Alert archive / Maryland / 2024
Weather alerts in Maryland, September 2024
51 weather alerts in September 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 September 2024. Tap one for its archive.
- Alerts
- 51
- Warnings
- 12
- Watches
- 4
- Advisories
- 26
- Busiest day
- September 26, 202410 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.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 3, 7:53 PM EDT | Beach Hazards Statement | AKQ | Worcester | 3 days |
| Sep 4, 3:18 AM EDT | Coastal Flood Advisory | LWX | Anne Arundel | 7 hr |
| Sep 6, 6:34 PM EDT | Coastal Flood Advisory | LWX | Anne Arundel | 15 hr |
| Sep 6, 9:06 PM EDT | Beach Hazards Statement | AKQ | Worcester | 47 hr |
| Sep 8, 12:42 PM EDT | Frost Advisory | LWX | Allegany | 20 hr |
| Sep 12, 4:15 AM EDT | Dense Fog Advisory | PHI | Caroline, Kent, Queen Anne's, Talbot | 6 hr |
| Sep 14, 4:32 AM EDT | Beach Hazards Statement | AKQ | Worcester | 5 days |
| Sep 14, 5:37 AM EDT | Dense Fog Advisory | LWX | Carroll, Frederick | 3 hr |
| Sep 15, 4:22 AM EDT | Coastal Flood Advisory | AKQ | Dorchester, Somerset, Wicomico | 58 hr |
| Sep 15, 1:57 PM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Calvert, Charles | 52 hr |
| Sep 16, 4:09 AM EDT | Coastal Flood Advisory | LWX | Anne Arundel | 41 hr |
| Sep 16, 2:48 PM EDT | Coastal Flood Advisory | LWX | Charles | 27 hr |
| Sep 17, 2:45 PM EDT | Coastal Flood Statement | AKQ | Dorchester, Somerset, Wicomico | 26 hr |
| Sep 18, 12:09 AM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Baltimore, Calvert, Cecil, Charles, Harford and 2 more | 9 days |
| Sep 18, 4:45 AM EDT | Coastal Flood Advisory | PHI | Caroline, Queen Anne's, Talbot | 6 days |
| Sep 18, 1:49 PM EDT | Coastal Flood Advisory | LWX | Anne Arundel | 71 hr |
| Sep 18, 4:26 PM EDT | Coastal Flood Advisory | AKQ | Dorchester, Somerset, Wicomico, Worcester | 6 days |
| Sep 18, 8:08 PM EDT | Beach Hazards Statement | AKQ | Worcester | 10 days |
| Sep 19, 11:19 AM EDT | Coastal Flood Watch | LWX | Anne Arundel | 40 hr |
| Sep 20, 3:35 AM EDT | Coastal Flood Watch | AKQ | Dorchester, Somerset, Wicomico | 36 hr |
| Sep 20, 10:26 AM EDT | Coastal Flood Advisory | PHI | Caroline, Kent, Queen Anne's, Talbot | 5 days |
| Sep 21, 3:41 AM EDT | Coastal Flood Warning | LWX | Anne Arundel, Saint Mary's | 5 days |
| Sep 21, 3:56 AM EDT | Coastal Flood Warning | AKQ | Dorchester, Somerset, Wicomico | 4 days |
| Sep 21, 2:37 PM EDT | Mesoscale Discussion | SPC | Allegany, Garrett, Washington | 2 hr |
| Sep 22, 12:19 AM EDT | Flood Watch | LWX | Anne Arundel, Baltimore, Harford, Howard, City of Baltimore | 3 hr |
| Sep 22, 1:07 AM EDT | Severe Thunderstorm Warning | LWX | Carroll | 38 min |
| Sep 22, 1:37 AM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Frederick | 38 min |
| Sep 22, 2:08 AM EDT | Severe Thunderstorm Warning | LWX | Carroll, Howard, Montgomery | 37 min |
| Sep 22, 2:17 AM EDT | Flash Flood Warning | LWX | Anne Arundel, Baltimore, City of Baltimore | 67 min |
| Sep 22, 2:47 AM EDT | Dense Fog Advisory | LWX | Allegany | 7 hr |
| Sep 24, 6:50 PM EDT | Dense Fog Advisory | LWX | Allegany | 13 hr |
| Sep 25, 2:53 AM EDT | Coastal Flood Advisory | AKQ | Dorchester, Somerset, Wicomico | 23 hr |
| Sep 26, 3:19 AM EDT | Coastal Flood Advisory | AKQ | Dorchester, Somerset, Wicomico | 9 days |
| Sep 26, 4:25 AM EDT | Coastal Flood Watch | LWX | Anne Arundel | 33 hr |
| Sep 26, 4:25 AM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Baltimore, Calvert, Charles, Harford, City of Baltimore | 23 hr |
| Sep 26, 7:40 AM EDT | Flash Flood Warning | LWX | Anne Arundel, Baltimore, Howard, Montgomery, Prince George's | 91 min |
| Sep 26, 8:25 AM EDT | Flash Flood Warning | LWX | Anne Arundel, Baltimore, City of Baltimore | 87 min |
| Sep 26, 9:11 AM EDT | Areal Flood Warning | LWX | Anne Arundel, Baltimore, Howard, Prince George's | 84 min |
| Sep 26, 9:52 AM EDT | Areal Flood Warning | LWX | Anne Arundel, Baltimore, City of Baltimore | 44 min |
| Sep 26, 1:43 PM EDT | Wind Advisory | LWX | Allegany | 31 hr |
| Sep 26, 2:53 PM EDT | Coastal Flood Statement | AKQ | Somerset | 10 hr |
| Sep 26, 3:53 PM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Baltimore, Calvert, Charles, Harford, Saint Mary's and 1 more | 8 days |
| Sep 27, 1:45 PM EDT | Coastal Flood Warning | LWX | Anne Arundel | 15 hr |
| Sep 27, 11:49 PM EDT | Areal Flood Advisory | AKQ | Worcester | 2 hr |
| Sep 28, 1:45 AM EDT | Coastal Flood Advisory | AKQ | Worcester | 7 days |
| Sep 28, 4:58 AM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Charles | 6 days |
| Sep 29, 2:05 AM EDT | Coastal Flood Statement | AKQ | Worcester | 24 hr |
| Sep 30, 3:19 AM EDT | Coastal Flood Advisory | LWX | Harford | 5 days |
| Sep 30, 6:17 AM EDT | Beach Hazards Statement | AKQ | Worcester | 4 days |
| Sep 30, 2:07 PM EDT | Coastal Flood Warning | LWX | Anne Arundel | 23 hr |
| Sep 30, 2:07 PM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Harford | 4 days |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 3 |
| Mesoscale Discussion | 1 |
| Flooding | |
| Areal Flood Warning | 2 |
| Flash Flood Warning | 3 |
| Flood Watch | 1 |
| Areal Flood Advisory | 1 |
| Cold | |
| Frost Advisory | 1 |
| Wind and dust | |
| Wind Advisory | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 4 |
| Coast and beach | |
| Coastal Flood Warning | 4 |
| Coastal Flood Watch | 3 |
| Coastal Flood Advisory | 19 |
| Beach Hazards Statement | 5 |
| Coastal Flood Statement | 3 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Anne Arundel County21
- Baltimore County10
- Worcester County9
- Somerset County8
- Dorchester County7
- Wicomico County7
- City of Baltimore7
- Charles County6
- Harford County6
- Allegany County5
- Carroll County4
- Calvert County4
- Howard County4
- Caroline County3
- Queen Anne's County3
- Talbot County3
- Saint Mary's County3
- Kent County2
- Frederick County2
- Montgomery County2
- Prince George's County2
- Cecil County1
- Garrett County1
- Washington County1
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.