Alert archive / Maryland / 2026

Weather alerts in Maryland, September 2026

97 weather alerts in September 2026, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.

Weather alerts by county

Each county as a circle sized by its count in September 2026. Tap one for its archive.

Alerts
97
Warnings
37
Watches
9
Advisories
25
Busiest day
September 4, 202630 alerts

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
Sep 1, 1:38 PM EDTHeat AdvisoryAKQDorchester, Somerset, Wicomico, Worcester54 hr
Sep 1, 3:13 PM EDTMesoscale DiscussionSPCCecil, Harford, Kent2 hr
Sep 1, 4:32 PM EDTSevere Thunderstorm WatchSPCCaroline, Cecil, Harford, Kent, Queen Anne's, Talbot7 hr
Sep 1, 6:32 PM EDTMesoscale DiscussionSPCCecil, Harford88 min
Sep 1, 8:19 PM EDTSevere Thunderstorm WarningLWXCecil41 min
Sep 1, 8:59 PM EDTSevere Thunderstorm WarningLWXCecil61 min
Sep 1, 9:40 PM EDTSevere Thunderstorm WarningPHICaroline, Kent, Queen Anne's65 min
Sep 1, 9:46 PM EDTMesoscale DiscussionSPCCaroline, Cecil, Wicomico, Worcester119 min
Sep 2, 3:53 AM EDTHeat AdvisoryPHICaroline, Kent, Queen Anne's, Talbot40 hr
Sep 2, 11:09 AM EDTMesoscale DiscussionSPCAnne Arundel, Baltimore, Carroll, Frederick, Harford, Howard and 7 more66 min
Sep 2, 11:46 AM EDTSevere Thunderstorm WatchSPCAllegany, Anne Arundel, Baltimore, Calvert, Caroline, Carroll and 13 more5 hr
Sep 2, 12:00 PM EDTSevere Thunderstorm WarningLWXBaltimore, Carroll, Frederick, Harford, Washington45 min
Sep 2, 12:39 PM EDTSevere Thunderstorm WarningLWXAnne Arundel, Baltimore, Carroll, Cecil, Harford, Howard and 1 more51 min
Sep 2, 12:46 PM EDTSevere Thunderstorm WarningLWXBaltimore, Carroll, Frederick, Howard, Montgomery44 min
Sep 2, 1:03 PM EDTSevere Thunderstorm WarningPHIKent, Queen Anne's57 min
Sep 2, 1:06 PM EDTSevere Thunderstorm WarningLWXBaltimore, Cecil, Harford39 min
Sep 2, 1:12 PM EDTSevere Thunderstorm WarningLWXAnne Arundel, Howard, Prince George's48 min
Sep 2, 1:21 PM EDTMesoscale DiscussionSPCAnne Arundel, Baltimore, Calvert, Charles, Harford, Howard and 6 more84 min
Sep 2, 1:43 PM EDTSevere Thunderstorm WarningPHICaroline, Kent, Queen Anne's, Talbot47 min
Sep 2, 2:05 PM EDTSevere Thunderstorm WarningPHICaroline, Kent, Queen Anne's, Talbot40 min
Sep 2, 2:07 PM EDTSevere Thunderstorm WarningAKQDorchester, Wicomico38 min
Sep 2, 2:38 PM EDTSevere Thunderstorm WarningPHICaroline47 min
Sep 2, 2:42 PM EDTSevere Thunderstorm WarningAKQDorchester, Somerset, Wicomico48 min
Sep 2, 3:16 PM EDTSpecial Weather StatementAKQSomerset, Worcester44 min
Sep 2, 4:08 PM EDTHeat AdvisoryLWXCalvert, Charles, Saint Mary's27 hr
Sep 3, 12:02 AM EDTSevere Thunderstorm WarningPHICaroline, Kent, Queen Anne's, Talbot43 min
Sep 3, 9:49 AM EDTSevere Thunderstorm WarningLWXWashington41 min
Sep 3, 3:47 PM EDTCoastal Flood StatementAKQDorchester, Somerset, Wicomico8 hr
Sep 3, 4:16 PM EDTMesoscale DiscussionSPCAllegany, Washington119 min
Sep 3, 4:33 PM EDTSevere Thunderstorm WatchSPCAllegany, Garrett6 hr
Sep 3, 6:19 PM EDTMesoscale DiscussionSPCAllegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 14 more116 min
Sep 3, 8:19 PM EDTMesoscale DiscussionSPCFrederick, Washington56 min
Sep 3, 8:20 PM EDTSevere Thunderstorm WarningLWXAllegany, Washington40 min
Sep 3, 8:28 PM EDTSpecial Weather StatementLWXGarrett32 min
Sep 3, 8:38 PM EDTSevere Thunderstorm WatchSPCAnne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 16 more5 hr
Sep 3, 8:54 PM EDTSevere Thunderstorm WarningLWXGarrett36 min
Sep 3, 8:57 PM EDTSevere Thunderstorm WarningLWXWashington48 min
Sep 3, 9:17 PM EDTSpecial Weather StatementLWXGarrett28 min
Sep 3, 9:30 PM EDTCoastal Flood AdvisoryLWXAnne Arundel4 hr
Sep 3, 9:35 PM EDTSevere Thunderstorm WarningLWXAllegany, Garrett40 min
Sep 3, 10:03 PM EDTSevere Thunderstorm WarningLWXGarrett42 min
Sep 3, 10:08 PM EDTSevere Thunderstorm WarningLWXCarroll, Frederick, Howard, Montgomery52 min
Sep 3, 10:41 PM EDTSevere Thunderstorm WarningLWXBaltimore, Carroll, Howard35 min
Sep 3, 11:13 PM EDTSevere Thunderstorm WarningLWXMontgomery47 min
Sep 3, 11:13 PM EDTMesoscale DiscussionSPCAnne Arundel, Baltimore, Calvert, Caroline, Charles, Dorchester and 13 more92 min
Sep 3, 11:37 PM EDTSevere Thunderstorm Warning Considerable damage threatLWXMontgomery, Prince George's38 min
Sep 3, 11:56 PM EDTSevere Thunderstorm Warning Considerable damage threatLWXAnne Arundel, Calvert, Prince George's49 min
Sep 3, 11:56 PM EDTMesoscale DiscussionSPCAnne Arundel, Prince George's64 min
Sep 3, 11:59 PM EDTSevere Thunderstorm Warning Considerable damage threatPHICaroline, Queen Anne's, Talbot61 min
Sep 4, 12:15 AM EDTSpecial Weather StatementAKQDorchester, Somerset45 min
Sep 4, 12:18 AM EDTSevere Thunderstorm Warning Destructive damage threatPHICaroline, Queen Anne's, Talbot42 min
Sep 4, 12:52 AM EDTSevere Thunderstorm WarningPHICaroline, Talbot53 min
Sep 4, 12:58 AM EDTSpecial Weather StatementAKQDorchester, Somerset, Wicomico, Worcester62 min
Sep 4, 1:59 AM EDTSpecial Weather StatementAKQSomerset46 min
Sep 4, 2:18 AM EDTSevere Thunderstorm WarningAKQSomerset27 min
Sep 4, 12:50 PM EDTSpecial Weather StatementLWXGarrett40 min
Sep 4, 1:02 PM EDTSpecial Weather StatementCTPGarrett13 min
Sep 4, 1:19 PM EDTSevere Thunderstorm WarningLWXGarrett41 min
Sep 4, 1:31 PM EDTMesoscale DiscussionSPCAllegany, Garrett119 min
Sep 4, 2:04 PM EDTSevere Thunderstorm WatchSPCAllegany, Calvert, Charles, Frederick, Garrett, Montgomery and 3 more7 hr
Sep 4, 4:23 PM EDTSevere Thunderstorm WarningLWXCharles, Prince George's27 min
Sep 6, 4:51 AM EDTCoastal Flood StatementAKQDorchester, Somerset, Wicomico, Worcester21 hr
Sep 6, 10:14 PM EDTCoastal Flood AdvisoryLWXAnne Arundel7 hr
Sep 7, 2:08 AM EDTCoastal Flood StatementAKQDorchester, Somerset, Wicomico23 hr
Sep 7, 2:18 PM EDTCoastal Flood AdvisoryLWXAnne Arundel17 hr
Sep 7, 2:21 PM EDTCoastal Flood AdvisoryAKQDorchester, Somerset, Wicomico11 hr
Sep 8, 7:48 AM EDTCoastal Flood AdvisoryLWXHarford52 min
Sep 10, 3:19 AM EDTCoastal Flood AdvisoryLWXAnne Arundel5 hr
Sep 10, 8:37 AM EDTCoastal Flood AdvisoryLWXHarford92 min
Sep 12, 12:57 PM EDTFlood WatchLWXAllegany, Garrett13 hr
Sep 12, 4:51 PM EDTFlash Flood WarningLWXGarrett3 hr
Sep 12, 7:54 PM EDTCoastal Flood AdvisoryLWXHarford6 hr
Sep 13, 12:14 AM EDTSpecial Weather StatementLWXGarrett76 min
Sep 13, 3:51 AM EDTSpecial Weather StatementAKQWorcester39 min
Sep 13, 4:43 AM EDTFlash Flood WarningAKQWorcester3 hr
Sep 13, 5:03 AM EDTAreal Flood AdvisoryAKQDorchester, Somerset, Wicomico, Worcester3 hr
Sep 13, 9:36 PM EDTSpecial Weather StatementLWXGarrett39 min
Sep 19, 3:03 PM EDTCoastal Flood AdvisoryLWXAnne Arundel14 hr
Sep 20, 5:18 AM EDTCoastal Flood AdvisoryLWXHarford102 min
Sep 20, 8:25 AM EDTCoastal Flood AdvisoryLWXAnne Arundel22 hr
Sep 21, 2:22 PM EDTCoastal Flood WatchAKQDorchester, Somerset, Wicomico, Worcester25 hr
Sep 21, 6:00 PM EDTBeach Hazards StatementAKQWorcester6 days
Sep 22, 2:10 AM EDTCoastal Flood AdvisoryAKQDorchester, Somerset, Wicomico, Worcester38 hr
Sep 22, 2:10 AM EDTHigh Surf AdvisoryAKQWorcester5 days
Sep 22, 7:50 AM EDTCoastal Flood WatchLWXAnne Arundel, Saint Mary's31 hr
Sep 22, 7:50 AM EDTCoastal Flood AdvisoryLWXAnne Arundel, Calvert, Charles, Saint Mary's6 days
Sep 22, 2:57 PM EDTCoastal Flood WarningAKQDorchester, Somerset, Wicomico, Worcester5 days
Sep 22, 3:01 PM EDTWind AdvisoryAKQWorcester53 hr
Sep 22, 4:14 PM EDTCoastal Flood AdvisoryPHICaroline, Queen Anne's, Talbot5 days
Sep 23, 8:42 AM EDTCoastal Flood WarningLWXAnne Arundel, Saint Mary's42 hr
Sep 24, 11:53 AM EDTFrost AdvisoryLWXGarrett21 hr
Sep 25, 2:59 AM EDTCoastal Flood AdvisoryLWXAnne Arundel14 hr
Sep 25, 7:47 AM EDTWind AdvisoryAKQWorcester27 hr
Sep 26, 2:50 PM EDTCoastal Flood WatchLWXAnne Arundel32 hr
Sep 26, 2:50 PM EDTCoastal Flood WarningLWXSaint Mary's8 hr
Sep 26, 2:50 PM EDTCoastal Flood AdvisoryLWXAnne Arundel20 hr
Sep 26, 7:26 PM EDTCoastal Flood AdvisoryAKQWorcester23 hr

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

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 archive2025

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.