Alert archive / Maryland / 2024

Weather alerts in Maryland, August 2024

167 weather alerts in August 2024, 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 August 2024. Tap one for its archive.

Alerts
167
Warnings
97
Watches
22
Advisories
19
Busiest day
August 9, 202438 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
Aug 1, 12:01 PM EDTHeat AdvisoryLWXAnne Arundel, Baltimore, Calvert, Carroll, Cecil, Charles and 8 more32 hr
Aug 1, 2:29 PM EDTExcessive Heat WarningAKQDorchester, Somerset, Wicomico, Worcester30 hr
Aug 1, 2:29 PM EDTHeat AdvisoryAKQWorcester30 hr
Aug 1, 2:53 PM EDTMesoscale DiscussionSPCAnne Arundel, Baltimore, Calvert, Carroll, Cecil, Charles and 10 more2 hr
Aug 1, 3:15 PM EDTSpecial Weather StatementAKQWorcester45 min
Aug 1, 3:21 PM EDTAreal Flood AdvisoryAKQWorcester8 min
Aug 1, 3:29 PM EDTFlash Flood WarningAKQWorcester98 min
Aug 1, 3:54 PM EDTAreal Flood AdvisoryAKQWorcester74 min
Aug 2, 4:17 AM EDTExcessive Heat WarningPHICaroline, Kent, Queen Anne's, Talbot16 hr
Aug 2, 4:34 AM EDTExcessive Heat WarningLWXAnne Arundel, Baltimore, Calvert, Cecil, Charles, Harford and 3 more15 hr
Aug 2, 3:29 PM EDTSevere Thunderstorm WarningLWXCecil, Harford46 min
Aug 2, 3:45 PM EDTMesoscale DiscussionSPCCecil, Harford60 min
Aug 2, 3:55 PM EDTSevere Thunderstorm WarningLWXCecil, Harford65 min
Aug 2, 4:07 PM EDTSevere Thunderstorm WatchSPCCaroline, Cecil, Harford, Kent, Queen Anne's, Talbot4 hr
Aug 2, 4:33 PM EDTSevere Thunderstorm WarningLWXCecil27 min
Aug 2, 4:51 PM EDTSevere Thunderstorm WarningLWXCecil, Harford69 min
Aug 2, 6:06 PM EDTSevere Thunderstorm WarningLWXCecil39 min
Aug 2, 7:01 PM EDTMesoscale DiscussionSPCCaroline, Cecil, Kent, Queen Anne's, Talbot59 min
Aug 2, 7:26 PM EDTSevere Thunderstorm WarningLWXBaltimore, Carroll, Harford, Howard, City of Baltimore49 min
Aug 2, 9:36 PM EDTFlash Flood WarningLWXAnne Arundel, Baltimore, City of Baltimore3 hr
Aug 3, 3:38 AM EDTFlood WatchLWXAnne Arundel, Baltimore, Carroll, Cecil, Harford, Howard and 3 more17 hr
Aug 3, 12:56 PM EDTMesoscale DiscussionSPCAnne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 11 more94 min
Aug 3, 1:20 PM EDTSevere Thunderstorm WatchSPCAnne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 11 more8 hr
Aug 3, 1:47 PM EDTSevere Thunderstorm WarningLWXWashington23 min
Aug 3, 2:53 PM EDTMesoscale DiscussionSPCBaltimore, Carroll, Frederick, Harford, Washington67 min
Aug 3, 3:11 PM EDTSevere Thunderstorm WarningLWXFrederick, Montgomery31 min
Aug 3, 3:51 PM EDTSevere Thunderstorm WarningLWXBaltimore, Carroll, Frederick39 min
Aug 3, 4:42 PM EDTSevere Thunderstorm WarningLWXBaltimore, Harford, Howard, City of Baltimore48 min
Aug 3, 5:20 PM EDTSevere Thunderstorm WarningLWXMontgomery25 min
Aug 3, 5:22 PM EDTSevere Thunderstorm WarningLWXBaltimore, Cecil, Harford53 min
Aug 3, 5:39 PM EDTSevere Thunderstorm WarningLWXHoward, Montgomery, Prince George's51 min
Aug 3, 5:43 PM EDTSevere Thunderstorm WarningLWXWashington32 min
Aug 3, 6:09 PM EDTSevere Thunderstorm WarningLWXCecil36 min
Aug 3, 6:13 PM EDTSevere Thunderstorm WarningLWXFrederick, Washington32 min
Aug 3, 6:36 PM EDTSevere Thunderstorm WarningLWXMontgomery, Prince George's28 min
Aug 3, 6:57 PM EDTSpecial Weather StatementAKQDorchester48 min
Aug 3, 7:01 PM EDTSevere Thunderstorm WarningAKQDorchester33 min
Aug 3, 7:14 PM EDTSevere Thunderstorm WarningPHIKent, Queen Anne's61 min
Aug 3, 7:15 PM EDTSevere Thunderstorm WarningPHICaroline, Talbot60 min
Aug 3, 7:21 PM EDTSevere Thunderstorm WarningAKQSomerset, Wicomico, Worcester39 min
Aug 3, 7:38 PM EDTSevere Thunderstorm WarningLWXCecil40 min
Aug 6, 1:06 PM EDTMesoscale DiscussionSPCCecil84 min
Aug 6, 1:46 PM EDTSevere Thunderstorm WarningLWXBaltimore, Harford29 min
Aug 6, 2:06 PM EDTSevere Thunderstorm WarningLWXBaltimore24 min
Aug 6, 2:29 PM EDTFlash Flood WarningLWXBaltimore110 min
Aug 6, 2:31 PM EDTSevere Thunderstorm WarningLWXBaltimore32 min
Aug 6, 3:22 PM EDTFlood WatchLWXBaltimore, Cecil, Harford, City of Baltimore11 hr
Aug 6, 6:31 PM EDTMesoscale DiscussionSPCCarroll, Cecil, Frederick, Harford, Washington89 min
Aug 6, 11:00 PM EDTFlash Flood WarningLWXWashington3 hr
Aug 7, 12:05 AM EDTAreal Flood WarningLWXBaltimore, Carroll, Harford3 hr
Aug 7, 12:32 PM EDTCoastal Flood WatchLWXAnne Arundel27 hr
Aug 7, 2:18 PM EDTCoastal Flood AdvisoryAKQDorchester, Somerset, Wicomico67 hr
Aug 7, 2:43 PM EDTFlood WatchLWXAllegany, Anne Arundel, Baltimore, Carroll, Cecil, Frederick and 6 more45 hr
Aug 7, 3:14 PM EDTBeach Hazards StatementAKQWorcester53 hr
Aug 7, 4:08 PM EDTFlash Flood WarningPHICaroline3 hr
Aug 7, 5:59 PM EDTFlash Flood WarningPHICaroline, Queen Anne's, Talbot115 min
Aug 7, 7:04 PM EDTFlash Flood WarningLWXFrederick72 min
Aug 8, 3:36 AM EDTHigh Surf AdvisoryAKQWorcester39 hr
Aug 8, 4:08 AM EDTCoastal Flood AdvisoryLWXAnne Arundel, Baltimore, Charles, City of Baltimore41 hr
Aug 8, 11:40 AM EDTCoastal Flood WatchAKQDorchester4 hr
Aug 8, 11:49 AM EDTRiver Flood WatchLWXWashington25 hr
Aug 8, 11:49 AM EDTRiver Flood WatchLWXFrederick44 hr
Aug 8, 11:49 AM EDTRiver Flood WatchLWXWashington31 hr
Aug 8, 11:49 AM EDTRiver Flood WatchLWXFrederick40 hr
Aug 8, 11:49 AM EDTRiver Flood WatchLWXWashington31 hr
Aug 8, 11:49 AM EDTRiver Flood WatchLWXMontgomery31 hr
Aug 8, 11:49 AM EDTRiver Flood WatchLWXMontgomery31 hr
Aug 8, 2:20 PM EDTCoastal Flood AdvisoryPHICaroline, Kent, Queen Anne's, Talbot40 hr
Aug 8, 3:13 PM EDTWind AdvisoryPHICaroline, Kent, Queen Anne's, Talbot27 hr
Aug 8, 3:24 PM EDTCoastal Flood WarningLWXAnne Arundel, Baltimore, Harford, City of Baltimore31 hr
Aug 8, 3:24 PM EDTCoastal Flood AdvisoryLWXAnne Arundel, Baltimore, Calvert, Cecil, Harford, Prince George's and 2 more35 hr
Aug 8, 3:30 PM EDTCoastal Flood WarningAKQDorchester30 hr
Aug 8, 5:45 PM EDTTornado WarningLWXMontgomery15 min
Aug 8, 6:37 PM EDTTornado WatchSPCAnne Arundel, Baltimore, Calvert, Carroll, Cecil, Charles and 8 more12 hr
Aug 8, 8:38 PM EDTMesoscale DiscussionSPCAnne Arundel, Baltimore, Calvert, Charles, Frederick, Harford and 6 more2 hr
Aug 8, 11:04 PM EDTMesoscale DiscussionSPCBaltimore, Carroll, Cecil, Frederick, Harford, Howard and 3 more116 min
Aug 8, 11:53 PM EDTFlash Flood WarningLWXAllegany, Washington3 hr
Aug 9, 1:50 AM EDTFlash Flood WarningLWXBaltimore, Carroll, Frederick, Howard3 hr
Aug 9, 2:49 AM EDTAreal Flood WarningLWXAllegany, Washington28 hr
Aug 9, 3:52 AM EDTFlash Flood WarningLWXBaltimore, Carroll8 hr
Aug 9, 4:36 AM EDTAreal Flood WarningLWXBaltimore, Carroll, Frederick, Howard4 hr
Aug 9, 4:38 AM EDTMesoscale DiscussionSPCAnne Arundel, Baltimore, Calvert, Carroll, Cecil, Charles and 11 more3 hr
Aug 9, 4:39 AM EDTTornado WarningLWXCharles17 min
Aug 9, 5:17 AM EDTFlash Flood WarningLWXAllegany2 hr
Aug 9, 5:45 AM EDTTornado WarningLWXCharles30 min
Aug 9, 6:13 AM EDTTornado WarningLWXCharles17 min
Aug 9, 6:17 AM EDTTornado WatchSPCAnne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 15 more8 hr
Aug 9, 6:37 AM EDTFlash Flood WarningLWXMontgomery2 hr
Aug 9, 7:00 AM EDTFlash Flood WarningLWXMontgomery4 hr
Aug 9, 7:40 AM EDTTornado WarningLWXCarroll, Howard, Montgomery20 min
Aug 9, 7:46 AM EDTAreal Flood WarningLWXAllegany7 hr
Aug 9, 7:48 AM EDTTornado WarningLWXCharles, Prince George's27 min
Aug 9, 8:00 AM EDTFlash Flood WarningLWXMontgomery, Prince George's3 hr
Aug 9, 8:04 AM EDTTornado WarningLWXCarroll26 min
Aug 9, 8:23 AM EDTTornado WarningLWXPrince George's11 min
Aug 9, 8:27 AM EDTFlash Flood WarningLWXAnne Arundel, Howard, Montgomery, Prince George's3 hr
Aug 9, 8:48 AM EDTFlash Flood WarningLWXBaltimore, Carroll, Frederick, Howard95 min
Aug 9, 8:57 AM EDTTornado WarningLWXCarroll18 min
Aug 9, 9:04 AM EDTAreal Flood WarningLWXMontgomery4 hr
Aug 9, 9:19 AM EDTCoastal Flood WarningPHIKent10 hr
Aug 9, 10:20 AM EDTAreal Flood WarningLWXCarroll, Frederick6 hr
Aug 9, 10:23 AM EDTAreal Flood WarningLWXBaltimore, Carroll, Frederick, Howard3 hr
Aug 9, 10:26 AM EDTMesoscale DiscussionSPCAnne Arundel, Baltimore, Caroline, Carroll, Cecil, Dorchester and 8 more94 min
Aug 9, 10:33 AM EDTAreal Flood WarningLWXMontgomery, Prince George's3 hr
Aug 9, 10:34 AM EDTAreal Flood WarningLWXMontgomery3 hr
Aug 9, 11:05 AM EDTCoastal Flood AdvisoryLWXHarford16 hr
Aug 9, 11:13 AM EDTAreal Flood WarningLWXHoward, Montgomery5 hr
Aug 9, 12:19 PM EDTRiver Flood WarningLWXWashington18 hr
Aug 9, 4:50 PM EDTAreal Flood WarningLWXBaltimore, Howard8 hr
Aug 9, 6:20 PM EDTRiver Flood WarningLWXWashington9 hr
Aug 9, 6:22 PM EDTRiver Flood WarningLWXMontgomery22 hr
Aug 9, 6:26 PM EDTRiver Flood WatchLWXCecil22 hr
Aug 16, 3:07 PM EDTCoastal Flood AdvisoryLWXAnne Arundel15 hr
Aug 16, 4:00 PM EDTBeach Hazards StatementAKQWorcester3 days
Aug 17, 4:15 AM EDTCoastal Flood AdvisoryAKQDorchester26 hr
Aug 17, 6:14 AM EDTCoastal Flood AdvisoryLWXHarford5 hr
Aug 17, 1:44 PM EDTCoastal Flood AdvisoryLWXAnne Arundel, Baltimore, Calvert, Harford, City of Baltimore22 hr
Aug 17, 3:53 PM EDTCoastal Flood StatementAKQSomerset, Wicomico13 hr
Aug 17, 4:42 PM EDTSevere Thunderstorm WarningLWXCharles33 min
Aug 17, 5:37 PM EDTFlash Flood WarningLWXMontgomery3 hr
Aug 17, 5:53 PM EDTSevere Thunderstorm WarningLWXHoward, Montgomery10 min
Aug 18, 3:07 AM EDTFlood WatchLWXAnne Arundel, Baltimore, Carroll, Cecil, Harford, Howard and 3 more20 hr
Aug 18, 6:03 AM EDTCoastal Flood StatementAKQDorchester, Somerset, Wicomico25 hr
Aug 18, 1:09 PM EDTMesoscale DiscussionSPCAnne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 16 more96 min
Aug 18, 2:02 PM EDTSevere Thunderstorm WatchSPCAnne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 16 more8 hr
Aug 18, 2:49 PM EDTSpecial Weather StatementAKQWicomico26 min
Aug 18, 2:54 PM EDTSevere Thunderstorm WarningAKQWicomico36 min
Aug 18, 4:30 PM EDTMesoscale DiscussionSPCAnne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 16 more90 min
Aug 18, 6:44 PM EDTSevere Thunderstorm WarningLWXHoward, Montgomery31 min
Aug 18, 6:56 PM EDTSpecial Weather StatementAKQDorchester64 min
Aug 18, 7:02 PM EDTSpecial Weather StatementAKQWicomico58 min
Aug 18, 7:03 PM EDTSevere Thunderstorm WarningLWXBaltimore, Harford27 min
Aug 18, 7:25 PM EDTFlash Flood WarningLWXBaltimore3 hr
Aug 18, 7:40 PM EDTSpecial Weather StatementAKQWicomico, Worcester80 min
Aug 18, 7:58 PM EDTSevere Thunderstorm WarningLWXBaltimore, Harford47 min
Aug 18, 8:12 PM EDTFlash Flood WarningLWXBaltimore, City of Baltimore3 hr
Aug 18, 9:36 PM EDTFlash Flood WarningLWXHoward, Montgomery83 min
Aug 18, 9:48 PM EDTFlash Flood Warning Considerable damage threatLWXBaltimore, Howard, City of Baltimore88 min
Aug 18, 11:13 PM EDTAreal Flood WarningLWXAnne Arundel, Baltimore, Howard, City of Baltimore3 hr
Aug 19, 2:25 PM EDTMesoscale DiscussionSPCCecil2 hr
Aug 19, 3:24 PM EDTMesoscale DiscussionSPCAnne Arundel, Calvert, Caroline, Charles, Dorchester, Harford and 8 more2 hr
Aug 19, 5:58 PM EDTSevere Thunderstorm WarningAKQSomerset, Worcester62 min
Aug 26, 2:29 PM EDTSevere Thunderstorm WarningLWXCharles46 min
Aug 26, 4:54 PM EDTSevere Thunderstorm WarningLWXAnne Arundel51 min
Aug 27, 3:59 AM EDTHeat AdvisoryPHICaroline, Kent, Queen Anne's, Talbot40 hr
Aug 27, 2:36 PM EDTHeat AdvisoryLWXAllegany, Anne Arundel, Baltimore, Calvert, Carroll, Cecil and 9 more28 hr
Aug 28, 2:53 AM EDTHeat AdvisoryAKQDorchester, Somerset, Wicomico, Worcester41 hr
Aug 28, 6:29 PM EDTSevere Thunderstorm WarningLWXAllegany26 min
Aug 29, 10:59 AM EDTFlood WatchLWXAllegany, Frederick, Montgomery, Washington12 hr
Aug 29, 1:20 PM EDTMesoscale DiscussionSPCAllegany, Frederick, Garrett, Washington115 min
Aug 29, 3:54 PM EDTSevere Thunderstorm WatchSPCAllegany, Carroll, Charles, Frederick, Garrett, Howard and 3 more7 hr
Aug 29, 4:37 PM EDTSevere Thunderstorm WarningLWXMontgomery38 min
Aug 29, 5:13 PM EDTSevere Thunderstorm WarningLWXFrederick, Montgomery47 min
Aug 29, 5:40 PM EDTMesoscale DiscussionSPCAllegany, Anne Arundel, Baltimore, Carroll, Charles, Frederick and 7 more95 min
Aug 29, 5:56 PM EDTSevere Thunderstorm Warning Considerable damage threatLWXFrederick, Montgomery49 min
Aug 29, 6:12 PM EDTSevere Thunderstorm WarningLWXAllegany33 min
Aug 29, 6:26 PM EDTSevere Thunderstorm WarningLWXGarrett33 min
Aug 29, 6:48 PM EDTSevere Thunderstorm Warning Considerable damage threatLWXAllegany42 min
Aug 29, 6:57 PM EDTFlash Flood WarningLWXAllegany3 hr
Aug 29, 9:10 PM EDTFlash Flood WarningLWXAllegany, Washington116 min
Aug 30, 1:40 PM EDTCoastal Flood AdvisoryLWXAnne Arundel44 hr
Aug 31, 12:39 PM EDTMesoscale DiscussionSPCGarrett2 hr
Aug 31, 1:27 PM EDTSevere Thunderstorm WatchSPCAllegany, Garrett, Washington6 hr
Aug 31, 3:28 PM EDTMesoscale DiscussionSPCAllegany, Garrett2 hr
Aug 31, 3:41 PM EDTSevere Thunderstorm WarningLWXAllegany34 min
Aug 31, 4:01 PM EDTSevere Thunderstorm WarningLWXAllegany, Washington44 min
Aug 31, 4:37 PM EDTSevere Thunderstorm Warning Considerable damage threatLWXWashington38 min

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 archive20232025

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.