weather Service in Pittsburgh warns drivers to be extra cautious tonight as snowfall is likely to increase in the upper elevations of Westmoreland, Fayette, and Indiana counties. Total snow accumulations of 2–5 inches are anticipated, prompting a winter weather advisory from 6 p.m. Friday to 6 a.m. Saturday for the eastern boundaries of the three counties.
As cooler air is arriving from the northwest, there is a chance of wind gusts of up to 40 miles per hour. According to meteorologist Jared Rackley, the lower-elevation areas of the counties and all of Allegheny County may see a dusting of snow, but not much will accumulate.
Remnant moisture from the passing low pressure system (which is currently center in Forest County) and lake enhanced moisture encased in cooler air aloft will change precipitation south of I-80 into snow showers. Accumulation will likely be confided to the ridges overnight. pic.twitter.com/5i0dcMhZlR
— NWS Pittsburgh (@NWSPittsburgh) March 10, 2023
“Definitely, we’ll see some snow falling, but the ground is kind of warm,” Rackley said. “It is not going to accumulate that quickly at all.”
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Especially in the higher-elevation locations covered by the advisory, he said, drivers might have to contend with slippery roads throughout the night. “It is not a substantial amount of snow, but enough that it might make travel difficult,” he said.
A Winter Weather Advisory has been issued for the higher terrain south and east of Pittsburgh for tonight through 6am Saturday, where 2-5" of snow may fall after a cold front passes.
Find more details for your location here: https://t.co/cxojC57G75 pic.twitter.com/sZV8DvqSXZ
— NWS Pittsburgh (@NWSPittsburgh) March 10, 2023
It is expected to be a chilly start to Saturday morning, with temperatures hovering around the freezing mark before rising into the mid-to upper-30s by afternoon.
“Some of those highest ridge towns might remain at or right below freezing through the day, but we are in March now, so the sun has some power to melt anything that is on the ground,” Rackley said.
“There could be some lingering light snow showers in the early morning after dawn, but it should be tapering off pretty quickly after that.”
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