Alert archive / Maryland / 2020
Weather alerts in Maryland, August 2020
357 weather alerts in August 2020, 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 2020. Tap one for its archive.
- Alerts
- 357
- Warnings
- 192
- Watches
- 30
- Advisories
- 42
- Busiest day
- August 4, 202049 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, 3:20 PM EDT | Heat Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 29 hr |
| Aug 1, 4:00 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Carroll, Charles, Frederick and 5 more | 2 hr |
| Aug 1, 6:53 PM EDT | Flash Flood Watch | LWX | Montgomery, Prince George's | 7 hr |
| Aug 1, 7:05 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Caroline, Carroll and 15 more | 115 min |
| Aug 1, 7:40 PM EDT | Severe Thunderstorm Warning | LWX | Allegany, Washington | 50 min |
| Aug 1, 8:12 PM EDT | Special Weather Statement | PBZ | Garrett | 48 min |
| Aug 1, 8:29 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 46 min |
| Aug 1, 9:07 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 38 min |
| Aug 1, 9:40 PM EDT | Areal Flood Warning | LWX | Washington | 6 hr |
| Aug 1, 9:54 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 31 min |
| Aug 2, 3:13 AM EDT | Coastal Flood Advisory | LWX | Anne Arundel | 6 hr |
| Aug 2, 3:26 PM EDT | Flash Flood Watch | AKQ | Dorchester, Somerset, Wicomico | 43 hr |
| Aug 2, 3:28 PM EDT | Flash Flood Watch | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 7 more | 45 hr |
| Aug 2, 3:33 PM EDT | Flash Flood Watch | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 48 hr |
| Aug 2, 4:25 PM EDT | Coastal Flood Watch | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 24 hr |
| Aug 2, 4:56 PM EDT | Tropical Storm Watch | LWX | Anne Arundel, Baltimore, Calvert, Charles, Harford, Prince George's and 2 more | 18 hr |
| Aug 2, 5:04 PM EDT | Tropical Storm Watch | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 18 hr |
| Aug 2, 5:19 PM EDT | Coastal Flood Watch | LWX | Anne Arundel, Baltimore, Calvert, Charles, Harford, Prince George's and 2 more | 24 hr |
| Aug 2, 5:44 PM EDT | Tropical Storm Watch | AKQ | Dorchester, Somerset, Wicomico, Worcester | 5 hr |
| Aug 2, 6:41 PM EDT | Coastal Flood Watch | AKQ | Dorchester, Somerset, Wicomico | 23 hr |
| Aug 2, 9:47 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Saint Mary's | 43 min |
| Aug 2, 10:19 PM EDT | Special Weather Statement | AKQ | Dorchester | 41 min |
| Aug 2, 10:51 PM EDT | Tropical Storm Warning | AKQ | Dorchester, Somerset, Wicomico, Worcester | 43 hr |
| Aug 3, 2:13 AM EDT | Severe Thunderstorm Warning | LWX | Calvert, Charles, Prince George's, Saint Mary's | 26 min |
| Aug 3, 2:55 AM EDT | Severe Thunderstorm Warning | LWX | Calvert, Saint Mary's | 23 min |
| Aug 3, 5:08 AM EDT | Tropical Storm Warning | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 39 hr |
| Aug 3, 5:29 AM EDT | Tropical Storm Warning | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Harford and 5 more | 36 hr |
| Aug 3, 12:46 PM EDT | River Flood Watch | LWX | Montgomery | 27 hr |
| Aug 3, 1:42 PM EDT | Special Weather Statement | AKQ | Worcester | 48 min |
| Aug 3, 2:19 PM EDT | Special Weather Statement | AKQ | Worcester | 56 min |
| Aug 3, 2:38 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 18 min |
| Aug 3, 2:55 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Saint Mary's | 65 min |
| Aug 3, 3:39 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Prince George's | 36 min |
| Aug 3, 3:40 PM EDT | Special Weather Statement | PHI | Talbot | 35 min |
| Aug 3, 4:26 PM EDT | Coastal Flood Warning | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 27 hr |
| Aug 3, 4:26 PM EDT | Coastal Flood Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 38 hr |
| Aug 3, 5:15 PM EDT | Coastal Flood Warning | LWX | Anne Arundel, Baltimore, Calvert, Harford, Saint Mary's, City of Baltimore | 29 hr |
| Aug 3, 5:15 PM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Charles, Prince George's, Saint Mary's | 29 hr |
| Aug 3, 5:18 PM EDT | Coastal Flood Warning | AKQ | Dorchester, Somerset, Wicomico | 24 hr |
| Aug 3, 7:34 PM EDT | Beach Hazards Statement | AKQ | Worcester | 24 hr |
| Aug 4, 1:33 AM EDT | Areal Flood Advisory | PHI | Caroline, Kent, Queen Anne's, Talbot | 4 hr |
| Aug 4, 1:41 AM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Charles, Dorchester and 11 more | 3 hr |
| Aug 4, 2:10 AM EDT | Flash Flood Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 4 hr |
| Aug 4, 2:26 AM EDT | Tornado Watch | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Cecil, Dorchester and 9 more | 9 hr |
| Aug 4, 4:01 AM EDT | Tornado Warning | LWX | Saint Mary's | 29 min |
| Aug 4, 4:47 AM EDT | Tornado Warning | LWX | Charles, Saint Mary's | 28 min |
| Aug 4, 5:04 AM EDT | Tornado Warning | AKQ | Somerset, Wicomico, Worcester | 26 min |
| Aug 4, 5:15 AM EDT | Mesoscale Discussion | SPC | Calvert, Caroline, Cecil, Dorchester, Kent, Queen Anne's and 5 more | 3 hr |
| Aug 4, 5:17 AM EDT | Areal Flood Warning | LWX | Saint Mary's | 6 hr |
| Aug 4, 5:17 AM EDT | Areal Flood Advisory | PHI | Cecil, Kent | 4 hr |
| Aug 4, 5:27 AM EDT | Tornado Warning | AKQ | Somerset, Wicomico | 33 min |
| Aug 4, 5:55 AM EDT | Tornado Warning | AKQ | Dorchester, Wicomico | 35 min |
| Aug 4, 6:18 AM EDT | Tornado Warning | LWX | Charles, Saint Mary's | 13 min |
| Aug 4, 6:35 AM EDT | Tornado Warning | AKQ | Dorchester | 11 min |
| Aug 4, 6:41 AM EDT | Tornado Warning | LWX | Saint Mary's | 34 min |
| Aug 4, 6:44 AM EDT | Tornado Warning | LWX | Calvert, Saint Mary's | 31 min |
| Aug 4, 6:55 AM EDT | Tornado Warning | AKQ | Dorchester, Somerset, Wicomico, Worcester | 35 min |
| Aug 4, 6:55 AM EDT | Tornado Warning | PHI | Kent, Queen Anne's | 35 min |
| Aug 4, 6:57 AM EDT | Flash Flood Warning | LWX | Calvert, Saint Mary's | 4 hr |
| Aug 4, 7:04 AM EDT | Tornado Warning | AKQ | Wicomico, Worcester | 26 min |
| Aug 4, 7:17 AM EDT | Tornado Warning | LWX | Anne Arundel, Calvert | 28 min |
| Aug 4, 7:20 AM EDT | Tornado Warning | AKQ | Wicomico, Worcester | 40 min |
| Aug 4, 7:22 AM EDT | Tornado Warning | PHI | Kent, Queen Anne's | 23 min |
| Aug 4, 7:26 AM EDT | Tornado Warning | AKQ | Dorchester, Wicomico | 34 min |
| Aug 4, 7:28 AM EDT | Tornado Warning | AKQ | Wicomico, Worcester | 32 min |
| Aug 4, 7:32 AM EDT | Flash Flood Warning | LWX | Anne Arundel, Calvert, Charles, Prince George's | 4 hr |
| Aug 4, 7:42 AM EDT | Tornado Warning | LWX | Calvert, Prince George's | 8 min |
| Aug 4, 7:50 AM EDT | Flash Flood Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 4 hr |
| Aug 4, 7:53 AM EDT | Tornado Warning | AKQ | Worcester | 37 min |
| Aug 4, 8:13 AM EDT | Tornado Warning | PHI | Kent, Queen Anne's, Talbot | 26 min |
| Aug 4, 8:24 AM EDT | Flash Flood Warning | AKQ | Dorchester | 4 hr |
| Aug 4, 8:27 AM EDT | Tornado Warning | PHI | Caroline, Cecil, Kent, Queen Anne's | 33 min |
| Aug 4, 8:31 AM EDT | Areal Flood Warning | LWX | Montgomery, Prince George's | 9 hr |
| Aug 4, 8:39 AM EDT | Flash Flood Warning | LWX | Anne Arundel, Baltimore, Prince George's, City of Baltimore | 4 hr |
| Aug 4, 8:50 AM EDT | Flash Flood Warning | PHI | Caroline, Cecil, Kent, Queen Anne's | 4 hr |
| Aug 4, 8:56 AM EDT | Tornado Warning | PHI | Cecil | 34 min |
| Aug 4, 9:02 AM EDT | Flash Flood Warning | LWX | Baltimore, Harford | 4 hr |
| Aug 4, 9:23 AM EDT | Flash Flood Warning | PHI | Cecil | 4 hr |
| Aug 4, 9:23 AM EDT | Tornado Warning | PHI | Cecil | 22 min |
| Aug 4, 9:26 AM EDT | Tornado Warning | LWX | Harford | 18 min |
| Aug 4, 9:31 AM EDT | Tornado Warning | LWX | Baltimore | 11 min |
| Aug 4, 9:53 AM EDT | Areal Flood Warning | LWX | Baltimore, Carroll, Howard | 6 hr |
| Aug 4, 10:47 AM EDT | Areal Flood Warning | LWX | Calvert, Saint Mary's | 17 hr |
| Aug 4, 11:20 AM EDT | Areal Flood Warning | LWX | Anne Arundel, Calvert, Charles, Prince George's | 21 hr |
| Aug 4, 12:32 PM EDT | Areal Flood Warning | LWX | Anne Arundel, Baltimore, Prince George's, City of Baltimore | 11 hr |
| Aug 4, 12:53 PM EDT | Areal Flood Warning | LWX | Baltimore, Harford | 4 hr |
| Aug 4, 1:59 PM EDT | Areal Flood Warning | PHI | Cecil | 9 hr |
| Aug 4, 4:32 PM EDT | Areal Flood Warning | LWX | Charles | 43 hr |
| Aug 4, 7:18 PM EDT | Areal Flood Warning | LWX | Charles | 24 hr |
| Aug 4, 8:03 PM EDT | Special Weather Statement | PHI | Caroline, Talbot | 42 min |
| Aug 4, 8:21 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Talbot | 39 min |
| Aug 5, 7:35 AM EDT | Areal Flood Warning | LWX | Prince George's | 115 min |
| Aug 5, 1:12 PM EDT | Special Weather Statement | AKQ | Worcester | 18 min |
| Aug 5, 1:44 PM EDT | Special Weather Statement | AKQ | Worcester | 46 min |
| Aug 5, 5:17 PM EDT | Special Weather Statement | AKQ | Wicomico | 43 min |
| Aug 5, 6:12 PM EDT | Special Weather Statement | AKQ | Worcester | 48 min |
| Aug 5, 10:51 PM EDT | Flash Flood Watch | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 7 more | 25 hr |
| Aug 6, 3:37 AM EDT | Flash Flood Watch | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 44 hr |
| Aug 6, 4:33 AM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 42 min |
| Aug 6, 5:25 AM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 17 min |
| Aug 6, 5:28 AM EDT | Areal Flood Warning | LWX | Calvert, Charles, Prince George's, Saint Mary's | 94 min |
| Aug 6, 5:30 AM EDT | Areal Flood Warning | LWX | Baltimore, City of Baltimore | 5 hr |
| Aug 6, 5:36 AM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 39 min |
| Aug 6, 5:39 AM EDT | Special Weather Statement | AKQ | Dorchester | 51 min |
| Aug 6, 5:56 AM EDT | Mesoscale Discussion | SPC | Caroline, Dorchester, Kent, Queen Anne's, Talbot | 2 hr |
| Aug 6, 6:13 AM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 62 min |
| Aug 6, 6:19 AM EDT | Areal Flood Advisory | PHI | Kent, Queen Anne's | 116 min |
| Aug 6, 6:25 AM EDT | Special Weather Statement | AKQ | Dorchester | 65 min |
| Aug 6, 6:43 AM EDT | Areal Flood Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 3 hr |
| Aug 6, 7:13 AM EDT | Flash Flood Warning | PHI | Cecil, Kent, Queen Anne's | 3 hr |
| Aug 6, 7:19 AM EDT | Special Weather Statement | AKQ | Wicomico | 41 min |
| Aug 6, 8:00 AM EDT | Special Weather Statement | AKQ | Wicomico | 45 min |
| Aug 6, 8:43 AM EDT | Areal Flood Advisory | PHI | Cecil, Kent, Queen Anne's | 87 min |
| Aug 6, 8:45 AM EDT | Special Weather Statement | AKQ | Worcester | 60 min |
| Aug 6, 9:48 AM EDT | Special Weather Statement | AKQ | Worcester | 42 min |
| Aug 6, 10:43 AM EDT | Flash Flood Watch | AKQ | Dorchester, Somerset, Wicomico, Worcester | 15 hr |
| Aug 6, 2:06 PM EDT | Special Weather Statement | AKQ | Worcester | 39 min |
| Aug 6, 2:08 PM EDT | Mesoscale Discussion | SPC | Charles, Saint Mary's | 3 hr |
| Aug 6, 3:02 PM EDT | Special Weather Statement | AKQ | Wicomico | 43 min |
| Aug 6, 3:12 PM EDT | Areal Flood Advisory | AKQ | Wicomico | 3 hr |
| Aug 6, 4:14 PM EDT | Special Weather Statement | AKQ | Dorchester | 46 min |
| Aug 6, 6:56 PM EDT | Areal Flood Warning | LWX | Saint Mary's | 4 hr |
| Aug 6, 7:31 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 30 min |
| Aug 6, 8:56 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Montgomery | 49 min |
| Aug 6, 9:07 PM EDT | Severe Thunderstorm Warning | LWX | Frederick | 38 min |
| Aug 7, 2:43 AM EDT | Flash Flood Watch | AKQ | Dorchester, Somerset, Wicomico, Worcester | 19 hr |
| Aug 7, 3:46 AM EDT | Flash Flood Watch | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 6 more | 21 hr |
| Aug 7, 1:30 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Carroll, Cecil, Frederick, Harford and 7 more | 3 hr |
| Aug 7, 2:08 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 52 min |
| Aug 7, 2:48 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick | 36 min |
| Aug 7, 4:26 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 49 min |
| Aug 7, 4:41 PM EDT | Areal Flood Advisory | PHI | Cecil | 3 hr |
| Aug 7, 4:53 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 27 min |
| Aug 7, 5:03 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 42 min |
| Aug 7, 5:03 PM EDT | Flash Flood Warning | PHI | Cecil | 5 hr |
| Aug 7, 5:28 PM EDT | Areal Flood Warning | LWX | Baltimore, Harford | 4 hr |
| Aug 7, 5:36 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford | 39 min |
| Aug 7, 6:04 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 41 min |
| Aug 7, 6:12 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford | 48 min |
| Aug 7, 6:12 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent, Queen Anne's | 63 min |
| Aug 7, 6:15 PM EDT | Areal Flood Warning | LWX | Harford | 6 hr |
| Aug 7, 6:43 PM EDT | Areal Flood Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's | 4 hr |
| Aug 7, 7:04 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent, Queen Anne's | 41 min |
| Aug 7, 7:39 PM EDT | Areal Flood Warning | LWX | Anne Arundel, Baltimore | 5 hr |
| Aug 7, 7:41 PM EDT | Flash Flood Warning | LWX | Baltimore, Harford | 104 min |
| Aug 7, 7:44 PM EDT | Flash Flood Warning | PHI | Caroline, Kent, Queen Anne's | 4 hr |
| Aug 7, 8:35 PM EDT | Areal Flood Advisory | PHI | Caroline, Talbot | 4 hr |
| Aug 7, 8:40 PM EDT | Flash Flood Warning | LWX | Anne Arundel | 80 min |
| Aug 7, 9:23 PM EDT | Areal Flood Warning | LWX | Anne Arundel | 8 hr |
| Aug 7, 10:19 PM EDT | Areal Flood Warning | LWX | Prince George's | 3 hr |
| Aug 7, 10:27 PM EDT | Special Weather Statement | AKQ | Dorchester | 48 min |
| Aug 7, 11:01 PM EDT | Special Weather Statement | AKQ | Wicomico | 44 min |
| Aug 7, 11:22 PM EDT | Areal Flood Advisory | AKQ | Dorchester, Wicomico | 3 hr |
| Aug 7, 11:46 PM EDT | Special Weather Statement | AKQ | Somerset, Wicomico, Worcester | 44 min |
| Aug 8, 12:07 AM EDT | Areal Flood Advisory | AKQ | Wicomico | 3 hr |
| Aug 8, 12:20 AM EDT | Areal Flood Advisory | AKQ | Somerset, Wicomico, Worcester | 3 hr |
| Aug 8, 12:28 AM EDT | Special Weather Statement | AKQ | Worcester | 32 min |
| Aug 8, 12:49 AM EDT | Flash Flood Warning | AKQ | Somerset, Wicomico, Worcester | 3 hr |
| Aug 8, 1:24 AM EDT | Special Weather Statement | AKQ | Somerset | 51 min |
| Aug 8, 2:24 AM EDT | Flash Flood Warning | AKQ | Somerset | 3 hr |
| Aug 8, 5:58 AM EDT | Areal Flood Warning | LWX | Prince George's | 6 hr |
| Aug 11, 3:19 PM EDT | Flash Flood Watch | LWX | Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 8 more | 52 hr |
| Aug 11, 3:48 PM EDT | Flash Flood Watch | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 28 hr |
| Aug 11, 4:23 PM EDT | Areal Flood Warning | LWX | Baltimore | 3 hr |
| Aug 11, 6:43 PM EDT | Areal Flood Warning | LWX | Baltimore | 100 min |
| Aug 12, 3:13 AM EDT | Flash Flood Watch | AKQ | Dorchester, Wicomico | 19 hr |
| Aug 12, 12:43 PM EDT | Areal Flood Advisory | PHI | Cecil | 3 hr |
| Aug 12, 12:50 PM EDT | Special Weather Statement | AKQ | Wicomico | 40 min |
| Aug 12, 12:55 PM EDT | Areal Flood Advisory | PHI | Cecil, Kent | 3 hr |
| Aug 12, 1:15 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 10 more | 2 hr |
| Aug 12, 1:18 PM EDT | Special Weather Statement | AKQ | Wicomico | 42 min |
| Aug 12, 1:30 PM EDT | Areal Flood Warning | LWX | Baltimore, Howard | 57 min |
| Aug 12, 1:39 PM EDT | Areal Flood Advisory | AKQ | Somerset | 86 min |
| Aug 12, 3:06 PM EDT | Areal Flood Advisory | PHI | Caroline, Queen Anne's | 3 hr |
| Aug 12, 3:20 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 29 min |
| Aug 12, 3:36 PM EDT | Flash Flood Warning | PHI | Cecil | 108 min |
| Aug 12, 3:46 PM EDT | Flash Flood Warning | PHI | Caroline | 3 hr |
| Aug 12, 4:02 PM EDT | Special Weather Statement | PHI | Caroline | 28 min |
| Aug 12, 4:11 PM EDT | Areal Flood Warning | PHI | Caroline, Talbot | 3 hr |
| Aug 12, 4:23 PM EDT | Flash Flood Warning | LWX | Harford | 3 hr |
| Aug 12, 4:42 PM EDT | Special Weather Statement | AKQ | Dorchester | 48 min |
| Aug 12, 4:43 PM EDT | Areal Flood Advisory | PHI | Cecil, Kent | 54 min |
| Aug 12, 4:54 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 36 min |
| Aug 12, 5:05 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Howard | 40 min |
| Aug 12, 5:13 PM EDT | Areal Flood Advisory | AKQ | Dorchester, Wicomico | 2 hr |
| Aug 12, 5:13 PM EDT | Flash Flood Warning | LWX | Anne Arundel | 4 hr |
| Aug 12, 5:23 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Howard, City of Baltimore | 38 min |
| Aug 12, 5:30 PM EDT | Special Weather Statement | AKQ | Wicomico | 45 min |
| Aug 12, 5:35 PM EDT | Areal Flood Warning | LWX | Baltimore, Howard, City of Baltimore | 7 hr |
| Aug 12, 5:42 PM EDT | Flash Flood Warning | LWX | Baltimore, Howard, City of Baltimore | 3 hr |
| Aug 12, 5:49 PM EDT | Flash Flood Warning | LWX | Howard, Montgomery, Prince George's | 3 hr |
| Aug 12, 6:10 PM EDT | Flash Flood Warning | LWX | Anne Arundel, Baltimore, City of Baltimore | 3 hr |
| Aug 12, 6:50 PM EDT | Areal Flood Warning | LWX | Frederick | 108 min |
| Aug 12, 6:54 PM EDT | Flash Flood Warning | LWX | Montgomery | 2 hr |
| Aug 12, 7:11 PM EDT | Areal Flood Advisory | PBZ | Garrett | 2 hr |
| Aug 12, 8:50 PM EDT | Areal Flood Warning | LWX | Anne Arundel | 4 hr |
| Aug 12, 10:01 PM EDT | Areal Flood Warning | LWX | Allegany | 4 hr |
| Aug 13, 1:49 AM EDT | Flash Flood Watch | LWX | Allegany | 19 hr |
| Aug 13, 2:25 AM EDT | Flash Flood Watch | AKQ | Dorchester, Somerset, Wicomico, Worcester | 17 hr |
| Aug 13, 3:02 AM EDT | Flash Flood Watch | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 17 hr |
| Aug 13, 8:32 AM EDT | Areal Flood Warning | LWX | Calvert, Charles, Saint Mary's | 6 hr |
| Aug 13, 8:58 AM EDT | Areal Flood Warning | LWX | Charles, Prince George's | 6 hr |
| Aug 13, 9:25 AM EDT | Areal Flood Warning | LWX | Calvert, Charles, Prince George's, Saint Mary's | 5 hr |
| Aug 13, 9:41 AM EDT | Flash Flood Warning | LWX | Charles, Prince George's | 3 hr |
| Aug 13, 10:14 AM EDT | Flash Flood Warning | PHI | Kent, Queen Anne's | 4 hr |
| Aug 13, 11:28 AM EDT | Areal Flood Advisory | PHI | Caroline, Kent, Queen Anne's, Talbot | 4 hr |
| Aug 13, 11:46 AM EDT | Areal Flood Advisory | PHI | Cecil, Kent | 3 hr |
| Aug 13, 12:02 PM EDT | Flash Flood Warning | PHI | Kent, Queen Anne's | 2 hr |
| Aug 13, 12:05 PM EDT | Special Weather Statement | AKQ | Wicomico | 55 min |
| Aug 13, 12:33 PM EDT | Areal Flood Advisory | AKQ | Wicomico, Worcester | 3 hr |
| Aug 13, 1:14 PM EDT | Special Weather Statement | AKQ | Somerset | 46 min |
| Aug 13, 1:50 PM EDT | Areal Flood Advisory | AKQ | Somerset | 3 hr |
| Aug 14, 7:26 AM EDT | Areal Flood Warning | LWX | Charles | 6 hr |
| Aug 14, 8:32 AM EDT | Areal Flood Advisory | AKQ | Worcester | 104 min |
| Aug 14, 5:03 PM EDT | Special Weather Statement | PHI | Caroline, Queen Anne's | 57 min |
| Aug 14, 6:57 PM EDT | Areal Flood Warning | LWX | Baltimore, City of Baltimore | 4 hr |
| Aug 14, 7:27 PM EDT | Areal Flood Warning | LWX | Baltimore, City of Baltimore | 4 hr |
| Aug 15, 3:21 AM EDT | Flash Flood Watch | AKQ | Dorchester, Somerset, Wicomico, Worcester | 33 hr |
| Aug 15, 2:02 PM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Charles, Saint Mary's | 18 hr |
| Aug 15, 4:02 PM EDT | Beach Hazards Statement | AKQ | Worcester | 28 hr |
| Aug 15, 10:22 PM EDT | Flash Flood Watch | LWX | Calvert, Charles, Saint Mary's | 11 hr |
| Aug 16, 9:48 AM EDT | Coastal Flood Advisory | LWX | Saint Mary's | 5 hr |
| Aug 16, 2:58 PM EDT | Coastal Flood Statement | AKQ | Dorchester, Somerset, Worcester | 14 hr |
| Aug 16, 9:08 PM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Baltimore, Saint Mary's, City of Baltimore | 12 hr |
| Aug 17, 4:04 AM EDT | Beach Hazards Statement | AKQ | Worcester | 16 hr |
| Aug 17, 9:10 AM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Calvert, Saint Mary's | 21 hr |
| Aug 17, 12:02 PM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Baltimore, Charles, Harford, City of Baltimore | 24 hr |
| Aug 17, 2:23 PM EDT | Coastal Flood Advisory | AKQ | Dorchester, Somerset, Wicomico | 14 hr |
| Aug 17, 8:01 PM EDT | Special Weather Statement | PHI | Talbot | 44 min |
| Aug 17, 8:18 PM EDT | Special Weather Statement | AKQ | Dorchester | 57 min |
| Aug 17, 10:43 PM EDT | Special Weather Statement | AKQ | Wicomico | 47 min |
| Aug 18, 12:44 AM EDT | Coastal Flood Warning | LWX | Anne Arundel, Saint Mary's | 6 hr |
| Aug 18, 4:21 AM EDT | Coastal Flood Advisory | AKQ | Dorchester, Wicomico | 99 min |
| Aug 19, 5:32 AM EDT | Coastal Flood Advisory | LWX | Anne Arundel | 102 min |
| Aug 19, 8:34 AM EDT | Special Weather Statement | AKQ | Worcester | 41 min |
| Aug 19, 9:45 AM EDT | Special Weather Statement | AKQ | Dorchester | 45 min |
| Aug 19, 10:15 AM EDT | Special Weather Statement | AKQ | Dorchester, Wicomico | 45 min |
| Aug 19, 10:20 AM EDT | Severe Thunderstorm Warning | AKQ | Dorchester, Wicomico | 40 min |
| Aug 19, 10:59 AM EDT | Special Weather Statement | AKQ | Worcester | 46 min |
| Aug 19, 11:18 AM EDT | Special Weather Statement | AKQ | Worcester | 42 min |
| Aug 19, 5:22 PM EDT | Special Weather Statement | AKQ | Worcester | 38 min |
| Aug 20, 8:38 PM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Saint Mary's | 15 hr |
| Aug 21, 2:49 AM EDT | Coastal Flood Statement | AKQ | Dorchester | 5 hr |
| Aug 23, 1:45 PM EDT | Special Weather Statement | PHI | Cecil | 60 min |
| Aug 23, 3:57 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Carroll, Cecil, Charles, Frederick and 7 more | 2 hr |
| Aug 23, 4:23 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford | 52 min |
| Aug 23, 5:01 PM EDT | Severe Thunderstorm Warning | LWX | Frederick | 44 min |
| Aug 23, 5:17 PM EDT | Special Weather Statement | PHI | Kent | 28 min |
| Aug 23, 5:29 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick, Howard, Montgomery | 46 min |
| Aug 23, 6:58 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, City of Baltimore | 47 min |
| Aug 23, 7:34 PM EDT | Areal Flood Warning | LWX | Baltimore, City of Baltimore | 2 hr |
| Aug 23, 7:45 PM EDT | Flash Flood Warning | LWX | Baltimore | 81 min |
| Aug 23, 7:58 PM EDT | Severe Thunderstorm Warning | PHI | Kent | 25 min |
| Aug 23, 8:30 PM EDT | Special Weather Statement | PHI | Cecil | 30 min |
| Aug 23, 8:42 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 48 min |
| Aug 24, 12:44 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Carroll, Cecil, Frederick and 6 more | 2 hr |
| Aug 24, 1:39 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 39 min |
| Aug 24, 2:38 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 20 min |
| Aug 24, 2:51 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Howard, City of Baltimore | 39 min |
| Aug 24, 3:32 PM EDT | Special Weather Statement | PHI | Queen Anne's | 28 min |
| Aug 24, 3:56 PM EDT | Special Weather Statement | PHI | Kent | 34 min |
| Aug 24, 4:46 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Saint Mary's | 30 min |
| Aug 25, 1:21 PM EDT | Severe Thunderstorm Watch | SPC | Garrett | 6 hr |
| Aug 25, 2:26 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 23 min |
| Aug 25, 2:50 PM EDT | Special Weather Statement | PBZ | Garrett | 25 min |
| Aug 25, 3:10 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 11 more | 95 min |
| Aug 25, 3:34 PM EDT | Severe Thunderstorm Watch | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Caroline, Carroll and 17 more | 7 hr |
| Aug 25, 4:12 PM EDT | Severe Thunderstorm Warning | LWX | Allegany, Washington | 48 min |
| Aug 25, 4:35 PM EDT | Mesoscale Discussion | SPC | Allegany, Garrett | 85 min |
| Aug 25, 4:48 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 27 min |
| Aug 25, 4:50 PM EDT | Severe Thunderstorm Warning | LWX | Allegany, Washington | 40 min |
| Aug 25, 4:52 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 38 min |
| Aug 25, 5:03 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 42 min |
| Aug 25, 5:19 PM EDT | Special Weather Statement | PBZ | Garrett | 26 min |
| Aug 25, 5:44 PM EDT | Areal Flood Warning | LWX | Allegany | 94 min |
| Aug 25, 5:50 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 40 min |
| Aug 25, 6:31 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent | 19 min |
| Aug 25, 7:07 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 15 more | 113 min |
| Aug 25, 7:11 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 49 min |
| Aug 25, 7:36 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 39 min |
| Aug 25, 7:51 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Prince George's | 39 min |
| Aug 25, 7:52 PM EDT | Special Weather Statement | PHI | Talbot | 38 min |
| Aug 25, 8:01 PM EDT | Special Weather Statement | AKQ | Dorchester | 44 min |
| Aug 25, 8:23 PM EDT | Special Weather Statement | PHI | Caroline | 37 min |
| Aug 25, 8:28 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's, Talbot | 47 min |
| Aug 25, 8:29 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester | 46 min |
| Aug 25, 8:47 PM EDT | Special Weather Statement | AKQ | Wicomico | 28 min |
| Aug 25, 8:50 PM EDT | Mesoscale Discussion | SPC | Calvert, Charles, Dorchester, Saint Mary's | 115 min |
| Aug 25, 9:00 PM EDT | Special Weather Statement | PHI | Caroline | 45 min |
| Aug 25, 9:08 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester, Somerset, Wicomico | 52 min |
| Aug 25, 9:12 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Talbot | 48 min |
| Aug 25, 9:19 PM EDT | Special Weather Statement | AKQ | Worcester | 26 min |
| Aug 25, 9:47 PM EDT | Severe Thunderstorm Warning | AKQ | Somerset, Wicomico, Worcester | 43 min |
| Aug 25, 9:48 PM EDT | Special Weather Statement | AKQ | Worcester | 42 min |
| Aug 27, 2:14 PM EDT | Mesoscale Discussion | SPC | Allegany, Garrett, Washington | 2 hr |
| Aug 27, 2:51 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 39 min |
| Aug 27, 5:32 PM EDT | Severe Thunderstorm Watch | SPC | Garrett | 4 hr |
| Aug 27, 6:25 PM EDT | Severe Thunderstorm Warning | PHI | Kent, Queen Anne's, Talbot | 50 min |
| Aug 27, 6:35 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Carroll, Cecil, Frederick and 7 more | 115 min |
| Aug 27, 7:12 PM EDT | Special Weather Statement | PHI | Caroline | 48 min |
| Aug 27, 7:25 PM EDT | Severe Thunderstorm Warning | PHI | Caroline | 35 min |
| Aug 27, 7:40 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 65 min |
| Aug 27, 8:30 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 15 min |
| Aug 27, 8:42 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 48 min |
| Aug 28, 9:55 AM EDT | Mesoscale Discussion | SPC | Baltimore, Carroll, Cecil, Frederick, Harford, Kent and 2 more | 3 hr |
| Aug 28, 1:37 PM EDT | Severe Thunderstorm Watch | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Caroline, Carroll and 12 more | 8 hr |
| Aug 28, 1:51 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 24 min |
| Aug 28, 1:53 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent | 52 min |
| Aug 28, 2:40 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent | 50 min |
| Aug 28, 3:02 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 43 min |
| Aug 28, 3:07 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Frederick, Howard, Montgomery | 38 min |
| Aug 28, 3:19 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Frederick, Harford | 41 min |
| Aug 28, 3:45 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll | 21 min |
| Aug 28, 3:50 PM EDT | Mesoscale Discussion | SPC | Baltimore, Cecil, Harford, Kent | 85 min |
| Aug 28, 4:01 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 44 min |
| Aug 28, 4:02 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford | 43 min |
| Aug 28, 4:33 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Frederick, Howard, Montgomery, Prince George's | 42 min |
| Aug 28, 4:39 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent, Queen Anne's | 66 min |
| Aug 28, 4:59 PM EDT | Flash Flood Watch | LWX | Anne Arundel, Baltimore, Howard, Montgomery, Prince George's, City of Baltimore | 11 hr |
| Aug 28, 5:45 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery, Prince George's | 45 min |
| Aug 28, 6:17 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 43 min |
| Aug 28, 6:17 PM EDT | Severe Thunderstorm Warning | PHI | Caroline | 43 min |
| Aug 28, 6:32 PM EDT | Areal Flood Warning | LWX | Prince George's | 5 hr |
| Aug 28, 6:51 PM EDT | Flash Flood Warning | LWX | Prince George's | 93 min |
| Aug 28, 6:55 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Prince George's | 33 min |
| Aug 28, 7:12 PM EDT | Special Weather Statement | PBZ | Garrett | 33 min |
| Aug 28, 7:19 PM EDT | Areal Flood Warning | LWX | Prince George's | 112 min |
| Aug 28, 7:41 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Charles, Prince George's, Saint Mary's | 49 min |
| Aug 28, 7:50 PM EDT | Mesoscale Discussion | SPC | Calvert, Charles, Dorchester, Saint Mary's, Somerset, Talbot and 2 more | 2 hr |
| Aug 28, 8:00 PM EDT | Special Weather Statement | AKQ | Dorchester | 60 min |
| Aug 28, 8:19 PM EDT | Severe Thunderstorm Warning | LWX | Saint Mary's | 26 min |
| Aug 28, 8:39 PM EDT | Special Weather Statement | AKQ | Somerset | 66 min |
| Aug 28, 9:55 PM EDT | Flash Flood Warning | LWX | Prince George's | 78 min |
| Aug 28, 10:29 PM EDT | Flash Flood Warning | LWX | Charles | 99 min |
| Aug 28, 11:19 PM EDT | Special Weather Statement | AKQ | Dorchester | 41 min |
| Aug 28, 11:37 PM EDT | Special Weather Statement | PHI | Talbot | 38 min |
| Aug 29, 12:09 AM EDT | Special Weather Statement | AKQ | Dorchester | 51 min |
| Aug 29, 12:32 AM EDT | Special Weather Statement | PHI | Wicomico | 28 min |
| Aug 29, 12:40 AM EDT | Special Weather Statement | AKQ | Somerset, Wicomico | 50 min |
| Aug 29, 1:10 AM EDT | Tornado Warning | AKQ | Somerset | 21 min |
| Aug 29, 1:27 AM EDT | Severe Thunderstorm Warning | AKQ | Somerset, Worcester | 48 min |
| Aug 29, 1:44 AM EDT | Areal Flood Advisory | AKQ | Somerset, Wicomico, Worcester | 3 hr |
| Aug 29, 2:43 AM EDT | Areal Flood Warning | LWX | Calvert, Saint Mary's | 12 hr |
| Aug 29, 3:21 AM EDT | Areal Flood Advisory | AKQ | Dorchester, Wicomico | 3 hr |
| Aug 29, 4:03 AM EDT | Flash Flood Warning | AKQ | Somerset, Wicomico | 3 hr |
| Aug 29, 4:39 AM EDT | Areal Flood Advisory | AKQ | Somerset, Wicomico, Worcester | 2 hr |
| Aug 29, 8:16 AM EDT | Areal Flood Advisory | PHI | Caroline, Queen Anne's, Talbot | 4 hr |
| Aug 29, 12:08 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Cecil, Charles and 13 more | 3 hr |
| Aug 29, 1:29 PM EDT | Special Weather Statement | AKQ | Dorchester | 46 min |
| Aug 29, 1:35 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester | 40 min |
| Aug 29, 1:46 PM EDT | Tornado Warning | AKQ | Dorchester | 29 min |
| Aug 29, 2:02 PM EDT | Areal Flood Advisory | PHI | Caroline, Queen Anne's, Talbot | 3 hr |
| Aug 29, 2:16 PM EDT | Special Weather Statement | AKQ | Dorchester | 29 min |
| Aug 29, 2:49 PM EDT | Special Weather Statement | PHI | Kent | 41 min |
| Aug 29, 5:30 PM EDT | Special Weather Statement | PHI | Cecil | 60 min |
| Aug 29, 8:12 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Saint Mary's | 48 min |
| Aug 29, 11:15 PM EDT | Areal Flood Warning | LWX | Charles | 11 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.
- Kent County61
- Baltimore County58
- Cecil County56
- Wicomico County56
- Queen Anne's County52
- Dorchester County52
- Anne Arundel County51
- Caroline County49
- Prince George's County49
- Charles County47
- Saint Mary's County47
- Worcester County47
- Talbot County43
- Calvert County39
- City of Baltimore38
- Harford County38
- Somerset County38
- Howard County30
- Montgomery County28
- Frederick County27
- Washington County24
- Carroll County23
- Allegany County21
- Garrett County15
Nearby
Alerts in force nowTornadoes on recordThe radar archive20192021
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.