Surface low pressure stationed across northern Ontario and western Quebec allowed for a cold frontal passage during the evening hours of December 13, 2025 across central Pennsylvania. Snowfall along and ahead of the cold front with ample moisture in place allowed for a brief period of light to moderate snowfall across the Laurel Highlands into the early morning hours of December 14th.
Every event with a place to put it; 4 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.
Surface low pressure stationed across northern Ontario and western Quebec allowed for a cold frontal passage during the evening hours of December 13, 2025 across central Pennsylvania. Snowfall along and ahead of the cold front with ample moisture in place allowed for a brief period of light to moderate snowfall across the Laurel Highlands into the early morning hours of December 14th. After the cold frontal passage, enhanced westerly flow allowed for continued upslope snow showers across portions of Cambria and Somerset counties that brought additional accumulations into the evening hours of December 14th. Increased moisture off of the Chesapeake Bay allowed for an additional area of heavy snowfall to form across portions of York and Lancaster counties.
The national radar mosaic for the moment the first event began.
3 heavy snow, 1 winter weather. Local standard time, as filed.
Heavy snow fell across Cambria County from the afternoon of December 13 through the evening of December 14. While most of the county saw 6 to 10 inches of snow, amounts as high as 12.7 inches were reported near Nanty-Glo.
Heavy snow fell across Somerset County from the early afternoon on December 13 through the evening of December 14. Most areas saw between 5 and 10 inches of snow. The highest reported snowfall total came from Laurel Summit, where 13.2 inches fell.
Heavy snow fell across York County from the afternoon of December 13 through the afternoon of December 14. Between 4 and 6 inches of snow fell across the county.
Snow fell across Lancaster County from the afternoon of December 13 through the afternoon of December 14. Most of the county saw 3 to 5 inches of snow with localized amounts as high as 7 inches.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Pennsylvania in 2025Every state in 2025This day in weather historyWarnings in Pennsylvania, December 2025
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 2026-10-01. Each event’s entry at NCEI: 1301464, 1301470, 1301475, 1301482.