Alert archive / Maryland / 2023
Weather alerts in Maryland, August 2023
137 weather alerts in August 2023, 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 2023. Tap one for its archive.
- Alerts
- 137
- Warnings
- 76
- Watches
- 8
- Advisories
- 17
- Busiest day
- August 7, 202347 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 |
|---|---|---|---|---|
| Aug 1, 12:25 AM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Saint Mary's | 8 hr |
| Aug 3, 2:25 PM EDT | Coastal Flood Statement | AKQ | Dorchester, Somerset, Wicomico | 18 hr |
| Aug 3, 9:22 PM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Saint Mary's | 15 hr |
| Aug 4, 2:39 PM EDT | Coastal Flood Statement | AKQ | Dorchester | 13 hr |
| Aug 4, 3:38 PM EDT | Coastal Flood Advisory | LWX | Saint Mary's | 15 hr |
| Aug 4, 6:51 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick | 39 min |
| Aug 4, 7:58 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 36 min |
| Aug 5, 5:42 AM EDT | Dense Fog Advisory | LWX | Baltimore, Carroll, Frederick, Washington | 3 hr |
| Aug 6, 2:39 PM EDT | Flood Watch | LWX | Anne Arundel, Baltimore, Harford, Howard, Montgomery, Prince George's and 1 more | 9 hr |
| Aug 6, 8:52 PM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Harford | 15 hr |
| Aug 7, 3:02 AM EDT | Coastal Flood Advisory | LWX | Harford | 14 hr |
| Aug 7, 3:02 AM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Harford, Saint Mary's | 28 hr |
| Aug 7, 8:18 AM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Carroll, Charles, Frederick, Harford and 5 more | 117 min |
| Aug 7, 12:14 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Carroll, Charles, Frederick and 5 more | 2 hr |
| Aug 7, 12:54 PM EDT | Severe Thunderstorm Warning | LWX | Allegany, Washington | 51 min |
| Aug 7, 1:14 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 46 min |
| Aug 7, 1:19 PM EDT | Severe Thunderstorm Warning | LWX | Garrett | 56 min |
| Aug 7, 1:20 PM EDT | Tornado Watch | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Cecil and 14 more | 11 hr |
| Aug 7, 1:26 PM EDT | Tornado Warning | LWX | Garrett | 34 min |
| Aug 7, 1:35 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 40 min |
| Aug 7, 1:56 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick, Washington | 49 min |
| Aug 7, 1:58 PM EDT | Severe Thunderstorm Warning | LWX | Allegany, Garrett | 62 min |
| Aug 7, 2:11 PM EDT | Severe Thunderstorm Warning | LWX | Allegany, Garrett | 20 min |
| Aug 7, 2:13 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 47 min |
| Aug 7, 2:29 PM EDT | Severe Thunderstorm Warning | LWX | Allegany, Washington | 46 min |
| Aug 7, 2:31 PM EDT | Mesoscale Discussion | SPC | Caroline, Cecil, Wicomico, Worcester | 59 min |
| Aug 7, 2:41 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 34 min |
| Aug 7, 2:55 PM EDT | Severe Thunderstorm Warning | LWX | Garrett | 65 min |
| Aug 7, 2:55 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 23 min |
| Aug 7, 3:07 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 38 min |
| Aug 7, 3:13 PM EDT | Tornado Watch | SPC | Caroline, Kent, Queen Anne's, Talbot | 8 hr |
| Aug 7, 3:17 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 23 min |
| Aug 7, 3:17 PM EDT | Severe Thunderstorm Warning | LWX | Allegany, Washington | 58 min |
| Aug 7, 3:17 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 7 more | 88 min |
| Aug 7, 3:34 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick, Washington | 56 min |
| Aug 7, 3:49 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 41 min |
| Aug 7, 4:25 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Frederick, Howard, Montgomery, Washington | 50 min |
| Aug 7, 4:38 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Frederick, Howard, Montgomery | 37 min |
| Aug 7, 4:40 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Carroll, Charles, Frederick, Howard and 4 more | 95 min |
| Aug 7, 4:52 PM EDT | Tornado Warning | LWX | Carroll | 8 min |
| Aug 7, 5:01 PM EDT | Mesoscale Discussion | SPC | Caroline, Cecil | 89 min |
| Aug 7, 5:06 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Carroll, Cecil, Harford, Howard and 3 more | 39 min |
| Aug 7, 5:11 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Howard, Montgomery, Prince George's | 34 min |
| Aug 7, 5:35 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Cecil, Harford | 55 min |
| Aug 7, 5:37 PM EDT | Severe Thunderstorm Warning | PHI | Kent | 53 min |
| Aug 7, 5:42 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Howard, Montgomery, Prince George's, City of Baltimore | 48 min |
| Aug 7, 5:43 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Charles, Montgomery, Prince George's | 62 min |
| Aug 7, 5:57 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 63 min |
| Aug 7, 6:12 PM EDT | Flash Flood Warning | LWX | Baltimore, City of Baltimore | 75 min |
| Aug 7, 6:21 PM EDT | Severe Thunderstorm Warning | PHI | Kent | 69 min |
| Aug 7, 6:52 PM EDT | Areal Flood Advisory | PHI | Caroline, Kent, Queen Anne's, Talbot | 95 min |
| Aug 7, 6:58 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 62 min |
| Aug 7, 7:01 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester | 59 min |
| Aug 7, 7:27 PM EDT | Areal Flood Warning | LWX | Baltimore, City of Baltimore | 45 min |
| Aug 7, 7:56 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Talbot | 49 min |
| Aug 7, 7:59 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester | 61 min |
| Aug 7, 8:22 PM EDT | Severe Thunderstorm Warning | LWX | Saint Mary's | 16 min |
| Aug 7, 8:53 PM EDT | Flash Flood Warning | AKQ | Dorchester | 3 hr |
| Aug 7, 8:59 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester, Somerset, Wicomico | 46 min |
| Aug 7, 9:21 PM EDT | Flash Flood Warning | AKQ | Dorchester | 3 hr |
| Aug 7, 9:32 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Charles, Prince George's, Saint Mary's | 14 min |
| Aug 7, 9:42 PM EDT | Severe Thunderstorm Warning | AKQ | Somerset, Wicomico, Worcester | 48 min |
| Aug 7, 9:58 PM EDT | Flash Flood Warning | AKQ | Wicomico | 3 hr |
| Aug 7, 10:06 PM EDT | Special Weather Statement | AKQ | Wicomico | 39 min |
| Aug 7, 10:17 PM EDT | Tornado Warning | AKQ | Somerset, Wicomico, Worcester | 28 min |
| Aug 7, 10:27 PM EDT | Severe Thunderstorm Warning | AKQ | Wicomico, Worcester | 48 min |
| Aug 7, 10:44 PM EDT | Tornado Warning | AKQ | Worcester | 31 min |
| Aug 7, 10:45 PM EDT | Severe Thunderstorm Warning | AKQ | Somerset, Wicomico, Worcester | 45 min |
| Aug 7, 11:22 PM EDT | Special Weather Statement | AKQ | Worcester | 23 min |
| Aug 7, 11:26 PM EDT | Severe Thunderstorm Warning | AKQ | Worcester | 26 min |
| Aug 7, 11:37 PM EDT | Flash Flood Warning | LWX | Montgomery, Prince George's | 3 hr |
| Aug 8, 12:12 AM EDT | Areal Flood Warning | AKQ | Dorchester | 6 hr |
| Aug 10, 12:25 PM EDT | Severe Thunderstorm Warning | LWX | Cecil, Harford | 35 min |
| Aug 10, 12:39 PM EDT | Special Weather Statement | AKQ | Wicomico, Worcester | 51 min |
| Aug 10, 12:51 PM EDT | Severe Thunderstorm Warning | LWX | Cecil | 39 min |
| Aug 12, 7:31 PM EDT | Mesoscale Discussion | SPC | Allegany, Garrett | 89 min |
| Aug 12, 8:06 PM EDT | Severe Thunderstorm Watch | SPC | Allegany, Garrett, Washington | 4 hr |
| Aug 12, 9:28 PM EDT | Special Weather Statement | CTP | Garrett | 32 min |
| Aug 12, 9:49 PM EDT | Severe Thunderstorm Warning | LWX | Garrett | 41 min |
| Aug 12, 10:12 PM EDT | Mesoscale Discussion | SPC | Allegany, Garrett, Washington | 93 min |
| Aug 12, 10:29 PM EDT | Severe Thunderstorm Warning | LWX | Allegany, Garrett | 31 min |
| Aug 14, 1:55 PM EDT | Flood Watch | LWX | Anne Arundel, Baltimore, Cecil, Harford, Howard, Montgomery and 2 more | 9 hr |
| Aug 14, 1:55 PM EDT | Mesoscale Discussion | SPC | Charles | 2 hr |
| Aug 14, 3:47 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Saint Mary's | 43 min |
| Aug 14, 4:02 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Prince George's | 28 min |
| Aug 14, 4:05 PM EDT | Tornado Warning | LWX | Charles | 25 min |
| Aug 14, 4:14 PM EDT | Flash Flood Warning | LWX | Prince George's | 3 hr |
| Aug 14, 4:25 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery, Prince George's | 35 min |
| Aug 14, 4:31 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Saint Mary's | 28 min |
| Aug 14, 4:40 PM EDT | Special Weather Statement | AKQ | Dorchester | 65 min |
| Aug 14, 4:40 PM EDT | Flash Flood Warning | LWX | Montgomery, Prince George's | 2 hr |
| Aug 14, 4:47 PM EDT | Flash Flood Warning | LWX | Saint Mary's | 2 hr |
| Aug 14, 4:47 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Howard, Montgomery, Prince George's | 43 min |
| Aug 14, 5:16 PM EDT | Special Weather Statement | PHI | Talbot | 44 min |
| Aug 14, 5:20 PM EDT | Special Weather Statement | AKQ | Dorchester | 40 min |
| Aug 14, 5:49 PM EDT | Special Weather Statement | PHI | Kent, Queen Anne's | 26 min |
| Aug 14, 5:55 PM EDT | Special Weather Statement | PHI | Caroline | 35 min |
| Aug 14, 6:10 PM EDT | Special Weather Statement | PHI | Caroline, Kent, Queen Anne's | 35 min |
| Aug 14, 6:13 PM EDT | Severe Thunderstorm Warning | AKQ | Somerset | 47 min |
| Aug 14, 6:23 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 29 min |
| Aug 14, 6:45 PM EDT | Special Weather Statement | AKQ | Wicomico | 45 min |
| Aug 14, 7:09 PM EDT | Areal Flood Warning | LWX | Saint Mary's | 2 hr |
| Aug 14, 8:04 PM EDT | Special Weather Statement | PHI | Caroline | 26 min |
| Aug 14, 8:52 PM EDT | Special Weather Statement | AKQ | Worcester | 38 min |
| Aug 15, 12:29 PM EDT | Flood Watch | LWX | Anne Arundel, Baltimore, Howard, Montgomery, Prince George's, City of Baltimore | 6 hr |
| Aug 15, 1:28 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Cecil, Charles and 13 more | 3 hr |
| Aug 15, 2:08 PM EDT | Severe Thunderstorm Watch | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Cecil, Charles and 13 more | 6 hr |
| Aug 15, 3:40 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's | 50 min |
| Aug 15, 3:51 PM EDT | Special Weather Statement | AKQ | Somerset | 39 min |
| Aug 15, 4:15 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester, Somerset, Wicomico | 45 min |
| Aug 15, 4:56 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester, Wicomico | 32 min |
| Aug 15, 5:00 PM EDT | Severe Thunderstorm Warning | PHI | Caroline | 45 min |
| Aug 15, 5:56 PM EDT | Special Weather Statement | AKQ | Dorchester | 34 min |
| Aug 15, 5:56 PM EDT | Special Weather Statement | PHI | Caroline | 34 min |
| Aug 15, 5:59 PM EDT | Special Weather Statement | AKQ | Caroline | 16 min |
| Aug 15, 6:02 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester | 32 min |
| Aug 17, 10:26 PM EDT | Special Weather Statement | AKQ | Dorchester | 49 min |
| Aug 17, 11:05 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 25 min |
| Aug 18, 2:36 AM EDT | Coastal Flood Advisory | LWX | Saint Mary's | 3 hr |
| Aug 23, 3:02 PM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Saint Mary's | 10 hr |
| Aug 24, 2:53 PM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Harford | 15 hr |
| Aug 25, 2:02 AM EDT | Mesoscale Discussion | SPC | Allegany, Garrett | 118 min |
| Aug 25, 2:58 AM EDT | Severe Thunderstorm Warning | LWX | Garrett | 32 min |
| Aug 25, 6:36 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 24 min |
| Aug 25, 6:59 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 46 min |
| Aug 27, 3:42 PM EDT | Beach Hazards Statement | AKQ | Worcester | 28 hr |
| Aug 27, 11:36 PM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Saint Mary's | 8 hr |
| Aug 28, 3:40 PM EDT | Beach Hazards Statement | AKQ | Worcester | 7 days |
| Aug 28, 3:40 PM EDT | Coastal Flood Statement | AKQ | Dorchester | 12 hr |
| Aug 28, 10:48 PM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Saint Mary's | 10 hr |
| Aug 29, 4:49 AM EDT | Flood Watch | LWX | Allegany | 19 hr |
| Aug 29, 5:03 AM EDT | Coastal Flood Statement | AKQ | Dorchester | 22 hr |
| Aug 29, 5:03 AM EDT | Coastal Flood Advisory | AKQ | Worcester | 17 hr |
| Aug 29, 10:32 PM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Saint Mary's | 11 hr |
| Aug 30, 9:43 PM EDT | Coastal Flood Advisory | AKQ | Worcester | 41 hr |
| Aug 31, 12:43 AM EDT | Coastal Flood Advisory | LWX | Saint Mary's | 4 hr |
| Aug 31, 5:54 AM EDT | Coastal Flood Statement | AKQ | Dorchester, Somerset, Wicomico | 62 hr |
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 | 60 |
| Tornado Warning | 5 |
| Severe Thunderstorm Watch | 2 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 11 |
| Special Weather Statement | 18 |
| Flooding | |
| Areal Flood Warning | 3 |
| Flash Flood Warning | 8 |
| Flood Watch | 4 |
| Areal Flood Advisory | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
| Coast and beach | |
| Coastal Flood Advisory | 15 |
| Beach Hazards Statement | 2 |
| Coastal Flood Statement | 5 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Anne Arundel County23
- Washington County22
- Montgomery County22
- Dorchester County21
- Prince George's County21
- Saint Mary's County20
- Baltimore County18
- Wicomico County17
- Worcester County17
- Caroline County17
- Howard County16
- Frederick County15
- Carroll County14
- Harford County14
- City of Baltimore14
- Allegany County14
- Garrett County14
- Charles County13
- Somerset County12
- Kent County12
- Cecil County10
- Queen Anne's County10
- Talbot County9
- Calvert County8
Nearby
Alerts in force nowTornadoes on recordThe radar archive20222024
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.