Alert archive / Maryland / Severe Thunderstorm Warnings
Severe Thunderstorm Warnings in Maryland, 2004
178 severe thunderstorm warnings in 2004. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of severe thunderstorm warnings reaches back to 1986.
Severe Thunderstorm Warnings by county
Each county as a circle sized by its count in 2004. Tap one for its archive.
- Severe Thunderstorm Warnings
- 178
- Busiest month
- May69 severe thunderstorm warnings
- Busiest day
- May 17, 200413 severe thunderstorm warnings
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 |
|---|---|---|---|---|
| Mar 6, 4:24 PM EST | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's | 51 min |
| Apr 23, 5:05 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore | 40 min |
| Apr 23, 5:20 PM EDT | Severe Thunderstorm Warning | LWX | Frederick | 55 min |
| Apr 23, 6:44 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Prince George's | 61 min |
| May 2, 8:18 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 72 min |
| May 2, 8:25 PM EDT | Severe Thunderstorm Warning | LWX | Frederick | 80 min |
| May 2, 9:02 PM EDT | Severe Thunderstorm Warning | LWX | Carroll | 43 min |
| May 2, 9:16 PM EDT | Severe Thunderstorm Warning | LWX | Howard, Prince George's | 44 min |
| May 2, 9:23 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore | 52 min |
| May 2, 9:29 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, City of Baltimore | 61 min |
| May 2, 9:53 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 67 min |
| May 5, 4:58 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 62 min |
| May 5, 5:03 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 42 min |
| May 5, 5:22 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 68 min |
| May 5, 6:09 PM EDT | Severe Thunderstorm Warning | LWX | Calvert | 66 min |
| May 7, 1:58 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 77 min |
| May 7, 7:37 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 38 min |
| May 7, 8:31 PM EDT | Severe Thunderstorm Warning | LWX | Saint Mary's | 29 min |
| May 9, 8:03 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 57 min |
| May 9, 8:11 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 34 min |
| May 9, 11:16 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 59 min |
| May 9, 11:26 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 49 min |
| May 9, 11:43 PM EDT | Severe Thunderstorm Warning | LWX | Howard, Montgomery | 47 min |
| May 12, 12:19 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 41 min |
| May 14, 4:16 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 44 min |
| May 15, 4:31 PM EDT | Severe Thunderstorm Warning | LWX | Frederick | 44 min |
| May 15, 8:49 PM EDT | Severe Thunderstorm Warning | LWX | Carroll | 41 min |
| May 15, 9:03 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore | 42 min |
| May 17, 2:11 PM EDT | Severe Thunderstorm Warning | LWX | Carroll | 49 min |
| May 17, 2:12 PM EDT | Severe Thunderstorm Warning | LWX | Carroll | 48 min |
| May 17, 2:22 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore | 53 min |
| May 17, 3:13 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore | 77 min |
| May 17, 4:21 PM EDT | Severe Thunderstorm Warning | PHI | Kent | 39 min |
| May 17, 4:22 PM EDT | Severe Thunderstorm Warning | LWX | City of Baltimore | 38 min |
| May 17, 4:28 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore | 47 min |
| May 17, 4:57 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 63 min |
| May 17, 5:15 PM EDT | Severe Thunderstorm Warning | PHI | Kent | 45 min |
| May 17, 6:02 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 58 min |
| May 17, 6:16 PM EDT | Severe Thunderstorm Warning | LWX | Howard | 44 min |
| May 17, 6:30 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 45 min |
| May 17, 6:33 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 57 min |
| May 17, 8:28 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 47 min |
| May 17, 8:39 PM EDT | Severe Thunderstorm Warning | LWX | Frederick | 66 min |
| May 18, 4:35 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 40 min |
| May 18, 5:49 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 26 min |
| May 18, 5:58 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 62 min |
| May 18, 6:48 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 57 min |
| May 18, 6:50 PM EDT | Severe Thunderstorm Warning | PHI | Kent | 40 min |
| May 18, 7:25 PM EDT | Severe Thunderstorm Warning | LWX | Frederick | 65 min |
| May 21, 6:54 AM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 81 min |
| May 21, 7:25 AM EDT | Severe Thunderstorm Warning | LWX | Allegany, Washington | 50 min |
| May 21, 8:07 AM EDT | Severe Thunderstorm Warning | LWX | Washington | 53 min |
| May 21, 7:34 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 56 min |
| May 21, 7:50 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 55 min |
| May 21, 8:24 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 66 min |
| May 21, 9:51 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Montgomery | 69 min |
| May 25, 4:52 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 53 min |
| May 25, 4:58 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 62 min |
| May 25, 5:46 PM EDT | Severe Thunderstorm Warning | LWX | Frederick | 59 min |
| May 25, 6:06 PM EDT | Severe Thunderstorm Warning | LWX | Carroll | 54 min |
| May 25, 6:44 PM EDT | Severe Thunderstorm Warning | LWX | Frederick | 46 min |
| May 25, 6:50 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, City of Baltimore | 55 min |
| May 25, 6:59 PM EDT | Severe Thunderstorm Warning | LWX | Howard, Montgomery | 61 min |
| May 25, 7:10 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 65 min |
| May 25, 7:41 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 49 min |
| May 25, 7:46 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent | 59 min |
| May 25, 7:57 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 63 min |
| May 25, 8:25 PM EDT | Severe Thunderstorm Warning | PHI | Queen Anne's | 35 min |
| May 25, 8:36 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Talbot | 54 min |
| May 25, 9:04 PM EDT | Severe Thunderstorm Warning | PHI | Queen Anne's | 26 min |
| May 25, 9:09 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 51 min |
| May 25, 9:16 PM EDT | Severe Thunderstorm Warning | LWX | Calvert | 59 min |
| May 25, 9:30 PM EDT | Severe Thunderstorm Warning | PHI | Caroline | 30 min |
| Jun 1, 1:35 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 55 min |
| Jun 1, 1:50 PM EDT | Severe Thunderstorm Warning | LWX | Frederick | 55 min |
| Jun 1, 2:17 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 58 min |
| Jun 1, 2:37 PM EDT | Severe Thunderstorm Warning | LWX | Howard | 53 min |
| Jun 1, 3:01 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 59 min |
| Jun 1, 3:10 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 65 min |
| Jun 1, 3:46 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 29 min |
| Jun 1, 3:54 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent, Queen Anne's | 51 min |
| Jun 1, 4:17 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Talbot | 43 min |
| Jun 2, 7:40 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 50 min |
| Jun 2, 7:53 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 52 min |
| Jun 2, 9:06 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's | 39 min |
| Jun 10, 6:33 PM EDT | Severe Thunderstorm Warning | PHI | Kent | 27 min |
| Jun 14, 5:54 PM EDT | Severe Thunderstorm Warning | LWX | Frederick | 51 min |
| Jun 14, 6:06 PM EDT | Severe Thunderstorm Warning | LWX | Carroll | 54 min |
| Jun 14, 7:33 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 42 min |
| Jun 14, 7:46 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 74 min |
| Jun 14, 8:28 PM EDT | Severe Thunderstorm Warning | PHI | Kent | 47 min |
| Jun 15, 4:33 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 57 min |
| Jun 17, 3:09 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore | 66 min |
| Jun 17, 6:25 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 65 min |
| Jun 17, 6:36 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 39 min |
| Jun 17, 7:20 PM EDT | Severe Thunderstorm Warning | LWX | Saint Mary's | 55 min |
| Jun 17, 7:21 PM EDT | Severe Thunderstorm Warning | LWX | Saint Mary's | 54 min |
| Jun 17, 8:08 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester | 22 min |
| Jun 17, 8:30 PM EDT | Severe Thunderstorm Warning | AKQ | Somerset | 30 min |
| Jun 22, 4:12 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 48 min |
| Jul 1, 3:27 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore | 63 min |
| Jul 1, 3:52 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 68 min |
| Jul 1, 4:49 PM EDT | Severe Thunderstorm Warning | PHI | Kent, Queen Anne's | 56 min |
| Jul 1, 5:41 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 64 min |
| Jul 1, 6:18 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 57 min |
| Jul 1, 7:12 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 63 min |
| Jul 1, 7:39 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 66 min |
| Jul 1, 7:40 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 65 min |
| Jul 4, 5:16 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 59 min |
| Jul 5, 4:02 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 43 min |
| Jul 5, 4:30 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Harford | 45 min |
| Jul 5, 4:54 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 51 min |
| Jul 5, 5:24 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll | 51 min |
| Jul 5, 6:54 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester | 36 min |
| Jul 7, 1:25 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 50 min |
| Jul 7, 2:39 PM EDT | Severe Thunderstorm Warning | LWX | Saint Mary's | 51 min |
| Jul 7, 2:51 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 39 min |
| Jul 7, 2:57 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, City of Baltimore | 63 min |
| Jul 7, 3:27 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 48 min |
| Jul 7, 4:19 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 41 min |
| Jul 7, 4:34 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 56 min |
| Jul 7, 4:47 PM EDT | Severe Thunderstorm Warning | LWX | City of Baltimore | 43 min |
| Jul 7, 4:59 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore | 46 min |
| Jul 12, 11:11 AM EDT | Severe Thunderstorm Warning | LWX | Baltimore | 49 min |
| Jul 12, 1:09 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 51 min |
| Jul 12, 5:08 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 37 min |
| Jul 12, 5:26 PM EDT | Severe Thunderstorm Warning | PHI | Talbot | 49 min |
| Jul 14, 2:27 PM EDT | Severe Thunderstorm Warning | LWX | Frederick | 63 min |
| Jul 14, 2:28 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 62 min |
| Jul 14, 2:45 PM EDT | Severe Thunderstorm Warning | LWX | Carroll | 60 min |
| Jul 14, 3:03 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 57 min |
| Jul 14, 3:36 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 54 min |
| Jul 14, 4:18 PM EDT | Severe Thunderstorm Warning | LWX | Saint Mary's | 57 min |
| Jul 14, 4:24 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 66 min |
| Jul 14, 4:32 PM EDT | Severe Thunderstorm Warning | PHI | Kent, Queen Anne's | 58 min |
| Jul 14, 5:16 PM EDT | Severe Thunderstorm Warning | PHI | Caroline | 59 min |
| Jul 14, 5:28 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester | 17 min |
| Jul 14, 5:45 PM EDT | Severe Thunderstorm Warning | AKQ | Somerset, Wicomico | 30 min |
| Jul 14, 6:11 PM EDT | Severe Thunderstorm Warning | AKQ | Worcester | 34 min |
| Jul 17, 4:10 PM EDT | Severe Thunderstorm Warning | LWX | Saint Mary's | 50 min |
| Aug 4, 3:42 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 63 min |
| Aug 4, 4:02 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 58 min |
| Aug 4, 5:13 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 62 min |
| Aug 4, 6:21 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick | 54 min |
| Aug 4, 7:04 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore | 41 min |
| Aug 4, 7:24 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 66 min |
| Aug 4, 7:35 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Prince George's, City of Baltimore | 55 min |
| Aug 4, 7:49 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 56 min |
| Aug 4, 7:54 PM EDT | Severe Thunderstorm Warning | PHI | Kent | 51 min |
| Aug 4, 8:25 PM EDT | Severe Thunderstorm Warning | PHI | Queen Anne's | 35 min |
| Aug 4, 8:35 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Talbot | 55 min |
| Aug 11, 3:42 PM EDT | Severe Thunderstorm Warning | LWX | Howard, Montgomery | 48 min |
| Aug 11, 4:30 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 45 min |
| Aug 11, 4:35 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 40 min |
| Aug 11, 5:03 PM EDT | Severe Thunderstorm Warning | PHI | Kent, Queen Anne's | 57 min |
| Aug 11, 5:16 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 59 min |
| Aug 11, 5:36 PM EDT | Severe Thunderstorm Warning | PHI | Talbot | 54 min |
| Aug 11, 6:37 PM EDT | Severe Thunderstorm Warning | PHI | Talbot | 53 min |
| Aug 11, 7:27 PM EDT | Severe Thunderstorm Warning | PHI | Talbot | 63 min |
| Aug 12, 6:46 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 59 min |
| Aug 12, 8:47 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 58 min |
| Aug 12, 9:11 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 64 min |
| Aug 18, 6:21 PM EDT | Severe Thunderstorm Warning | PHI | Kent | 24 min |
| Aug 18, 6:27 PM EDT | Severe Thunderstorm Warning | PHI | Queen Anne's | 33 min |
| Aug 18, 6:45 PM EDT | Severe Thunderstorm Warning | PHI | Kent | 30 min |
| Aug 19, 6:30 PM EDT | Severe Thunderstorm Warning | LWX | Carroll | 75 min |
| Aug 19, 6:43 PM EDT | Severe Thunderstorm Warning | LWX | Frederick | 32 min |
| Aug 19, 6:50 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 40 min |
| Aug 19, 7:42 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore | 63 min |
| Sep 8, 4:38 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 67 min |
| Sep 18, 3:29 AM EDT | Severe Thunderstorm Warning | PHI | Cecil | 31 min |
| Sep 18, 3:48 AM EDT | Severe Thunderstorm Warning | LWX | Harford | 27 min |
| Sep 28, 2:12 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent | 63 min |
| Sep 28, 2:28 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore | 47 min |
| Sep 28, 6:38 PM EDT | Severe Thunderstorm Warning | PHI | Kent | 67 min |
| Oct 2, 6:28 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery, Prince George's | 47 min |
| Oct 2, 7:15 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 45 min |
| Nov 25, 6:26 AM EST | Severe Thunderstorm Warning | LWX | Saint Mary's | 34 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Kent County16
- Baltimore County16
- Frederick County16
- Harford County16
- Prince George's County15
- Montgomery County15
- Anne Arundel County14
- Cecil County14
- Washington County11
- Queen Anne's County10
- Carroll County10
- Caroline County7
- Saint Mary's County7
- Talbot County7
- Howard County6
- City of Baltimore6
- Charles County6
- Garrett County6
- Allegany County4
- Dorchester County3
- Calvert County2
- Somerset County2
- Wicomico County1
- Worcester County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20032005
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.