Alert archive / Maryland / Flood Watches
Flood Watches in Maryland, 2009
18 flood watches in 2009. 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 flood watches reaches back to 2005.
Flood Watches by county
Each county as a circle sized by its count in 2009. Tap one for its archive.
- Flood Watches
- 18
- Busiest month
- May6 flood watches
- Busiest day
- June 4, 20093 flood watches
Over time
By month
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 |
|---|---|---|---|---|
| Apr 19, 2:36 PM EDT | Flood Watch | PHI | Cecil | 22 hr |
| May 4, 3:10 AM EDT | Flood Watch | PBZ | 16 hr | |
| May 4, 8:51 AM EDT | Flood Watch | LWX | Allegany, Washington | 4 hr |
| May 5, 3:23 PM EDT | Flood Watch | LWX | Allegany, Frederick, Washington | 37 hr |
| May 5, 3:26 PM EDT | Flood Watch | PBZ | 30 hr | |
| May 8, 2:21 PM EDT | Flood Watch | PBZ | 8 hr | |
| May 26, 11:38 AM EDT | Flood Watch | LWX | Anne Arundel, Prince George's | 7 hr |
| Jun 4, 4:28 AM EDT | Flood Watch | LWX | Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 5 more | 38 hr |
| Jun 4, 2:29 PM EDT | Flood Watch | PBZ | 24 hr | |
| Jun 4, 2:54 PM EDT | Flood Watch | PHI | Cecil | 29 hr |
| Jul 31, 3:39 AM EDT | Flood Watch | PBZ | 10 hr | |
| Aug 13, 3:36 AM EDT | Flood Watch | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 36 min |
| Nov 10, 3:36 PM EST | Flood Watch | AKQ | Dorchester, Somerset, Wicomico, Worcester | 60 hr |
| Nov 12, 8:30 AM EST | Flood Watch | LWX | Anne Arundel, Calvert, Charles, Prince George's, Saint Mary's | 31 hr |
| Dec 2, 1:38 PM EST | Flood Watch | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 4 more | 14 hr |
| Dec 8, 7:57 AM EST | Flood Watch | AKQ | Dorchester, Somerset, Wicomico, Worcester | 23 hr |
| Dec 8, 10:09 AM EST | Flood Watch | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 4 more | 21 hr |
| Dec 24, 2:30 PM EST | Flood Watch | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 3 more | 36 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Anne Arundel County6
- Prince George's County6
- Washington County5
- Frederick County5
- Calvert County5
- Charles County5
- Saint Mary's County5
- Baltimore County4
- Carroll County4
- City of Baltimore4
- Cecil County3
- Allegany County3
- Dorchester County2
- Somerset County2
- Wicomico County2
- Worcester County2
- Caroline County1
- Kent County1
- Queen Anne's County1
- Talbot County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20082010
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.