Alert archive / Maryland / Flash Flood Watches

Flash Flood Watches in Maryland, 2011

32 flash flood watches in 2011. 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 2011. Tap one for its archive.

Flash Flood Watches
32
Busiest month
August11 flash flood watches
Busiest day
April 27, 20112 flash 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.

IssuedProductOfficeCountiesLasted
Apr 15, 4:34 AM EDTFlash Flood WatchLWXAllegany, Baltimore, Carroll, Frederick, Washington, City of Baltimore41 hr
Apr 19, 3:29 PM EDTFlash Flood WatchPBZ3 hr
Apr 21, 2:55 PM EDTFlash Flood WatchPBZ53 hr
Apr 23, 4:06 AM EDTFlash Flood WatchLWXAllegany, Frederick, Washington18 hr
Apr 27, 9:51 AM EDTFlash Flood WatchLWXAllegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 5 more29 hr
Apr 27, 10:09 AM EDTFlash Flood WatchPBZ18 hr
May 13, 9:00 AM EDTFlash Flood WatchLWXAllegany12 hr
May 17, 3:45 AM EDTFlash Flood WatchLWXAllegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 5 more44 hr
May 19, 4:36 AM EDTFlash Flood WatchLWXAllegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 5 more14 hr
May 27, 4:38 AM EDTFlash Flood WatchLWXAllegany19 hr
Jun 19, 1:55 PM EDTFlash Flood WatchPBZ15 hr
Jun 19, 6:42 PM EDTFlash Flood WatchLWXAllegany10 hr
Jul 7, 3:14 PM EDTFlash Flood WatchLWXAnne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 3 more29 hr
Jul 8, 3:56 AM EDTFlash Flood WatchAKQDorchester, Somerset, Wicomico, Worcester20 hr
Jul 8, 3:58 AM EDTFlash Flood WatchPHICaroline, Cecil, Kent, Queen Anne's, Talbot19 hr
Aug 7, 1:55 AM EDTFlash Flood WatchPBZ3 hr
Aug 14, 3:23 AM EDTFlash Flood WatchLWXAnne Arundel, Baltimore, Carroll, Frederick, Prince George's, City of Baltimore20 hr
Aug 14, 3:42 AM EDTFlash Flood WatchPHICaroline, Cecil, Kent, Queen Anne's, Talbot25 hr
Aug 15, 12:10 PM EDTFlash Flood WatchLWXBaltimore, Carroll, City of Baltimore6 hr
Aug 18, 3:12 PM EDTFlash Flood WatchPHICecil, Kent29 hr
Aug 19, 11:54 AM EDTFlash Flood WatchLWXAnne Arundel, Baltimore, Carroll, Prince George's, City of Baltimore8 hr
Aug 21, 3:28 AM EDTFlash Flood WatchPHICecil, Kent17 hr
Aug 21, 11:10 AM EDTFlash Flood WatchLWXAnne Arundel, Baltimore, Carroll, Prince George's, City of Baltimore7 hr
Aug 25, 8:18 AM EDTFlash Flood WatchLWXAnne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 3 more12 hr
Aug 25, 8:01 PM EDTFlash Flood WatchAKQDorchester, Somerset, Wicomico, Worcester4 hr
Aug 26, 5:06 AM EDTFlash Flood WatchLWXAnne Arundel, Baltimore, Calvert, Carroll, Charles, Prince George's and 2 more47 hr
Sep 5, 4:06 AM EDTFlash Flood WatchLWXAllegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 5 more5 days
Sep 5, 3:49 PM EDTFlash Flood WatchPBZ36 hr
Sep 11, 4:13 AM EDTFlash Flood WatchLWXAnne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 3 more20 hr
Sep 22, 11:44 AM EDTFlash Flood WatchLWXAnne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 3 more32 hr
Sep 22, 2:57 PM EDTFlash Flood WatchAKQDorchester, Somerset, Wicomico, Worcester29 hr
Sep 27, 2:15 PM EDTFlash Flood WatchLWXBaltimore, Carroll, Frederick6 hr

By county

Every county with at least one alert. A county page lists each alert that covered it.

The busiest days

Days with the most alerts issued, by UTC date.

  1. April 27, 20112flash flood watches
  2. June 19, 20112flash flood watches
  3. July 8, 20112flash flood watches
  4. August 14, 20112flash flood watches
  5. August 21, 20112flash flood watches
  6. August 26, 20112flash flood watches
  7. September 5, 20112flash flood watches
  8. September 22, 20112flash flood watches
  9. April 15, 20111flash flood watches
  10. April 19, 20111flash flood watches
  11. April 21, 20111flash flood watches
  12. April 23, 20111flash flood watches

Nearby

Alerts in force nowTornadoes on recordThe radar archive20102012

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.