A crossing shortwave trough helped support ongoing snow showers in the ridges of West Virginia and Pennsylvania.
Every event with a place to put it; 1 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 PBZ wrote it up.
A crossing shortwave trough helped support ongoing snow showers in the ridges of West Virginia and Pennsylvania.
The national radar mosaic for the moment the first event began.
1 winter weather. Local standard time, as filed.
Up to 4.7 inches of snow was reported in 24 hours near Laurel Mountain.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Pennsylvania in 2020Every state in 2020This day in weather historyWarnings in Pennsylvania, December 2020
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: 932736.