Alert archive / Maryland / Severe Thunderstorm Warnings / 2012
Severe Thunderstorm Warnings in Maryland, July 2012
78 severe thunderstorm warnings in July 2012. 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 July 2012. Tap one for its archive.
- Severe Thunderstorm Warnings
- 78
- Busiest day
- July 18, 201213 severe thunderstorm warnings
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, 4:47 AM EDT | Severe Thunderstorm Warning | AKQ | Dorchester, Somerset, Wicomico | 43 min |
| Jul 3, 5:30 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 47 min |
| Jul 3, 6:05 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 40 min |
| Jul 3, 6:07 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 38 min |
| Jul 3, 6:43 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 18 min |
| Jul 3, 8:01 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 29 min |
| Jul 4, 7:03 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 57 min |
| Jul 4, 7:28 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 47 min |
| Jul 4, 7:56 PM EDT | Severe Thunderstorm Warning | LWX | Allegany, Washington | 49 min |
| Jul 4, 8:20 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 40 min |
| Jul 4, 8:53 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 52 min |
| Jul 5, 2:48 AM EDT | Severe Thunderstorm Warning | LWX | Charles | 42 min |
| Jul 5, 3:25 AM EDT | Severe Thunderstorm Warning | LWX | Charles | 39 min |
| Jul 5, 3:46 AM EDT | Severe Thunderstorm Warning | LWX | Charles, Saint Mary's | 22 min |
| Jul 5, 7:36 PM EDT | Severe Thunderstorm Warning | PHI | Kent, Queen Anne's | 39 min |
| Jul 5, 8:14 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 46 min |
| Jul 8, 1:30 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 45 min |
| Jul 8, 2:17 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 43 min |
| Jul 8, 2:53 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 52 min |
| Jul 8, 3:14 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 34 min |
| Jul 8, 3:44 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 46 min |
| Jul 8, 4:14 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Montgomery, Prince George's | 46 min |
| Jul 8, 4:42 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Prince George's | 48 min |
| Jul 8, 5:06 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 69 min |
| Jul 8, 5:23 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Charles, Saint Mary's | 52 min |
| Jul 8, 6:07 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Charles, Saint Mary's | 68 min |
| Jul 8, 7:16 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester, Somerset, Wicomico | 44 min |
| Jul 8, 9:22 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's, Talbot | 53 min |
| Jul 8, 10:15 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's | 25 min |
| Jul 8, 11:48 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 31 min |
| Jul 15, 8:30 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 45 min |
| Jul 18, 2:04 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 41 min |
| Jul 18, 2:50 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 40 min |
| Jul 18, 2:57 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick, Washington | 48 min |
| Jul 18, 3:15 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick | 45 min |
| Jul 18, 3:20 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 40 min |
| Jul 18, 3:24 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 30 min |
| Jul 18, 4:19 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Montgomery, Prince George's | 41 min |
| Jul 18, 4:29 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Howard, Montgomery, Prince George's | 46 min |
| Jul 18, 4:53 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Howard, Montgomery, Prince George's | 52 min |
| Jul 18, 5:02 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 20 min |
| Jul 18, 5:35 PM EDT | Severe Thunderstorm Warning | PHI | Kent, Queen Anne's | 25 min |
| Jul 18, 6:06 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 39 min |
| Jul 18, 6:23 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's, Talbot | 37 min |
| Jul 19, 6:32 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 43 min |
| Jul 19, 6:47 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Howard, City of Baltimore | 43 min |
| Jul 19, 9:20 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Howard, Montgomery, Prince George's | 40 min |
| Jul 19, 9:34 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Montgomery, Prince George's | 41 min |
| Jul 19, 11:16 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Prince George's | 29 min |
| Jul 24, 11:24 AM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 51 min |
| Jul 24, 11:38 AM EDT | Severe Thunderstorm Warning | LWX | Allegany | 52 min |
| Jul 24, 4:23 PM EDT | Severe Thunderstorm Warning | LWX | Frederick | 37 min |
| Jul 24, 5:24 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, City of Baltimore | 26 min |
| Jul 24, 5:27 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 21 min |
| Jul 26, 6:37 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 68 min |
| Jul 26, 7:13 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 47 min |
| Jul 26, 7:25 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 80 min |
| Jul 26, 7:57 PM EDT | Severe Thunderstorm Warning | LWX | Allegany, Washington | 48 min |
| Jul 26, 8:31 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Frederick, Harford | 44 min |
| Jul 26, 9:26 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Harford, Howard, City of Baltimore | 49 min |
| Jul 28, 3:54 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 51 min |
| Jul 28, 4:10 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 65 min |
| Jul 28, 4:42 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 48 min |
| Jul 28, 5:42 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Prince George's | 30 min |
| Jul 28, 5:49 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Prince George's | 41 min |
| Jul 28, 6:31 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Charles, Prince George's | 32 min |
| Jul 28, 6:41 PM EDT | Severe Thunderstorm Warning | PHI | Queen Anne's, Talbot | 64 min |
| Jul 28, 7:22 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Talbot | 53 min |
| Jul 28, 7:34 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester | 41 min |
| Jul 28, 7:56 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Prince George's | 49 min |
| Jul 28, 7:57 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 48 min |
| Jul 28, 8:04 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester, Wicomico | 41 min |
| Jul 28, 8:09 PM EDT | Severe Thunderstorm Warning | PHI | Caroline | 66 min |
| Jul 28, 8:10 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Prince George's | 37 min |
| Jul 31, 12:56 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 34 min |
| Jul 31, 1:41 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 34 min |
| Jul 31, 4:38 PM EDT | Severe Thunderstorm Warning | LWX | Howard, Montgomery, Prince George's | 52 min |
| Jul 31, 5:04 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Montgomery | 20 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Prince George's County16
- Washington County14
- Montgomery County12
- Charles County11
- Frederick County10
- Anne Arundel County10
- Queen Anne's County8
- Garrett County7
- Allegany County7
- Caroline County7
- Talbot County6
- Calvert County6
- Howard County6
- Dorchester County4
- Kent County4
- Carroll County4
- Baltimore County4
- Harford County4
- Wicomico County3
- Saint Mary's County3
- Cecil County3
- City of Baltimore3
- Somerset County2
Nearby
Alerts in force nowTornadoes on recordThe radar archive20112013
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.