Pittsburgh, PA – Drivers across western Pennsylvania are being urged to use extreme caution today as a snow squall warning remains in effect through 1:15 p.m. EST Monday, bringing the risk of sudden whiteout conditions and dangerous travel on major highways.
According to the National Weather Service in Pittsburgh, the warning covers portions of Interstate 80 near Grove City, Interstate 376, and U.S. Routes 224 and 422 near New Castle, impacting parts of Mercer and Lawrence counties and surrounding areas north of the Pittsburgh metro.
Snow squalls are brief but intense bursts of heavy snow combined with gusty winds. Forecasters warn that visibility can drop to near zero within seconds, making it difficult for drivers to react in time. These conditions can lead to chain-reaction crashes, especially on high-speed roadways.
The NWS says the primary hazard is whiteout conditions in heavy blowing snow, with dangerous, potentially life-threatening travel possible during the strongest squalls. Roughly 100,000 residents live within the warned area, and heavily traveled corridors like I-79, I-80, and I-376 could see sudden slowdowns or temporary shutdowns.
Motorists already on the road are advised to slow down immediately if they encounter heavy snow, turn on headlights, and avoid sudden braking. If possible, delaying travel until the squall passes is strongly recommended, as conditions can improve just as quickly as they deteriorate.
PennDOT crews are monitoring road conditions, but officials stress that snow squalls can overwhelm treated roadways in minutes.
This article was produced by a journalist and may include AI-assisted input. All content is reviewed for accuracy and fairness.
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