Alert archive / Maryland / 2011
Weather alerts in Maryland, July 2011
275 weather alerts in July 2011, 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 2011. Tap one for its archive.
- Alerts
- 275
- Warnings
- 89
- Watches
- 14
- Advisories
- 27
- Busiest day
- July 8, 201144 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, 7:11 PM EDT | Special Weather Statement | LWX | Frederick | 49 min |
| Jul 3, 2:41 AM EDT | Special Weather Statement | LWX | Frederick | 34 min |
| Jul 3, 2:42 AM EDT | Special Weather Statement | PBZ | Garrett | 63 min |
| Jul 3, 3:14 AM EDT | Flash Flood Warning | LWX | Carroll, Frederick | 3 hr |
| Jul 3, 4:43 AM EDT | Special Weather Statement | AKQ | Somerset | 47 min |
| Jul 3, 3:14 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 46 min |
| Jul 3, 3:22 PM EDT | Mesoscale Discussion | SPC | Allegany, Carroll, Frederick, Garrett, Montgomery, Washington | 53 min |
| Jul 3, 3:56 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 49 min |
| Jul 3, 4:01 PM EDT | Special Weather Statement | PBZ | Garrett | 59 min |
| Jul 3, 4:03 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 27 min |
| Jul 3, 4:21 PM EDT | Severe Thunderstorm Watch | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 8 more | 7 hr |
| Jul 3, 5:10 PM EDT | Special Weather Statement | LWX | Montgomery | 50 min |
| Jul 3, 5:27 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Montgomery | 48 min |
| Jul 3, 5:35 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Howard, Montgomery | 35 min |
| Jul 3, 5:58 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery, Prince George's | 62 min |
| Jul 3, 6:03 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Harford, Howard, Montgomery, Prince George's and 1 more | 72 min |
| Jul 3, 6:36 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Prince George's | 43 min |
| Jul 3, 6:45 PM EDT | Special Weather Statement | PHI | Talbot | 60 min |
| Jul 3, 7:00 PM EDT | Special Weather Statement | LWX | Montgomery | 60 min |
| Jul 3, 7:18 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's, Talbot | 57 min |
| Jul 3, 7:22 PM EDT | Special Weather Statement | LWX | Anne Arundel | 23 min |
| Jul 3, 7:41 PM EDT | Special Weather Statement | AKQ | Dorchester | 64 min |
| Jul 3, 7:43 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 62 min |
| Jul 3, 7:51 PM EDT | Special Weather Statement | PHI | Cecil | 54 min |
| Jul 3, 8:15 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 48 min |
| Jul 3, 8:19 PM EDT | Special Weather Statement | LWX | Harford | 41 min |
| Jul 3, 8:34 PM EDT | Severe Thunderstorm Warning | PHI | Caroline | 20 min |
| Jul 3, 8:41 PM EDT | Mesoscale Discussion | SPC | Calvert, Caroline, Charles, Dorchester, Saint Mary's, Somerset and 2 more | 64 min |
| Jul 3, 8:44 PM EDT | Special Weather Statement | LWX | Prince George's | 31 min |
| Jul 3, 9:41 PM EDT | Special Weather Statement | PHI | Talbot | 64 min |
| Jul 3, 10:08 PM EDT | Special Weather Statement | PHI | Queen Anne's, Talbot | 52 min |
| Jul 4, 1:54 PM EDT | Mesoscale Discussion | SPC | Allegany, Garrett | 96 min |
| Jul 4, 2:34 PM EDT | Severe Thunderstorm Watch | SPC | Calvert, Charles, Dorchester, Saint Mary's, Somerset, Wicomico and 1 more | 6 hr |
| Jul 4, 4:52 PM EDT | Areal Flood Warning | PBZ | Garrett | 71 min |
| Jul 4, 6:44 PM EDT | Mesoscale Discussion | SPC | Saint Mary's | 61 min |
| Jul 4, 7:28 PM EDT | Special Weather Statement | LWX | Allegany, Washington | 32 min |
| Jul 4, 8:10 PM EDT | Special Weather Statement | LWX | Washington | 35 min |
| Jul 4, 10:22 PM EDT | Special Weather Statement | AKQ | Worcester | 53 min |
| Jul 5, 2:45 PM EDT | Special Weather Statement | AKQ | Worcester | 45 min |
| Jul 6, 12:43 PM EDT | Special Weather Statement | AKQ | Worcester | 62 min |
| Jul 7, 2:56 PM EDT | Special Weather Statement | LWX | Harford | 34 min |
| Jul 7, 3:14 PM EDT | Flash Flood Watch | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 3 more | 29 hr |
| Jul 7, 4:31 PM EDT | Special Weather Statement | LWX | Allegany | 29 min |
| Jul 7, 4:37 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 38 min |
| Jul 7, 4:58 PM EDT | Flash Flood Warning | LWX | Allegany | 91 min |
| Jul 7, 5:01 PM EDT | Special Weather Statement | LWX | Harford | 29 min |
| Jul 7, 5:14 PM EDT | Special Weather Statement | LWX | Harford | 31 min |
| Jul 7, 5:16 PM EDT | Special Weather Statement | LWX | Allegany | 29 min |
| Jul 7, 5:36 PM EDT | Flash Flood Warning | LWX | Harford | 113 min |
| Jul 7, 5:46 PM EDT | Special Weather Statement | PHI | Cecil, Kent | 89 min |
| Jul 7, 5:49 PM EDT | Special Weather Statement | LWX | City of Baltimore | 26 min |
| Jul 7, 5:54 PM EDT | Special Weather Statement | LWX | City of Baltimore | 36 min |
| Jul 7, 6:04 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, City of Baltimore | 41 min |
| Jul 7, 6:16 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, City of Baltimore | 44 min |
| Jul 7, 6:21 PM EDT | Flash Flood Warning | LWX | Baltimore, City of Baltimore | 3 hr |
| Jul 7, 6:44 PM EDT | Special Weather Statement | LWX | City of Baltimore | 31 min |
| Jul 7, 6:52 PM EDT | Special Weather Statement | LWX | Anne Arundel | 23 min |
| Jul 7, 7:15 PM EDT | Special Weather Statement | LWX | Frederick | 30 min |
| Jul 7, 7:38 PM EDT | Special Weather Statement | LWX | City of Baltimore | 37 min |
| Jul 7, 8:13 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 14 min |
| Jul 7, 8:15 PM EDT | Flash Flood Warning | LWX | Anne Arundel, Baltimore, Howard, City of Baltimore | 3 hr |
| Jul 7, 9:57 PM EDT | Special Weather Statement | LWX | Montgomery | 33 min |
| Jul 7, 10:01 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 29 min |
| Jul 7, 10:52 PM EDT | Special Weather Statement | LWX | Baltimore | 38 min |
| Jul 7, 10:54 PM EDT | Special Weather Statement | LWX | Washington | 36 min |
| Jul 7, 11:11 PM EDT | Flash Flood Warning | LWX | Baltimore, City of Baltimore | 3 hr |
| Jul 7, 11:15 PM EDT | Special Weather Statement | LWX | Baltimore | 30 min |
| Jul 7, 11:21 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford | 39 min |
| Jul 7, 11:28 PM EDT | Flash Flood Warning | LWX | Washington | 3 hr |
| Jul 8, 12:01 AM EDT | Special Weather Statement | LWX | Baltimore | 29 min |
| Jul 8, 12:34 AM EDT | Special Weather Statement | LWX | Baltimore, Harford | 26 min |
| Jul 8, 1:05 AM EDT | Special Weather Statement | LWX | Carroll | 40 min |
| Jul 8, 1:21 AM EDT | Special Weather Statement | LWX | Baltimore, Carroll, Harford | 54 min |
| Jul 8, 3:56 AM EDT | Flash Flood Watch | AKQ | Dorchester, Somerset, Wicomico, Worcester | 20 hr |
| Jul 8, 3:58 AM EDT | Flash Flood Watch | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 19 hr |
| Jul 8, 11:44 AM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Caroline, Carroll and 13 more | 61 min |
| Jul 8, 12:32 PM EDT | Special Weather Statement | PBZ | Garrett | 58 min |
| Jul 8, 1:26 PM EDT | Special Weather Statement | LWX | Allegany | 94 min |
| Jul 8, 1:36 PM EDT | Special Weather Statement | PBZ | Garrett | 54 min |
| Jul 8, 1:51 PM EDT | Severe Thunderstorm Watch | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 11 more | 7 hr |
| Jul 8, 2:12 PM EDT | Special Weather Statement | PHI | Cecil | 93 min |
| Jul 8, 3:01 PM EDT | Special Weather Statement | LWX | Carroll, Frederick, Montgomery | 89 min |
| Jul 8, 3:24 PM EDT | Flash Flood Warning | LWX | Carroll, Frederick, Washington | 3 hr |
| Jul 8, 3:33 PM EDT | Flash Flood Warning | LWX | Baltimore, Carroll, Frederick, Howard, Montgomery | 3 hr |
| Jul 8, 3:44 PM EDT | Special Weather Statement | LWX | Anne Arundel, Prince George's | 31 min |
| Jul 8, 3:49 PM EDT | Flash Flood Warning | LWX | Baltimore, Carroll, Harford, Howard, City of Baltimore | 3 hr |
| Jul 8, 4:09 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Prince George's | 51 min |
| Jul 8, 4:10 PM EDT | Flash Flood Warning | LWX | Anne Arundel, Howard, Montgomery, Prince George's | 3 hr |
| Jul 8, 4:17 PM EDT | Special Weather Statement | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 88 min |
| Jul 8, 4:28 PM EDT | Special Weather Statement | LWX | Prince George's | 92 min |
| Jul 8, 4:29 PM EDT | Areal Flood Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 4 hr |
| Jul 8, 5:02 PM EDT | Special Weather Statement | LWX | Charles | 43 min |
| Jul 8, 5:07 PM EDT | Flash Flood Warning | LWX | Anne Arundel, Prince George's | 3 hr |
| Jul 8, 5:10 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Charles, Prince George's | 50 min |
| Jul 8, 5:27 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Prince George's, Saint Mary's | 48 min |
| Jul 8, 5:52 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 12 more | 83 min |
| Jul 8, 5:53 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Charles, Prince George's | 26 min |
| Jul 8, 5:53 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's, Talbot | 82 min |
| Jul 8, 6:00 PM EDT | Special Weather Statement | LWX | Calvert, Charles, Saint Mary's | 90 min |
| Jul 8, 6:01 PM EDT | Special Weather Statement | AKQ | Dorchester, Somerset, Wicomico | 74 min |
| Jul 8, 6:23 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's, Talbot | 82 min |
| Jul 8, 6:32 PM EDT | Special Weather Statement | LWX | Calvert, Saint Mary's | 43 min |
| Jul 8, 6:34 PM EDT | Flash Flood Warning | LWX | Calvert, Charles, Saint Mary's | 76 min |
| Jul 8, 8:24 PM EDT | Special Weather Statement | AKQ | Somerset, Worcester | 71 min |
| Jul 9, 4:19 AM EDT | Dense Fog Advisory | LWX | Allegany, Washington | 4 hr |
| Jul 11, 1:31 PM EDT | Heat Advisory | LWX | Anne Arundel, Baltimore, Calvert, Charles, Prince George's, Saint Mary's and 1 more | 23 hr |
| Jul 11, 3:13 PM EDT | Heat Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 29 hr |
| Jul 11, 3:35 PM EDT | Heat Advisory | AKQ | Dorchester, Somerset, Wicomico, Worcester | 28 hr |
| Jul 11, 5:47 PM EDT | Severe Thunderstorm Watch | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 8 more | 5 hr |
| Jul 11, 5:49 PM EDT | Special Weather Statement | PBZ | Garrett | 26 min |
| Jul 11, 5:54 PM EDT | Mesoscale Discussion | SPC | Allegany, Garrett | 96 min |
| Jul 11, 6:40 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 35 min |
| Jul 11, 6:45 PM EDT | Special Weather Statement | LWX | Allegany | 30 min |
| Jul 11, 6:54 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 37 min |
| Jul 11, 6:58 PM EDT | Special Weather Statement | LWX | Frederick | 32 min |
| Jul 11, 7:05 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick, Washington | 40 min |
| Jul 11, 7:10 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Montgomery, Washington | 35 min |
| Jul 11, 7:34 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Frederick | 41 min |
| Jul 11, 7:42 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Howard, Montgomery | 48 min |
| Jul 11, 7:44 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Cecil and 12 more | 61 min |
| Jul 11, 8:06 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Howard, Montgomery, Prince George's | 39 min |
| Jul 11, 8:15 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Carroll, Harford, Howard, Montgomery and 1 more | 45 min |
| Jul 11, 8:46 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Charles, Howard, Montgomery, Prince George's | 44 min |
| Jul 11, 8:56 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Harford, Howard, City of Baltimore | 34 min |
| Jul 11, 9:01 PM EDT | Severe Thunderstorm Watch | SPC | Caroline, Cecil, Dorchester, Kent, Queen Anne's, Talbot and 1 more | 3 hr |
| Jul 11, 9:11 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent, Queen Anne's | 64 min |
| Jul 11, 9:17 PM EDT | Tornado Warning | LWX | Harford | 19 min |
| Jul 11, 9:25 PM EDT | Special Weather Statement | PHI | Queen Anne's, Talbot | 65 min |
| Jul 11, 9:26 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Charles, Prince George's, Saint Mary's | 64 min |
| Jul 11, 9:33 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 57 min |
| Jul 11, 10:03 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester, Wicomico | 57 min |
| Jul 11, 10:28 PM EDT | Special Weather Statement | LWX | Saint Mary's | 32 min |
| Jul 11, 10:28 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Talbot | 33 min |
| Jul 13, 1:43 PM EDT | Special Weather Statement | LWX | Frederick | 32 min |
| Jul 13, 2:00 PM EDT | Special Weather Statement | LWX | Montgomery | 30 min |
| Jul 13, 2:16 PM EDT | Special Weather Statement | LWX | Montgomery | 29 min |
| Jul 13, 2:21 PM EDT | Severe Thunderstorm Watch | SPC | Anne Arundel, Calvert, Caroline, Charles, Dorchester, Howard and 8 more | 8 hr |
| Jul 13, 3:13 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Prince George's | 47 min |
| Jul 13, 3:45 PM EDT | Flash Flood Warning | LWX | Charles, Prince George's | 3 hr |
| Jul 13, 4:02 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Charles, Prince George's, Saint Mary's | 43 min |
| Jul 13, 4:30 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Charles, Saint Mary's | 45 min |
| Jul 13, 4:30 PM EDT | Mesoscale Discussion | SPC | Calvert, Charles, Dorchester, Prince George's, Saint Mary's, Talbot | 90 min |
| Jul 14, 11:37 PM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Baltimore, Calvert, Charles, Prince George's, Saint Mary's and 1 more | 36 hr |
| Jul 14, 11:58 PM EDT | Coastal Flood Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 12 hr |
| Jul 18, 3:57 PM EDT | Severe Thunderstorm Watch | SPC | Garrett | 6 hr |
| Jul 19, 12:12 PM EDT | Excessive Heat Watch | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 4 more | 27 hr |
| Jul 19, 2:13 PM EDT | Special Weather Statement | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 92 min |
| Jul 19, 2:29 PM EDT | Excessive Heat Warning | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 5 days |
| Jul 19, 2:40 PM EDT | Special Weather Statement | AKQ | Worcester | 35 min |
| Jul 19, 3:20 PM EDT | Special Weather Statement | LWX | Carroll | 55 min |
| Jul 19, 3:22 PM EDT | Special Weather Statement | LWX | Baltimore | 53 min |
| Jul 19, 3:24 PM EDT | Special Weather Statement | LWX | City of Baltimore | 66 min |
| Jul 19, 3:28 PM EDT | Special Weather Statement | AKQ | Worcester | 62 min |
| Jul 19, 4:08 PM EDT | Special Weather Statement | LWX | Anne Arundel | 22 min |
| Jul 19, 4:25 PM EDT | Special Weather Statement | PHI | Caroline, Kent, Queen Anne's, Talbot | 80 min |
| Jul 19, 4:31 PM EDT | Special Weather Statement | LWX | Harford | 44 min |
| Jul 19, 4:34 PM EDT | Special Weather Statement | AKQ | Worcester | 56 min |
| Jul 19, 4:36 PM EDT | Special Weather Statement | AKQ | Worcester | 54 min |
| Jul 19, 4:41 PM EDT | Severe Thunderstorm Warning | AKQ | Worcester | 34 min |
| Jul 19, 5:00 PM EDT | Special Weather Statement | AKQ | Wicomico | 60 min |
| Jul 19, 5:23 PM EDT | Special Weather Statement | LWX | Washington | 22 min |
| Jul 19, 5:40 PM EDT | Special Weather Statement | AKQ | Worcester | 65 min |
| Jul 19, 5:57 PM EDT | Special Weather Statement | LWX | Washington | 48 min |
| Jul 19, 6:00 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 45 min |
| Jul 19, 6:32 PM EDT | Special Weather Statement | PHI | Caroline, Talbot | 88 min |
| Jul 19, 6:53 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Talbot | 38 min |
| Jul 19, 7:10 PM EDT | Special Weather Statement | AKQ | Dorchester | 65 min |
| Jul 19, 7:57 PM EDT | Special Weather Statement | LWX | Saint Mary's | 33 min |
| Jul 19, 8:02 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Saint Mary's | 43 min |
| Jul 19, 8:07 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 53 min |
| Jul 19, 8:45 PM EDT | Special Weather Statement | LWX | Charles, Saint Mary's | 45 min |
| Jul 19, 9:27 PM EDT | Special Weather Statement | PHI | Caroline, Kent, Queen Anne's, Talbot | 93 min |
| Jul 19, 10:14 PM EDT | Special Weather Statement | LWX | Baltimore | 31 min |
| Jul 19, 11:17 PM EDT | Special Weather Statement | LWX | Saint Mary's | 28 min |
| Jul 20, 3:23 AM EDT | Excessive Heat Watch | AKQ | Dorchester, Somerset, Wicomico, Worcester | 24 hr |
| Jul 20, 4:04 AM EDT | Excessive Heat Watch | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 11 hr |
| Jul 20, 11:32 AM EDT | Heat Advisory | PBZ | 30 hr | |
| Jul 20, 2:32 PM EDT | Special Weather Statement | AKQ | Somerset | 58 min |
| Jul 20, 3:05 PM EDT | Special Weather Statement | LWX | Prince George's | 55 min |
| Jul 20, 3:19 PM EDT | Excessive Heat Warning | LWX | Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 5 more | 31 hr |
| Jul 20, 3:19 PM EDT | Excessive Heat Warning | LWX | Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 5 more | 54 hr |
| Jul 20, 4:26 PM EDT | Excessive Heat Warning | AKQ | Dorchester, Somerset, Wicomico, Worcester | 3 days |
| Jul 20, 4:26 PM EDT | Heat Advisory | AKQ | Dorchester, Somerset, Wicomico, Worcester | 38 hr |
| Jul 20, 8:16 PM EDT | Heat Advisory | LWX | Allegany | 24 hr |
| Jul 20, 8:16 PM EDT | Heat Advisory | LWX | Allegany | 48 hr |
| Jul 21, 8:42 AM EDT | Special Weather Statement | PBZ | Garrett | 48 min |
| Jul 21, 8:53 AM EDT | Special Weather Statement | PBZ | Garrett | 37 min |
| Jul 21, 3:38 PM EDT | Excessive Heat Warning | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 3 more | 52 hr |
| Jul 21, 3:38 PM EDT | Heat Advisory | LWX | Allegany, Washington | 52 hr |
| Jul 22, 2:00 PM EDT | Special Weather Statement | LWX | Washington | 30 min |
| Jul 22, 2:07 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 38 min |
| Jul 22, 2:07 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 38 min |
| Jul 22, 2:43 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 47 min |
| Jul 22, 2:56 PM EDT | Flash Flood Warning | LWX | Washington | 106 min |
| Jul 22, 3:07 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 38 min |
| Jul 22, 3:07 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 45 min |
| Jul 22, 3:15 PM EDT | Special Weather Statement | LWX | Allegany | 30 min |
| Jul 22, 3:17 PM EDT | Mesoscale Discussion | SPC | Allegany, Carroll, Frederick, Garrett, Howard, Montgomery and 1 more | 58 min |
| Jul 22, 3:28 PM EDT | Special Weather Statement | LWX | Frederick | 32 min |
| Jul 22, 3:33 PM EDT | Special Weather Statement | LWX | Washington | 27 min |
| Jul 22, 4:26 PM EDT | Special Weather Statement | LWX | Montgomery | 19 min |
| Jul 22, 4:30 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 45 min |
| Jul 22, 5:19 PM EDT | Mesoscale Discussion | SPC | Allegany, Garrett | 56 min |
| Jul 22, 5:37 PM EDT | Severe Thunderstorm Watch | SPC | Garrett | 4 hr |
| Jul 22, 7:35 PM EDT | Special Weather Statement | LWX | Allegany | 20 min |
| Jul 22, 7:59 PM EDT | Special Weather Statement | LWX | Allegany | 16 min |
| Jul 22, 8:13 PM EDT | Mesoscale Discussion | SPC | Garrett | 62 min |
| Jul 22, 8:16 PM EDT | Special Weather Statement | LWX | Allegany | 29 min |
| Jul 22, 9:06 PM EDT | Special Weather Statement | LWX | Allegany | 24 min |
| Jul 23, 7:54 AM EDT | Special Weather Statement | LWX | Baltimore | 36 min |
| Jul 23, 12:16 PM EDT | Special Weather Statement | AKQ | Worcester | 59 min |
| Jul 23, 3:13 PM EDT | Special Weather Statement | AKQ | Worcester | 62 min |
| Jul 23, 3:29 PM EDT | Heat Advisory | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 3 more | 29 hr |
| Jul 23, 3:42 PM EDT | Special Weather Statement | AKQ | Worcester | 63 min |
| Jul 23, 3:44 PM EDT | Heat Advisory | AKQ | Dorchester, Somerset, Wicomico, Worcester | 28 hr |
| Jul 23, 7:09 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Prince George's | 36 min |
| Jul 23, 7:50 PM EDT | Special Weather Statement | LWX | Prince George's | 25 min |
| Jul 24, 3:48 AM EDT | Heat Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 16 hr |
| Jul 24, 1:06 PM EDT | Special Weather Statement | AKQ | Worcester | 34 min |
| Jul 24, 1:25 PM EDT | Severe Thunderstorm Warning | AKQ | Worcester | 50 min |
| Jul 24, 1:42 PM EDT | Special Weather Statement | PHI | Caroline | 63 min |
| Jul 24, 1:43 PM EDT | Special Weather Statement | AKQ | Worcester | 62 min |
| Jul 24, 2:13 PM EDT | Severe Thunderstorm Warning | PHI | Kent, Queen Anne's, Talbot | 36 min |
| Jul 24, 2:44 PM EDT | Special Weather Statement | AKQ | Worcester | 76 min |
| Jul 24, 3:10 PM EDT | Special Weather Statement | PHI | Kent | 65 min |
| Jul 24, 3:22 PM EDT | Areal Flood Advisory | AKQ | Wicomico, Worcester | 84 min |
| Jul 24, 4:02 PM EDT | Special Weather Statement | AKQ | Worcester | 58 min |
| Jul 24, 4:06 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's | 54 min |
| Jul 24, 4:23 PM EDT | Areal Flood Advisory | AKQ | Wicomico | 37 min |
| Jul 24, 4:29 PM EDT | Special Weather Statement | AKQ | Wicomico | 61 min |
| Jul 24, 4:43 PM EDT | Special Weather Statement | PHI | Kent, Queen Anne's | 62 min |
| Jul 24, 4:57 PM EDT | Special Weather Statement | AKQ | Worcester | 33 min |
| Jul 24, 5:57 PM EDT | Special Weather Statement | PHI | Caroline, Kent, Queen Anne's | 63 min |
| Jul 24, 6:41 PM EDT | Special Weather Statement | PHI | Talbot | 64 min |
| Jul 24, 7:35 PM EDT | Special Weather Statement | PHI | Talbot | 55 min |
| Jul 25, 2:01 AM EDT | Flash Flood Warning | LWX | Calvert, Saint Mary's | 2 hr |
| Jul 25, 2:16 AM EDT | Special Weather Statement | AKQ | Dorchester | 44 min |
| Jul 25, 2:45 AM EDT | Special Weather Statement | AKQ | Wicomico | 60 min |
| Jul 25, 12:25 PM EDT | Special Weather Statement | LWX | Carroll | 35 min |
| Jul 25, 12:55 PM EDT | Special Weather Statement | LWX | Carroll | 35 min |
| Jul 25, 1:12 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 9 more | 2 hr |
| Jul 25, 1:28 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll | 32 min |
| Jul 25, 3:16 PM EDT | Flash Flood Warning | LWX | Anne Arundel, Baltimore, Howard, Montgomery, Prince George's, City of Baltimore | 97 min |
| Jul 25, 3:25 PM EDT | Special Weather Statement | LWX | Calvert | 35 min |
| Jul 25, 3:37 PM EDT | Flash Flood Warning | LWX | Charles | 2 hr |
| Jul 25, 3:48 PM EDT | Special Weather Statement | LWX | Anne Arundel | 42 min |
| Jul 25, 3:54 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Prince George's | 46 min |
| Jul 25, 3:54 PM EDT | Special Weather Statement | PHI | Caroline, Kent, Queen Anne's, Talbot | 66 min |
| Jul 25, 4:15 PM EDT | Special Weather Statement | LWX | Calvert | 30 min |
| Jul 25, 4:26 PM EDT | Special Weather Statement | PHI | Caroline, Kent, Queen Anne's, Talbot | 94 min |
| Jul 25, 4:28 PM EDT | Special Weather Statement | AKQ | Wicomico | 62 min |
| Jul 25, 4:49 PM EDT | Areal Flood Advisory | PHI | Kent, Queen Anne's | 100 min |
| Jul 25, 4:50 PM EDT | Areal Flood Advisory | AKQ | Wicomico | 100 min |
| Jul 25, 5:02 PM EDT | Areal Flood Advisory | PHI | Caroline | 2 hr |
| Jul 25, 5:54 PM EDT | Special Weather Statement | LWX | Saint Mary's | 36 min |
| Jul 25, 6:04 PM EDT | Special Weather Statement | AKQ | Somerset | 26 min |
| Jul 25, 10:17 PM EDT | Areal Flood Advisory | PHI | Cecil, Kent | 3 hr |
| Jul 25, 10:58 PM EDT | Special Weather Statement | LWX | Harford | 62 min |
| Jul 26, 12:18 AM EDT | Coastal Flood Advisory | LWX | Anne Arundel | 5 hr |
| Jul 27, 1:57 AM EDT | Coastal Flood Advisory | LWX | Anne Arundel | 3 hr |
| Jul 28, 12:53 PM EDT | Heat Advisory | LWX | Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 5 more | 31 hr |
| Jul 28, 1:46 PM EDT | Coastal Flood Advisory | LWX | Anne Arundel | 18 hr |
| Jul 28, 2:00 PM EDT | Heat Advisory | AKQ | Dorchester, Somerset, Wicomico, Worcester | 30 hr |
| Jul 28, 3:53 PM EDT | Heat Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 30 hr |
| Jul 28, 9:10 PM EDT | Special Weather Statement | PHI | Caroline, Kent, Queen Anne's | 65 min |
| Jul 28, 9:26 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 45 min |
| Jul 29, 5:54 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 51 min |
| Jul 29, 6:17 PM EDT | Mesoscale Discussion | SPC | Allegany, Baltimore, Carroll, Cecil, Frederick, Garrett and 5 more | 88 min |
| Jul 29, 6:34 PM EDT | Special Weather Statement | LWX | Washington | 26 min |
| Jul 29, 6:52 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 38 min |
| Jul 29, 6:58 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 32 min |
| Jul 31, 12:30 PM EDT | Special Weather Statement | PHI | Caroline | 60 min |
| Jul 31, 1:23 PM EDT | Special Weather Statement | PHI | Caroline | 82 min |
| Jul 31, 2:39 PM EDT | Special Weather Statement | PHI | Talbot | 96 min |
| Jul 31, 3:58 PM EDT | Severe Thunderstorm Warning | PHI | Kent, Queen Anne's | 36 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 | 64 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 8 |
| Mesoscale Discussion | 14 |
| Special Weather Statement | 131 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 18 |
| Flash Flood Watch | 3 |
| Areal Flood Advisory | 7 |
| Heat | |
| Excessive Heat Warning | 5 |
| Excessive Heat Watch | 3 |
| Heat Advisory | 14 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
| Coast and beach | |
| Coastal Flood Advisory | 5 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Anne Arundel County42
- Prince George's County41
- Baltimore County40
- Talbot County38
- Caroline County37
- Charles County36
- Queen Anne's County36
- Frederick County35
- Washington County35
- Calvert County35
- Saint Mary's County33
- Kent County33
- City of Baltimore32
- Carroll County31
- Allegany County31
- Montgomery County31
- Worcester County30
- Harford County23
- Cecil County23
- Howard County22
- Wicomico County21
- Garrett County20
- Dorchester County18
- Somerset County15
Nearby
Alerts in force nowTornadoes on recordThe radar archive20102012
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.