Alert archive / Maryland / Severe Thunderstorm Warnings / 2011
Severe Thunderstorm Warnings in Maryland, July 2011
64 severe thunderstorm warnings in July 2011. 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 2011. Tap one for its archive.
- Severe Thunderstorm Warnings
- 64
- Busiest day
- July 3, 201110 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 3, 3:14 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 46 min |
| Jul 3, 3:56 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 49 min |
| Jul 3, 4:03 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 27 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, 7:18 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's, Talbot | 57 min |
| Jul 3, 7:43 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 62 min |
| Jul 3, 8:15 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 48 min |
| Jul 3, 8:34 PM EDT | Severe Thunderstorm Warning | PHI | Caroline | 20 min |
| Jul 7, 4:37 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 38 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, 8:13 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 14 min |
| Jul 7, 10:01 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 29 min |
| Jul 7, 11:21 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford | 39 min |
| Jul 8, 4:09 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Prince George's | 51 min |
| 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, 5:53 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, 6:23 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's, Talbot | 82 min |
| Jul 11, 6:40 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 35 min |
| Jul 11, 6:54 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 37 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, 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, 9:11 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent, Queen Anne's | 64 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 | Severe Thunderstorm Warning | PHI | Caroline, Talbot | 33 min |
| Jul 13, 3:13 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Prince George's | 47 min |
| 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 19, 4:41 PM EDT | Severe Thunderstorm Warning | AKQ | Worcester | 34 min |
| Jul 19, 6:00 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 45 min |
| Jul 19, 6:53 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Talbot | 38 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 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, 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, 4:30 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 45 min |
| Jul 23, 7:09 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Prince George's | 36 min |
| Jul 24, 1:25 PM EDT | Severe Thunderstorm Warning | AKQ | Worcester | 50 min |
| Jul 24, 2:13 PM EDT | Severe Thunderstorm Warning | PHI | Kent, Queen Anne's, Talbot | 36 min |
| Jul 24, 4:06 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's | 54 min |
| Jul 25, 1:28 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll | 32 min |
| Jul 25, 3:54 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Prince George's | 46 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, 6:52 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 38 min |
| Jul 29, 6:58 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 32 min |
| Jul 31, 3:58 PM EDT | Severe Thunderstorm Warning | PHI | Kent, Queen Anne's | 36 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Prince George's County14
- Anne Arundel County13
- Washington County11
- Montgomery County11
- Charles County11
- Baltimore County9
- Calvert County9
- Caroline County9
- Queen Anne's County9
- Frederick County8
- Talbot County8
- Howard County7
- City of Baltimore5
- Saint Mary's County5
- Kent County5
- Harford County4
- Carroll County4
- Garrett County3
- Allegany County3
- Cecil County2
- Worcester County2
- Dorchester County1
- Wicomico County1
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.