Alert archive / Maryland / 2021

Weather alerts in Maryland, August 2021

241 weather alerts in August 2021, 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 2021. Tap one for its archive.

Alerts
241
Warnings
128
Watches
26
Advisories
31
Busiest day
August 13, 202141 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 5, 4:25 PM EDTSpecial Weather StatementCTPAllegany35 min
Aug 5, 4:58 PM EDTSevere Thunderstorm WarningLWXWashington29 min
Aug 6, 2:32 AM EDTCoastal Flood AdvisoryLWXAnne Arundel2 hr
Aug 7, 4:01 PM EDTAreal Flood AdvisoryAKQDorchester, Somerset, Wicomico, Worcester6 hr
Aug 7, 4:05 PM EDTAreal Flood AdvisoryAKQSomerset5 hr
Aug 7, 9:49 PM EDTAreal Flood AdvisoryPHICaroline5 hr
Aug 9, 2:41 PM EDTAreal Flood AdvisoryPHICaroline, Kent, Queen Anne's3 hr
Aug 9, 3:52 PM EDTSevere Thunderstorm WarningLWXBaltimore, Harford19 min
Aug 9, 4:35 PM EDTSevere Thunderstorm WarningPHICaroline40 min
Aug 9, 4:59 PM EDTFlash Flood WarningPHICaroline, Queen Anne's79 min
Aug 9, 5:12 PM EDTSevere Thunderstorm WarningPHICaroline, Queen Anne's20 min
Aug 9, 6:19 PM EDTSevere Thunderstorm WarningLWXAnne Arundel41 min
Aug 9, 6:23 PM EDTSevere Thunderstorm WarningLWXPrince George's52 min
Aug 9, 6:39 PM EDTFlash Flood Warning Considerable damage threatLWXMontgomery, Prince George's3 hr
Aug 9, 6:49 PM EDTSevere Thunderstorm WarningLWXAnne Arundel, Prince George's22 min
Aug 9, 7:28 PM EDTSevere Thunderstorm WarningLWXMontgomery, Prince George's29 min
Aug 9, 9:32 PM EDTAreal Flood WarningLWXMontgomery105 min
Aug 10, 2:38 AM EDTCoastal Flood AdvisoryLWXAnne Arundel6 hr
Aug 10, 3:33 AM EDTHeat AdvisoryPHICaroline, Kent, Queen Anne's, Talbot4 days
Aug 10, 1:33 PM EDTExcessive Heat WatchLWXAnne Arundel, Baltimore, Calvert, Carroll, Cecil, Charles and 8 more37 hr
Aug 10, 1:33 PM EDTHeat AdvisoryLWXAnne Arundel, Baltimore, Calvert, Carroll, Cecil, Charles and 8 more29 hr
Aug 10, 2:30 PM EDTMesoscale DiscussionSPCAnne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 11 more3 hr
Aug 10, 4:34 PM EDTSevere Thunderstorm WarningLWXMontgomery41 min
Aug 10, 4:49 PM EDTSevere Thunderstorm WarningLWXMontgomery41 min
Aug 10, 5:08 PM EDTSevere Thunderstorm WarningLWXMontgomery18 min
Aug 10, 5:25 PM EDTSevere Thunderstorm WarningLWXPrince George's50 min
Aug 10, 5:34 PM EDTSevere Thunderstorm WarningLWXFrederick, Howard, Montgomery29 min
Aug 10, 5:53 PM EDTSevere Thunderstorm WarningLWXPrince George's29 min
Aug 10, 5:55 PM EDTSevere Thunderstorm WarningLWXCarroll, Frederick27 min
Aug 10, 6:14 PM EDTSevere Thunderstorm WarningLWXCarroll26 min
Aug 10, 6:29 PM EDTSevere Thunderstorm WarningLWXBaltimore, City of Baltimore46 min
Aug 10, 6:38 PM EDTSevere Thunderstorm WarningLWXAnne Arundel, Prince George's52 min
Aug 10, 6:55 PM EDTSevere Thunderstorm WarningLWXBaltimore, Harford50 min
Aug 10, 7:01 PM EDTSevere Thunderstorm WarningLWXPrince George's24 min
Aug 10, 7:04 PM EDTSevere Thunderstorm WarningLWXBaltimore, Cecil, Harford41 min
Aug 10, 7:12 PM EDTSpecial Weather StatementPHIKent, Queen Anne's33 min
Aug 10, 7:28 PM EDTSevere Thunderstorm WarningLWXCalvert, Charles, Prince George's, Saint Mary's62 min
Aug 10, 7:42 PM EDTSpecial Weather StatementPHIKent, Queen Anne's, Talbot33 min
Aug 10, 7:51 PM EDTSevere Thunderstorm WarningLWXCecil30 min
Aug 10, 8:13 PM EDTSpecial Weather StatementPHICaroline, Talbot32 min
Aug 10, 8:29 PM EDTSpecial Weather StatementAKQDorchester46 min
Aug 10, 8:43 PM EDTSpecial Weather StatementPHICaroline32 min
Aug 10, 9:11 PM EDTSpecial Weather StatementAKQDorchester49 min
Aug 11, 3:55 AM EDTHeat AdvisoryAKQDorchester, Somerset, Wicomico, Worcester63 hr
Aug 11, 1:01 PM EDTMesoscale DiscussionSPCCarroll, Charles, Frederick, Howard, Montgomery, Prince George's and 1 more89 min
Aug 11, 2:02 PM EDTSevere Thunderstorm WatchSPCAllegany, Anne Arundel, Baltimore, Calvert, Carroll, Cecil and 9 more6 hr
Aug 11, 2:51 PM EDTSevere Thunderstorm WarningLWXWashington39 min
Aug 11, 2:59 PM EDTSevere Thunderstorm WarningLWXFrederick46 min
Aug 11, 3:02 PM EDTSevere Thunderstorm WatchSPCCaroline, Kent, Queen Anne's, Talbot6 hr
Aug 11, 3:15 PM EDTSevere Thunderstorm Warning Considerable damage threatLWXFrederick, Washington45 min
Aug 11, 3:42 PM EDTSevere Thunderstorm WarningLWXCarroll, Frederick, Montgomery48 min
Aug 11, 3:47 PM EDTMesoscale DiscussionSPCAnne Arundel, Baltimore, Calvert, Carroll, Cecil, Charles and 9 more88 min
Aug 11, 4:06 PM EDTSevere Thunderstorm WarningLWXBaltimore, Carroll, Howard, Montgomery39 min
Aug 11, 4:20 PM EDTSevere Thunderstorm WarningLWXMontgomery, Prince George's40 min
Aug 11, 4:34 PM EDTSevere Thunderstorm WarningLWXWashington41 min
Aug 11, 4:45 PM EDTSevere Thunderstorm Warning Considerable damage threatLWXMontgomery, Prince George's30 min
Aug 11, 5:01 PM EDTSevere Thunderstorm WarningLWXAnne Arundel, Howard, Montgomery, Prince George's44 min
Aug 11, 5:32 PM EDTSevere Thunderstorm WarningLWXAnne Arundel, Baltimore, Harford, Howard, City of Baltimore43 min
Aug 11, 6:11 PM EDTSpecial Weather StatementPHICaroline, Kent, Queen Anne's64 min
Aug 11, 6:14 PM EDTSevere Thunderstorm WarningLWXCecil, Harford27 min
Aug 11, 6:44 PM EDTMesoscale DiscussionSPCCecil91 min
Aug 12, 2:15 AM EDTHeat AdvisoryLWXAllegany, Anne Arundel, Baltimore, Calvert, Carroll, Cecil and 9 more18 hr
Aug 12, 6:04 PM EDTHeat AdvisoryLWXAllegany, Anne Arundel, Baltimore, Calvert, Carroll, Cecil and 9 more25 hr
Aug 13, 12:33 PM EDTMesoscale DiscussionSPCAnne Arundel, Baltimore, Carroll, Charles, Frederick, Harford and 5 more87 min
Aug 13, 1:11 PM EDTSevere Thunderstorm WatchSPCAnne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 13 more7 hr
Aug 13, 1:43 PM EDTSevere Thunderstorm WarningLWXAllegany, Washington47 min
Aug 13, 2:38 PM EDTSevere Thunderstorm WarningLWXWashington35 min
Aug 13, 3:36 PM EDTSevere Thunderstorm WarningLWXFrederick39 min
Aug 13, 3:50 PM EDTSevere Thunderstorm WarningLWXMontgomery40 min
Aug 13, 4:05 PM EDTSevere Thunderstorm WarningLWXMontgomery40 min
Aug 13, 4:30 PM EDTSevere Thunderstorm Warning Considerable damage threatLWXCarroll, Howard, Montgomery45 min
Aug 13, 4:42 PM EDTSevere Thunderstorm WarningLWXBaltimore, City of Baltimore48 min
Aug 13, 4:46 PM EDTSevere Thunderstorm WarningLWXMontgomery29 min
Aug 13, 4:48 PM EDTMesoscale DiscussionSPCAnne Arundel, Baltimore, Cecil, Charles, Harford, Howard and 2 more87 min
Aug 13, 4:49 PM EDTSevere Thunderstorm Warning Considerable damage threatLWXAnne Arundel, Baltimore, Howard, Montgomery, Prince George's, City of Baltimore41 min
Aug 13, 4:49 PM EDTSevere Thunderstorm WarningLWXBaltimore, Harford41 min
Aug 13, 4:59 PM EDTSevere Thunderstorm WarningLWXBaltimore, Harford46 min
Aug 13, 5:11 PM EDTSevere Thunderstorm WarningLWXMontgomery, Prince George's49 min
Aug 13, 5:20 PM EDTSevere Thunderstorm WarningLWXBaltimore, Harford, City of Baltimore40 min
Aug 13, 5:22 PM EDTSevere Thunderstorm WarningLWXHarford38 min
Aug 13, 5:25 PM EDTSevere Thunderstorm WarningLWXAnne Arundel, Calvert, Prince George's50 min
Aug 13, 5:34 PM EDTSpecial Weather StatementCTPHarford41 min
Aug 13, 5:35 PM EDTSevere Thunderstorm Warning Considerable damage threatLWXAnne Arundel, Prince George's25 min
Aug 13, 5:52 PM EDTSevere Thunderstorm WarningLWXCecil, Harford24 min
Aug 13, 5:56 PM EDTSevere Thunderstorm WarningLWXCharles, Montgomery, Prince George's49 min
Aug 13, 6:01 PM EDTSevere Thunderstorm WarningLWXAnne Arundel, Prince George's44 min
Aug 13, 6:02 PM EDTSpecial Weather StatementPHIKent, Queen Anne's58 min
Aug 13, 6:02 PM EDTMesoscale DiscussionSPCWicomico, Worcester58 min
Aug 13, 6:05 PM EDTSevere Thunderstorm WarningLWXCharles40 min
Aug 13, 6:06 PM EDTAreal Flood WarningLWXMontgomery114 min
Aug 13, 6:10 PM EDTAreal Flood WarningLWXBaltimore, City of Baltimore110 min
Aug 13, 6:15 PM EDTSevere Thunderstorm WarningLWXAnne Arundel, Calvert, Prince George's45 min
Aug 13, 6:29 PM EDTSpecial Weather StatementPHICaroline31 min
Aug 13, 6:29 PM EDTSevere Thunderstorm WarningPHIQueen Anne's, Talbot25 min
Aug 13, 6:33 PM EDTSevere Thunderstorm WarningLWXCharles42 min
Aug 13, 6:45 PM EDTSevere Thunderstorm WarningPHICaroline, Queen Anne's30 min
Aug 13, 7:07 PM EDTSevere Thunderstorm WarningLWXCalvert, Charles, Saint Mary's39 min
Aug 13, 7:11 PM EDTSevere Thunderstorm WarningLWXAnne Arundel, Calvert, Charles, Prince George's, Saint Mary's34 min
Aug 13, 7:12 PM EDTSevere Thunderstorm WarningPHICaroline, Queen Anne's33 min
Aug 13, 7:23 PM EDTSevere Thunderstorm WarningAKQDorchester52 min
Aug 13, 7:41 PM EDTSevere Thunderstorm WarningLWXCalvert, Saint Mary's21 min
Aug 13, 7:43 PM EDTSevere Thunderstorm WarningPHICaroline47 min
Aug 13, 7:57 PM EDTAreal Flood AdvisoryPHICaroline, Queen Anne's, Talbot93 min
Aug 13, 7:59 PM EDTSpecial Weather StatementAKQSomerset31 min
Aug 13, 8:10 PM EDTSpecial Weather StatementAKQWicomico, Worcester50 min
Aug 13, 8:40 PM EDTAreal Flood AdvisoryPHICaroline62 min
Aug 14, 1:10 PM EDTMesoscale DiscussionSPCCalvert, Charles, Dorchester, Prince George's, Saint Mary's, Somerset and 1 more2 hr
Aug 14, 6:14 PM EDTFlash Flood WatchLWXAnne Arundel, Calvert, Charles, Howard, Montgomery, Prince George's10 hr
Aug 14, 10:28 PM EDTSevere Thunderstorm WarningLWXCalvert, Charles, Prince George's47 min
Aug 14, 10:37 PM EDTSpecial Weather StatementAKQDorchester23 min
Aug 14, 10:44 PM EDTFlash Flood Warning Considerable damage threatLWXCalvert, Charles, Prince George's3 hr
Aug 14, 11:02 PM EDTSpecial Weather StatementPHITalbot43 min
Aug 14, 11:05 PM EDTSpecial Weather StatementAKQDorchester40 min
Aug 14, 11:54 PM EDTAreal Flood WarningLWXCalvert, Charles, Saint Mary's4 hr
Aug 15, 12:13 AM EDTFlash Flood Warning Considerable damage threatLWXPrince George's3 hr
Aug 15, 12:17 AM EDTAreal Flood AdvisoryAKQDorchester, Wicomico3 hr
Aug 15, 12:42 AM EDTFlash Flood Warning Considerable damage threatLWXMontgomery, Prince George's2 hr
Aug 15, 1:25 AM EDTAreal Flood WarningLWXCalvert, Charles, Prince George's2 hr
Aug 15, 5:47 PM EDTFlash Flood WatchLWXCharles18 hr
Aug 16, 5:24 PM EDTFlash Flood Warning Considerable damage threatLWXPrince George's2 hr
Aug 16, 5:53 PM EDTAreal Flood AdvisoryAKQDorchester2 hr
Aug 16, 8:47 PM EDTFlash Flood Warning Considerable damage threatLWXWashington2 hr
Aug 16, 9:04 PM EDTFlash Flood Warning Considerable damage threatLWXAllegany2 hr
Aug 16, 11:32 PM EDTFlash Flood Warning Considerable damage threatLWXMontgomery3 hr
Aug 17, 12:39 AM EDTCoastal Flood AdvisoryLWXAnne Arundel100 min
Aug 17, 2:17 AM EDTAreal Flood WarningLWXMontgomery4 hr
Aug 17, 8:54 AM EDTFlash Flood WatchLWXAnne Arundel, Baltimore, Cecil, Harford, City of Baltimore9 hr
Aug 17, 10:17 AM EDTAreal Flood AdvisoryAKQDorchester3 hr
Aug 17, 12:00 PM EDTAreal Flood AdvisoryAKQDorchester, Wicomico3 hr
Aug 17, 1:54 PM EDTFlash Flood WatchLWXAllegany, Baltimore, Carroll, Frederick, Harford, Howard and 3 more27 hr
Aug 17, 6:40 PM EDTCoastal Flood AdvisoryLWXAnne Arundel, Baltimore, City of Baltimore11 hr
Aug 18, 8:46 AM EDTMesoscale DiscussionSPCFrederick, Washington119 min
Aug 18, 10:58 AM EDTMesoscale DiscussionSPCAnne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 9 more92 min
Aug 18, 11:37 AM EDTTornado WatchSPCAllegany, Anne Arundel, Baltimore, Calvert, Carroll, Cecil and 12 more11 hr
Aug 18, 3:12 PM EDTTornado WarningLWXAllegany, Washington16 min
Aug 18, 3:20 PM EDTCoastal Flood StatementAKQDorchester11 hr
Aug 18, 3:29 PM EDTMesoscale DiscussionSPCAnne Arundel, Baltimore, Carroll, Cecil, Frederick, Harford and 5 more91 min
Aug 18, 4:29 PM EDTSevere Thunderstorm WarningLWXSaint Mary's14 min
Aug 18, 4:47 PM EDTSpecial Weather StatementAKQDorchester43 min
Aug 18, 4:57 PM EDTMesoscale DiscussionSPCAnne Arundel, Baltimore, Carroll, Cecil, Frederick, Harford and 6 more93 min
Aug 18, 5:13 PM EDTSevere Thunderstorm WarningLWXCarroll, Frederick, Washington47 min
Aug 18, 5:26 PM EDTTornado WarningLWXFrederick, Washington17 min
Aug 18, 6:31 PM EDTTornado WarningLWXCecil29 min
Aug 18, 7:01 PM EDTCoastal Flood AdvisoryLWXAnne Arundel, Baltimore, Harford, City of Baltimore14 hr
Aug 18, 8:57 PM EDTTornado WarningLWXBaltimore22 min
Aug 18, 11:59 PM EDTFlash Flood Warning Considerable damage threatLWXCecil2 hr
Aug 19, 2:11 PM EDTFlash Flood WatchLWXAllegany, Anne Arundel, Baltimore, Calvert, Charles, Howard and 4 more28 hr
Aug 19, 2:57 PM EDTFlash Flood WatchAKQDorchester, Somerset, Wicomico31 hr
Aug 19, 3:22 PM EDTFlash Flood WatchPHICaroline, Kent, Queen Anne's, Talbot23 hr
Aug 19, 4:28 PM EDTBeach Hazards StatementAKQWorcester3 days
Aug 19, 10:01 PM EDTSpecial Weather StatementAKQDorchester, Somerset59 min
Aug 19, 10:59 PM EDTSpecial Weather StatementAKQDorchester, Wicomico61 min
Aug 20, 12:07 AM EDTSpecial Weather StatementAKQWorcester53 min
Aug 20, 4:52 AM EDTFlash Flood Warning Considerable damage threatLWXFrederick102 min
Aug 20, 5:18 AM EDTSpecial Weather StatementAKQSomerset, Wicomico, Worcester57 min
Aug 20, 5:39 AM EDTSpecial Weather StatementPHICaroline36 min
Aug 20, 6:09 AM EDTSpecial Weather StatementPHICaroline36 min
Aug 20, 6:15 AM EDTSpecial Weather StatementAKQWorcester45 min
Aug 20, 6:34 AM EDTAreal Flood WarningLWXFrederick2 hr
Aug 20, 6:39 AM EDTAreal Flood AdvisoryPHICaroline, Kent, Queen Anne's, Talbot8 hr
Aug 20, 7:35 AM EDTAreal Flood WarningLWXMontgomery, Prince George's9 hr
Aug 20, 7:55 AM EDTFlash Flood Warning Considerable damage threatLWXMontgomery2 hr
Aug 20, 8:16 AM EDTFlash Flood Warning Considerable damage threatLWXMontgomery111 min
Aug 20, 8:21 AM EDTFlash Flood Warning Considerable damage threatLWXMontgomery, Prince George's101 min
Aug 20, 10:23 AM EDTSpecial Weather StatementAKQDorchester67 min
Aug 20, 11:07 AM EDTAreal Flood AdvisoryPHICaroline, Talbot3 hr
Aug 20, 11:20 AM EDTAreal Flood WarningLWXAnne Arundel, Calvert3 hr
Aug 20, 12:01 PM EDTAreal Flood AdvisoryAKQDorchester119 min
Aug 21, 2:11 AM EDTAreal Flood AdvisoryAKQSomerset3 hr
Aug 21, 3:38 PM EDTSpecial Weather StatementAKQDorchester, Wicomico67 min
Aug 22, 5:45 AM EDTCoastal Flood AdvisoryLWXAnne Arundel2 hr
Aug 22, 9:28 AM EDTSpecial Weather StatementPHICaroline, Queen Anne's47 min
Aug 22, 9:41 AM EDTAreal Flood AdvisoryPHICaroline, Kent, Queen Anne's, Talbot2 hr
Aug 22, 10:01 AM EDTSpecial Weather StatementPHICaroline44 min
Aug 22, 11:44 AM EDTAreal Flood AdvisoryAKQDorchester, Wicomico3 hr
Aug 22, 1:14 PM EDTSevere Thunderstorm WarningLWXSaint Mary's46 min
Aug 22, 1:23 PM EDTAreal Flood AdvisoryAKQWorcester3 hr
Aug 22, 1:51 PM EDTSevere Thunderstorm WarningLWXSaint Mary's39 min
Aug 22, 2:14 PM EDTAreal Flood WarningLWXSaint Mary's2 hr
Aug 22, 4:41 PM EDTSevere Thunderstorm WarningLWXCharles, Prince George's49 min
Aug 22, 9:20 PM EDTCoastal Flood StatementAKQDorchester7 hr
Aug 23, 2:57 AM EDTCoastal Flood AdvisoryLWXAnne Arundel8 hr
Aug 25, 4:21 PM EDTSevere Thunderstorm WarningLWXWashington39 min
Aug 25, 9:20 PM EDTSevere Thunderstorm WarningLWXAllegany, Washington40 min
Aug 26, 3:31 PM EDTSevere Thunderstorm WarningLWXPrince George's44 min
Aug 26, 4:03 PM EDTSevere Thunderstorm WarningLWXMontgomery42 min
Aug 26, 5:00 PM EDTSpecial Weather StatementCTPGarrett45 min
Aug 26, 5:49 PM EDTSevere Thunderstorm WarningLWXAllegany41 min
Aug 27, 2:56 AM EDTFlash Flood WatchLWXAnne Arundel, Baltimore, Cecil, Harford, Howard, Montgomery and 2 more17 hr
Aug 27, 1:41 PM EDTMesoscale DiscussionSPCAnne Arundel, Baltimore, Calvert, Carroll, Cecil, Charles and 9 more3 hr
Aug 27, 2:35 PM EDTSevere Thunderstorm WarningLWXMontgomery40 min
Aug 27, 3:05 PM EDTSevere Thunderstorm WarningLWXMontgomery40 min
Aug 27, 3:25 PM EDTSevere Thunderstorm WarningLWXFrederick30 min
Aug 27, 3:36 PM EDTSevere Thunderstorm Warning Considerable damage threatLWXMontgomery, Prince George's19 min
Aug 27, 4:11 PM EDTAreal Flood WarningLWXMontgomery, Prince George's3 hr
Aug 27, 4:14 PM EDTSevere Thunderstorm WarningLWXCarroll, Frederick46 min
Aug 27, 4:44 PM EDTAreal Flood WarningLWXPrince George's3 hr
Aug 27, 4:59 PM EDTSevere Thunderstorm WarningLWXAnne Arundel33 min
Aug 27, 5:06 PM EDTSevere Thunderstorm WarningLWXBaltimore, Carroll20 min
Aug 27, 5:21 PM EDTSevere Thunderstorm WarningLWXCharles, Prince George's39 min
Aug 27, 5:52 PM EDTSevere Thunderstorm WarningLWXBaltimore, Harford53 min
Aug 27, 6:10 PM EDTSevere Thunderstorm WarningLWXCharles32 min
Aug 27, 6:11 PM EDTAreal Flood WarningLWXCharles, Prince George's3 hr
Aug 27, 6:13 PM EDTAreal Flood WarningLWXBaltimore, Harford3 hr
Aug 27, 6:17 PM EDTSevere Thunderstorm WarningLWXBaltimore, Harford29 min
Aug 27, 6:28 PM EDTSevere Thunderstorm WarningLWXCalvert, Charles, Prince George's, Saint Mary's47 min
Aug 27, 6:48 PM EDTSpecial Weather StatementAKQDorchester57 min
Aug 27, 7:10 PM EDTSevere Thunderstorm WarningPHIKent, Queen Anne's, Talbot65 min
Aug 27, 7:37 PM EDTSevere Thunderstorm WarningPHIKent, Queen Anne's34 min
Aug 27, 7:40 PM EDTSpecial Weather StatementAKQDorchester50 min
Aug 27, 8:12 PM EDTSpecial Weather StatementAKQWicomico48 min
Aug 27, 9:35 PM EDTSevere Thunderstorm WarningLWXCharles40 min
Aug 27, 10:08 PM EDTSevere Thunderstorm WarningLWXCalvert, Charles, Prince George's, Saint Mary's52 min
Aug 27, 11:19 PM EDTSpecial Weather StatementPHITalbot26 min
Aug 28, 12:07 AM EDTSpecial Weather StatementAKQSomerset, Wicomico, Worcester38 min
Aug 28, 12:44 AM EDTSpecial Weather StatementAKQWorcester46 min
Aug 28, 1:05 PM EDTMesoscale DiscussionSPCAllegany, Frederick, Washington115 min
Aug 28, 4:20 PM EDTSevere Thunderstorm WarningLWXWashington40 min
Aug 28, 4:24 PM EDTAreal Flood WarningLWXAllegany3 hr
Aug 28, 7:18 PM EDTSevere Thunderstorm WarningLWXMontgomery42 min
Aug 29, 7:03 PM EDTCoastal Flood AdvisoryLWXAnne Arundel5 hr
Aug 30, 4:54 AM EDTFlash Flood WatchLWXAllegany, Anne Arundel, Baltimore, Calvert, Carroll, Cecil and 9 more62 hr
Aug 30, 5:00 AM EDTFlash Flood WatchPHICaroline, Kent, Queen Anne's, Talbot71 hr
Aug 30, 11:48 AM EDTFlash Flood WatchLWXAnne Arundel, Baltimore, Charles, Harford, Howard, Montgomery and 2 more6 hr
Aug 30, 3:46 PM EDTSpecial Weather StatementPHIKent29 min
Aug 30, 4:27 PM EDTSpecial Weather StatementPHIKent33 min
Aug 30, 4:51 PM EDTMesoscale DiscussionSPCAnne Arundel, Calvert, Caroline, Cecil, Charles, Howard and 6 more84 min
Aug 30, 4:54 PM EDTSevere Thunderstorm WarningPHIKent, Queen Anne's51 min
Aug 30, 6:04 PM EDTSevere Thunderstorm WarningLWXCharles, Saint Mary's25 min
Aug 30, 7:48 PM EDTSpecial Weather StatementAKQSomerset42 min
Aug 30, 9:13 PM EDTCoastal Flood AdvisoryLWXAnne Arundel4 hr
Aug 31, 12:56 AM EDTRiver Flood WatchLWXWashington24 hr
Aug 31, 12:56 AM EDTRiver Flood WatchLWXAllegany21 days
Aug 31, 12:56 AM EDTRiver Flood WatchLWXWashington21 days
Aug 31, 12:56 AM EDTRiver Flood WatchLWXFrederick21 days
Aug 31, 12:56 AM EDTRiver Flood WatchLWXAllegany64 hr
Aug 31, 11:28 AM EDTRiver Flood WatchLWXAllegany21 days
Aug 31, 11:29 AM EDTRiver Flood WatchLWXMontgomery63 hr
Aug 31, 11:40 AM EDTRiver Flood WatchLWXWashington21 days
Aug 31, 11:43 AM EDTRiver Flood WatchLWXWashington21 days
Aug 31, 11:45 AM EDTRiver Flood WatchLWXWashington28 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 archive20202022

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. Rebuilt daily.