Alert archive / Maryland / 2019
Weather alerts in Maryland, July 2019
270 weather alerts in July 2019, 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 2019. Tap one for its archive.
- Alerts
- 270
- Warnings
- 151
- Watches
- 24
- Advisories
- 31
- Busiest day
- July 22, 201936 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 |
|---|---|---|---|---|
| Jul 2, 12:47 AM EDT | Coastal Flood Advisory | LWX | Saint Mary's | 2 hr |
| Jul 2, 4:20 AM EDT | Coastal Flood Advisory | LWX | Anne Arundel | 6 hr |
| Jul 2, 3:10 PM EDT | Mesoscale Discussion | SPC | Allegany, Frederick, Garrett, Washington | 95 min |
| Jul 2, 4:38 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 37 min |
| Jul 2, 5:03 PM EDT | Coastal Flood Statement | AKQ | Dorchester, Somerset, Wicomico, Worcester | 14 hr |
| Jul 2, 5:04 PM EDT | Severe Thunderstorm Warning | LWX | Howard, Montgomery, Prince George's | 41 min |
| Jul 2, 5:25 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Howard, Montgomery, Prince George's | 50 min |
| Jul 2, 5:53 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 12 more | 2 hr |
| Jul 2, 6:18 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick, Washington | 42 min |
| Jul 2, 6:29 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 25 min |
| Jul 2, 6:39 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick | 36 min |
| Jul 2, 6:59 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Frederick, Howard | 46 min |
| Jul 2, 7:09 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll | 36 min |
| Jul 2, 7:15 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick, Howard, Montgomery | 45 min |
| Jul 2, 7:27 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 48 min |
| Jul 2, 7:45 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford | 45 min |
| Jul 2, 7:53 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Howard, Montgomery, Prince George's | 37 min |
| Jul 2, 8:20 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Prince George's | 25 min |
| Jul 2, 9:04 PM EDT | Special Weather Statement | AKQ | Dorchester | 41 min |
| Jul 2, 9:39 PM EDT | Special Weather Statement | AKQ | Somerset, Wicomico | 51 min |
| Jul 4, 11:18 AM EDT | Flash Flood Watch | PBZ | 6 hr | |
| Jul 4, 11:23 AM EDT | Flash Flood Watch | LWX | Allegany, Anne Arundel, Baltimore, Howard, Montgomery, Prince George's and 1 more | 12 hr |
| Jul 4, 12:12 PM EDT | Flash Flood Warning | PBZ | Garrett | 3 hr |
| Jul 4, 12:48 PM EDT | Special Weather Statement | AKQ | Somerset | 42 min |
| Jul 4, 12:49 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Carroll, Cecil, Charles and 10 more | 116 min |
| Jul 4, 1:40 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Howard, Prince George's | 50 min |
| Jul 4, 1:42 PM EDT | Flash Flood Warning | LWX | Anne Arundel | 58 min |
| Jul 4, 1:56 PM EDT | Special Weather Statement | AKQ | Wicomico | 49 min |
| Jul 4, 2:06 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll | 39 min |
| Jul 4, 2:11 PM EDT | Areal Flood Advisory | PHI | Caroline, Kent, Queen Anne's, Talbot | 4 hr |
| Jul 4, 2:17 PM EDT | Special Weather Statement | PHI | Talbot | 43 min |
| Jul 4, 2:23 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 52 min |
| Jul 4, 2:51 PM EDT | Special Weather Statement | AKQ | Dorchester | 39 min |
| Jul 4, 2:56 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 49 min |
| Jul 4, 3:15 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Talbot | 27 min |
| Jul 4, 3:20 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester | 40 min |
| Jul 4, 3:46 PM EDT | Special Weather Statement | PHI | Caroline | 44 min |
| Jul 4, 4:29 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Prince George's | 33 min |
| Jul 5, 12:02 AM EDT | Special Weather Statement | PHI | Kent | 58 min |
| Jul 5, 5:47 AM EDT | Flash Flood Watch | LWX | Allegany | 16 hr |
| Jul 5, 7:43 AM EDT | Flash Flood Watch | PBZ | 14 hr | |
| Jul 5, 7:11 PM EDT | Flash Flood Warning | LWX | Carroll, Frederick | 3 hr |
| Jul 5, 8:15 PM EDT | Flash Flood Warning | PBZ | Garrett | 70 min |
| Jul 5, 8:27 PM EDT | Areal Flood Warning | LWX | Carroll | 20 min |
| Jul 5, 8:55 PM EDT | Areal Flood Warning | LWX | Carroll | 76 min |
| Jul 6, 11:30 AM EDT | Flash Flood Watch | PBZ | 10 hr | |
| Jul 6, 1:48 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Caroline, Carroll and 17 more | 2 hr |
| Jul 6, 5:27 PM EDT | Tornado Warning | PHI | Queen Anne's, Talbot | 33 min |
| Jul 6, 5:49 PM EDT | Areal Flood Advisory | PHI | Cecil, Kent | 4 hr |
| Jul 6, 6:06 PM EDT | Severe Thunderstorm Warning | PHI | Caroline | 39 min |
| Jul 6, 6:25 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 35 min |
| Jul 6, 6:45 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery, Prince George's | 60 min |
| Jul 6, 6:58 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick, Washington | 36 min |
| Jul 6, 7:15 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Howard, Montgomery | 45 min |
| Jul 6, 7:35 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Montgomery, Prince George's | 55 min |
| Jul 6, 7:45 PM EDT | Special Weather Statement | PHI | Cecil | 45 min |
| Jul 6, 8:23 PM EDT | Special Weather Statement | PHI | Cecil, Kent | 52 min |
| Jul 6, 8:25 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Prince George's | 50 min |
| Jul 6, 9:01 PM EDT | Special Weather Statement | PHI | Queen Anne's | 29 min |
| Jul 6, 9:17 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 43 min |
| Jul 6, 9:59 PM EDT | Special Weather Statement | AKQ | Dorchester, Somerset, Wicomico | 61 min |
| Jul 7, 4:06 AM EDT | Flash Flood Watch | LWX | Allegany, Anne Arundel, Baltimore, Carroll, Charles, Frederick and 5 more | 34 hr |
| Jul 7, 12:05 PM EDT | Flash Flood Watch | PBZ | 9 hr | |
| Jul 7, 6:37 PM EDT | Areal Flood Advisory | PHI | Queen Anne's, Talbot | 113 min |
| Jul 7, 8:35 PM EDT | Special Weather Statement | AKQ | Dorchester | 40 min |
| Jul 7, 9:29 PM EDT | Areal Flood Advisory | AKQ | Dorchester | 2 hr |
| Jul 7, 11:11 PM EDT | Areal Flood Warning | LWX | Allegany | 2 hr |
| Jul 7, 11:24 PM EDT | Areal Flood Warning | LWX | Frederick, Washington | 12 hr |
| Jul 8, 12:27 AM EDT | Flash Flood Warning | LWX | Washington | 4 hr |
| Jul 8, 2:22 AM EDT | Areal Flood Warning | LWX | Frederick, Washington | 6 hr |
| Jul 8, 5:35 AM EDT | Areal Flood Warning | LWX | Frederick, Washington | 8 hr |
| Jul 8, 6:41 AM EDT | Flash Flood Warning | LWX | Frederick | 3 hr |
| Jul 8, 6:53 AM EDT | Areal Flood Advisory | AKQ | Worcester | 3 hr |
| Jul 8, 6:56 AM EDT | Areal Flood Warning | LWX | Frederick, Washington | 8 hr |
| Jul 8, 7:10 AM EDT | Flash Flood Warning | LWX | Frederick, Montgomery | 6 hr |
| Jul 8, 7:40 AM EDT | Areal Flood Warning | LWX | Baltimore, Carroll, Frederick | 8 hr |
| Jul 8, 7:46 AM EDT | Flash Flood Warning | LWX | Montgomery | 5 hr |
| Jul 8, 7:49 AM EDT | River Flood Warning | LWX | Montgomery | 15 hr |
| Jul 8, 8:06 AM EDT | Special Weather Statement | AKQ | Worcester | 54 min |
| Jul 8, 8:13 AM EDT | Areal Flood Advisory | AKQ | Worcester | 2 hr |
| Jul 8, 8:20 AM EDT | Flash Flood Warning | LWX | Montgomery, Prince George's | 5 hr |
| Jul 8, 8:25 AM EDT | Areal Flood Warning | LWX | Howard | 4 hr |
| Jul 8, 8:42 AM EDT | Flash Flood Warning | LWX | Howard, Montgomery | 2 hr |
| Jul 8, 9:05 AM EDT | Areal Flood Advisory | AKQ | Worcester | 115 min |
| Jul 8, 9:07 AM EDT | Flash Flood Warning | LWX | Charles, Prince George's | 4 hr |
| Jul 8, 10:15 AM EDT | Areal Flood Advisory | AKQ | Worcester | 2 hr |
| Jul 8, 11:17 AM EDT | Flash Flood Warning | LWX | Saint Mary's | 3 hr |
| Jul 8, 11:18 AM EDT | Severe Thunderstorm Warning | LWX | Saint Mary's | 42 min |
| Jul 8, 11:21 AM EDT | Areal Flood Warning | LWX | Calvert | 3 hr |
| Jul 8, 11:43 AM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Saint Mary's | 16 hr |
| Jul 8, 12:23 PM EDT | Areal Flood Warning | LWX | Anne Arundel, Howard | 4 hr |
| Jul 8, 12:50 PM EDT | Areal Flood Warning | LWX | Montgomery, Prince George's | 8 hr |
| Jul 8, 12:57 PM EDT | Areal Flood Warning | LWX | Charles, Prince George's, Saint Mary's | 5 hr |
| Jul 8, 6:40 PM EDT | Areal Flood Warning | LWX | Prince George's | 15 hr |
| Jul 8, 7:13 PM EDT | Areal Flood Warning | LWX | Saint Mary's | 4 hr |
| Jul 8, 10:00 PM EDT | Areal Flood Warning | LWX | Charles | 6 hr |
| Jul 9, 3:46 AM EDT | Areal Flood Warning | LWX | Charles | 2 hr |
| Jul 11, 3:44 AM EDT | Flash Flood Watch | PHI | Cecil | 18 hr |
| Jul 11, 4:18 AM EDT | Flash Flood Watch | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 7 more | 15 hr |
| Jul 11, 10:45 AM EDT | Mesoscale Discussion | SPC | Garrett | 90 min |
| Jul 11, 12:26 PM EDT | Special Weather Statement | AKQ | Worcester | 34 min |
| Jul 11, 12:33 PM EDT | Special Weather Statement | PHI | Cecil, Kent | 57 min |
| Jul 11, 12:51 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 12 more | 84 min |
| Jul 11, 1:22 PM EDT | Flash Flood Warning | PBZ | Garrett | 3 hr |
| Jul 11, 1:33 PM EDT | Special Weather Statement | PBZ | Garrett | 27 min |
| Jul 11, 2:04 PM EDT | Special Weather Statement | PBZ | Garrett | 26 min |
| Jul 11, 2:11 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 49 min |
| Jul 11, 2:29 PM EDT | Flash Flood Warning | PBZ | Garrett | 3 hr |
| Jul 11, 3:07 PM EDT | Flash Flood Warning | PBZ | Garrett | 118 min |
| Jul 11, 3:37 PM EDT | Special Weather Statement | PHI | Cecil | 53 min |
| Jul 11, 3:57 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford | 48 min |
| Jul 11, 3:59 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Montgomery, Prince George's | 46 min |
| Jul 11, 4:10 PM EDT | Flash Flood Warning | LWX | Baltimore, Harford | 4 hr |
| Jul 11, 4:23 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford, City of Baltimore | 52 min |
| Jul 11, 4:40 PM EDT | Flash Flood Warning | LWX | Baltimore, City of Baltimore | 3 hr |
| Jul 11, 4:47 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford | 43 min |
| Jul 11, 4:55 PM EDT | Special Weather Statement | PHI | Cecil, Kent, Queen Anne's | 65 min |
| Jul 11, 4:59 PM EDT | Flash Flood Warning | LWX | Baltimore, Harford | 3 hr |
| Jul 11, 5:12 PM EDT | Flash Flood Warning | PHI | Cecil, Kent | 4 hr |
| Jul 11, 5:14 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Prince George's | 46 min |
| Jul 11, 5:44 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 61 min |
| Jul 11, 5:45 PM EDT | Areal Flood Advisory | PHI | Cecil, Kent, Queen Anne's, Talbot | 4 hr |
| Jul 11, 5:59 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Cecil, Charles and 11 more | 2 hr |
| Jul 11, 6:13 PM EDT | Areal Flood Warning | LWX | Charles, Prince George's | 3 hr |
| Jul 11, 6:15 PM EDT | Flash Flood Warning | PHI | Kent | 4 hr |
| Jul 11, 6:34 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Charles, Prince George's, Saint Mary's | 56 min |
| Jul 11, 6:39 PM EDT | Areal Flood Advisory | PHI | Caroline, Kent, Queen Anne's, Talbot | 4 hr |
| Jul 11, 7:08 PM EDT | Special Weather Statement | AKQ | Dorchester | 52 min |
| Jul 11, 7:30 PM EDT | Severe Thunderstorm Warning | LWX | Saint Mary's | 45 min |
| Jul 11, 7:33 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester, Wicomico | 42 min |
| Jul 11, 7:33 PM EDT | Areal Flood Warning | LWX | Baltimore, Harford, City of Baltimore | 5 hr |
| Jul 11, 7:36 PM EDT | Special Weather Statement | PHI | Caroline | 54 min |
| Jul 11, 8:01 PM EDT | Special Weather Statement | AKQ | Somerset | 44 min |
| Jul 11, 8:07 PM EDT | Areal Flood Advisory | PHI | Caroline, Talbot | 4 hr |
| Jul 11, 8:15 PM EDT | Special Weather Statement | AKQ | Wicomico | 45 min |
| Jul 11, 8:26 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester, Somerset, Wicomico, Worcester | 37 min |
| Jul 11, 8:44 PM EDT | Special Weather Statement | AKQ | Somerset | 46 min |
| Jul 11, 9:05 PM EDT | Special Weather Statement | AKQ | Wicomico, Worcester | 40 min |
| Jul 11, 9:18 PM EDT | Special Weather Statement | AKQ | Worcester | 27 min |
| Jul 11, 10:24 PM EDT | Coastal Flood Advisory | LWX | Anne Arundel | 6 hr |
| Jul 16, 2:44 PM EDT | Excessive Heat Warning | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 5 days |
| Jul 16, 2:44 PM EDT | Heat Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 29 hr |
| Jul 16, 2:46 PM EDT | Heat Advisory | AKQ | Dorchester, Somerset, Wicomico, Worcester | 52 hr |
| Jul 16, 3:28 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Carroll, Charles, Frederick, Harford and 5 more | 3 hr |
| Jul 16, 7:41 PM EDT | Special Weather Statement | AKQ | Wicomico | 34 min |
| Jul 16, 8:49 PM EDT | Heat Advisory | LWX | Anne Arundel, Baltimore, Calvert, Charles, Harford, Howard and 4 more | 22 hr |
| Jul 17, 3:54 AM EDT | Flash Flood Watch | PHI | Cecil | 19 hr |
| Jul 17, 1:29 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 16 more | 3 hr |
| Jul 17, 3:14 PM EDT | Excessive Heat Watch | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 24 hr |
| Jul 17, 4:43 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Montgomery | 47 min |
| Jul 17, 4:51 PM EDT | Severe Thunderstorm Watch | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 9 more | 6 hr |
| Jul 17, 4:53 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick | 52 min |
| Jul 17, 5:08 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Prince George's | 41 min |
| Jul 17, 5:12 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Frederick, Howard, Montgomery | 48 min |
| Jul 17, 5:23 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Howard, Montgomery, Prince George's | 52 min |
| Jul 17, 5:35 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Charles, Prince George's | 40 min |
| Jul 17, 5:46 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Harford, City of Baltimore | 59 min |
| Jul 17, 6:08 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Harford, Howard, City of Baltimore | 52 min |
| Jul 17, 6:31 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 44 min |
| Jul 17, 6:35 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 40 min |
| Jul 17, 6:38 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Cecil, Dorchester and 5 more | 97 min |
| Jul 17, 6:44 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Cecil, Kent, Queen Anne's | 46 min |
| Jul 17, 7:15 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 45 min |
| Jul 17, 7:17 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's | 43 min |
| Jul 17, 8:05 PM EDT | Special Weather Statement | AKQ | Dorchester | 40 min |
| Jul 17, 8:19 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester, Somerset, Wicomico | 41 min |
| Jul 17, 8:46 PM EDT | Severe Thunderstorm Warning | AKQ | Wicomico, Worcester | 44 min |
| Jul 17, 8:57 PM EDT | Excessive Heat Watch | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 7 more | 6 hr |
| Jul 17, 8:57 PM EDT | Excessive Heat Watch | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 7 more | 19 hr |
| Jul 17, 9:48 PM EDT | Special Weather Statement | AKQ | Worcester | 42 min |
| Jul 17, 11:04 PM EDT | Special Weather Statement | AKQ | Worcester | 41 min |
| Jul 17, 11:06 PM EDT | Special Weather Statement | AKQ | Worcester | 39 min |
| Jul 18, 11:09 AM EDT | Excessive Heat Watch | LWX | Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 8 more | 28 hr |
| Jul 18, 11:09 AM EDT | Excessive Heat Watch | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 7 more | 58 hr |
| Jul 18, 1:49 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 16 more | 2 hr |
| Jul 18, 2:24 PM EDT | Areal Flood Advisory | PHI | Cecil | 3 hr |
| Jul 18, 3:25 PM EDT | Excessive Heat Warning | AKQ | Dorchester, Somerset, Wicomico, Worcester | 3 days |
| Jul 18, 3:25 PM EDT | Heat Advisory | AKQ | Dorchester, Somerset, Wicomico, Worcester | 29 hr |
| Jul 18, 3:43 PM EDT | Heat Advisory | LWX | Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 8 more | 29 hr |
| Jul 18, 9:14 PM EDT | Special Weather Statement | AKQ | Worcester | 46 min |
| Jul 19, 3:15 AM EDT | Excessive Heat Watch | AKQ | Dorchester, Somerset, Wicomico, Worcester | 12 hr |
| Jul 19, 3:52 AM EDT | Excessive Heat Warning | LWX | Anne Arundel, Baltimore, Carroll, Frederick, Harford, Howard and 4 more | 17 hr |
| Jul 19, 3:05 PM EDT | Excessive Heat Warning | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 7 more | 30 hr |
| Jul 19, 3:05 PM EDT | Heat Advisory | LWX | Allegany | 30 hr |
| Jul 20, 8:49 PM EDT | Excessive Heat Warning | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 7 more | 24 hr |
| Jul 20, 8:49 PM EDT | Heat Advisory | LWX | Allegany | 24 hr |
| Jul 20, 9:18 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery, Prince George's | 30 min |
| Jul 21, 3:15 AM EDT | Flash Flood Watch | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 51 hr |
| Jul 21, 2:48 PM EDT | Flash Flood Watch | LWX | Allegany, Anne Arundel, Baltimore, Carroll, Frederick, Harford and 5 more | 37 hr |
| Jul 21, 2:48 PM EDT | Heat Advisory | LWX | Calvert, Saint Mary's | 28 hr |
| Jul 21, 3:08 PM EDT | Heat Advisory | AKQ | Dorchester, Somerset, Wicomico, Worcester | 28 hr |
| Jul 21, 3:09 PM EDT | Heat Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 27 hr |
| Jul 21, 6:07 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Caroline, Carroll and 14 more | 83 min |
| Jul 21, 7:00 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 45 min |
| Jul 21, 7:05 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 40 min |
| Jul 21, 7:29 PM EDT | Severe Thunderstorm Warning | LWX | Frederick | 46 min |
| Jul 21, 7:32 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 43 min |
| Jul 21, 7:35 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 26 min |
| Jul 21, 7:59 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick | 61 min |
| Jul 21, 8:26 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Harford, Howard, City of Baltimore | 49 min |
| Jul 21, 8:46 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford | 44 min |
| Jul 21, 9:14 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford | 46 min |
| Jul 21, 9:30 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 45 min |
| Jul 21, 9:44 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent | 46 min |
| Jul 21, 9:55 PM EDT | Areal Flood Advisory | PHI | Cecil | 87 min |
| Jul 21, 10:13 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 47 min |
| Jul 22, 12:52 AM EDT | Flash Flood Watch | PBZ | 19 hr | |
| Jul 22, 12:51 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick | 54 min |
| Jul 22, 1:11 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 13 more | 94 min |
| Jul 22, 2:01 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll | 59 min |
| Jul 22, 2:17 PM EDT | Severe Thunderstorm Watch | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 15 more | 8 hr |
| Jul 22, 2:19 PM EDT | Special Weather Statement | CTP | Harford | 26 min |
| Jul 22, 2:24 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 51 min |
| Jul 22, 2:39 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 51 min |
| Jul 22, 2:44 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery, Prince George's | 46 min |
| Jul 22, 2:57 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick, Howard, Montgomery | 48 min |
| Jul 22, 3:01 PM EDT | Tornado Warning | LWX | Carroll, Frederick, Howard, Montgomery | 29 min |
| Jul 22, 3:19 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Howard, Montgomery, Prince George's | 56 min |
| Jul 22, 3:23 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Harford, City of Baltimore | 67 min |
| Jul 22, 3:35 PM EDT | Tornado Warning | LWX | Baltimore, Carroll | 25 min |
| Jul 22, 3:47 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 58 min |
| Jul 22, 3:52 PM EDT | Tornado Warning | LWX | Baltimore, Harford | 17 min |
| Jul 22, 4:11 PM EDT | Special Weather Statement | AKQ | Dorchester | 49 min |
| Jul 22, 4:11 PM EDT | Areal Flood Advisory | PHI | Cecil | 4 hr |
| Jul 22, 4:13 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford | 32 min |
| Jul 22, 4:16 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent | 59 min |
| Jul 22, 4:20 PM EDT | Mesoscale Discussion | SPC | Baltimore, Cecil, Harford, Kent, City of Baltimore | 115 min |
| Jul 22, 4:21 PM EDT | Areal Flood Advisory | PHI | Cecil, Kent | 2 hr |
| Jul 22, 4:35 PM EDT | Special Weather Statement | AKQ | Dorchester | 25 min |
| Jul 22, 5:01 PM EDT | Special Weather Statement | AKQ | Somerset | 44 min |
| Jul 22, 5:14 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent | 61 min |
| Jul 22, 5:51 PM EDT | Special Weather Statement | AKQ | Wicomico | 24 min |
| Jul 22, 6:29 PM EDT | Special Weather Statement | AKQ | Worcester | 31 min |
| Jul 22, 7:20 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Charles, Prince George's | 55 min |
| Jul 22, 7:43 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Prince George's | 47 min |
| Jul 22, 8:15 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 30 min |
| Jul 22, 8:21 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery, Prince George's | 24 min |
| Jul 22, 8:51 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 15 more | 84 min |
| Jul 22, 9:24 PM EDT | Tornado Warning | LWX | Carroll, Frederick | 21 min |
| Jul 22, 9:46 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll | 29 min |
| Jul 22, 11:16 PM EDT | Severe Thunderstorm Warning | AKQ | Somerset, Worcester | 44 min |
| Jul 22, 11:24 PM EDT | Special Weather Statement | AKQ | Somerset | 51 min |
| Jul 22, 11:40 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester, Somerset, Wicomico, Worcester | 50 min |
| Jul 22, 11:55 PM EDT | Severe Thunderstorm Warning | AKQ | Somerset, Wicomico, Worcester | 50 min |
| Jul 22, 11:58 PM EDT | Severe Thunderstorm Warning | PHI | Caroline | 47 min |
| Jul 23, 7:48 PM EDT | Areal Flood Advisory | PHI | Cecil | 3 hr |
| Jul 30, 2:16 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 44 min |
| Jul 30, 2:40 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 50 min |
| Jul 30, 4:17 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 43 min |
| Jul 31, 2:46 AM EDT | Coastal Flood Advisory | LWX | Anne Arundel | 4 hr |
| Jul 31, 3:28 AM EDT | Flash Flood Watch | PHI | Cecil | 17 hr |
| Jul 31, 12:02 PM EDT | Flash Flood Watch | LWX | Anne Arundel, Baltimore, Harford, Howard, Montgomery, Prince George's and 1 more | 7 hr |
| Jul 31, 1:17 PM EDT | Severe Thunderstorm Watch | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Cecil, Charles and 9 more | 7 hr |
| Jul 31, 1:36 PM EDT | Flash Flood Warning | LWX | Allegany | 3 hr |
| Jul 31, 1:39 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 36 min |
| Jul 31, 2:15 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 30 min |
| Jul 31, 2:22 PM EDT | Special Weather Statement | PBZ | Garrett | 23 min |
| Jul 31, 2:46 PM EDT | Areal Flood Warning | LWX | Allegany | 2 hr |
| Jul 31, 4:15 PM EDT | Special Weather Statement | PBZ | Garrett | 15 min |
| Jul 31, 4:17 PM EDT | Special Weather Statement | AKQ | Somerset | 58 min |
| Jul 31, 4:19 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Cecil, Charles and 12 more | 56 min |
| Jul 31, 4:45 PM EDT | Severe Thunderstorm Warning | LWX | Calvert | 45 min |
| Jul 31, 5:21 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert | 39 min |
| Jul 31, 5:56 PM EDT | Areal Flood Warning | LWX | Calvert | 98 min |
| Jul 31, 5:58 PM EDT | Severe Thunderstorm Warning | LWX | Saint Mary's | 46 min |
| Jul 31, 6:02 PM EDT | Special Weather Statement | AKQ | Somerset | 58 min |
| Jul 31, 6:14 PM EDT | Severe Thunderstorm Warning | AKQ | Somerset, Worcester | 61 min |
| Jul 31, 6:16 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert | 44 min |
| Jul 31, 7:08 PM EDT | Special Weather Statement | PHI | Queen Anne's | 37 min |
| Jul 31, 7:21 PM EDT | Special Weather Statement | PHI | Queen Anne's | 24 min |
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.
- Montgomery County59
- Prince George's County57
- Baltimore County55
- Anne Arundel County48
- Frederick County48
- Cecil County48
- Carroll County47
- Harford County47
- Howard County45
- Charles County39
- Kent County39
- City of Baltimore38
- Queen Anne's County34
- Calvert County32
- Caroline County32
- Saint Mary's County31
- Dorchester County31
- Talbot County31
- Worcester County30
- Washington County29
- Somerset County28
- Wicomico County26
- Allegany County19
- Garrett County12
Nearby
Alerts in force nowTornadoes on recordThe radar archive20182020
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.