Alert archive / Maryland / 2018

Weather alerts in Maryland, April 2018

78 weather alerts in April 2018, 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 April 2018. Tap one for its archive.

Alerts
78
Warnings
27
Watches
11
Advisories
24
Busiest day
April 16, 201829 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
Apr 1, 3:16 AM EDTWinter Storm WatchPBZ10 hr
Apr 1, 4:01 AM EDTWinter Weather AdvisoryLWXAllegany, Baltimore, Carroll, Frederick, Harford, Howard and 2 more27 hr
Apr 1, 4:08 AM EDTWinter Weather AdvisoryPHICecil33 hr
Apr 1, 1:32 PM EDTWinter Storm WarningPBZ17 hr
Apr 1, 1:44 PM EDTWinter Storm WarningLWXAllegany17 hr
Apr 2, 3:47 AM EDTMesoscale DiscussionSPCWashington6 hr
Apr 3, 1:58 PM EDTWind AdvisoryPBZ30 hr
Apr 3, 3:32 PM EDTWind AdvisoryPHICaroline, Cecil, Kent, Queen Anne's, Talbot28 hr
Apr 3, 5:33 PM EDTWind AdvisoryLWXAllegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 8 more25 hr
Apr 3, 6:38 PM EDTMesoscale DiscussionSPCAllegany, Garrett2 hr
Apr 4, 12:01 AM EDTDense Fog AdvisoryPHICecil10 hr
Apr 4, 7:44 AM EDTDense Fog AdvisoryLWXBaltimore, Harford, City of Baltimore2 hr
Apr 4, 1:27 PM EDTMesoscale DiscussionSPCCalvert, Caroline, Dorchester, Saint Mary's, Somerset, Talbot and 2 more3 hr
Apr 11, 1:34 PM EDTFire Weather WatchLWXAllegany, Anne Arundel, Baltimore, Calvert, Charles, Howard and 5 more14 hr
Apr 12, 3:42 AM EDTRed Flag WarningLWXAllegany, Charles, Howard, Montgomery, Prince George's, Washington16 hr
Apr 12, 8:44 AM EDTRed Flag WarningPBZ11 hr
Apr 14, 2:41 PM EDTFlash Flood WatchPBZ37 hr
Apr 15, 6:08 AM EDTCoastal Flood AdvisoryPHICaroline, Queen Anne's, Talbot39 hr
Apr 15, 10:29 PM EDTAreal Flood WarningPBZGarrett18 hr
Apr 15, 11:31 PM EDTCoastal Flood AdvisoryLWXAnne Arundel, Baltimore, Saint Mary's, City of Baltimore4 hr
Apr 16, 2:12 AM EDTSevere Thunderstorm WarningLWXCharles17 min
Apr 16, 2:34 AM EDTSevere Thunderstorm WarningLWXCalvert, Charles, Saint Mary's26 min
Apr 16, 2:37 AM EDTTornado WarningLWXSaint Mary's23 min
Apr 16, 2:41 AM EDTSevere Thunderstorm WarningLWXAnne Arundel, Howard, Montgomery, Prince George's16 min
Apr 16, 3:01 AM EDTCoastal Flood AdvisoryLWXAnne Arundel, Baltimore, Calvert, Charles, Harford, Saint Mary's and 1 more23 hr
Apr 16, 3:45 AM EDTSpecial Weather StatementPHIKent, Queen Anne's, Talbot30 min
Apr 16, 3:54 AM EDTSpecial Weather StatementAKQDorchester, Wicomico51 min
Apr 16, 3:56 AM EDTSevere Thunderstorm WarningPHICecil, Kent, Queen Anne's, Talbot24 min
Apr 16, 4:23 AM EDTSpecial Weather StatementPHICaroline, Cecil, Kent, Queen Anne's, Talbot37 min
Apr 16, 4:29 AM EDTFreeze WatchLWXCarroll, Frederick, Washington12 hr
Apr 16, 4:37 AM EDTFlash Flood WarningLWXMontgomery2 hr
Apr 16, 4:38 AM EDTAreal Flood AdvisoryPHICaroline, Cecil, Kent, Queen Anne's, Talbot4 hr
Apr 16, 4:44 AM EDTSpecial Weather StatementAKQDorchester, Wicomico, Worcester46 min
Apr 16, 4:45 AM EDTCoastal Flood AdvisoryAKQDorchester, Somerset25 hr
Apr 16, 4:55 AM EDTSpecial Weather StatementPHICaroline, Cecil50 min
Apr 16, 5:34 AM EDTAreal Flood AdvisoryPHICecil, Kent4 hr
Apr 16, 5:39 AM EDTSpecial Weather StatementAKQWicomico, Worcester51 min
Apr 16, 6:20 AM EDTAreal Flood WarningLWXAnne Arundel, Baltimore, Carroll, Harford, Howard, Prince George's and 1 more6 hr
Apr 16, 6:35 AM EDTSpecial Weather StatementAKQWorcester40 min
Apr 16, 6:38 AM EDTAreal Flood WarningLWXMontgomery6 hr
Apr 16, 7:34 AM EDTCoastal Flood WarningLWXAnne Arundel3 hr
Apr 16, 7:34 AM EDTCoastal Flood AdvisoryLWXAnne Arundel8 hr
Apr 16, 12:04 PM EDTSpecial Weather StatementPHICecil26 min
Apr 16, 12:42 PM EDTAreal Flood WarningLWXMontgomery105 min
Apr 16, 1:09 PM EDTCoastal Flood WarningLWXAnne Arundel, Saint Mary's6 hr
Apr 16, 1:09 PM EDTCoastal Flood AdvisoryLWXSaint Mary's17 hr
Apr 16, 1:18 PM EDTCoastal Flood AdvisoryPHICecil, Kent13 hr
Apr 16, 10:17 PM EDTRiver Flood WarningLWXWashington32 hr
Apr 16, 10:27 PM EDTRiver Flood WatchLWXFrederick11 hr
Apr 17, 4:08 AM EDTFreeze WatchLWXBaltimore, Carroll, Frederick, Harford, Howard, Montgomery and 1 more9 hr
Apr 17, 1:24 PM EDTFreeze WarningLWXBaltimore, Carroll, Frederick, Harford, Howard, Montgomery and 2 more19 hr
Apr 17, 2:36 PM EDTFreeze WarningPHICecil17 hr
Apr 18, 6:17 AM EDTRiver Flood WarningLWXMontgomery8 hr
Apr 18, 2:22 PM EDTWind AdvisoryLWXAllegany27 hr
Apr 19, 4:27 AM EDTFreeze WatchLWXBaltimore, Carroll, Frederick, Harford, Howard, Montgomery and 1 more10 hr
Apr 19, 2:22 PM EDTFreeze WarningLWXBaltimore, Carroll, Frederick, Harford, Howard, Montgomery and 1 more18 hr
Apr 19, 3:04 PM EDTFreeze WarningPHICecil17 hr
Apr 20, 4:16 AM EDTFreeze WatchLWXBaltimore, Carroll, Frederick, Harford, Washington10 hr
Apr 20, 2:28 PM EDTFreeze WarningLWXBaltimore, Carroll, Frederick, Harford, Howard, Montgomery and 1 more19 hr
Apr 20, 3:35 PM EDTFrost AdvisoryPHICaroline, Kent, Queen Anne's16 hr
Apr 20, 3:35 PM EDTFreeze WarningPHICecil16 hr
Apr 24, 9:34 PM EDTCoastal Flood AdvisoryLWXSaint Mary's16 hr
Apr 25, 2:18 PM EDTCoastal Flood AdvisoryLWXSaint Mary's12 hr
Apr 25, 7:28 PM EDTAreal Flood AdvisoryPHICaroline5 hr
Apr 25, 9:53 PM EDTSpecial Weather StatementAKQWicomico, Worcester37 min
Apr 25, 10:34 PM EDTSpecial Weather StatementAKQWorcester41 min
Apr 27, 3:34 AM EDTSpecial Weather StatementAKQDorchester41 min
Apr 28, 5:16 AM EDTDense Fog AdvisoryPHICecil, Kent4 hr
Apr 28, 5:21 AM EDTDense Fog AdvisoryLWXBaltimore, Carroll, Frederick, Harford, Howard, Montgomery and 1 more5 hr
Apr 28, 8:12 PM EDTSpecial Weather StatementPHICecil33 min
Apr 28, 9:35 PM EDTSpecial Weather StatementPHIQueen Anne's25 min
Apr 29, 3:15 PM EDTFrost AdvisoryLWXFrederick, Montgomery, Washington17 hr
Apr 29, 3:18 PM EDTFire Weather WatchLWXAllegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 8 more12 hr
Apr 29, 3:32 PM EDTFire Weather WatchPHICaroline, Cecil, Kent, Queen Anne's, Talbot12 hr
Apr 29, 4:06 PM EDTFire Weather WatchAKQDorchester, Somerset, Wicomico, Worcester13 hr
Apr 30, 3:31 AM EDTRed Flag WarningPHICaroline, Cecil, Kent, Queen Anne's, Talbot16 hr
Apr 30, 3:32 AM EDTRed Flag WarningLWXAllegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 8 more16 hr
Apr 30, 5:01 AM EDTRed Flag WarningAKQDorchester, Somerset, Wicomico, Worcester15 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 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.