Flash Flood in Alexandria city, Virginia

Flash Flood in Alexandria city, Virginia: 44 recorded events between 1999 and 2025. The strongest on record measured 0. That places the county #723 nationally and #34 statewide for this hazard.

Reporting practice changed over time — early decades are undercounted, not calmer.

The busiest decade for flash flood in Alexandria city is the 2020s, when 27 of the county's 44 recorded events were logged. Comparing decades is useful for spotting active periods, but the earliest years are thin because systematic reporting for this hazard began later.

Within the Alexandria city archive, flash flood makes up 26.3% of all recorded severe weather across 10 hazard types. Nationally the county sits at #723 for this hazard and #34 within Virginia, putting it in the 76.0 percentile of all U.S. counties.

Aug is the peak month for flash flood in Alexandria city with 17 recorded events, while Jan is the quietest. Seasonality here is a property of the archive as much as the climate: reports cluster where population and spotter networks are densest.

• Thunderstorm Wind 80

Written by National Weather Service staff at the time of the event · public domain

How many flash flood events are on record in Alexandria city, Virginia?

44 flash flood events are recorded in Alexandria city between 1999 and 2025, causing 0 direct deaths.

What is the strongest flash flood recorded in Alexandria city?

The strongest flash flood on record in Alexandria city measured 0.

Where does the flash flood data for Alexandria city come from?

All events come from the NOAA/NCEI Storm Events Database, the federal public-domain archive of severe weather reports. Dates are UTC, damage is as reported and not inflation-adjusted, and the most recent entries may still be revised.