Alert archive / Maryland / Severe Thunderstorm Warnings

Severe Thunderstorm Warnings in Maryland, 1999

65 severe thunderstorm warnings in 1999. 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 1999. Tap one for its archive.

Severe Thunderstorm Warnings
65
Busiest month
April18 severe thunderstorm warnings
Busiest day
April 23, 199910 severe thunderstorm 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
Feb 12, 5:38 PM ESTSevere Thunderstorm WarningLWXCharles32 min
Mar 3, 6:50 PM ESTSevere Thunderstorm WarningLWXWashington30 min
Apr 9, 4:09 PM EDTSevere Thunderstorm WarningPBZGarrett59 min
Apr 9, 6:16 PM EDTSevere Thunderstorm WarningLWXCalvert, Saint Mary's49 min
Apr 9, 6:34 PM EDTSevere Thunderstorm WarningAKQDorchester41 min
Apr 9, 7:13 PM EDTSevere Thunderstorm WarningAKQDorchester47 min
Apr 9, 7:24 PM EDTSevere Thunderstorm WarningPHIKent, Queen Anne's36 min
Apr 9, 7:35 PM EDTSevere Thunderstorm WarningAKQSomerset, Wicomico45 min
Apr 9, 7:35 PM EDTSevere Thunderstorm WarningPHICecil45 min
Apr 11, 2:16 PM EDTSevere Thunderstorm WarningPBZGarrett59 min
Apr 23, 4:20 PM EDTSevere Thunderstorm WarningLWXCharles50 min
Apr 23, 4:23 PM EDTSevere Thunderstorm WarningPHITalbot32 min
Apr 23, 4:34 PM EDTSevere Thunderstorm WarningLWXCalvert, Saint Mary's31 min
Apr 23, 4:38 PM EDTSevere Thunderstorm WarningPHICaroline32 min
Apr 23, 4:43 PM EDTSevere Thunderstorm WarningAKQDorchester32 min
Apr 23, 4:49 PM EDTSevere Thunderstorm WarningLWXCharles, Prince George's51 min
Apr 23, 4:56 PM EDTSevere Thunderstorm WarningAKQDorchester34 min
Apr 23, 5:12 PM EDTSevere Thunderstorm WarningLWXCalvert, Saint Mary's48 min
Apr 23, 5:55 PM EDTSevere Thunderstorm WarningAKQDorchester35 min
Apr 23, 6:15 PM EDTSevere Thunderstorm WarningAKQSomerset30 min
May 7, 6:42 PM EDTSevere Thunderstorm WarningPBZGarrett58 min
May 7, 7:43 PM EDTSevere Thunderstorm WarningLWXAllegany62 min
May 24, 8:50 AM EDTSevere Thunderstorm WarningPHICecil20 min
May 24, 1:43 PM EDTSevere Thunderstorm WarningLWXHoward, Montgomery32 min
May 24, 1:57 PM EDTSevere Thunderstorm WarningAKQSomerset33 min
May 24, 2:14 PM EDTSevere Thunderstorm WarningLWXBaltimore, City of Baltimore31 min
May 24, 2:27 PM EDTSevere Thunderstorm WarningLWXHarford48 min
May 24, 2:43 PM EDTSevere Thunderstorm WarningPHICecil47 min
Jun 2, 6:16 PM EDTSevere Thunderstorm WarningLWXWashington34 min
Jun 14, 5:37 PM EDTSevere Thunderstorm WarningLWXPrince George's48 min
Jun 14, 5:50 PM EDTSevere Thunderstorm WarningLWXAnne Arundel, Calvert60 min
Jul 17, 7:16 PM EDTSevere Thunderstorm WarningPBZGarrett59 min
Jul 22, 8:53 AM EDTSevere Thunderstorm WarningAKQSomerset32 min
Jul 22, 9:14 PM EDTSevere Thunderstorm WarningPHIQueen Anne's31 min
Jul 24, 1:30 PM EDTSevere Thunderstorm WarningLWXCharles50 min
Jul 24, 2:33 PM EDTSevere Thunderstorm WarningLWXSaint Mary's62 min
Jul 24, 2:43 PM EDTSevere Thunderstorm WarningLWXCalvert32 min
Jul 24, 2:56 PM EDTSevere Thunderstorm WarningAKQDorchester44 min
Jul 25, 7:56 PM EDTSevere Thunderstorm WarningLWXWashington34 min
Jul 28, 4:23 PM EDTSevere Thunderstorm WarningLWXCarroll, Howard62 min
Jul 30, 6:03 PM EDTSevere Thunderstorm WarningLWXHoward32 min
Jul 30, 6:22 PM EDTSevere Thunderstorm WarningLWXPrince George's33 min
Jul 30, 7:55 PM EDTSevere Thunderstorm WarningLWXBaltimore45 min
Jul 30, 8:38 PM EDTSevere Thunderstorm WarningLWXBaltimore, City of Baltimore47 min
Aug 1, 12:21 AM EDTSevere Thunderstorm WarningPBZGarrett54 min
Aug 13, 11:34 PM EDTSevere Thunderstorm WarningLWXMontgomery46 min
Aug 14, 3:11 AM EDTSevere Thunderstorm WarningAKQDorchester34 min
Aug 14, 1:25 PM EDTSevere Thunderstorm WarningLWXWashington50 min
Aug 14, 1:47 PM EDTSevere Thunderstorm WarningLWXFrederick48 min
Aug 14, 3:33 PM EDTSevere Thunderstorm WarningLWXMontgomery47 min
Aug 14, 3:39 PM EDTSevere Thunderstorm WarningLWXBaltimore, City of Baltimore46 min
Aug 14, 3:58 PM EDTSevere Thunderstorm WarningLWXHarford47 min
Aug 14, 4:58 PM EDTSevere Thunderstorm WarningLWXAnne Arundel, Prince George's47 min
Aug 14, 5:22 PM EDTSevere Thunderstorm WarningPHIKent, Queen Anne's48 min
Aug 26, 3:10 PM EDTSevere Thunderstorm WarningLWXFrederick, Washington50 min
Aug 26, 4:48 PM EDTSevere Thunderstorm WarningLWXCarroll32 min
Aug 26, 5:11 PM EDTSevere Thunderstorm WarningLWXFrederick49 min
Aug 26, 8:00 PM EDTSevere Thunderstorm WarningPHICecil, Kent45 min
Sep 6, 4:38 PM EDTSevere Thunderstorm WarningPHICecil47 min
Sep 7, 8:08 PM EDTSevere Thunderstorm WarningLWXFrederick, Montgomery62 min
Sep 29, 11:21 PM EDTSevere Thunderstorm WarningLWXWashington49 min
Sep 29, 11:55 PM EDTSevere Thunderstorm WarningLWXFrederick, Montgomery45 min
Sep 30, 12:41 AM EDTSevere Thunderstorm WarningLWXCarroll, Howard44 min
Sep 30, 12:55 AM EDTSevere Thunderstorm WarningLWXPrince George's45 min
Nov 2, 4:18 PM ESTSevere Thunderstorm WarningLWXWashington62 min

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.

Nearby

Alerts in force nowTornadoes on recordThe radar archive19982000

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.