Flash Flood — Lawrence, Pennsylvania

2025-07-14 · near Chewton, Lawrence, Pennsylvania

Event narrative

Report of flooding along Greenhouse Road just north of the intersection with Vinegar Valley Road.

Wider weather episode

A crossing mid-level shortwave supported development of showers and thunderstorms with 2000-3000 J/kg of MUCAPE and weak deep layer shear. Anomalously high PWAT values, even for July, up to 2.0 inches were more than sufficient for any thunderstorms to produce high rainfall rates and flash flooding.

View location on OpenStreetMap → (40.8965, -80.3109)

Source: NOAA Storm Events Database, event_id 1280539. Narrative written by the NWS forecast office that issued the report.