Flood Watches in Maryland
292 flood watches since 1986. 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 since 1986. Tap one for its archive.
- Flood Watches
- 292
- Busiest year
- 202541 flood watches
- Average year
- 14over 21 years on file
Over time
By year
Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.
By month of the year
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Prince George's County117
- Anne Arundel County116
- Baltimore County115
- City of Baltimore114
- Cecil County90
- Montgomery County86
- Carroll County80
- Frederick County80
- Howard County80
- Allegany County69
- Harford County68
- Charles County66
- Washington County60
- Calvert County49
- Saint Mary's County49
- Kent County39
- Queen Anne's County34
- Caroline County33
- Talbot County33
- Somerset County30
- Wicomico County30
- Dorchester County29
- Worcester County29
- Garrett County23
The latest flood watches
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 12, 12:57 PM EDT | Flood Watch | LWX | Allegany, Garrett | 13 hr |
| Aug 15, 12:52 PM EDT | Flood Watch | LWX | Allegany, Charles, Garrett, Montgomery, Prince George's | 35 hr |
| Aug 11, 2:06 AM EDT | Flood Watch | LWX | Garrett | 16 hr |
| Aug 4, 4:09 PM EDT | Flood Watch | LWX | Anne Arundel, Baltimore, Charles, Harford, Montgomery, Prince George's and 1 more | 23 hr |
| Aug 2, 2:43 AM EDT | Flood Watch | LWX | Allegany, Anne Arundel, Baltimore, Garrett, Howard, Montgomery and 2 more | 21 hr |
| Jul 28, 1:54 AM EDT | Flood Watch | LWX | Anne Arundel, Baltimore, Cecil, Harford, Howard, City of Baltimore | 17 hr |
| Jul 21, 3:02 PM EDT | Flood Watch | AKQ | Somerset, Wicomico, Worcester | 54 hr |
| Jul 21, 2:20 PM EDT | Flood Watch | LWX | Baltimore, Carroll, Cecil, Frederick, Harford, Howard and 2 more | 7 hr |
| Jul 18, 9:23 AM EDT | Flood Watch | LWX | Allegany, Anne Arundel, Baltimore, Carroll, Cecil, Frederick and 6 more | 14 hr |
| Jul 10, 2:02 AM EDT | Flood Watch | LWX | Allegany, Garrett | 18 hr |
| Jul 9, 4:10 AM EDT | Flood Watch | LWX | Allegany, Anne Arundel, Baltimore, Carroll, Cecil, Frederick and 7 more | 16 hr |
| Jul 7, 4:44 AM EDT | Flood Watch | LWX | Allegany, Garrett | 16 hr |
Nearby
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.