Lifelife

Thu Jan 31, 2019, 10:34 PM

Long Johns To Short Sleeves: Rapid Thaw Follows Polar Blast

By TAMMY WEBBER and JEFF KAROUB
an hour ago

CHICAGO (AP) — In Illinois, temperatures could rise by 80 degrees within days. In Michigan, melting snow and rain and a 17-mile ice jam could lead to flooding. Across the Midwest, the sudden warmth was sure to bring more broken roads and busted water mains.

The polar vortex that brought many cities to a standstill was expected to end with a rapid thaw that experts say could be unprecedented. But the sudden swing from long johns to light jackets and short sleeves could create problems of its own.

“I don’t think there’s ever been a case where we’ve seen (such a big) shift in temperatures,” in the winter, said Jeff Masters, meteorology director of the Weather Underground firm. “Past record-cold waves have not dissipated this quickly. ... Here we are going right into spring-like temperatures.”

The dramatic warm-up will offer a respite from the bone-chilling cold that canceled school, closed businesses and halted trains. But potholes will appear on roads and bridges weakened by the freeze-thaw cycle. The same cycle can crack water mains and homeowners’ pipes. Scores of vehicles will be left with flat tires and bent rims.

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https://apnews.com/96fb8799f33c43338dc56ba51d77b3b8

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