News

NWS revises how winter weather advisories are issued

Written by Tim Lambert and Radio Pennsylvania | Dec 20, 2015 6:26 AM
snow.jpg

Photo by Tim Lambert/WITF

(State College) -- The National Weather Service has changed how it issues winter weather warnings and advisories for the midstate.

The threshold for a winter weather advisory has been lowered from three inches of snow to two inches in Adams, Cumberland, Dauphin, Franklin, Lancaster, Lebanon, Perry and York counties.

Shane Kearns, a meteoroligist with the National Weather Service in State College, says the minimum negative temperature to put out a wind chill advisory has been raised in the Harrisburg, York and Lancaster areas.

"I think that's also done because it's a population center and has more impact on the people there," he says. "I guess (the midstate counties) are not as exposed to extreme colds as some of the northern counties in the mountains."

The threshold for the NWS to issue a winter storm warning has been lowered by an inch of snow in those three cities, as well, from six inches of snow to five inches for events lasting up to 12 hours and from eight inches to seven inches for storms up to 24 hours.

Kearns says the move aims to raise public awarenenss when snow is headed toward the region.

"Harrisburg is more representative of our zones south and east of there. It's a big population hub, so it has more adverse effects from winter weather," Kearns says.

The criteria to call a winter storm warning in the eight southcentral Pennsylvania counties listed above has been reduced from a forecasted six inches of snow to five inches for events lasting up to 12 hours and from eight inches to seven inches for storms of up to 24 hours.

Published in News

Tagged under , , , , , , ,

back to top

Post a comment

Give Now

Estate Planning

Support for WITF is provided by:

Become a WITF sponsor today »

Smart Talk

National Edward R. Murrow Awards

DuPont Columbia Awards

Support Local Journalism

Latest News from NPR

Support for WITF is provided by:

Become a WITF sponsor today »