Alert archive / Maryland / Flash Flood Warnings / 2010
Flash Flood Warnings in Maryland, September 2010
10 flash flood warnings in September 2010. 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 warnings reaches back to 1986.
Flash Flood Warnings by county
Each county as a circle sized by its count in September 2010. Tap one for its archive.
- Flash Flood Warnings
- 10
- Busiest day
- September 30, 20108 flash flood warnings
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 27, 1:21 PM EDT | Flash Flood Warning | LWX | Howard, Montgomery | 3 hr |
| Sep 27, 1:38 PM EDT | Flash Flood Warning | LWX | Baltimore, Carroll, Howard | 3 hr |
| Sep 30, 4:57 AM EDT | Flash Flood Warning | LWX | Anne Arundel, Calvert, Charles, Montgomery, Prince George's, Saint Mary's | 6 hr |
| Sep 30, 6:39 AM EDT | Flash Flood Warning | LWX | Anne Arundel, Baltimore, Carroll, Frederick, Harford, Howard and 2 more | 6 hr |
| Sep 30, 10:29 AM EDT | Flash Flood Warning | LWX | Frederick, Washington | 4 hr |
| Sep 30, 10:38 AM EDT | Flash Flood Warning | LWX | Anne Arundel, Calvert, Charles, Howard, Montgomery, Prince George's and 1 more | 6 hr |
| Sep 30, 12:22 PM EDT | Flash Flood Warning | LWX | Anne Arundel, Baltimore, Carroll, Frederick, Harford, Howard and 2 more | 6 hr |
| Sep 30, 4:30 PM EDT | Flash Flood Warning | LWX | Anne Arundel, Calvert, Saint Mary's | 6 hr |
| Sep 30, 4:40 PM EDT | Flash Flood Warning | LWX | Carroll, Frederick, Howard, Montgomery, Washington | 11 hr |
| Sep 30, 6:13 PM EDT | Flash Flood Warning | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Harford and 5 more | 6 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20092011
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.