(State College) -- Most of the midstate remains under a wind chill advisory or wind chill warning this afternoon.
The National Weather Service issues wind chill advisories when the readings fall in the -10 to -25 degree range. Warnings reflect even more dangerous conditions in which wind chill values can be even colder than -25.
Aaron Tyburski, a meteorologist with the National Weather Service in State College, says the conditions are ripe for frostbite.
"With the wind speed, what it does is it more efficiently moves any little heat that's near your skin away from your body," he says, "as well as the moisture in your skin, it allows that to evaporate, and it's doing a very efficient job of doing that."
A record low temperature of zero was recorded at Harrisburg International Airport this morning, but Tyburski says it felt like -20 degrees with the wind chill.
He notes the Johnstown area in Cambria County recorded wind chills colder than -40 this morning.
Most midstate counties are under a wind chill advisory until 7 o'clock this evening. Mifflin and Franklin counties are under at wind chill warning until 7 a.m. tomorrow.
However, the midstate's cold snap could end quickly. Tyburski forecasts temperatures near 50 this weekend.
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