Flash Flood — Alexandria (c), Virginia

2021-08-15 · near Alexandria, Alexandria (c), Virginia

Event narrative

The water level on Backlick Run in Alexandria rapidly rose above flood stage, cresting at 9.35 feet at 12:55 AM EST.

Wider weather episode

A slow moving boundary combined with plenty of moisture and an unstable atmosphere led to instances of flooding and flash flooding overnight on the 14th into the early morning of the 15th.

View location on OpenStreetMap → (38.8031, -77.1331)

Source: NOAA Storm Events Database, event_id 977546. Narrative written by the NWS forecast office that issued the report.