A clipper-like system brought moderate to heavy snowfall to north central Pennsylvania. The snow started early in the morning and tapered off in the evening.
Every event with a place to put it; 14 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.
A clipper-like system brought moderate to heavy snowfall to north central Pennsylvania. The snow started early in the morning and tapered off in the evening. Snow accumulations generally ranged from four to eight inches followed by a brief wintry mixture of sleet, freezing rain and freezing drizzle which resulted in a light glazing of ice.
Further south across the Laurel Highlands, warmer air caused snow and sleet to change to freezing rain for most of the event. This resulted in a significant ice accumulation of one quarter inch.
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 Jan 9, 4:05 PM EST, 9 hours 55 minutes earlier.
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</html>The national radar mosaic for the moment the first event began.
14 winter storm. Local standard time, as filed.
Periods of freezing rain resulted in ice accumulation of one quarter inch across Cambria County.
Periods of freezing rain resulted in ice accumulation of one quarter inch across Somerset County.
Periods of freezing rain resulted in ice accumulation of one quarter inch across Bedford County.
Five to seven inches of snow was reported across Warren County.
Five to seven inches of snow was reported across Elk County.
Six to eight inches of snow was reported across Clearfield County.
Five to seven inches of snow was reported across McKean County.
Five to seven inches of snow was reported across Cameron County.
Six to eight inches of snow was reported across Potter County.
Five to seven inches of snow was reported across Northern Clinton County.
Five to seven inches of snow was reported across Northern Centre County.
Five to seven inches of snow was reported across Tioga County.
Five to seven inches of snow was reported across Northern Lycoming County.
Six to eight inches of snow was reported across Sullivan County.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Pennsylvania in 2009Every state in 2009This day in weather historyWarnings in Pennsylvania, January 2009
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: 140556, 140557, 140558, 140544, 140546, 140548, 140545, 140547, 140549, 140550, 140551, 140553, 140554, 140555.