Alert archive / Virginia / Flash Flood Watches / 2021
Flash Flood Watches in Virginia, September 2021
4 flash flood watches in September 2021. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of flash flood watches reaches back to 2005.
Flash Flood Watches by county
Each county as a circle sized by its count in September 2021. Tap one for its archive.
- Flash Flood Watches
- 4
- Busiest day
- September 21, 20212 flash flood watches
Over time
By day
Days in UTC, the clock the archive keeps.
The alerts
Every alert, in the order issued. Times are local, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 8, 6:11 PM EDT | Flash Flood Watch | LWX | Arlington, Fairfax, Loudoun, City of Alexandria, City of Fairfax, City of Falls Church | 10 hr |
| Sep 16, 2:44 PM EDT | Flash Flood Watch | LWX | Arlington, Fairfax, Loudoun, City of Alexandria, City of Fairfax, City of Falls Church | 6 hr |
| Sep 21, 3:04 AM EDT | Flash Flood Watch | LWX | Albemarle, Amherst, Arlington, Augusta, Clarke, Fairfax and 21 more | 57 hr |
| Sep 21, 5:59 AM EDT | Flash Flood Watch | RNK | Alleghany, Amherst, Bath, Bedford, Bland, Botetourt and 26 more | 41 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Arlington County3
- Fairfax County3
- Loudoun County3
- City of Alexandria3
- City of Fairfax3
- City of Falls Church3
- Amherst County2
- Rockbridge County2
- Albemarle County1
- Augusta County1
- Clarke County1
- Fauquier County1
- Frederick County1
- Greene County1
- Highland County1
- Madison County1
- Nelson County1
- Page County1
- Rappahannock County1
- Rockingham County1
- Shenandoah County1
- Warren County1
- City of Charlottesville1
- City of Harrisonburg1
- City of Staunton1
- City of Waynesboro1
- City of Winchester1
- Alleghany County1
- Bath County1
- Bedford County1
- Bland County1
- Botetourt County1
- Campbell County1
- Carroll County1
- Craig County1
- Floyd County1
- Franklin County1
- Giles County1
- Grayson County1
- Henry County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Rebuilt daily.