Thunderstorm Wind — Lancaster, Pennsylvania

2025-07-26 · near Mt Joy, Lancaster, Pennsylvania

Event narrative

A severe thunderstorm, producing wind gusts estimated near 60 mph, knocked down multiple trees down north of Mount Joy.

Wider weather episode

Showers and thunderstorms across eastern Ohio and western PA associated with a weak shortwave continued approaching portions of central Pennsylvania during the early morning hours of July 26, 2025. As showers and thunderstorms continued progressing eastward across the Commonwealth, interactions with a quasi-stationary boundary in an increasingly unstable and moist environment allowed for intensification of showers and thunderstorms. Severe thunderstorms began to produce tree damage in Blair County before continuing to produce tree damage into the south-central mountains during the afternoon hours. Later in the evening, an isolated cell began to pop up across the Middle Susquehanna Valley in a corridor of enhanced instability and shear, causing tree damage in northern Lancaster County.

View location on OpenStreetMap → (40.1346, -76.4718)

Source: NOAA Storm Events Database, event_id 1276607. Narrative written by the NWS forecast office that issued the report.