Alert archive / Maryland / 2012
Weather alerts in Maryland, May 2012
123 weather alerts in May 2012, 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 May 2012. Tap one for its archive.
- Alerts
- 123
- Warnings
- 25
- Watches
- 2
- Advisories
- 6
- Busiest day
- May 4, 201223 alerts
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 |
|---|---|---|---|---|
| May 1, 11:28 PM EDT | Special Weather Statement | PBZ | Garrett | 62 min |
| May 2, 5:57 AM EDT | Special Weather Statement | LWX | Saint Mary's | 48 min |
| May 2, 5:58 AM EDT | Special Weather Statement | PHI | Cecil, Kent | 92 min |
| May 2, 6:18 AM EDT | Special Weather Statement | AKQ | Dorchester | 42 min |
| May 2, 6:41 AM EDT | Special Weather Statement | LWX | Calvert, Saint Mary's | 34 min |
| May 2, 4:56 PM EDT | Mesoscale Discussion | SPC | Allegany, Frederick, Garrett, Washington | 2 hr |
| May 2, 5:26 PM EDT | Special Weather Statement | LWX | Washington | 34 min |
| May 2, 5:41 PM EDT | Special Weather Statement | LWX | Washington | 34 min |
| May 2, 6:06 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 39 min |
| May 3, 5:45 PM EDT | Mesoscale Discussion | SPC | Washington | 60 min |
| May 3, 7:17 PM EDT | Special Weather Statement | LWX | Washington | 28 min |
| May 3, 7:31 PM EDT | Special Weather Statement | LWX | Washington | 29 min |
| May 3, 7:34 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 41 min |
| May 3, 7:56 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 49 min |
| May 3, 8:21 PM EDT | Special Weather Statement | LWX | Frederick | 24 min |
| May 3, 8:28 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 26 min |
| May 3, 8:46 PM EDT | Special Weather Statement | LWX | Washington | 29 min |
| May 3, 8:49 PM EDT | Special Weather Statement | LWX | Frederick | 26 min |
| May 3, 8:58 PM EDT | Special Weather Statement | LWX | Washington | 32 min |
| May 3, 9:16 PM EDT | Special Weather Statement | LWX | Carroll, Frederick | 29 min |
| May 3, 9:42 PM EDT | Special Weather Statement | LWX | Carroll | 48 min |
| May 3, 9:44 PM EDT | Special Weather Statement | LWX | Washington | 46 min |
| May 3, 9:57 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Montgomery | 48 min |
| May 3, 9:58 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Howard | 22 min |
| May 3, 10:17 PM EDT | Special Weather Statement | LWX | Baltimore, City of Baltimore | 28 min |
| May 3, 10:26 PM EDT | Special Weather Statement | LWX | Howard, Montgomery | 34 min |
| May 3, 10:34 PM EDT | Special Weather Statement | LWX | Baltimore, City of Baltimore | 26 min |
| May 3, 10:43 PM EDT | Special Weather Statement | LWX | Montgomery | 32 min |
| May 4, 12:32 AM EDT | Special Weather Statement | AKQ | Dorchester | 58 min |
| May 4, 1:02 AM EDT | Special Weather Statement | PHI | Caroline, Queen Anne's, Talbot | 58 min |
| May 4, 12:13 PM EDT | Special Weather Statement | LWX | Prince George's | 47 min |
| May 4, 12:36 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Prince George's | 24 min |
| May 4, 12:56 PM EDT | Severe Thunderstorm Warning | PHI | Kent, Queen Anne's, Talbot | 15 min |
| May 4, 12:59 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 9 min |
| May 4, 1:26 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Caroline, Carroll and 13 more | 2 hr |
| May 4, 1:34 PM EDT | Special Weather Statement | PHI | Talbot | 26 min |
| May 4, 2:07 PM EDT | Special Weather Statement | PHI | Caroline | 38 min |
| May 5, 6:37 PM EDT | Coastal Flood Advisory | LWX | Anne Arundel | 16 hr |
| May 6, 10:50 PM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Baltimore, City of Baltimore | 13 hr |
| May 7, 3:59 AM EDT | Coastal Flood Statement | PHI | Kent, Queen Anne's, Talbot | 5 hr |
| May 7, 3:39 PM EDT | Coastal Flood Statement | PHI | Caroline, Kent, Queen Anne's, Talbot | 18 hr |
| May 7, 5:17 PM EDT | Coastal Flood Statement | AKQ | Dorchester, Somerset, Wicomico, Worcester | 11 hr |
| May 7, 10:14 PM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Baltimore, City of Baltimore | 39 hr |
| May 10, 4:03 PM EDT | Frost Advisory | PBZ | 16 hr | |
| May 15, 6:40 AM EDT | Special Weather Statement | PHI | Caroline, Cecil, Kent, Queen Anne's | 50 min |
| May 15, 7:30 AM EDT | Special Weather Statement | PHI | Caroline, Cecil, Kent, Queen Anne's | 2 hr |
| May 15, 7:51 AM EDT | Special Weather Statement | AKQ | Worcester | 54 min |
| May 15, 2:08 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Calvert, Charles, Dorchester, Montgomery, Prince George's and 1 more | 67 min |
| May 15, 8:31 PM EDT | Special Weather Statement | LWX | Charles | 29 min |
| May 15, 8:52 PM EDT | Special Weather Statement | LWX | Calvert | 38 min |
| May 15, 9:07 PM EDT | Special Weather Statement | LWX | Charles | 53 min |
| May 15, 9:24 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Charles, Prince George's | 13 min |
| May 20, 10:17 PM EDT | Special Weather Statement | AKQ | Wicomico, Worcester | 28 min |
| May 21, 8:58 PM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Baltimore, City of Baltimore | 15 hr |
| May 21, 11:17 PM EDT | Special Weather Statement | LWX | Washington | 88 min |
| May 22, 11:49 PM EDT | Special Weather Statement | LWX | Frederick | 26 min |
| May 23, 3:04 PM EDT | Special Weather Statement | LWX | Montgomery | 26 min |
| May 23, 3:42 PM EDT | Special Weather Statement | PHI | Caroline, Queen Anne's, Talbot | 63 min |
| May 23, 3:44 PM EDT | Special Weather Statement | AKQ | Caroline | 16 min |
| May 23, 4:07 PM EDT | Special Weather Statement | LWX | Carroll | 23 min |
| May 23, 4:29 PM EDT | Special Weather Statement | LWX | Montgomery | 31 min |
| May 23, 4:40 PM EDT | Special Weather Statement | PHI | Caroline, Kent, Queen Anne's, Talbot | 110 min |
| May 23, 5:47 PM EDT | Special Weather Statement | LWX | Baltimore | 28 min |
| May 23, 6:41 PM EDT | Special Weather Statement | LWX | Carroll | 34 min |
| May 23, 7:08 PM EDT | Special Weather Statement | LWX | Carroll | 37 min |
| May 23, 10:26 PM EDT | Special Weather Statement | LWX | Saint Mary's | 34 min |
| May 23, 11:01 PM EDT | Special Weather Statement | LWX | Saint Mary's | 14 min |
| May 23, 11:26 PM EDT | Special Weather Statement | LWX | Saint Mary's | 34 min |
| May 23, 11:36 PM EDT | Special Weather Statement | AKQ | Dorchester | 54 min |
| May 24, 1:33 PM EDT | Mesoscale Discussion | SPC | Charles | 87 min |
| May 24, 4:19 PM EDT | Special Weather Statement | PHI | Cecil | 56 min |
| May 26, 4:11 PM EDT | Special Weather Statement | LWX | Allegany | 34 min |
| May 26, 4:57 PM EDT | Special Weather Statement | LWX | Allegany | 33 min |
| May 26, 7:17 PM EDT | Severe Thunderstorm Warning | LWX | Allegany, Washington | 43 min |
| May 26, 8:06 PM EDT | Special Weather Statement | PBZ | Garrett | 39 min |
| May 27, 1:41 PM EDT | Mesoscale Discussion | SPC | Allegany, Garrett, Washington | 64 min |
| May 27, 2:20 PM EDT | Special Weather Statement | PBZ | Garrett | 40 min |
| May 27, 2:57 PM EDT | Special Weather Statement | PBZ | Garrett | 48 min |
| May 27, 3:21 PM EDT | Flash Flood Warning | PBZ | Garrett | 3 hr |
| May 27, 6:34 PM EDT | Mesoscale Discussion | SPC | Allegany, Baltimore, Carroll, Frederick, Garrett, Howard and 3 more | 56 min |
| May 27, 7:03 PM EDT | Special Weather Statement | LWX | Washington | 57 min |
| May 27, 7:08 PM EDT | Special Weather Statement | PBZ | Garrett | 112 min |
| May 27, 7:25 PM EDT | Severe Thunderstorm Warning | LWX | Allegany, Frederick, Washington | 50 min |
| May 27, 7:46 PM EDT | Special Weather Statement | LWX | Baltimore, Carroll, Harford, Howard, City of Baltimore | 59 min |
| May 27, 8:02 PM EDT | Special Weather Statement | LWX | Frederick | 28 min |
| May 27, 8:08 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Montgomery, Washington | 37 min |
| May 27, 8:42 PM EDT | Special Weather Statement | LWX | Montgomery, Prince George's | 18 min |
| May 27, 8:59 PM EDT | Special Weather Statement | LWX | Anne Arundel, City of Baltimore | 46 min |
| May 27, 9:06 PM EDT | Special Weather Statement | LWX | Prince George's | 39 min |
| May 27, 10:10 PM EDT | Special Weather Statement | PHI | Caroline, Queen Anne's | 65 min |
| May 27, 10:32 PM EDT | Flash Flood Watch | LWX | Allegany | 3 hr |
| May 27, 11:25 PM EDT | Special Weather Statement | LWX | Allegany | 35 min |
| May 27, 11:52 PM EDT | Special Weather Statement | LWX | Allegany | 23 min |
| May 28, 4:16 AM EDT | Heat Advisory | LWX | Baltimore, Carroll, Charles, Frederick, Prince George's, City of Baltimore | 17 hr |
| May 28, 4:21 PM EDT | Special Weather Statement | LWX | Allegany | 54 min |
| May 28, 4:39 PM EDT | Flash Flood Warning | LWX | Allegany | 62 min |
| May 29, 2:59 PM EDT | Special Weather Statement | PBZ | Garrett | 31 min |
| May 29, 3:22 PM EDT | Special Weather Statement | LWX | Washington | 53 min |
| May 29, 3:33 PM EDT | Special Weather Statement | LWX | Allegany | 27 min |
| May 29, 3:58 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 47 min |
| May 29, 4:09 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 51 min |
| May 29, 4:22 PM EDT | Mesoscale Discussion | SPC | Frederick, Washington | 53 min |
| May 29, 4:33 PM EDT | Severe Thunderstorm Watch | SPC | Baltimore, Carroll, Charles, Frederick, Harford, Howard and 4 more | 4 hr |
| May 29, 4:34 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 41 min |
| May 29, 4:37 PM EDT | Special Weather Statement | LWX | Frederick | 38 min |
| May 29, 4:53 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 52 min |
| May 29, 5:01 PM EDT | Severe Thunderstorm Warning | LWX | Allegany, Washington | 44 min |
| May 29, 5:12 PM EDT | Special Weather Statement | LWX | Carroll | 48 min |
| May 29, 5:20 PM EDT | Special Weather Statement | LWX | Frederick | 40 min |
| May 29, 5:26 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 49 min |
| May 29, 5:37 PM EDT | Special Weather Statement | LWX | Washington | 38 min |
| May 29, 5:45 PM EDT | Flash Flood Warning | LWX | Frederick, Washington | 5 hr |
| May 29, 5:50 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 40 min |
| May 29, 6:06 PM EDT | Special Weather Statement | LWX | Carroll, Frederick | 39 min |
| May 29, 6:31 PM EDT | Special Weather Statement | LWX | Baltimore, Carroll, Howard | 44 min |
| May 29, 7:29 PM EDT | Special Weather Statement | LWX | Baltimore, Carroll, Harford, Howard, Montgomery, City of Baltimore | 61 min |
| May 29, 7:34 PM EDT | Special Weather Statement | PHI | Cecil | 56 min |
| May 29, 7:38 PM EDT | Flash Flood Warning | LWX | Montgomery | 76 min |
| May 29, 7:48 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Charles, Kent, Prince George's | 57 min |
| May 29, 8:10 PM EDT | Flash Flood Warning | LWX | Montgomery, Prince George's | 96 min |
| May 29, 8:33 PM EDT | Special Weather Statement | LWX | Anne Arundel, Baltimore, Harford, Howard, City of Baltimore | 57 min |
| May 29, 9:35 PM EDT | Special Weather Statement | PHI | Caroline, Kent, Queen Anne's, Talbot | 85 min |
| May 29, 10:55 PM EDT | Special Weather Statement | PHI | Caroline, Talbot | 65 min |
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 | 20 |
| Severe Thunderstorm Watch | 1 |
| Mesoscale Discussion | 9 |
| Special Weather Statement | 78 |
| Flooding | |
| Flash Flood Warning | 5 |
| Flash Flood Watch | 1 |
| Heat | |
| Heat Advisory | 1 |
| Cold | |
| Frost Advisory | 1 |
| Coast and beach | |
| Coastal Flood Advisory | 4 |
| Coastal Flood Statement | 3 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Washington County31
- Frederick County21
- Allegany County17
- Carroll County15
- Baltimore County15
- Montgomery County14
- City of Baltimore13
- Caroline County12
- Anne Arundel County12
- Queen Anne's County11
- Prince George's County11
- Garrett County10
- Kent County10
- Talbot County10
- Howard County9
- Charles County9
- Saint Mary's County6
- Cecil County6
- Dorchester County6
- Harford County5
- Calvert County4
- Worcester County3
- Wicomico County2
- Somerset County1
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. Rebuilt daily.