Winter Storm — Westmoreland Ridges, Pennsylvania

2019-02-20 · Westmoreland Ridges, Pennsylvania

Event narrative

A co-op observer at Donegal reported 8 inches of snow, while 6.8 inches were reported at Laurel Mountain.

Wider weather episode

Low pressure tracked from the Plains to the upper Midwest on February 20th, before transitioning to a coastal system by the morning of the 21st. This low pushed a warm front northward across our region. Widespread precipitation was generated by deep moisture and an area of strong lift that accompanied the warm front. Precipitation started mainly as snow, but transitioned to a mostly brief period of mixed precipitation as warmer air moved in aloft. By late evening on the 20th, the passage of the warm front allowed all precipitation to change to rain.

Source: NOAA Storm Events Database, event_id 810282. Narrative written by the NWS forecast office that issued the report.