Alert archive / Maryland / Flash Flood Warnings / 1999
Flash Flood Warnings in Maryland, September 1999
23 flash flood warnings in September 1999. 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 1999. Tap one for its archive.
- Flash Flood Warnings
- 23
- Busiest day
- September 16, 199916 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 9, 5:42 PM EDT | Flash Flood Warning | LWX | Baltimore, City of Baltimore | 63 min |
| Sep 9, 6:23 PM EDT | Flash Flood Warning | LWX | Howard | 62 min |
| Sep 9, 7:37 PM EDT | Flash Flood Warning | LWX | Baltimore, Howard | 93 min |
| Sep 9, 7:37 PM EDT | Flash Flood Warning | LWX | City of Baltimore | 93 min |
| Sep 9, 7:54 PM EDT | Flash Flood Warning | LWX | Montgomery | 91 min |
| Sep 9, 9:32 PM EDT | Flash Flood Warning | LWX | Montgomery | 3 hr |
| Sep 16, 8:04 AM EDT | Flash Flood Warning | LWX | Anne Arundel, Calvert, Charles, Prince George's | 8 hr |
| Sep 16, 8:04 AM EDT | Flash Flood Warning | LWX | Saint Mary's | 8 hr |
| Sep 16, 8:04 AM EDT | Flash Flood Warning | LWX | Baltimore, City of Baltimore | 8 hr |
| Sep 16, 8:04 AM EDT | Flash Flood Warning | LWX | Harford | 8 hr |
| Sep 16, 9:25 AM EDT | Flash Flood Warning | PHI | Cecil, Kent, Queen Anne's | 6 hr |
| Sep 16, 9:25 AM EDT | Flash Flood Warning | PHI | Caroline, Talbot | 6 hr |
| Sep 16, 11:25 AM EDT | Flash Flood Warning | LWX | Montgomery | 5 hr |
| Sep 16, 11:25 AM EDT | Flash Flood Warning | LWX | Carroll, Howard | 5 hr |
| Sep 16, 3:12 PM EDT | Flash Flood Warning | PHI | Caroline, Queen Anne's, Talbot | 3 hr |
| Sep 16, 3:12 PM EDT | Flash Flood Warning | PHI | Cecil, Kent | 3 hr |
| Sep 16, 4:05 PM EDT | Flash Flood Warning | LWX | Anne Arundel, Calvert, Prince George's | 3 hr |
| Sep 16, 4:05 PM EDT | Flash Flood Warning | LWX | Baltimore, Carroll, Harford, Howard, City of Baltimore | 3 hr |
| Sep 16, 4:55 PM EDT | Flash Flood Warning | AKQ | Somerset, Wicomico, Worcester | 3 hr |
| Sep 16, 4:55 PM EDT | Flash Flood Warning | AKQ | Dorchester | 3 hr |
| Sep 16, 6:13 PM EDT | Flash Flood Warning | PHI | Cecil, Kent, Queen Anne's | 3 hr |
| Sep 16, 6:13 PM EDT | Flash Flood Warning | PHI | Caroline, Talbot | 3 hr |
| Sep 16, 8:10 PM EDT | Flash Flood Warning | AKQ | Dorchester, Somerset, Wicomico, Worcester | 8 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Baltimore County4
- City of Baltimore4
- Howard County4
- Montgomery County3
- Cecil County3
- Kent County3
- Queen Anne's County3
- Caroline County3
- Talbot County3
- Anne Arundel County2
- Calvert County2
- Prince George's County2
- Harford County2
- Carroll County2
- Somerset County2
- Wicomico County2
- Worcester County2
- Dorchester County2
- Charles County1
- Saint Mary's County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive19982000
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.