Alert archive / Maryland / Flash Flood Warnings / 2020

Flash Flood Warnings in Maryland, August 2020

32 flash flood warnings in August 2020. 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 August 2020. Tap one for its archive.

Flash Flood Warnings
32
Busiest day
August 4, 20209 flash flood warnings

Over time

By day

Days in UTC, the clock the archive keeps.

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
Aug 4, 2:10 AM EDTFlash Flood WarningPHICaroline, Kent, Queen Anne's, Talbot4 hr
Aug 4, 6:57 AM EDTFlash Flood Warning Considerable damage threatLWXCalvert, Saint Mary's4 hr
Aug 4, 7:32 AM EDTFlash Flood Warning Considerable damage threatLWXAnne Arundel, Calvert, Charles, Prince George's4 hr
Aug 4, 7:50 AM EDTFlash Flood WarningPHICaroline, Kent, Queen Anne's, Talbot4 hr
Aug 4, 8:24 AM EDTFlash Flood WarningAKQDorchester4 hr
Aug 4, 8:39 AM EDTFlash Flood Warning Considerable damage threatLWXAnne Arundel, Baltimore, Prince George's, City of Baltimore4 hr
Aug 4, 8:50 AM EDTFlash Flood WarningPHICaroline, Cecil, Kent, Queen Anne's4 hr
Aug 4, 9:02 AM EDTFlash Flood Warning Considerable damage threatLWXBaltimore, Harford4 hr
Aug 4, 9:23 AM EDTFlash Flood WarningPHICecil4 hr
Aug 6, 7:13 AM EDTFlash Flood WarningPHICecil, Kent, Queen Anne's3 hr
Aug 7, 5:03 PM EDTFlash Flood WarningPHICecil5 hr
Aug 7, 7:41 PM EDTFlash Flood Warning Considerable damage threatLWXBaltimore, Harford104 min
Aug 7, 7:44 PM EDTFlash Flood WarningPHICaroline, Kent, Queen Anne's4 hr
Aug 7, 8:40 PM EDTFlash Flood Warning Considerable damage threatLWXAnne Arundel80 min
Aug 8, 12:49 AM EDTFlash Flood WarningAKQSomerset, Wicomico, Worcester3 hr
Aug 8, 2:24 AM EDTFlash Flood WarningAKQSomerset3 hr
Aug 12, 3:36 PM EDTFlash Flood WarningPHICecil108 min
Aug 12, 3:46 PM EDTFlash Flood WarningPHICaroline3 hr
Aug 12, 4:23 PM EDTFlash Flood Warning Considerable damage threatLWXHarford3 hr
Aug 12, 5:13 PM EDTFlash Flood Warning Considerable damage threatLWXAnne Arundel4 hr
Aug 12, 5:42 PM EDTFlash Flood Warning Considerable damage threatLWXBaltimore, Howard, City of Baltimore3 hr
Aug 12, 5:49 PM EDTFlash Flood Warning Considerable damage threatLWXHoward, Montgomery, Prince George's3 hr
Aug 12, 6:10 PM EDTFlash Flood Warning Considerable damage threatLWXAnne Arundel, Baltimore, City of Baltimore3 hr
Aug 12, 6:54 PM EDTFlash Flood Warning Considerable damage threatLWXMontgomery2 hr
Aug 13, 9:41 AM EDTFlash Flood Warning Considerable damage threatLWXCharles, Prince George's3 hr
Aug 13, 10:14 AM EDTFlash Flood WarningPHIKent, Queen Anne's4 hr
Aug 13, 12:02 PM EDTFlash Flood WarningPHIKent, Queen Anne's2 hr
Aug 23, 7:45 PM EDTFlash Flood Warning Considerable damage threatLWXBaltimore81 min
Aug 28, 6:51 PM EDTFlash Flood Warning Considerable damage threatLWXPrince George's93 min
Aug 28, 9:55 PM EDTFlash Flood Warning Considerable damage threatLWXPrince George's78 min
Aug 28, 10:29 PM EDTFlash Flood Warning Considerable damage threatLWXCharles99 min
Aug 29, 4:03 AM EDTFlash Flood WarningAKQSomerset, Wicomico3 hr

By county

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

Nearby

Alerts in force nowTornadoes on recordThe radar archive20192021

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.