An arctic airmass combined with gusty winds resulted in frigid temperatures and extremely dangerous wind chills across far north-central Pennsylvania.
Every event with a place to put it; 5 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS CTP wrote it up.
An arctic airmass combined with gusty winds resulted in frigid temperatures and extremely dangerous wind chills across far north-central Pennsylvania.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS State College, PA wrote its last area forecast discussion before the first event at Feb 12, 6:53 PM EST, 7 minutes earlier.
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</html>The national radar mosaic for the moment the first event began.
5 extreme cold/wind chill. Local standard time, as filed.
Extreme cold combined with gusty winds resulted in wind chill or apparent temperature values in the -25 to -35 range.
Extreme cold combined with gusty winds resulted in wind chill or apparent temperature values in the -25 to -35 range.
Extreme cold combined with gusty winds resulted in wind chill or apparent temperature values in the -25 to -35 range.
Extreme cold combined with gusty winds resulted in wind chill or apparent temperature values in the -25 to -35 range.
Extreme cold combined with gusty winds resulted in wind chill or apparent temperature values in the -25 to -35 range.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Pennsylvania in 2015Every state in 2015This day in weather historyWarnings in Pennsylvania, February 2015
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-30. Each event’s entry at NCEI: 562248, 562249, 562250, 562251, 562252.