Alert archive / Maryland / Flash Flood Watches

Flash Flood Watches in Maryland, 2018

43 flash flood watches in 2018. 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 2018. Tap one for its archive.

Flash Flood Watches
43
Busiest month
July11 flash flood watches
Busiest day
May 15, 20183 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 14, 2:41 PM EDTFlash Flood WatchPBZ37 hr
May 15, 2:42 AM EDTFlash Flood WatchPBZ20 hr
May 15, 3:40 AM EDTFlash Flood WatchPHICaroline, Cecil, Kent, Queen Anne's, Talbot21 hr
May 15, 4:33 AM EDTFlash Flood WatchLWXAllegany, Anne Arundel, Baltimore, Carroll, Frederick, Harford and 5 more20 hr
May 26, 11:38 PM EDTFlash Flood WatchPHICaroline, Cecil, Kent, Queen Anne's, Talbot23 hr
May 27, 4:25 AM EDTFlash Flood WatchLWXAllegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 8 more16 hr
May 27, 2:48 PM EDTFlash Flood WatchAKQDorchester, Somerset, Wicomico, Worcester12 hr
May 31, 4:06 AM EDTFlash Flood WatchLWXAllegany, Anne Arundel, Baltimore, Carroll, Frederick, Harford and 5 more17 hr
Jun 2, 3:13 AM EDTFlash Flood WatchLWXAllegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 8 more25 hr
Jun 2, 3:20 AM EDTFlash Flood WatchAKQDorchester, Somerset, Wicomico, Worcester39 hr
Jun 2, 3:26 AM EDTFlash Flood WatchPHICaroline, Cecil, Kent, Queen Anne's, Talbot24 hr
Jun 10, 3:47 AM EDTFlash Flood WatchLWXAllegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 8 more24 hr
Jun 10, 3:48 AM EDTFlash Flood WatchPHICaroline, Cecil, Kent, Queen Anne's, Talbot28 hr
Jun 10, 4:12 AM EDTFlash Flood WatchAKQDorchester, Somerset, Wicomico, Worcester22 hr
Jun 20, 10:27 AM EDTFlash Flood WatchLWXAllegany, Washington9 hr
Jun 20, 10:53 AM EDTFlash Flood WatchPBZ11 hr
Jul 5, 4:10 AM EDTFlash Flood WatchPBZ19 hr
Jul 5, 9:56 AM EDTFlash Flood WatchLWXAllegany, Baltimore, Carroll, Frederick, Harford, Howard and 2 more17 hr
Jul 5, 2:59 PM EDTFlash Flood WatchPHICecil20 hr
Jul 20, 2:44 PM EDTFlash Flood WatchPHICaroline, Cecil, Kent, Queen Anne's, Talbot34 hr
Jul 21, 5:05 AM EDTFlash Flood WatchLWXAnne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 7 more21 hr
Jul 22, 11:35 AM EDTFlash Flood WatchLWXAnne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 6 more17 hr
Jul 23, 3:45 AM EDTFlash Flood WatchPHICaroline, Cecil, Kent, Queen Anne's, Talbot68 hr
Jul 23, 4:59 AM EDTFlash Flood WatchLWXAnne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 7 more68 hr
Jul 25, 9:16 PM EDTFlash Flood WatchAKQDorchester3 hr
Jul 27, 4:06 AM EDTFlash Flood WatchLWXAnne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 6 more17 hr
Jul 27, 9:50 AM EDTFlash Flood WatchPHICaroline, Cecil, Kent, Queen Anne's, Talbot13 hr
Jul 31, 11:14 PM EDTFlash Flood WatchLWXCalvert, Charles, Saint Mary's72 hr
Aug 1, 4:10 AM EDTFlash Flood WatchLWXAllegany, Anne Arundel, Baltimore, Carroll, Frederick, Harford and 5 more3 days
Aug 1, 4:16 AM EDTFlash Flood WatchPBZ63 hr
Aug 11, 3:24 AM EDTFlash Flood WatchPHICecil, Kent, Queen Anne's20 hr
Aug 11, 10:50 AM EDTFlash Flood WatchLWXAnne Arundel, Baltimore, Carroll, Frederick, Harford, Howard and 3 more10 hr
Aug 12, 10:08 PM EDTFlash Flood WatchPHICecil24 hr
Aug 13, 4:21 AM EDTFlash Flood WatchLWXAllegany, Anne Arundel, Baltimore, Carroll, Frederick, Harford and 5 more18 hr
Aug 13, 11:31 AM EDTFlash Flood WatchPBZ8 hr
Aug 18, 3:16 AM EDTFlash Flood WatchPHICecil20 hr
Aug 31, 11:03 AM EDTFlash Flood WatchLWXAnne Arundel, Baltimore, Carroll, Frederick, Harford, Howard and 3 more13 hr
Sep 7, 3:29 AM EDTFlash Flood WatchLWXAllegany, Anne Arundel, Baltimore, Howard, Montgomery, Prince George's and 1 more19 hr
Sep 16, 3:11 PM EDTFlash Flood WatchLWXAllegany, Anne Arundel, Baltimore, Carroll, Charles, Frederick and 6 more52 hr
Sep 18, 9:27 AM EDTFlash Flood WatchPHICecil6 hr
Oct 10, 4:23 AM EDTFlash Flood WatchAKQDorchester, Somerset, Wicomico, Worcester47 hr
Oct 10, 3:16 PM EDTFlash Flood WatchPHICaroline, Cecil, Kent, Queen Anne's, Talbot38 hr
Oct 10, 3:42 PM EDTFlash Flood WatchLWXAnne Arundel, Baltimore, Calvert, Charles, Harford, Prince George's and 2 more31 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. May 15, 20183flash flood watches
  2. May 27, 20183flash flood watches
  3. June 2, 20183flash flood watches
  4. June 10, 20183flash flood watches
  5. July 5, 20183flash flood watches
  6. August 1, 20183flash flood watches
  7. August 13, 20183flash flood watches
  8. October 10, 20183flash flood watches
  9. June 20, 20182flash flood watches
  10. July 23, 20182flash flood watches
  11. July 27, 20182flash flood watches
  12. August 11, 20182flash flood watches

Nearby

Alerts in force nowTornadoes on recordThe radar archive20172019

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.