Alert archive / Maryland / Flash Flood Watches / 2021
Flash Flood Watches in Maryland, June 2021
5 flash flood watches in June 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 June 2021. Tap one for its archive.
- Flash Flood Watches
- 5
- Busiest day
- June 10, 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 |
|---|---|---|---|---|
| Jun 3, 8:56 AM EDT | Flash Flood Watch | LWX | Baltimore, Carroll, Cecil, Frederick, Harford, Howard and 2 more | 13 hr |
| Jun 10, 2:53 AM EDT | Flash Flood Watch | LWX | Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 8 more | 43 hr |
| Jun 10, 10:14 AM EDT | Flash Flood Watch | AKQ | Dorchester, Somerset, Wicomico, Worcester | 10 hr |
| Jun 14, 10:25 PM EDT | Flash Flood Watch | LWX | Anne Arundel, Charles, Montgomery, Prince George's | 4 hr |
| Jun 30, 2:23 PM EDT | Flash Flood Watch | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Cecil, Charles and 7 more | 42 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Montgomery County4
- Baltimore County3
- Carroll County3
- Frederick County3
- Harford County3
- Howard County3
- City of Baltimore3
- Anne Arundel County3
- Charles County3
- Prince George's County3
- Cecil County2
- Calvert County2
- Saint Mary's County2
- Allegany County1
- Washington County1
- Dorchester County1
- Somerset County1
- Wicomico County1
- Worcester 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. Warning verification from the Mesonet's Cow. Rebuilt daily.