Alert archive / Maryland / Severe Thunderstorm Warnings / 2018

Severe Thunderstorm Warnings in Maryland, May 2018

57 severe thunderstorm warnings in May 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 severe thunderstorm warnings reaches back to 1986.

Severe Thunderstorm Warnings by county

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

Severe Thunderstorm Warnings
57
Busiest day
May 13, 201812 severe thunderstorm 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
May 10, 2:32 PM EDTSevere Thunderstorm WarningPBZGarrett43 min
May 10, 3:53 PM EDTSevere Thunderstorm WarningLWXFrederick, Washington37 min
May 10, 4:18 PM EDTSevere Thunderstorm WarningLWXFrederick, Montgomery42 min
May 10, 5:17 PM EDTSevere Thunderstorm WarningLWXBaltimore, Carroll, Howard, City of Baltimore43 min
May 10, 5:45 PM EDTSevere Thunderstorm WarningLWXHarford60 min
May 10, 6:37 PM EDTSevere Thunderstorm WarningLWXHarford23 min
May 10, 6:51 PM EDTSevere Thunderstorm WarningPHICecil39 min
May 12, 6:55 PM EDTSevere Thunderstorm WarningLWXBaltimore, Carroll, Frederick, Harford65 min
May 12, 7:16 PM EDTSevere Thunderstorm WarningPHICecil44 min
May 12, 7:25 PM EDTSevere Thunderstorm WarningPHICaroline, Cecil, Kent, Queen Anne's50 min
May 12, 7:44 PM EDTSevere Thunderstorm WarningLWXBaltimore, Harford, City of Baltimore46 min
May 12, 7:45 PM EDTSevere Thunderstorm WarningPHICecil45 min
May 12, 7:46 PM EDTSevere Thunderstorm WarningLWXPrince George's22 min
May 12, 8:02 PM EDTSevere Thunderstorm WarningLWXAnne Arundel43 min
May 12, 8:11 PM EDTSevere Thunderstorm WarningPHICaroline, Cecil, Kent, Queen Anne's49 min
May 12, 8:28 PM EDTSevere Thunderstorm WarningLWXAnne Arundel, Calvert, Prince George's62 min
May 12, 8:40 PM EDTSevere Thunderstorm WarningPHICaroline, Kent, Queen Anne's, Talbot50 min
May 12, 8:47 PM EDTSevere Thunderstorm WarningLWXCalvert, Charles, Prince George's, Saint Mary's88 min
May 12, 8:51 PM EDTSevere Thunderstorm WarningPHICaroline, Kent, Queen Anne's39 min
May 12, 9:16 PM EDTSevere Thunderstorm WarningAKQDorchester, Wicomico59 min
May 12, 9:27 PM EDTSevere Thunderstorm WarningPHICaroline, Queen Anne's, Talbot63 min
May 13, 12:46 AM EDTSevere Thunderstorm WarningAKQSomerset, Worcester29 min
May 13, 6:05 PM EDTSevere Thunderstorm WarningLWXAllegany, Washington55 min
May 13, 6:50 PM EDTSevere Thunderstorm WarningLWXAllegany, Washington40 min
May 13, 7:22 PM EDTSevere Thunderstorm WarningLWXWashington25 min
May 13, 10:12 PM EDTSevere Thunderstorm WarningLWXCharles, Prince George's48 min
May 13, 10:21 PM EDTSevere Thunderstorm WarningLWXPrince George's39 min
May 13, 11:19 PM EDTSevere Thunderstorm WarningAKQDorchester26 min
May 14, 4:12 PM EDTSevere Thunderstorm WarningLWXAllegany48 min
May 14, 4:19 PM EDTSevere Thunderstorm WarningLWXAllegany, Washington41 min
May 14, 4:51 PM EDTSevere Thunderstorm WarningLWXWashington39 min
May 14, 5:13 PM EDTSevere Thunderstorm WarningLWXFrederick, Washington47 min
May 14, 5:29 PM EDTSevere Thunderstorm WarningLWXMontgomery61 min
May 14, 6:07 PM EDTSevere Thunderstorm WarningLWXMontgomery, Prince George's53 min
May 14, 6:33 PM EDTSevere Thunderstorm WarningLWXCharles, Prince George's57 min
May 14, 7:00 PM EDTSevere Thunderstorm WarningLWXCharles, Montgomery, Prince George's30 min
May 14, 7:12 PM EDTSevere Thunderstorm WarningLWXAnne Arundel, Calvert, Charles, Prince George's, Saint Mary's63 min
May 14, 8:11 PM EDTSevere Thunderstorm WarningAKQDorchester, Somerset, Wicomico34 min
May 15, 6:07 PM EDTSevere Thunderstorm WarningLWXCarroll, Frederick38 min
May 15, 6:33 PM EDTSevere Thunderstorm WarningLWXBaltimore, Carroll, Harford42 min
May 15, 6:35 PM EDTSevere Thunderstorm WarningLWXCarroll, Frederick40 min
May 15, 6:35 PM EDTSevere Thunderstorm WarningPHICecil, Kent40 min
May 15, 6:55 PM EDTSevere Thunderstorm WarningLWXBaltimore, Carroll, Frederick, Harford, Howard, Montgomery and 1 more65 min
May 15, 7:16 PM EDTSevere Thunderstorm WarningLWXBaltimore, Carroll, Frederick, Harford44 min
May 15, 7:18 PM EDTSevere Thunderstorm WarningLWXFrederick, Washington42 min
May 15, 7:18 PM EDTSevere Thunderstorm WarningPHICecil57 min
May 15, 7:54 PM EDTSevere Thunderstorm WarningLWXFrederick, Montgomery, Washington51 min
May 15, 8:34 PM EDTSevere Thunderstorm WarningLWXMontgomery, Prince George's41 min
May 22, 3:25 PM EDTSevere Thunderstorm WarningLWXFrederick, Montgomery50 min
May 22, 5:08 PM EDTSevere Thunderstorm WarningLWXCharles, Prince George's52 min
May 22, 5:24 PM EDTSevere Thunderstorm WarningLWXAnne Arundel16 min
May 26, 3:25 PM EDTSevere Thunderstorm WarningLWXMontgomery, Prince George's22 min
May 26, 4:38 PM EDTSevere Thunderstorm WarningLWXWashington52 min
May 26, 5:25 PM EDTSevere Thunderstorm WarningLWXWashington28 min
May 27, 4:09 PM EDTSevere Thunderstorm WarningLWXAnne Arundel, Baltimore, City of Baltimore51 min
May 27, 4:15 PM EDTSevere Thunderstorm WarningPHIKent, Queen Anne's60 min
May 31, 4:10 PM EDTSevere Thunderstorm WarningLWXCarroll, Frederick, Washington50 min

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 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.