The Tribune Democrat, Johnstown, PA

Local News

July 14, 2014

Winter’s polar vortex returning this week

— Get ready for the return of the polar vortex.

Say what?

The calendar shows it’s July, but it won’t be feeling much like summer.

A dip in the jet stream is causing cold arctic air to reach into the central and eastern parts of the U.S. With it will come below normal temperatures that will linger throughout the weekend.

Paul Walker, a senior meteorologist with AccuWeather, said the polar vortex is always there. but it’s usually confined to a smaller area over the Arctic Ocean.

“This one is being spun farther south,” he said. “It’s unusual and it’ll be unseasonably cool, but it’s not unheard of.”

Temperatures Tuesday are expected to reach the mid 70s with showers, but it’s the nighttime low of 52 that will make it feel more like fall.

Highs Wednesday will only reach the upper 60s with nighttime temperatures once again falling to the low 50s.

“That’s more typical for the middle of September, not the middle of July, so it’s a shock,” Walker said.

By Thursday, Friday and into the weekend, conditions will start to improve and temperatures will rebound to the low and mid 70s.

“Next week we’ll start to see more typical weather in the upper 70s,” Walker said.

If there’s anything good to come out of this cool weather pattern it’s that there will be virtually no humidity.

“For as humid as it’s been it’ll be a nice break and refreshing; that’s the welcome part of this,” Walker said.

Kelly Urban is a reporter with The Tribune-Democrat. Follow her on Twitter @KellyUrban25.

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