Flash Flood — Fairfax, Virginia

2025-07-12 · near Crowells Corner, Fairfax, Virginia

Event narrative

A 9 foot rise from 228 feet to 237 feet in 1 hour was observed between 425 and 525 PM at the stream gauge Hunter Mill Estates Regional Pond.

Wider weather episode

Slow moving showers and thunderstorms amidst weak flow aloft resulted in flooding and flash flooding across portions of northern Virginia. Localized rainfall totals of two to four inches in about 90 minutes were observed along and north of I-66 towards the Potomac River.

View location on OpenStreetMap → (38.9400, -77.3000)

Source: NOAA Storm Events Database, event_id 1262841. Narrative written by the NWS forecast office that issued the report.