Dense Fog — Eastern Chester, Pennsylvania

2025-05-15 to 2025-05-16 · Eastern Chester, Pennsylvania

Event narrative

Dense fog with visibility 1/4 mile or less was observed for several hours at Brandywine Regional Airport.

Wider weather episode

A moist low-level air mass north of an approaching warm front resulted in widespread dense fog across much of eastern Pennsylvania starting during the evening of May 15th and continuing into the early morning of May 16th. The fog dissipated after sunrise.

Source: NOAA Storm Events Database, event_id 1258019. Narrative written by the NWS forecast office that issued the report.