Alert archive / Maryland / Severe Thunderstorm Warnings / 2017
Severe Thunderstorm Warnings in Maryland, July 2017
71 severe thunderstorm warnings in July 2017. 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 2017. Tap one for its archive.
- Severe Thunderstorm Warnings
- 71
- Busiest day
- July 1, 201713 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 1, 2:38 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 41 min |
| Jul 1, 3:00 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery, Prince George's | 45 min |
| Jul 1, 3:01 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick | 26 min |
| Jul 1, 3:31 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Howard, Montgomery, Prince George's | 44 min |
| Jul 1, 3:56 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford | 64 min |
| Jul 1, 4:01 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 34 min |
| Jul 1, 4:33 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Prince George's | 42 min |
| Jul 1, 4:38 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent, Queen Anne's | 67 min |
| Jul 1, 5:39 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's, Talbot | 51 min |
| Jul 1, 6:02 PM EDT | Severe Thunderstorm Warning | LWX | Calvert | 43 min |
| Jul 1, 6:22 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester, Wicomico | 38 min |
| Jul 1, 7:22 PM EDT | Severe Thunderstorm Warning | LWX | Saint Mary's | 38 min |
| Jul 1, 7:51 PM EDT | Severe Thunderstorm Warning | LWX | Saint Mary's | 28 min |
| Jul 4, 4:45 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 45 min |
| Jul 4, 5:31 PM EDT | Severe Thunderstorm Warning | LWX | Frederick | 31 min |
| Jul 4, 6:07 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick, Howard, Montgomery | 38 min |
| Jul 6, 5:55 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester | 36 min |
| Jul 6, 11:01 PM EDT | Severe Thunderstorm Warning | LWX | Saint Mary's | 14 min |
| Jul 7, 4:01 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 44 min |
| Jul 7, 5:55 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 27 min |
| Jul 7, 7:40 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Montgomery, Prince George's | 35 min |
| Jul 8, 6:13 PM EDT | Severe Thunderstorm Warning | AKQ | Somerset | 47 min |
| Jul 8, 7:24 PM EDT | Severe Thunderstorm Warning | AKQ | Worcester | 36 min |
| Jul 13, 5:14 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's | 46 min |
| Jul 14, 1:35 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 40 min |
| Jul 14, 2:31 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 59 min |
| Jul 14, 3:18 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 12 min |
| Jul 14, 3:23 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 67 min |
| Jul 14, 4:14 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 27 min |
| Jul 14, 4:24 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 51 min |
| Jul 14, 4:54 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Prince George's | 39 min |
| Jul 14, 5:24 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 24 min |
| Jul 14, 5:40 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 65 min |
| Jul 14, 5:54 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Talbot | 51 min |
| Jul 14, 6:20 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Talbot | 40 min |
| Jul 14, 6:27 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester | 47 min |
| Jul 17, 2:21 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll | 39 min |
| Jul 17, 2:59 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick | 46 min |
| Jul 17, 3:06 PM EDT | Severe Thunderstorm Warning | LWX | Howard, Montgomery | 39 min |
| Jul 17, 3:13 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll | 47 min |
| Jul 17, 3:40 PM EDT | Severe Thunderstorm Warning | LWX | Howard, Montgomery | 50 min |
| Jul 17, 4:15 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 32 min |
| Jul 17, 6:30 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 17 min |
| Jul 18, 3:20 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Howard | 25 min |
| Jul 22, 12:57 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 48 min |
| Jul 22, 2:03 PM EDT | Severe Thunderstorm Warning | LWX | Howard, Montgomery | 27 min |
| Jul 22, 2:23 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Howard, Montgomery, Prince George's | 52 min |
| Jul 22, 3:03 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's, Talbot | 42 min |
| Jul 22, 3:38 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's, Talbot | 52 min |
| Jul 22, 3:47 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester, Wicomico | 43 min |
| Jul 22, 4:30 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester, Wicomico, Worcester | 45 min |
| Jul 22, 6:06 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Charles, Prince George's | 54 min |
| Jul 23, 2:47 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's, Talbot | 43 min |
| Jul 23, 3:06 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 39 min |
| Jul 23, 3:44 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 14 min |
| Jul 24, 12:21 AM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Prince George's | 39 min |
| Jul 24, 12:58 AM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 32 min |
| Jul 24, 1:05 AM EDT | Severe Thunderstorm Warning | PHI | Kent, Queen Anne's | 55 min |
| Jul 24, 1:52 AM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's | 53 min |
| Jul 24, 2:02 AM EDT | Severe Thunderstorm Warning | PHI | Cecil | 43 min |
| Jul 24, 5:02 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 43 min |
| Jul 24, 7:27 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford | 48 min |
| Jul 24, 8:07 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Howard | 38 min |
| Jul 24, 8:08 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 52 min |
| Jul 24, 8:09 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 36 min |
| Jul 24, 8:25 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Harford, City of Baltimore | 50 min |
| Jul 24, 9:04 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Howard, City of Baltimore | 24 min |
| Jul 24, 9:52 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's | 38 min |
| Jul 24, 10:06 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Cecil, Kent, Queen Anne's | 39 min |
| Jul 24, 10:50 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's | 40 min |
| Jul 25, 12:34 AM EDT | Severe Thunderstorm Warning | PHI | Caroline | 41 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Caroline County13
- Montgomery County12
- Queen Anne's County12
- Anne Arundel County10
- Prince George's County9
- Howard County9
- Baltimore County8
- Carroll County7
- Frederick County7
- Cecil County7
- Kent County7
- Talbot County7
- Harford County6
- Dorchester County5
- Calvert County4
- Wicomico County3
- Saint Mary's County3
- Washington County3
- Allegany County2
- Charles County2
- Worcester County2
- City of Baltimore2
- Garrett County1
- Somerset County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20162018
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.