Alert archive / Maryland / 2011
Weather alerts in Maryland, March 2011
109 weather alerts in March 2011, 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 March 2011. Tap one for its archive.
- Alerts
- 109
- Warnings
- 31
- Watches
- 12
- Advisories
- 22
- Busiest day
- March 10, 201119 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 |
|---|---|---|---|---|
| Mar 4, 3:47 AM EST | Flood Watch | PBZ | 54 hr | |
| Mar 5, 3:16 AM EST | Flood Watch | LWX | Allegany, Anne Arundel, Baltimore, Carroll, Frederick, Prince George's and 2 more | 43 hr |
| Mar 6, 3:30 AM EST | Coastal Flood Statement | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 17 hr |
| Mar 6, 9:08 AM EST | Coastal Flood Advisory | LWX | Anne Arundel, Baltimore, Calvert, Charles, Prince George's, Saint Mary's and 1 more | 12 hr |
| Mar 6, 12:06 PM EST | Mesoscale Discussion | SPC | Charles, Saint Mary's | 84 min |
| Mar 6, 2:26 PM EST | Special Weather Statement | LWX | Howard, Montgomery | 64 min |
| Mar 6, 2:37 PM EST | Winter Weather Advisory | LWX | Allegany, Frederick, Washington | 12 hr |
| Mar 6, 2:41 PM EST | Winter Weather Advisory | PBZ | 6 hr | |
| Mar 6, 3:14 PM EST | Special Weather Statement | PHI | Cecil | 61 min |
| Mar 6, 3:48 PM EST | Areal Flood Warning | LWX | Montgomery, Prince George's | 6 hr |
| Mar 6, 4:27 PM EST | Special Weather Statement | LWX | Calvert, Saint Mary's | 93 min |
| Mar 6, 10:10 PM EST | River Flood Warning | LWX | Washington | 13 hr |
| Mar 6, 10:10 PM EST | River Flood Warning | LWX | Frederick | 23 hr |
| Mar 6, 10:44 PM EST | River Flood Warning | LWX | Montgomery | 9 hr |
| Mar 8, 3:14 AM EST | Flood Watch | LWX | Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 5 more | 65 hr |
| Mar 8, 4:18 AM EST | Flood Watch | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 3 days |
| Mar 8, 2:21 PM EST | Flood Watch | PBZ | 52 hr | |
| Mar 8, 2:34 PM EST | Flood Watch | AKQ | Dorchester, Somerset, Wicomico, Worcester | 59 hr |
| Mar 8, 6:00 PM EST | River Flood Warning | PHI | Cecil, Harford | 8 hr |
| Mar 9, 3:28 AM EST | Coastal Flood Watch | LWX | Anne Arundel, Baltimore, Calvert, Charles, Prince George's, Saint Mary's and 1 more | 30 hr |
| Mar 9, 4:29 AM EST | Coastal Flood Watch | AKQ | Dorchester, Somerset, Wicomico | 24 hr |
| Mar 9, 9:43 AM EST | Winter Weather Advisory | PBZ | 4 hr | |
| Mar 9, 12:11 PM EST | Winter Weather Advisory | LWX | Allegany | 9 hr |
| Mar 9, 2:41 PM EST | Winter Storm Watch | PBZ | 25 hr | |
| Mar 9, 2:41 PM EST | Winter Weather Advisory | PBZ | 3 hr | |
| Mar 9, 2:43 PM EST | River Flood Warning | LWX | Washington | 54 hr |
| Mar 9, 2:43 PM EST | River Flood Warning | LWX | Frederick | 3 days |
| Mar 9, 2:50 PM EST | Coastal Flood Advisory | LWX | Anne Arundel, Baltimore, Calvert, Charles, Prince George's, Saint Mary's and 1 more | 19 hr |
| Mar 9, 2:57 PM EST | River Flood Warning | LWX | Frederick | 59 hr |
| Mar 9, 3:32 PM EST | River Flood Warning | LWX | Washington | 3 days |
| Mar 10, 3:28 AM EST | Coastal Flood Advisory | PHI | Caroline, Kent, Queen Anne's, Talbot | 21 hr |
| Mar 10, 4:03 AM EST | Coastal Flood Advisory | AKQ | Dorchester, Somerset, Wicomico | 29 hr |
| Mar 10, 7:28 AM EST | Areal Flood Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 6 hr |
| Mar 10, 9:46 AM EST | Coastal Flood Warning | LWX | Anne Arundel, Baltimore, Calvert, Charles, Prince George's, Saint Mary's and 1 more | 17 hr |
| Mar 10, 12:37 PM EST | Areal Flood Warning | LWX | Anne Arundel, Baltimore, Harford, Howard, City of Baltimore | 6 hr |
| Mar 10, 1:25 PM EST | Severe Thunderstorm Watch | SPC | Anne Arundel, Calvert, Charles, Howard, Montgomery, Prince George's and 1 more | 7 hr |
| Mar 10, 2:46 PM EST | River Flood Warning | LWX | Montgomery | 13 hr |
| Mar 10, 3:25 PM EST | Winter Weather Advisory | LWX | Allegany | 24 hr |
| Mar 10, 3:51 PM EST | Winter Weather Advisory | PBZ | 26 hr | |
| Mar 10, 4:06 PM EST | Areal Flood Warning | LWX | Anne Arundel, Montgomery, Prince George's | 4 hr |
| Mar 10, 4:36 PM EST | Areal Flood Warning | PHI | Cecil | 37 hr |
| Mar 10, 5:34 PM EST | Severe Thunderstorm Warning | LWX | Frederick, Washington | 41 min |
| Mar 10, 5:48 PM EST | Flash Flood Warning | LWX | Charles, Montgomery, Prince George's | 4 hr |
| Mar 10, 6:06 PM EST | Special Weather Statement | LWX | Washington | 24 min |
| Mar 10, 6:07 PM EST | Flash Flood Warning | LWX | Carroll, Frederick, Washington | 3 hr |
| Mar 10, 6:10 PM EST | Severe Thunderstorm Warning | LWX | Charles, Saint Mary's | 65 min |
| Mar 10, 6:29 PM EST | Flash Flood Warning | LWX | Anne Arundel, Baltimore, Carroll, Frederick, Harford, Howard and 2 more | 4 hr |
| Mar 10, 6:38 PM EST | Areal Flood Warning | LWX | Allegany, Washington | 3 hr |
| Mar 10, 6:58 PM EST | Tornado Warning | LWX | Montgomery | 32 min |
| Mar 10, 7:04 PM EST | River Flood Warning | LWX | Allegany | 9 hr |
| Mar 10, 7:06 PM EST | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Charles, Prince George's, Saint Mary's | 54 min |
| Mar 10, 7:20 PM EST | Special Weather Statement | LWX | Howard, Montgomery, Prince George's | 25 min |
| Mar 10, 7:30 PM EST | River Flood Warning | LWX | Allegany | 13 hr |
| Mar 10, 7:30 PM EST | Special Weather Statement | LWX | Baltimore, Carroll | 30 min |
| Mar 10, 7:32 PM EST | River Flood Warning | LWX | Montgomery | 55 hr |
| Mar 10, 7:56 PM EST | Special Weather Statement | AKQ | Dorchester, Somerset, Wicomico, Worcester | 79 min |
| Mar 11, 3:13 AM EST | Coastal Flood Advisory | LWX | Anne Arundel, Baltimore, Calvert, Charles, Prince George's, Saint Mary's and 1 more | 12 hr |
| Mar 11, 3:25 AM EST | Coastal Flood Advisory | PHI | Caroline, Kent, Queen Anne's, Talbot | 7 hr |
| Mar 11, 10:31 AM EST | River Flood Warning | PHI | Cecil, Harford | 65 hr |
| Mar 11, 3:13 PM EST | Coastal Flood Advisory | LWX | Prince George's | 27 hr |
| Mar 16, 3:06 AM EDT | Special Weather Statement | AKQ | Dorchester, Somerset, Wicomico, Worcester | 54 min |
| Mar 16, 3:07 AM EDT | Special Weather Statement | AKQ | Dorchester, Somerset, Wicomico, Worcester | 53 min |
| Mar 16, 4:37 AM EDT | Special Weather Statement | AKQ | Worcester | 23 min |
| Mar 21, 4:25 AM EDT | Special Weather Statement | PBZ | Garrett | 35 min |
| Mar 21, 4:46 AM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Baltimore, Calvert, City of Baltimore | 7 hr |
| Mar 21, 5:00 AM EDT | Special Weather Statement | PBZ | Garrett | 60 min |
| Mar 21, 6:07 AM EDT | Special Weather Statement | LWX | Frederick | 23 min |
| Mar 21, 6:12 AM EDT | Special Weather Statement | PHI | Cecil | 63 min |
| Mar 21, 6:18 AM EDT | Special Weather Statement | LWX | Montgomery | 27 min |
| Mar 21, 6:22 AM EDT | Special Weather Statement | LWX | Carroll | 23 min |
| Mar 21, 6:46 AM EDT | Special Weather Statement | LWX | Anne Arundel, Prince George's | 29 min |
| Mar 21, 6:51 AM EDT | Special Weather Statement | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 54 min |
| Mar 21, 7:08 AM EDT | Special Weather Statement | LWX | Anne Arundel | 22 min |
| Mar 21, 7:58 AM EDT | Special Weather Statement | PHI | Caroline, Talbot | 92 min |
| Mar 21, 4:34 PM EDT | Special Weather Statement | PBZ | Garrett | 41 min |
| Mar 21, 6:15 PM EDT | Special Weather Statement | PBZ | Garrett | 60 min |
| Mar 21, 7:24 PM EDT | Special Weather Statement | LWX | Charles | 66 min |
| Mar 21, 7:40 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Charles, Prince George's, Saint Mary's | 27 min |
| Mar 21, 7:59 PM EDT | Special Weather Statement | LWX | Calvert, Saint Mary's | 46 min |
| Mar 21, 8:03 PM EDT | Special Weather Statement | AKQ | Dorchester, Somerset | 57 min |
| Mar 23, 1:13 PM EDT | Tornado Watch | SPC | Garrett | 7 hr |
| Mar 23, 3:36 PM EDT | Special Weather Statement | PBZ | Garrett | 54 min |
| Mar 23, 3:47 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 58 min |
| Mar 23, 3:54 PM EDT | Mesoscale Discussion | SPC | Allegany, Garrett, Washington | 96 min |
| Mar 23, 4:13 PM EDT | Severe Thunderstorm Watch | SPC | Allegany, Carroll, Frederick, Howard, Montgomery, Washington | 5 hr |
| Mar 23, 4:37 PM EDT | Special Weather Statement | LWX | Allegany | 23 min |
| Mar 23, 5:46 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 59 min |
| Mar 23, 6:02 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 45 min |
| Mar 23, 6:07 PM EDT | Special Weather Statement | LWX | Carroll, Frederick | 23 min |
| Mar 23, 6:20 PM EDT | Special Weather Statement | LWX | Allegany | 40 min |
| Mar 23, 6:29 PM EDT | Special Weather Statement | LWX | Baltimore, Carroll | 31 min |
| Mar 23, 6:29 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 23 min |
| Mar 23, 6:53 PM EDT | Special Weather Statement | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 112 min |
| Mar 23, 6:57 PM EDT | Special Weather Statement | LWX | Baltimore, Harford | 33 min |
| Mar 23, 7:03 PM EDT | Special Weather Statement | LWX | Washington | 42 min |
| Mar 23, 7:25 PM EDT | Special Weather Statement | LWX | Anne Arundel | 35 min |
| Mar 23, 7:34 PM EDT | Special Weather Statement | LWX | Carroll, Frederick | 56 min |
| Mar 23, 8:13 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Charles, Howard, Montgomery, Prince George's and 1 more | 92 min |
| Mar 23, 8:17 PM EDT | Special Weather Statement | AKQ | Dorchester, Somerset, Wicomico, Worcester | 58 min |
| Mar 23, 8:30 PM EDT | Special Weather Statement | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 2 hr |
| Mar 23, 8:51 PM EDT | Special Weather Statement | LWX | Charles | 24 min |
| Mar 23, 9:18 PM EDT | Special Weather Statement | LWX | Calvert | 27 min |
| Mar 23, 10:36 PM EDT | Special Weather Statement | PHI | Caroline, Queen Anne's | 114 min |
| Mar 24, 6:19 AM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Baltimore, Calvert, City of Baltimore | 8 hr |
| Mar 26, 4:09 AM EDT | Winter Weather Advisory | LWX | Calvert, Charles, Saint Mary's | 30 hr |
| Mar 26, 2:53 PM EDT | Winter Weather Advisory | AKQ | Dorchester, Somerset, Wicomico | 21 hr |
| Mar 26, 3:25 PM EDT | Winter Weather Advisory | PHI | Caroline, Talbot | 19 hr |
| Mar 29, 3:18 PM EDT | Winter Weather Advisory | LWX | Allegany | 21 hr |
| Mar 31, 12:29 AM EDT | Winter Weather Advisory | LWX | Allegany | 8 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Anne Arundel County18
- Prince George's County17
- Charles County16
- Allegany County15
- Baltimore County15
- Calvert County15
- Saint Mary's County14
- Montgomery County14
- Frederick County13
- Washington County13
- City of Baltimore12
- Caroline County11
- Cecil County11
- Carroll County10
- Talbot County10
- Garrett County10
- Queen Anne's County9
- Dorchester County9
- Somerset County9
- Kent County8
- Wicomico County8
- Howard County7
- Worcester County6
- Harford County5
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. Rebuilt daily.