Alert archive / Maryland / 2024
Weather alerts in Maryland, July 2024
153 weather alerts in July 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 July 2024. Tap one for its archive.
- Alerts
- 153
- Warnings
- 86
- Watches
- 11
- Advisories
- 30
- Busiest day
- July 17, 202425 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 |
|---|---|---|---|---|
| Jun 30, 8:02 PM EDT | Special Weather Statement | AKQ | Dorchester | 43 min |
| Jun 30, 8:05 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Charles, Prince George's, Saint Mary's | 55 min |
| Jun 30, 8:08 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester | 35 min |
| Jun 30, 8:10 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Calvert, Caroline, Charles, Dorchester, Kent and 8 more | 95 min |
| Jun 30, 8:13 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Prince George's, Saint Mary's | 32 min |
| Jun 30, 8:35 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Charles, Prince George's, Saint Mary's | 25 min |
| Jun 30, 8:58 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Charles, Saint Mary's | 37 min |
| Jun 30, 11:31 PM EDT | Special Weather Statement | AKQ | Dorchester | 29 min |
| Jun 30, 11:43 PM EDT | Severe Thunderstorm Warning | AKQ | Worcester | 32 min |
| Jul 3, 1:57 PM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Harford | 21 hr |
| Jul 3, 2:25 PM EDT | Beach Hazards Statement | AKQ | Worcester | 30 hr |
| Jul 3, 3:46 PM EDT | Heat Advisory | LWX | Anne Arundel, Baltimore, Charles, Howard, Montgomery, Prince George's and 1 more | 28 hr |
| Jul 4, 3:34 AM EDT | Heat Advisory | PHI | Caroline, Kent, Queen Anne's, Talbot | 64 hr |
| Jul 4, 3:52 AM EDT | Heat Advisory | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Cecil, Charles and 8 more | 40 hr |
| Jul 4, 3:28 PM EDT | Heat Advisory | AKQ | Dorchester, Somerset, Wicomico, Worcester | 29 hr |
| Jul 5, 3:52 AM EDT | Excessive Heat Warning | LWX | Calvert, Charles, Saint Mary's | 16 hr |
| Jul 5, 3:01 PM EDT | Heat Advisory | AKQ | Dorchester, Somerset, Wicomico, Worcester | 29 hr |
| Jul 5, 11:48 PM EDT | Heat Advisory | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Cecil, Charles and 6 more | 20 hr |
| Jul 6, 3:05 AM EDT | Excessive Heat Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 17 hr |
| Jul 6, 3:08 AM EDT | Excessive Heat Warning | AKQ | Dorchester, Somerset, Wicomico, Worcester | 17 hr |
| Jul 6, 3:54 AM EDT | Excessive Heat Warning | LWX | Anne Arundel, Baltimore, Calvert, Saint Mary's, City of Baltimore | 16 hr |
| Jul 6, 4:12 AM EDT | Coastal Flood Advisory | LWX | Anne Arundel | 4 hr |
| Jul 7, 2:42 PM EDT | Heat Advisory | PHI | Caroline, Kent, Queen Anne's, Talbot | 3 days |
| Jul 7, 3:21 PM EDT | Heat Advisory | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Cecil, Charles and 7 more | 29 hr |
| Jul 8, 2:25 PM EDT | Heat Advisory | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Cecil, Charles and 8 more | 30 hr |
| Jul 8, 2:32 PM EDT | Heat Advisory | AKQ | Dorchester, Somerset, Wicomico, Worcester | 29 hr |
| Jul 9, 4:15 AM EDT | Heat Advisory | LWX | Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Cecil and 9 more | 39 hr |
| Jul 9, 1:08 PM EDT | Excessive Heat Warning | LWX | Anne Arundel, Baltimore, Calvert, Charles, Howard, Montgomery and 3 more | 7 hr |
| Jul 9, 3:27 PM EDT | Heat Advisory | AKQ | Dorchester, Somerset, Wicomico | 29 hr |
| Jul 9, 3:33 PM EDT | Flash Flood Warning | LWX | Anne Arundel, Baltimore, City of Baltimore | 72 min |
| Jul 10, 4:59 AM EDT | Excessive Heat Warning | LWX | Anne Arundel, Baltimore, Calvert, Charles, Howard, Montgomery and 3 more | 15 hr |
| Jul 10, 12:52 PM EDT | Mesoscale Discussion | SPC | Baltimore, Carroll, Charles, Frederick, Howard, Montgomery and 2 more | 113 min |
| Jul 10, 1:37 PM EDT | Severe Thunderstorm Watch | SPC | Allegany, Anne Arundel, Baltimore, Carroll, Cecil, Charles and 7 more | 8 hr |
| Jul 10, 1:56 PM EDT | Coastal Flood Advisory | LWX | Anne Arundel | 10 hr |
| Jul 10, 4:22 PM EDT | Mesoscale Discussion | SPC | Baltimore, Carroll, Charles, Frederick, Harford, Howard and 4 more | 113 min |
| Jul 10, 7:04 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 41 min |
| Jul 10, 7:17 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 43 min |
| Jul 10, 7:21 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 24 min |
| Jul 10, 7:53 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Prince George's | 41 min |
| Jul 11, 12:34 AM EDT | Coastal Flood Advisory | LWX | Harford | 3 hr |
| Jul 11, 2:43 PM EDT | Flood Watch | AKQ | Dorchester | 33 hr |
| Jul 11, 2:43 PM EDT | Flood Watch | PHI | Caroline, Kent, Queen Anne's, Talbot | 43 hr |
| Jul 11, 3:01 PM EDT | Flood Watch | LWX | Anne Arundel, Baltimore, Calvert, Cecil, Charles, Harford and 2 more | 42 hr |
| Jul 12, 3:37 AM EDT | Beach Hazards Statement | AKQ | Worcester | 16 hr |
| Jul 12, 8:32 AM EDT | Flash Flood Warning | AKQ | Dorchester | 5 hr |
| Jul 12, 9:05 AM EDT | Flash Flood Warning | AKQ | Dorchester | 5 hr |
| Jul 12, 11:53 AM EDT | Flash Flood Warning | AKQ | Dorchester, Somerset, Wicomico | 4 hr |
| Jul 12, 12:59 PM EDT | Areal Flood Warning | PHI | Caroline | 6 hr |
| Jul 12, 1:04 PM EDT | Areal Flood Warning | AKQ | Dorchester | 3 hr |
| Jul 12, 1:49 PM EDT | Areal Flood Warning | AKQ | Dorchester | 3 hr |
| Jul 12, 2:14 PM EDT | Special Weather Statement | AKQ | Wicomico | 46 min |
| Jul 12, 2:37 PM EDT | Flash Flood Warning | AKQ | Somerset, Wicomico | 3 hr |
| Jul 12, 3:37 PM EDT | Excessive Heat Watch | PHI | Caroline, Kent, Queen Anne's, Talbot | 72 hr |
| Jul 13, 3:52 AM EDT | Areal Flood Warning | PHI | Caroline, Talbot | 6 hr |
| Jul 13, 1:39 PM EDT | Excessive Heat Watch | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Cecil, Charles and 8 more | 23 hr |
| Jul 13, 5:09 PM EDT | Areal Flood Advisory | AKQ | Dorchester, Wicomico | 3 hr |
| Jul 13, 5:46 PM EDT | Flash Flood Warning | AKQ | Dorchester, Wicomico | 3 hr |
| Jul 14, 9:33 AM EDT | Excessive Heat Watch | LWX | Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Cecil and 9 more | 27 hr |
| Jul 14, 12:56 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Cecil, Charles and 10 more | 3 hr |
| Jul 14, 12:59 PM EDT | Excessive Heat Warning | LWX | Anne Arundel, Baltimore, Calvert, Cecil, Charles, Harford and 6 more | 31 hr |
| Jul 14, 12:59 PM EDT | Heat Advisory | LWX | Allegany, Carroll, Frederick, Howard, Montgomery | 31 hr |
| Jul 14, 2:45 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 45 min |
| Jul 14, 3:03 PM EDT | Excessive Heat Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 3 days |
| Jul 14, 3:17 PM EDT | Heat Advisory | AKQ | Dorchester, Somerset, Wicomico, Worcester | 29 hr |
| Jul 14, 3:29 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 31 min |
| Jul 14, 4:01 PM EDT | Severe Thunderstorm Warning | PHI | Queen Anne's, Talbot | 44 min |
| Jul 14, 4:31 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 44 min |
| Jul 14, 4:44 PM EDT | Special Weather Statement | AKQ | Dorchester | 46 min |
| Jul 15, 12:55 PM EDT | Excessive Heat Warning | LWX | Anne Arundel, Baltimore, Calvert, Cecil, Charles, Harford and 6 more | 31 hr |
| Jul 15, 12:55 PM EDT | Heat Advisory | LWX | Allegany, Carroll, Frederick, Howard, Montgomery | 31 hr |
| Jul 15, 3:06 PM EDT | Heat Advisory | AKQ | Dorchester, Somerset, Wicomico, Worcester | 29 hr |
| Jul 15, 3:41 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Carroll, Cecil, Charles, Frederick and 7 more | 2 hr |
| Jul 15, 4:40 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 50 min |
| Jul 15, 4:57 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 33 min |
| Jul 15, 5:06 PM EDT | Severe Thunderstorm Warning | LWX | Carroll | 39 min |
| Jul 15, 5:14 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery, Prince George's | 46 min |
| Jul 15, 5:29 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll | 31 min |
| Jul 16, 11:44 AM EDT | Heat Advisory | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Cecil, Charles and 8 more | 32 hr |
| Jul 16, 2:35 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Carroll, Cecil, Frederick, Harford and 5 more | 115 min |
| Jul 16, 2:36 PM EDT | Heat Advisory | AKQ | Dorchester, Somerset, Wicomico, Worcester | 29 hr |
| Jul 16, 3:36 PM EDT | Severe Thunderstorm Watch | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 10 more | 9 hr |
| Jul 16, 6:20 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Carroll, Cecil, Charles, Frederick and 6 more | 115 min |
| Jul 16, 7:52 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Harford | 53 min |
| Jul 16, 8:14 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 31 min |
| Jul 16, 8:19 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Carroll, Cecil, Frederick, Harford and 6 more | 116 min |
| Jul 16, 8:27 PM EDT | Severe Thunderstorm Warning | LWX | Cecil, Harford | 33 min |
| Jul 16, 8:58 PM EDT | Severe Thunderstorm Warning | LWX | Cecil, Harford | 62 min |
| Jul 16, 9:23 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Howard, City of Baltimore | 52 min |
| Jul 16, 10:02 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Prince George's | 28 min |
| Jul 16, 10:04 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Cecil, Harford | 41 min |
| Jul 16, 10:17 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 58 min |
| Jul 16, 10:18 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Caroline, Kent, Queen Anne's, Talbot | 87 min |
| Jul 16, 11:08 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's, Talbot | 67 min |
| Jul 17, 2:59 AM EDT | Flood Watch | LWX | Anne Arundel, Baltimore, Howard, Montgomery, Prince George's, City of Baltimore | 17 hr |
| Jul 17, 2:11 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 14 more | 79 min |
| Jul 17, 2:38 PM EDT | Severe Thunderstorm Watch | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 15 more | 7 hr |
| Jul 17, 4:26 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Dorchester and 10 more | 94 min |
| Jul 17, 4:52 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, City of Baltimore | 23 min |
| Jul 17, 5:30 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Montgomery, Prince George's | 30 min |
| Jul 17, 5:56 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford, City of Baltimore | 34 min |
| Jul 17, 6:04 PM EDT | Flash Flood Warning | LWX | Baltimore, City of Baltimore | 88 min |
| Jul 17, 6:30 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Prince George's | 45 min |
| Jul 17, 6:47 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Saint Mary's | 43 min |
| Jul 17, 7:02 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Prince George's | 43 min |
| Jul 17, 7:56 PM EDT | Severe Thunderstorm Warning | PHI | Kent | 44 min |
| Jul 17, 7:57 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Calvert, Caroline, Cecil, Charles, Dorchester and 7 more | 2 hr |
| Jul 17, 7:58 PM EDT | Severe Thunderstorm Warning | LWX | Cecil, Harford | 32 min |
| Jul 17, 7:58 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's | 62 min |
| Jul 17, 8:11 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's, Talbot | 49 min |
| Jul 17, 8:24 PM EDT | Special Weather Statement | AKQ | Dorchester | 81 min |
| Jul 17, 8:50 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester, Wicomico | 40 min |
| Jul 17, 9:10 PM EDT | Severe Thunderstorm Warning | PHI | Caroline | 21 min |
| Jul 18, 12:24 PM EDT | Flash Flood Warning | AKQ | Worcester | 3 hr |
| Jul 18, 1:51 PM EDT | Areal Flood Advisory | AKQ | Worcester | 114 min |
| Jul 18, 2:19 PM EDT | Flash Flood Warning | AKQ | Worcester | 3 hr |
| Jul 20, 6:30 PM EDT | Severe Thunderstorm Warning | LWX | Allegany, Washington | 45 min |
| Jul 21, 8:01 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 44 min |
| Jul 22, 4:31 PM EDT | Areal Flood Advisory | AKQ | Dorchester | 4 hr |
| Jul 22, 5:04 PM EDT | Special Weather Statement | AKQ | Wicomico | 41 min |
| Jul 22, 5:47 PM EDT | Special Weather Statement | AKQ | Wicomico | 43 min |
| Jul 22, 7:22 PM EDT | Areal Flood Advisory | AKQ | Dorchester, Wicomico | 2 hr |
| Jul 22, 7:30 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 26 min |
| Jul 22, 8:24 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 51 min |
| Jul 22, 8:37 PM EDT | Flash Flood Warning | LWX | Washington | 68 min |
| Jul 22, 9:04 PM EDT | Flash Flood Warning | LWX | Washington | 109 min |
| Jul 23, 1:36 PM EDT | Flood Watch | LWX | Charles, Prince George's | 9 hr |
| Jul 23, 3:57 PM EDT | Mesoscale Discussion | SPC | Somerset | 3 hr |
| Jul 23, 6:15 PM EDT | Special Weather Statement | AKQ | Somerset, Wicomico, Worcester | 75 min |
| Jul 25, 3:01 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Calvert, Caroline, Charles, Dorchester, Howard and 7 more | 89 min |
| Jul 29, 5:01 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 29 min |
| Jul 29, 6:00 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery, Prince George's | 30 min |
| Jul 29, 6:56 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Howard | 34 min |
| Jul 29, 7:09 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Prince George's | 21 min |
| Jul 29, 7:29 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, City of Baltimore | 46 min |
| Jul 29, 8:50 PM EDT | Severe Thunderstorm Warning | LWX | Cecil | 25 min |
| Jul 29, 11:38 PM EDT | Coastal Flood Advisory | LWX | Anne Arundel | 3 hr |
| Jul 30, 12:39 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 10 more | 2 hr |
| Jul 31, 3:56 AM EDT | Heat Advisory | PHI | Caroline, Kent, Queen Anne's, Talbot | 64 hr |
| Jul 31, 3:06 PM EDT | Heat Advisory | AKQ | Dorchester, Somerset, Wicomico, Worcester | 29 hr |
| Jul 31, 3:12 PM EDT | Severe Thunderstorm Warning | LWX | Cecil, Harford | 48 min |
| Jul 31, 3:25 PM EDT | Heat Advisory | LWX | Anne Arundel, Baltimore, Calvert, Cecil, Charles, Harford and 5 more | 29 hr |
| Jul 31, 4:00 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 17 min |
| Jul 31, 4:29 PM EDT | Severe Thunderstorm Warning | PHI | Queen Anne's, Talbot | 31 min |
| Jul 31, 4:30 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery, Prince George's | 60 min |
| Jul 31, 5:01 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery, Prince George's | 32 min |
| Jul 31, 5:26 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 49 min |
| Jul 31, 5:49 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Prince George's | 41 min |
| Jul 31, 6:24 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Prince George's | 36 min |
| Jul 31, 6:29 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Prince George's | 46 min |
| Jul 31, 6:34 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Charles, Prince George's | 41 min |
| Jul 31, 7:19 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Saint Mary's | 41 min |
| Jul 31, 7:42 PM EDT | Special Weather Statement | AKQ | Saint Mary's | 48 min |
| Jul 31, 7:59 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Saint Mary's | 30 min |
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 | 62 |
| Severe Thunderstorm Watch | 3 |
| Mesoscale Discussion | 15 |
| Special Weather Statement | 9 |
| Flooding | |
| Areal Flood Warning | 4 |
| Flash Flood Warning | 11 |
| Flood Watch | 5 |
| Areal Flood Advisory | 4 |
| Heat | |
| Excessive Heat Warning | 9 |
| Excessive Heat Watch | 3 |
| Heat Advisory | 21 |
| Coast and beach | |
| Coastal Flood Advisory | 5 |
| Beach Hazards Statement | 2 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Prince George's County52
- Anne Arundel County48
- Charles County41
- Montgomery County41
- Baltimore County39
- City of Baltimore37
- Calvert County34
- Harford County34
- Howard County33
- Dorchester County32
- Saint Mary's County32
- Cecil County28
- Carroll County25
- Queen Anne's County24
- Kent County23
- Talbot County23
- Wicomico County23
- Caroline County22
- Frederick County22
- Washington County21
- Worcester County17
- Somerset County16
- Allegany County6
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.