Blinding snow squalls lead to major pileup on Interstate 81 in Pennsylvania

WEATHER NEWS: Blinding snow squalls lead to major pileup on Interstate 81 in Pennsylvania

The stretch of I-81 reopened early Wednesday, the report said.

Photos from Monday show a mangled heap of cars burning as first responders struggle to reach the scene.

John Fetterman, lieutenant governor of Pennsylvania, tweeted, “Gisele and I express our *deepest* condolences over this morning’s horrific crash on Interstate 81 in Schuylkill County and gratitude to the first responders on the scene.”

The crash was first reported near Minersville shortly after 10:30 a.m. Monday. That’s exit 116 on I-81. Schuylkill County is about 30 miles west of Allentown, Pa., and about 85 miles west of New York. It’s roughly midway between Harrisburg and Scranton.

More than 50 vehicles were involved in a traffic pileup on Interstate 81 in Schuylkill County, Pa., on March 28, killing at least three. (Video: Storyful, Photo: Storyful)

The National Weather Service in State College, Pa., did not appear to issue a snow squall warning ahead of the accident as that particular squall was difficult to detect on radar. As additional snow squalls swept across the state, the State College Weather Service office issued 15 warnings, mostly Monday afternoon.

Several snow squall warnings were also issued in Maryland and New Jersey.

The snow squalls formed as unseasonably cold air from the northwest spread over the interior Mid-Atlantic and Northeast. Such squalls often feature sudden gusty winds, heavy snow and reduced visibility.

Studies show that it takes the average driver half to three-quarters of a second to recognize a threat and apply the brakes. A vehicle traveling at 60 mph would have moved 44 to 66 feet during that time. Then comes the stopping distance, which can be several hundred feet.

Snow squalls have triggered deadly pileups before. Forty people were injured and three killed during a pileup caused by a snow squall on Interstate 75 in Detroit in 2013, reported. A similar chain-reaction crash occurred on Interstate 93 in New Hampshire in 2015, according to a Boston CBS affiliate. In February 2021, six people died in a 133-vehicle crash triggered by freezing drizzle near Dallas, CBS DFW reported.

Snow squalls are so dangerous that in 2017 the National Weather Service debuted a “snow squall warning” that would target drivers who might approach a snow squall. In the past, “special weather statements,” similar to blanket bulletins, were disseminated to advise travelers about the hazard, but the alerts didn’t reach people as directly as a tailored warning. A 2018 paper by several National Weather Service employees found that the statements did not “command the same level of urgency or breadth of dissemination as a warning.”

The 2018 paper also noted “snow squalls were the second leading cause of weather related fatalities across Pennsylvania over a ten year period ending in 2008, behind only flood related deaths.”

The warnings for snow squalls were introduced because they can generate “sudden whiteout conditions and slick roadways” that may “lead to high speed accidents with large pileups that result in injuries and fatalities,” the Weather Service wrote. “This new warning aims to bring better situational awareness to drivers and mitigate impacts related to these squalls.”

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