Weather alerts in Maryland, 2005
302 weather alerts in 2005, 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 2005. Tap one for its archive.
- Alerts
- 302
- Warnings
- 153
- Watches
- 28
- Advisories
- 51
- Busiest month
- July55 alerts
- Busiest day
- June 6, 200517 alerts
Over time
By month
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 |
|---|---|---|---|---|
| Jan 14, 1:55 AM EST | Tornado Watch | SPC | Anne Arundel, Calvert, Caroline, Charles, Dorchester, Prince George's and 6 more | 5 hr |
| Jan 14, 2:36 AM EST | Mesoscale Discussion | SPC | Baltimore, Cecil, Harford, Howard, Kent, Montgomery and 1 more | 114 min |
| Jan 14, 4:15 AM EST | Mesoscale Discussion | SPC | Anne Arundel, Calvert, Caroline, Charles, Dorchester, Prince George's and 5 more | 90 min |
| Jan 14, 5:00 AM EST | Tornado Watch | SPC | Calvert, Charles, Dorchester, Saint Mary's, Somerset, Talbot and 2 more | 6 hr |
| Jan 14, 5:11 AM EST | Severe Thunderstorm Warning | LWX | Charles | 49 min |
| Jan 14, 7:05 AM EST | Mesoscale Discussion | SPC | Dorchester, Saint Mary's, Somerset, Talbot, Wicomico, Worcester | 85 min |
| Jan 14, 7:36 AM EST | Severe Thunderstorm Warning | AKQ | Dorchester | 219 days |
| Jan 22, 7:41 AM EST | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Caroline, Carroll and 17 more | 6 hr |
| Jan 22, 2:00 PM EST | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Caroline, Cecil, Harford, Kent and 3 more | 5 hr |
| Jan 30, 1:59 AM EST | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Caroline, Carroll and 18 more | 6 hr |
| Jan 30, 7:38 AM EST | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 16 more | 4 hr |
| Feb 3, 7:54 AM EST | Mesoscale Discussion | SPC | Washington | 4 hr |
| Feb 24, 6:58 AM EST | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Cecil, Charles and 12 more | 5 hr |
| Feb 24, 2:07 PM EST | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 16 more | 4 hr |
| Feb 28, 8:16 AM EST | Mesoscale Discussion | SPC | Allegany, Baltimore, Carroll, Frederick, Garrett, Howard and 2 more | 4 hr |
| Feb 28, 1:22 PM EST | Mesoscale Discussion | SPC | Allegany, Baltimore, Carroll, Frederick, Garrett, Harford and 5 more | 5 hr |
| Mar 23, 6:16 PM EST | Severe Thunderstorm Warning | AKQ | Dorchester | 181 days |
| Mar 28, 1:47 PM EST | Flash Flood Warning | LWX | Baltimore, Harford, City of Baltimore | 118 min |
| Mar 28, 2:17 PM EST | Mesoscale Discussion | SPC | Calvert, Caroline, Charles, Dorchester, Saint Mary's, Somerset and 3 more | 118 min |
| Mar 28, 4:32 PM EST | Flash Flood Warning | LWX | Montgomery | 3 hr |
| Mar 28, 5:12 PM EST | Flash Flood Warning | LWX | Frederick, Washington | 2 hr |
| Mar 28, 5:24 PM EST | Flash Flood Warning | LWX | Baltimore, Carroll | 2 hr |
| Mar 28, 5:38 PM EST | Flash Flood Warning | LWX | Allegany | 3 hr |
| Mar 28, 7:15 PM EST | Flash Flood Warning | LWX | Frederick, Washington | 3 hr |
| Mar 28, 8:35 PM EST | Flash Flood Warning | LWX | Allegany | 4 hr |
| Mar 28, 10:00 PM EST | Flash Flood Warning | LWX | Frederick, Washington | 4 hr |
| Mar 29, 12:30 AM EST | Flash Flood Warning | LWX | Allegany | 3 hr |
| Mar 29, 2:01 AM EST | Flash Flood Warning | LWX | Washington | 3 hr |
| Mar 29, 5:03 AM EST | Flash Flood Warning | LWX | Washington | 117 min |
| Apr 2, 8:29 AM EST | Mesoscale Discussion | SPC | Calvert, Caroline, Charles, Dorchester, Saint Mary's, Somerset and 3 more | 91 min |
| Apr 2, 10:56 AM EST | Severe Thunderstorm Warning | LWX | Prince George's | 64 min |
| Apr 2, 11:24 AM EST | Severe Thunderstorm Warning | LWX | Howard | 36 min |
| Apr 2, 1:34 PM EST | Severe Thunderstorm Warning | PHI | Kent, Queen Anne's | 41 min |
| Apr 2, 6:35 PM EST | Severe Thunderstorm Warning | LWX | Montgomery | 96 min |
| Apr 2, 8:37 PM EST | Flash Flood Warning | LWX | Anne Arundel, Howard, Montgomery | 4 hr |
| Apr 2, 9:17 PM EST | Flash Flood Warning | LWX | Baltimore, City of Baltimore | 118 min |
| Apr 2, 11:23 PM EST | Flash Flood Warning | LWX | Baltimore, City of Baltimore | 4 hr |
| Apr 3, 3:03 AM EDT | Mesoscale Discussion | SPC | Allegany, Garrett | 4 hr |
| Apr 23, 12:35 PM EDT | Mesoscale Discussion | SPC | Carroll, Charles, Frederick, Howard, Montgomery, Washington | 115 min |
| Apr 23, 1:10 PM EDT | Severe Thunderstorm Watch | SPC | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 7 more | 7 hr |
| Apr 23, 3:17 PM EDT | Mesoscale Discussion | SPC | Calvert, Carroll, Charles, Frederick, Howard, Montgomery and 3 more | 88 min |
| Apr 23, 4:17 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 58 min |
| Apr 23, 4:26 PM EDT | Mesoscale Discussion | SPC | Caroline, Cecil, Dorchester, Kent, Queen Anne's, Saint Mary's and 4 more | 94 min |
| Apr 23, 4:50 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 40 min |
| Apr 23, 4:52 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 53 min |
| Apr 23, 5:16 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 59 min |
| Apr 23, 5:33 PM EDT | Severe Thunderstorm Warning | PHI | Talbot | 42 min |
| Apr 23, 5:47 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore | 58 min |
| Apr 23, 6:34 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 26 min |
| Apr 23, 7:16 PM EDT | Mesoscale Discussion | SPC | Calvert, Caroline, Cecil, Dorchester, Harford, Kent and 6 more | 59 min |
| May 10, 2:55 PM EDT | Mesoscale Discussion | SPC | Garrett | 95 min |
| May 14, 1:59 PM EDT | Mesoscale Discussion | SPC | Allegany, Garrett | 91 min |
| May 14, 3:05 PM EDT | Severe Thunderstorm Watch | SPC | Garrett | 6 hr |
| May 14, 3:25 PM EDT | Mesoscale Discussion | SPC | Carroll, Charles, Frederick, Howard, Montgomery, Prince George's | 95 min |
| May 14, 4:52 PM EDT | Mesoscale Discussion | SPC | Garrett | 83 min |
| May 14, 5:06 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 25 min |
| May 14, 5:59 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 46 min |
| May 14, 6:32 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 43 min |
| May 14, 6:41 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 25 min |
| May 14, 6:44 PM EDT | Severe Thunderstorm Warning | PHI | Queen Anne's, Talbot | 61 min |
| May 14, 6:50 PM EDT | Severe Thunderstorm Warning | LWX | Calvert | 27 min |
| May 14, 7:45 PM EDT | Severe Thunderstorm Warning | PHI | Queen Anne's, Talbot | 31 min |
| May 14, 8:17 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 43 min |
| May 14, 8:33 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 42 min |
| May 14, 8:33 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 42 min |
| May 14, 8:33 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 42 min |
| May 14, 9:11 PM EDT | Severe Thunderstorm Warning | PHI | Queen Anne's | 49 min |
| May 14, 9:22 PM EDT | Severe Thunderstorm Warning | PHI | Talbot | 38 min |
| May 23, 1:16 PM EDT | Mesoscale Discussion | SPC | Saint Mary's | 89 min |
| May 23, 3:50 PM EDT | Severe Thunderstorm Watch | SPC | Charles | 6 hr |
| May 23, 5:12 PM EDT | Mesoscale Discussion | SPC | Charles | 93 min |
| May 23, 5:36 PM EDT | Mesoscale Discussion | SPC | Charles | 84 min |
| May 28, 1:18 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Caroline, Carroll, Cecil, Harford and 7 more | 87 min |
| May 28, 3:24 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's | 36 min |
| Jun 6, 12:46 PM EDT | Mesoscale Discussion | SPC | Allegany, Garrett | 59 min |
| Jun 6, 1:00 PM EDT | Severe Thunderstorm Watch | SPC | Garrett | 7 hr |
| Jun 6, 1:34 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 5 more | 56 min |
| Jun 6, 1:55 PM EDT | Severe Thunderstorm Watch | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Caroline, Carroll and 12 more | 8 hr |
| Jun 6, 4:28 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 50 min |
| Jun 6, 5:00 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Carroll, Cecil, Frederick and 9 more | 90 min |
| Jun 6, 5:32 PM EDT | Mesoscale Discussion | SPC | Garrett | 88 min |
| Jun 6, 6:04 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick | 44 min |
| Jun 6, 6:15 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 45 min |
| Jun 6, 6:17 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, City of Baltimore | 80 min |
| Jun 6, 6:22 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 74 min |
| Jun 6, 6:34 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Cecil, Harford, Howard, Kent and 2 more | 86 min |
| Jun 6, 6:50 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 55 min |
| Jun 6, 7:10 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 68 min |
| Jun 6, 7:15 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's | 60 min |
| Jun 6, 7:23 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 70 min |
| Jun 6, 7:46 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 62 min |
| Jun 6, 9:57 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, City of Baltimore | 63 min |
| Jun 6, 11:40 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 36 min |
| Jun 9, 6:19 PM EDT | Flash Flood Warning | LWX | Howard | 3 hr |
| Jun 14, 4:40 PM EDT | Severe Thunderstorm Watch | SPC | Garrett | 6 hr |
| Jun 14, 6:12 PM EDT | Mesoscale Discussion | SPC | Allegany, Garrett | 93 min |
| Jun 14, 7:26 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 64 min |
| Jun 14, 11:18 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 17 min |
| Jun 22, 3:20 PM EDT | Mesoscale Discussion | SPC | Baltimore, Carroll, Cecil, Frederick, Harford, Howard and 3 more | 115 min |
| Jun 22, 5:28 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 47 min |
| Jun 28, 3:36 PM EDT | Flash Flood Warning | PHI | Cecil, Kent | 3 hr |
| Jun 28, 3:37 PM EDT | Flash Flood Warning | LWX | City of Baltimore | 113 min |
| Jun 28, 4:04 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, City of Baltimore | 56 min |
| Jun 28, 4:33 PM EDT | Severe Thunderstorm Warning | LWX | Carroll | 43 min |
| Jun 28, 4:57 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore | 63 min |
| Jun 28, 5:17 PM EDT | Flash Flood Warning | LWX | Baltimore | 3 hr |
| Jun 28, 5:50 PM EDT | Severe Thunderstorm Warning | LWX | Howard | 41 min |
| Jun 28, 7:02 PM EDT | Flash Flood Warning | LWX | City of Baltimore | 3 hr |
| Jun 29, 5:51 PM EDT | Severe Thunderstorm Warning | LWX | Frederick | 40 min |
| Jun 29, 6:45 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 50 min |
| Jul 1, 10:55 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 50 min |
| Jul 5, 6:03 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 46 min |
| Jul 5, 7:25 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Prince George's | 32 min |
| Jul 5, 11:43 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 31 min |
| Jul 7, 3:33 PM EDT | Flash Flood Warning | LWX | Baltimore | 117 min |
| Jul 7, 3:53 PM EDT | Tornado Warning | LWX | Baltimore | 37 min |
| Jul 7, 4:29 PM EDT | Tornado Warning | LWX | Baltimore | 20 min |
| Jul 7, 6:01 PM EDT | Mesoscale Discussion | SPC | Charles | 59 min |
| Jul 7, 8:13 PM EDT | Flash Flood Warning | LWX | Frederick | 2 hr |
| Jul 7, 9:40 PM EDT | Tornado Watch | SPC | Saint Mary's, Somerset, Worcester | 5 hr |
| Jul 7, 11:56 PM EDT | Mesoscale Discussion | SPC | Saint Mary's, Somerset | 94 min |
| Jul 12, 4:27 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 48 min |
| Jul 13, 2:27 PM EDT | Mesoscale Discussion | SPC | Allegany, Garrett | 93 min |
| Jul 13, 4:32 PM EDT | Flash Flood Warning | LWX | Allegany | 4 hr |
| Jul 13, 5:02 PM EDT | Flash Flood Warning | PBZ | Garrett | 118 min |
| Jul 15, 12:21 PM EDT | Flash Flood Warning | AKQ | Worcester | 54 min |
| Jul 15, 3:15 PM EDT | Flash Flood Warning | LWX | Montgomery | 3 hr |
| Jul 16, 11:15 AM EDT | Flash Flood Warning | LWX | Baltimore | 4 hr |
| Jul 16, 12:51 PM EDT | Flash Flood Warning | LWX | City of Baltimore | 4 hr |
| Jul 16, 1:00 PM EDT | Flash Flood Warning | LWX | Carroll | 4 hr |
| Jul 16, 1:54 PM EDT | Flash Flood Warning | LWX | Anne Arundel | 3 hr |
| Jul 16, 3:44 PM EDT | Heat Advisory | LWX | Anne Arundel, Baltimore, Calvert, Cecil, Charles, Frederick and 2 more | 3 days |
| Jul 16, 9:42 PM EDT | Flash Flood Warning | LWX | Prince George's | 3 hr |
| Jul 19, 3:51 PM EDT | Mesoscale Discussion | SPC | Calvert, Charles, Saint Mary's | 114 min |
| Jul 19, 5:23 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 48 min |
| Jul 21, 1:45 PM EDT | Mesoscale Discussion | SPC | Allegany, Charles, Frederick, Montgomery, Prince George's, Saint Mary's and 1 more | 2 hr |
| Jul 22, 11:25 PM EDT | Severe Thunderstorm Warning | LWX | Carroll | 35 min |
| Jul 23, 12:42 AM EDT | Severe Thunderstorm Warning | LWX | Howard, Montgomery | 52 min |
| Jul 23, 1:26 AM EDT | Severe Thunderstorm Warning | LWX | Montgomery, Prince George's | 49 min |
| Jul 23, 2:17 AM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 29 min |
| Jul 23, 2:30 AM EDT | Severe Thunderstorm Warning | LWX | Charles | 20 min |
| Jul 24, 2:38 PM EDT | Heat Advisory | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 4 more | 53 hr |
| Jul 24, 4:34 PM EDT | Heat Advisory | AKQ | Dorchester, Somerset, Wicomico, Worcester | 28 hr |
| Jul 25, 5:33 PM EDT | Mesoscale Discussion | SPC | Allegany, Charles, Frederick, Garrett, Howard, Montgomery and 2 more | 57 min |
| Jul 25, 6:00 PM EDT | Severe Thunderstorm Watch | SPC | Allegany, Garrett, Washington | 3 hr |
| Jul 25, 6:32 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 58 min |
| Jul 25, 7:34 PM EDT | Mesoscale Discussion | SPC | Washington | 56 min |
| Jul 26, 7:16 PM EDT | Mesoscale Discussion | SPC | Allegany, Carroll, Frederick, Garrett, Washington | 89 min |
| Jul 27, 11:55 AM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Caroline, Carroll and 14 more | 2 hr |
| Jul 27, 1:50 PM EDT | Severe Thunderstorm Watch | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 15 more | 8 hr |
| Jul 27, 3:35 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 14 more | 115 min |
| Jul 27, 4:19 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 41 min |
| Jul 27, 4:35 PM EDT | Tornado Warning | LWX | Washington | 26 min |
| Jul 27, 4:49 PM EDT | Severe Thunderstorm Warning | LWX | Frederick | 41 min |
| Jul 27, 5:33 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Montgomery | 42 min |
| Jul 27, 5:57 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, City of Baltimore | 48 min |
| Jul 27, 6:12 PM EDT | Severe Thunderstorm Warning | LWX | Howard, Montgomery | 48 min |
| Jul 27, 6:19 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 41 min |
| Jul 27, 6:32 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Cecil, Charles and 11 more | 88 min |
| Jul 27, 6:38 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, City of Baltimore | 52 min |
| Jul 27, 6:41 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 49 min |
| Jul 27, 6:50 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 40 min |
| Jul 27, 7:10 PM EDT | Severe Thunderstorm Warning | PHI | Kent, Queen Anne's | 65 min |
| Jul 27, 7:21 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Talbot | 54 min |
| Jul 30, 9:09 AM EDT | Tornado Warning | AKQ | Somerset | 29 min |
| Aug 3, 3:22 AM EDT | Heat Advisory | LWX | Baltimore, City of Baltimore | 17 hr |
| Aug 3, 2:54 PM EDT | Heat Advisory | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 3 more | 29 hr |
| Aug 5, 4:52 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 53 min |
| Aug 5, 6:39 PM EDT | Severe Thunderstorm Warning | PHI | Kent | 36 min |
| Aug 5, 7:51 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 54 min |
| Aug 5, 7:57 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 33 min |
| Aug 5, 8:07 PM EDT | Severe Thunderstorm Warning | PHI | Queen Anne's, Talbot | 38 min |
| Aug 5, 9:00 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Talbot | 45 min |
| Aug 6, 2:33 PM EDT | Flash Flood Warning | AKQ | Worcester | 57 min |
| Aug 7, 11:28 AM EDT | Severe Thunderstorm Warning | PHI | Kent, Queen Anne's | 34 min |
| Aug 7, 11:38 AM EDT | Tornado Warning | PHI | Queen Anne's | 21 min |
| Aug 7, 12:09 PM EDT | Severe Thunderstorm Warning | PHI | Caroline | 39 min |
| Aug 8, 6:31 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 18 min |
| Aug 8, 6:47 PM EDT | Severe Thunderstorm Warning | LWX | Howard | 30 min |
| Aug 8, 8:49 PM EDT | Severe Thunderstorm Warning | PHI | Queen Anne's | 26 min |
| Aug 9, 10:30 AM EDT | Flash Flood Warning | LWX | Saint Mary's | 4 hr |
| Aug 11, 3:39 PM EDT | Heat Advisory | LWX | Anne Arundel, Baltimore, Charles, Prince George's, City of Baltimore | 28 hr |
| Aug 12, 3:18 PM EDT | Heat Advisory | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 3 more | 52 hr |
| Aug 16, 1:05 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 43 min |
| Aug 16, 3:55 PM EDT | Severe Thunderstorm Watch | SPC | Saint Mary's | 6 hr |
| Aug 16, 5:16 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 59 min |
| Aug 16, 5:45 PM EDT | Tornado Warning | AKQ | Dorchester | 46 min |
| Aug 19, 2:43 PM EDT | Heat Advisory | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 3 more | 27 hr |
| Aug 20, 7:10 PM EDT | Mesoscale Discussion | SPC | Allegany, Garrett, Washington | 95 min |
| Aug 20, 9:34 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 56 min |
| Aug 21, 4:00 AM EDT | Heat Advisory | LWX | Calvert, Saint Mary's | 14 hr |
| Aug 29, 5:15 AM EDT | Dense Fog Advisory | LWX | Washington | 5 hr |
| Aug 30, 3:37 AM EDT | Wind Advisory | PBZ | 17 hr | |
| Aug 30, 6:35 PM EDT | Tornado Watch | SPC | Calvert, Charles, Frederick, Montgomery, Prince George's | 5 hr |
| Aug 30, 8:25 PM EDT | Mesoscale Discussion | SPC | Calvert, Charles, Frederick, Montgomery, Prince George's | 2 hr |
| Aug 30, 10:19 PM EDT | Mesoscale Discussion | SPC | Baltimore, Carroll, Harford, Howard, Washington, City of Baltimore | 116 min |
| Aug 30, 11:14 PM EDT | Severe Thunderstorm Warning | LWX | Frederick | 51 min |
| Sep 14, 2:04 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 56 min |
| Sep 15, 8:27 AM EDT | Flash Flood Warning | PHI | Cecil | 3 hr |
| Sep 17, 5:06 PM EDT | Mesoscale Discussion | SPC | Caroline, Cecil, Kent, Queen Anne's, Wicomico | 84 min |
| Sep 17, 8:28 PM EDT | Severe Thunderstorm Warning | LWX | Saint Mary's | 47 min |
| Sep 17, 8:58 PM EDT | Severe Thunderstorm Warning | LWX | Calvert | 28 min |
| Sep 20, 12:39 PM EDT | Mesoscale Discussion | SPC | Charles, Montgomery, Prince George's | 96 min |
| Sep 20, 2:00 PM EDT | Severe Thunderstorm Watch | SPC | Saint Mary's, Somerset, Wicomico, Worcester | 7 hr |
| Sep 20, 4:14 PM EDT | Mesoscale Discussion | SPC | Calvert, Caroline, Dorchester, Talbot, Wicomico | 2 hr |
| Sep 23, 3:48 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Charles and 14 more | 117 min |
| Sep 28, 8:55 PM EDT | Wind Advisory | PBZ | 12 hr | |
| Sep 29, 3:40 AM EDT | Mesoscale Discussion | SPC | Garrett | 2 hr |
| Sep 29, 5:25 AM EDT | Wind Advisory | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 4 more | 5 hr |
| Sep 29, 2:58 PM EDT | Frost Advisory | LWX | 17 hr | |
| Sep 29, 5:27 PM EDT | Frost Advisory | PBZ | 16 hr | |
| Oct 24, 4:51 AM EDT | Wind Advisory | AKQ | Worcester | 34 hr |
| Oct 25, 8:40 AM EDT | Mesoscale Discussion | SPC | Allegany, Garrett | 5 hr |
| Oct 26, 3:40 AM EDT | Frost Advisory | PHI | Cecil | 24 hr |
| Oct 26, 5:24 AM EDT | Frost Advisory | LWX | Baltimore, Carroll, Frederick, Washington | 27 hr |
| Oct 28, 4:27 AM EDT | Frost Advisory | LWX | Anne Arundel, Baltimore, Carroll, Frederick, Prince George's, Washington | 28 hr |
| Oct 28, 3:15 PM EDT | Frost Advisory | PHI | Cecil | 16 hr |
| Oct 29, 4:35 AM EDT | Frost Advisory | LWX | Anne Arundel, Calvert, Charles, Prince George's, Saint Mary's | 27 hr |
| Oct 29, 4:35 AM EDT | Freeze Warning | LWX | Baltimore, Carroll, Frederick, Washington, City of Baltimore | 27 hr |
| Oct 30, 2:58 PM EST | Frost Advisory | LWX | Baltimore, Carroll, Frederick, Washington | 17 hr |
| Nov 5, 1:48 PM EST | Wind Advisory | PBZ | 28 hr | |
| Nov 6, 1:25 PM EST | Mesoscale Discussion | SPC | Garrett | 2 hr |
| Nov 6, 2:58 PM EST | Mesoscale Discussion | SPC | Washington | 92 min |
| Nov 6, 7:40 PM EST | Severe Thunderstorm Warning | LWX | Baltimore, Howard, City of Baltimore | 33 min |
| Nov 6, 8:14 PM EST | Mesoscale Discussion | SPC | Baltimore, Caroline, Cecil, Harford, Kent, Queen Anne's and 1 more | 2 hr |
| Nov 9, 3:53 AM EST | Dense Fog Advisory | PBZ | 6 hr | |
| Nov 9, 8:04 PM EST | Mesoscale Discussion | SPC | Garrett | 56 min |
| Nov 10, 4:15 AM EST | Wind Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 11 hr |
| Nov 11, 4:17 AM EST | Freeze Warning | AKQ | Dorchester, Somerset, Wicomico, Worcester | 28 hr |
| Nov 11, 1:27 PM EST | Freeze Warning | LWX | Anne Arundel, Baltimore, Calvert, Charles, Prince George's, Saint Mary's and 1 more | 17 hr |
| Nov 11, 2:54 PM EST | Freeze Warning | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 17 hr |
| Nov 15, 8:46 PM EST | Wind Advisory | PBZ | 15 hr | |
| Nov 16, 3:29 AM EST | High Wind Watch | LWX | Washington | 5 hr |
| Nov 16, 5:38 AM EST | Mesoscale Discussion | SPC | Carroll, Frederick, Howard, Montgomery, Washington | 2 hr |
| Nov 16, 12:33 PM EST | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Cecil, Charles and 9 more | 87 min |
| Nov 21, 3:08 PM EST | Snow Advisory | LWX | 40 hr | |
| Nov 22, 3:05 PM EST | Snow Advisory | PBZ | 8 hr | |
| Nov 22, 11:20 PM EST | Heavy Snow Warning | PBZ | 4 hr | |
| Nov 23, 3:32 AM EST | Winter Storm Watch | PBZ | 12 hr | |
| Nov 23, 4:08 AM EST | Winter Storm Watch | LWX | 8 hr | |
| Nov 23, 11:54 AM EST | Snow Advisory | LWX | 31 hr | |
| Nov 23, 3:16 PM EST | Heavy Snow Warning | PBZ | 10 hr | |
| Nov 23, 9:00 PM EST | Wind Advisory | PBZ | 26 hr | |
| Nov 24, 2:59 AM EST | Heavy Snow Warning | PBZ | 20 hr | |
| Nov 24, 3:54 AM EST | Wind Advisory | LWX | Washington | 15 hr |
| Nov 24, 10:08 PM EST | Wind Chill Advisory | LWX | 9 hr | |
| Nov 29, 6:04 PM EST | Tornado Watch | SPC | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Dorchester and 11 more | 7 hr |
| Nov 29, 6:12 PM EST | Severe Thunderstorm Warning | LWX | Washington | 48 min |
| Nov 29, 6:31 PM EST | Severe Thunderstorm Warning | LWX | Frederick | 59 min |
| Nov 29, 6:51 PM EST | Flash Flood Warning | LWX | Washington | 3 hr |
| Nov 29, 6:53 PM EST | Mesoscale Discussion | SPC | Carroll, Frederick, Howard, Montgomery | 67 min |
| Nov 29, 7:31 PM EST | Severe Thunderstorm Warning | LWX | Frederick, Montgomery | 89 min |
| Nov 29, 7:51 PM EST | Flash Flood Warning | LWX | Frederick | 4 hr |
| Nov 29, 8:20 PM EST | Mesoscale Discussion | SPC | Charles, Saint Mary's | 55 min |
| Nov 29, 9:41 PM EST | Mesoscale Discussion | SPC | Calvert, Caroline, Dorchester, Kent, Queen Anne's, Saint Mary's and 4 more | 64 min |
| Dec 2, 8:43 AM EST | Heavy Snow Warning | PBZ | 11 hr | |
| Dec 2, 9:34 AM EST | Snow Advisory | LWX | 10 hr | |
| Dec 3, 3:45 AM EST | Winter Weather Advisory | PBZ | 24 hr | |
| Dec 3, 4:06 AM EST | Winter Weather Advisory | LWX | Baltimore, Carroll, Frederick, Washington, City of Baltimore | 27 hr |
| Dec 3, 7:56 PM EST | Mesoscale Discussion | SPC | Allegany, Garrett, Washington | 6 hr |
| Dec 4, 1:04 AM EST | Mesoscale Discussion | SPC | Allegany, Baltimore, Carroll, Frederick, Garrett, Howard and 2 more | 4 hr |
| Dec 4, 3:54 AM EST | Winter Storm Watch | AKQ | Dorchester, Somerset, Wicomico, Worcester | 50 hr |
| Dec 4, 4:04 AM EST | Winter Storm Watch | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 4 more | 5 days |
| Dec 4, 4:43 AM EST | Winter Weather Advisory | PHI | Cecil | 4 hr |
| Dec 4, 3:47 PM EST | Winter Storm Watch | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 38 hr |
| Dec 4, 10:16 PM EST | Heavy Snow Warning | LWX | Calvert, Charles, Saint Mary's, Washington | 4 days |
| Dec 4, 10:34 PM EST | Winter Storm Warning | AKQ | Dorchester, Somerset, Wicomico | 32 hr |
| Dec 5, 2:58 AM EST | Snow Advisory | LWX | Anne Arundel, Baltimore, Carroll, Frederick, Prince George's, Washington and 1 more | 26 hr |
| Dec 5, 4:06 AM EST | Winter Weather Advisory | AKQ | Somerset, Wicomico, Worcester | 26 hr |
| Dec 5, 4:38 AM EST | Winter Storm Warning | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 25 hr |
| Dec 5, 1:54 PM EST | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 14 more | 6 hr |
| Dec 5, 10:34 PM EST | Snow Advisory | PHI | Cecil, Kent, Queen Anne's | 7 hr |
| Dec 7, 2:04 AM EST | Winter Storm Watch | PBZ | 51 hr | |
| Dec 7, 1:41 PM EST | Winter Storm Watch | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 4 more | 8 days |
| Dec 7, 3:08 PM EST | Winter Storm Watch | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 43 hr |
| Dec 7, 3:51 PM EST | Winter Storm Watch | AKQ | Dorchester | 41 hr |
| Dec 8, 2:15 AM EST | Heavy Snow Warning | PBZ | 27 hr | |
| Dec 8, 4:28 AM EST | Winter Weather Advisory | AKQ | Dorchester | 29 hr |
| Dec 8, 4:49 AM EST | Winter Storm Warning | PHI | Cecil, Kent | 29 hr |
| Dec 8, 4:49 AM EST | Winter Weather Advisory | PHI | Caroline, Queen Anne's, Talbot | 29 hr |
| Dec 8, 4:53 AM EST | Winter Storm Warning | LWX | Anne Arundel, Baltimore, Carroll, Frederick, Prince George's, Washington and 1 more | 27 hr |
| Dec 8, 2:00 PM EST | Winter Weather Advisory | LWX | Calvert, Charles, Saint Mary's | 18 hr |
| Dec 8, 7:54 PM EST | Mesoscale Discussion | SPC | Allegany, Garrett | 6 hr |
| Dec 8, 11:47 PM EST | Winter Storm Warning | PBZ | 5 hr | |
| Dec 9, 12:54 AM EST | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 13 more | 6 hr |
| Dec 10, 1:46 PM EST | Snow Advisory | PBZ | 45 hr | |
| Dec 10, 2:24 PM EST | Winter Storm Watch | LWX | 14 hr | |
| Dec 11, 4:15 AM EST | Snow Advisory | LWX | 25 hr | |
| Dec 14, 3:50 AM EST | Winter Storm Watch | LWX | Baltimore, Carroll, Frederick, Washington | 12 hr |
| Dec 14, 3:50 AM EST | Winter Storm Watch | PBZ | 48 hr | |
| Dec 14, 3:22 PM EST | Winter Storm Warning | PBZ | 37 hr | |
| Dec 14, 3:23 PM EST | Ice Storm Warning | LWX | Baltimore, Carroll, Frederick, Washington | 34 hr |
| Dec 14, 3:23 PM EST | Winter Weather Advisory | LWX | Anne Arundel, Baltimore, Calvert, Charles, Prince George's, Saint Mary's and 1 more | 30 hr |
| Dec 14, 10:11 PM EST | Winter Storm Warning | LWX | Washington | 27 hr |
| Dec 15, 3:40 AM EST | Winter Weather Advisory | PHI | Cecil | 16 hr |
| Dec 15, 1:43 PM EST | Mesoscale Discussion | SPC | Allegany, Baltimore, Carroll, Frederick, Garrett, Howard and 2 more | 5 hr |
| Dec 15, 8:18 PM EST | Mesoscale Discussion | SPC | Allegany, Carroll, Frederick, Garrett, Washington | 4 hr |
| Dec 25, 8:06 AM EST | Winter Weather Advisory | PBZ | 4 hr | |
| Dec 25, 2:08 PM EST | Winter Weather Advisory | LWX | 28 hr | |
| Dec 25, 2:36 PM EST | Winter Weather Advisory | PBZ | 25 hr | |
| Dec 25, 11:39 PM EST | Dense Fog Advisory | LWX | Frederick, Washington | 8 hr |
| Dec 30, 11:15 PM EST | Winter Weather Advisory | LWX | Baltimore, Carroll, Frederick, Washington | 10 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 | 94 |
| Tornado Warning | 6 |
| Severe Thunderstorm Watch | 10 |
| Tornado Watch | 5 |
| Mesoscale Discussion | 70 |
| Flooding | |
| Flash Flood Warning | 35 |
| Winter | |
| Heavy Snow Warning | 6 |
| Ice Storm Warning | 1 |
| Winter Storm Warning | 7 |
| Winter Storm Watch | 12 |
| Snow Advisory | 8 |
| Winter Weather Advisory | 13 |
| Heat | |
| Heat Advisory | 9 |
| Cold | |
| Freeze Warning | 4 |
| Frost Advisory | 8 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| High Wind Watch | 1 |
| Wind Advisory | 9 |
| Fog and smoke | |
| Dense Fog Advisory | 3 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Baltimore County68
- Washington County63
- Frederick County62
- Charles County58
- Prince George's County56
- City of Baltimore54
- Montgomery County51
- Carroll County51
- Anne Arundel County48
- Saint Mary's County47
- Calvert County46
- Queen Anne's County42
- Howard County41
- Cecil County40
- Talbot County39
- Kent County38
- Caroline County37
- Garrett County35
- Dorchester County33
- Harford County29
- Wicomico County28
- Allegany County28
- Somerset County27
- Worcester County24
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20042006
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.