Alert archive / Maryland / Flash Flood Warnings

Flash Flood Warnings in Maryland, 2018

63 flash flood warnings 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 warnings reaches back to 1986.

Flash Flood Warnings by county

Each county as a circle sized by its count in 2018. Tap one for its archive.

Flash Flood Warnings
63
Busiest month
July17 flash flood warnings
Busiest day
May 27, 20187 flash flood warnings

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 16, 4:37 AM EDTFlash Flood WarningLWXMontgomery2 hr
May 12, 8:50 PM EDTFlash Flood WarningPHICaroline, Kent, Queen Anne's3 hr
May 14, 6:56 PM EDTFlash Flood WarningLWXMontgomery3 hr
May 15, 7:41 PM EDTFlash Flood WarningLWXFrederick3 hr
May 15, 7:56 PM EDTFlash Flood WarningLWXFrederick3 hr
May 15, 8:20 PM EDTFlash Flood WarningLWXFrederick, Washington3 hr
May 15, 8:40 PM EDTFlash Flood Warning EmergencyLWXFrederick3 hr
May 19, 1:19 PM EDTFlash Flood WarningLWXCalvert, Saint Mary's3 hr
May 27, 2:01 PM EDTFlash Flood WarningLWXBaltimore, City of Baltimore3 hr
May 27, 4:26 PM EDTFlash Flood Warning EmergencyLWXBaltimore, Howard6 hr
May 27, 4:50 PM EDTFlash Flood WarningLWXBaltimore, City of Baltimore5 hr
May 27, 5:06 PM EDTFlash Flood Warning EmergencyLWXAnne Arundel, Baltimore, Howard5 hr
May 27, 5:47 PM EDTFlash Flood WarningLWXBaltimore, Carroll, Frederick, Howard, City of Baltimore4 hr
May 27, 5:51 PM EDTFlash Flood WarningLWXAnne Arundel, Howard7 hr
May 27, 6:31 PM EDTFlash Flood WarningLWXHoward4 hr
May 31, 5:12 PM EDTFlash Flood WarningLWXFrederick, Washington97 min
May 31, 6:37 PM EDTFlash Flood WarningLWXBaltimore, Howard, City of Baltimore2 hr
Jun 2, 2:42 PM EDTFlash Flood WarningAKQSomerset4 hr
Jun 9, 1:10 PM EDTFlash Flood WarningAKQWorcester6 hr
Jun 9, 1:35 PM EDTFlash Flood WarningLWXPrince George's2 hr
Jun 10, 5:00 PM EDTFlash Flood WarningPHICaroline108 min
Jul 2, 4:06 PM EDTFlash Flood WarningPBZGarrett114 min
Jul 3, 7:54 PM EDTFlash Flood WarningPHICecil4 hr
Jul 5, 2:38 PM EDTFlash Flood WarningPBZGarrett2 hr
Jul 17, 3:03 PM EDTFlash Flood WarningLWXAnne Arundel, Baltimore, City of Baltimore3 hr
Jul 21, 7:36 PM EDTFlash Flood WarningLWXCharles3 hr
Jul 21, 9:01 PM EDTFlash Flood WarningLWXMontgomery3 hr
Jul 21, 11:12 PM EDTFlash Flood WarningLWXFrederick, Montgomery3 hr
Jul 21, 11:26 PM EDTFlash Flood WarningLWXAnne Arundel, Baltimore, City of Baltimore3 hr
Jul 23, 10:34 PM EDTFlash Flood WarningLWXBaltimore, Carroll3 hr
Jul 24, 3:24 AM EDTFlash Flood WarningPHICaroline, Cecil, Kent, Queen Anne's3 hr
Jul 25, 6:00 PM EDTFlash Flood WarningLWXCarroll3 hr
Jul 25, 6:00 PM EDTFlash Flood WarningPHICaroline, Queen Anne's, Talbot3 hr
Jul 25, 6:16 PM EDTFlash Flood WarningLWXMontgomery, Prince George's3 hr
Jul 25, 7:27 PM EDTFlash Flood WarningLWXBaltimore, City of Baltimore3 hr
Jul 27, 2:44 PM EDTFlash Flood WarningLWXSaint Mary's4 hr
Jul 27, 5:42 PM EDTFlash Flood WarningLWXBaltimore, City of Baltimore3 hr
Jul 27, 5:46 PM EDTFlash Flood WarningLWXBaltimore, Harford4 hr
Aug 2, 10:32 PM EDTFlash Flood WarningLWXAllegany3 hr
Aug 4, 1:23 AM EDTFlash Flood WarningLWXCarroll, Frederick3 hr
Aug 7, 5:22 PM EDTFlash Flood WarningLWXBaltimore2 hr
Aug 11, 6:12 PM EDTFlash Flood WarningPHICecil, Kent, Queen Anne's3 hr
Aug 11, 6:45 PM EDTFlash Flood WarningPHICaroline, Queen Anne's, Talbot5 hr
Aug 11, 9:36 PM EDTFlash Flood WarningLWXCalvert3 hr
Aug 13, 5:35 PM EDTFlash Flood WarningLWXBaltimore, City of Baltimore3 hr
Aug 31, 6:37 PM EDTFlash Flood WarningLWXHarford3 hr
Aug 31, 6:45 PM EDTFlash Flood WarningPBZGarrett67 min
Aug 31, 8:55 PM EDTFlash Flood WarningLWXAnne Arundel, Baltimore, City of Baltimore103 min
Aug 31, 9:28 PM EDTFlash Flood WarningPHIKent, Queen Anne's3 hr
Sep 1, 3:11 PM EDTFlash Flood WarningPBZGarrett49 min
Sep 6, 4:21 PM EDTFlash Flood WarningLWXAllegany3 hr
Sep 7, 5:40 PM EDTFlash Flood WarningPBZGarrett3 hr
Sep 7, 6:00 PM EDTFlash Flood WarningLWXMontgomery, Prince George's3 hr
Sep 7, 6:48 PM EDTFlash Flood WarningLWXBaltimore, Carroll, City of Baltimore3 hr
Sep 8, 3:14 AM EDTFlash Flood WarningPHIKent, Queen Anne's, Talbot3 hr
Sep 18, 2:06 AM EDTFlash Flood WarningLWXAnne Arundel, Baltimore, Howard, Prince George's, City of Baltimore3 hr
Oct 8, 4:26 PM EDTFlash Flood WarningPHICaroline, Kent, Queen Anne's, Talbot3 hr
Oct 11, 10:06 PM EDTFlash Flood WarningPHICaroline, Kent, Queen Anne's, Talbot6 hr
Oct 11, 10:57 PM EDTFlash Flood WarningAKQDorchester, Somerset, Wicomico6 hr
Oct 11, 11:36 PM EDTFlash Flood WarningPHIKent, Queen Anne's4 hr
Oct 11, 11:47 PM EDTFlash Flood WarningPHICaroline, Talbot4 hr
Oct 12, 12:08 AM EDTFlash Flood WarningPHIKent, Queen Anne's4 hr
Oct 12, 12:39 AM EDTFlash Flood WarningAKQWicomico, Worcester9 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 27, 20187flash flood warnings
  2. October 12, 20186flash flood warnings
  3. July 25, 20184flash flood warnings
  4. July 22, 20183flash flood warnings
  5. July 27, 20183flash flood warnings
  6. September 1, 20183flash flood warnings
  7. September 7, 20183flash flood warnings
  8. May 15, 20182flash flood warnings
  9. May 16, 20182flash flood warnings
  10. May 31, 20182flash flood warnings
  11. June 9, 20182flash flood warnings
  12. July 24, 20182flash flood warnings

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. Rebuilt daily.