Alert archive / Maryland / 2010
Weather alerts in Maryland, August 2010
129 weather alerts in August 2010, 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 August 2010. Tap one for its archive.
- Alerts
- 129
- Warnings
- 46
- Watches
- 10
- Advisories
- 9
- Busiest day
- August 5, 201033 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 |
|---|---|---|---|---|
| Aug 4, 6:17 AM EDT | Special Weather Statement | PHI | Caroline | 58 min |
| Aug 4, 2:18 PM EDT | Severe Thunderstorm Watch | SPC | Garrett | 7 hr |
| Aug 4, 2:56 PM EDT | Heat Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 29 hr |
| Aug 4, 3:07 PM EDT | Heat Advisory | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 3 more | 29 hr |
| Aug 4, 4:04 PM EDT | Heat Advisory | AKQ | Dorchester, Somerset, Wicomico, Worcester | 27 hr |
| Aug 4, 5:09 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 66 min |
| Aug 4, 5:30 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 10 more | 30 min |
| Aug 4, 5:34 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 56 min |
| Aug 4, 5:52 PM EDT | Severe Thunderstorm Watch | SPC | Allegany, Anne Arundel, Baltimore, Carroll, Charles, Frederick and 6 more | 5 hr |
| Aug 4, 6:10 PM EDT | Severe Thunderstorm Warning | LWX | Allegany, Washington | 65 min |
| Aug 4, 6:59 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Montgomery, Washington | 61 min |
| Aug 4, 7:11 PM EDT | Special Weather Statement | LWX | Carroll | 34 min |
| Aug 4, 7:25 PM EDT | Special Weather Statement | AKQ | Somerset | 65 min |
| Aug 4, 7:48 PM EDT | Special Weather Statement | AKQ | Somerset | 57 min |
| Aug 4, 7:48 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Carroll, Charles, Frederick and 7 more | 87 min |
| Aug 4, 7:53 PM EDT | Special Weather Statement | LWX | Carroll, Howard, Montgomery | 37 min |
| Aug 4, 7:56 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 64 min |
| Aug 4, 8:00 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick | 45 min |
| Aug 4, 8:35 PM EDT | Special Weather Statement | LWX | Baltimore, Howard, City of Baltimore | 40 min |
| Aug 4, 8:36 PM EDT | Severe Thunderstorm Watch | SPC | Calvert, Caroline, Cecil, Dorchester, Kent, Queen Anne's and 5 more | 4 hr |
| Aug 4, 8:46 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Harford | 59 min |
| Aug 4, 8:50 PM EDT | Special Weather Statement | LWX | Baltimore, City of Baltimore | 55 min |
| Aug 4, 9:09 PM EDT | Special Weather Statement | PHI | Cecil | 51 min |
| Aug 4, 9:25 PM EDT | Special Weather Statement | PHI | Cecil | 65 min |
| Aug 4, 9:32 PM EDT | Special Weather Statement | LWX | Harford | 43 min |
| Aug 4, 9:36 PM EDT | Special Weather Statement | PHI | Cecil | 54 min |
| Aug 4, 10:08 PM EDT | Severe Thunderstorm Watch | SPC | Garrett | 6 hr |
| Aug 4, 10:17 PM EDT | Special Weather Statement | PHI | Cecil | 43 min |
| Aug 4, 11:52 PM EDT | Mesoscale Discussion | SPC | Allegany, Garrett | 113 min |
| Aug 5, 12:37 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 14 more | 53 min |
| Aug 5, 1:19 PM EDT | Severe Thunderstorm Watch | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Caroline, Carroll and 17 more | 9 hr |
| Aug 5, 3:01 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery, Prince George's | 44 min |
| Aug 5, 3:45 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Charles, Prince George's, Saint Mary's | 60 min |
| Aug 5, 3:53 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 52 min |
| Aug 5, 3:56 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Charles and 14 more | 64 min |
| Aug 5, 4:03 PM EDT | Special Weather Statement | AKQ | Dorchester | 57 min |
| Aug 5, 4:17 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's, Talbot | 58 min |
| Aug 5, 4:18 PM EDT | Tornado Warning | LWX | Anne Arundel, Calvert, Prince George's | 21 min |
| Aug 5, 4:29 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester | 61 min |
| Aug 5, 5:15 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's, Talbot | 60 min |
| Aug 5, 5:22 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Charles, Saint Mary's | 53 min |
| Aug 5, 5:29 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery, Prince George's | 46 min |
| Aug 5, 5:35 PM EDT | Special Weather Statement | AKQ | Somerset, Wicomico | 55 min |
| Aug 5, 5:48 PM EDT | Severe Thunderstorm Warning | AKQ | Somerset, Wicomico, Worcester | 42 min |
| Aug 5, 5:59 PM EDT | Special Weather Statement | LWX | Prince George's | 31 min |
| Aug 5, 6:19 PM EDT | Special Weather Statement | LWX | Calvert, Charles | 26 min |
| Aug 5, 6:23 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 15 more | 97 min |
| Aug 5, 6:29 PM EDT | Severe Thunderstorm Warning | AKQ | Somerset, Wicomico, Worcester | 46 min |
| Aug 5, 7:01 PM EDT | Severe Thunderstorm Warning | AKQ | Worcester | 44 min |
| Aug 5, 7:57 PM EDT | Special Weather Statement | LWX | Saint Mary's | 33 min |
| Aug 5, 8:03 PM EDT | Special Weather Statement | AKQ | Dorchester, Somerset, Wicomico, Worcester | 87 min |
| Aug 9, 3:16 AM EDT | Dense Fog Advisory | AKQ | Dorchester, Somerset, Wicomico, Worcester | 5 hr |
| Aug 12, 5:58 AM EDT | Special Weather Statement | LWX | Frederick | 47 min |
| Aug 12, 6:10 AM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick, Howard, Montgomery | 35 min |
| Aug 12, 6:28 AM EDT | Severe Thunderstorm Warning | LWX | Frederick, Howard, Montgomery | 32 min |
| Aug 12, 7:01 AM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Dorchester, Howard and 9 more | 119 min |
| Aug 12, 7:03 AM EDT | Special Weather Statement | LWX | Anne Arundel, Prince George's | 27 min |
| Aug 12, 7:07 AM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Montgomery, Prince George's | 38 min |
| Aug 12, 7:13 AM EDT | Special Weather Statement | PHI | Caroline, Cecil, Kent, Queen Anne's | 62 min |
| Aug 12, 7:35 AM EDT | Special Weather Statement | PHI | Kent | 55 min |
| Aug 12, 7:40 AM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Charles, Montgomery, Prince George's | 50 min |
| Aug 12, 7:56 AM EDT | Special Weather Statement | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 2 hr |
| Aug 12, 8:12 AM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Charles, Prince George's, Saint Mary's | 63 min |
| Aug 12, 8:24 AM EDT | Severe Thunderstorm Warning | PHI | Queen Anne's, Talbot | 66 min |
| Aug 12, 8:28 AM EDT | Severe Thunderstorm Warning | AKQ | Dorchester, Wicomico | 47 min |
| Aug 12, 8:31 AM EDT | Special Weather Statement | PHI | Cecil, Queen Anne's | 59 min |
| Aug 12, 8:37 AM EDT | Tornado Warning | PHI | Queen Anne's, Talbot | 23 min |
| Aug 12, 9:15 AM EDT | Special Weather Statement | LWX | Calvert, Saint Mary's | 30 min |
| Aug 12, 9:16 AM EDT | Severe Thunderstorm Warning | AKQ | Dorchester, Somerset, Wicomico, Worcester | 59 min |
| Aug 12, 9:19 AM EDT | Flash Flood Warning | LWX | Calvert, Charles, Prince George's, Saint Mary's | 86 min |
| Aug 12, 9:29 AM EDT | Mesoscale Discussion | SPC | Caroline, Dorchester, Saint Mary's, Somerset, Wicomico, Worcester | 91 min |
| Aug 12, 9:45 AM EDT | Special Weather Statement | LWX | Calvert, Saint Mary's | 45 min |
| Aug 12, 10:09 AM EDT | Severe Thunderstorm Warning | AKQ | Somerset, Wicomico, Worcester | 66 min |
| Aug 12, 1:52 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Calvert, Charles, Dorchester, Frederick and 8 more | 83 min |
| Aug 12, 2:51 PM EDT | Severe Thunderstorm Watch | SPC | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 6 more | 5 hr |
| Aug 12, 4:15 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 60 min |
| Aug 12, 4:16 PM EDT | Special Weather Statement | LWX | Carroll, Frederick, Washington | 44 min |
| Aug 12, 4:18 PM EDT | Tornado Warning | LWX | Carroll, Frederick | 42 min |
| Aug 12, 4:35 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Frederick, Washington | 55 min |
| Aug 12, 4:48 PM EDT | Tornado Warning | LWX | Carroll, Frederick, Howard, Montgomery | 27 min |
| Aug 12, 5:13 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Carroll, Frederick, Howard, Montgomery and 2 more | 62 min |
| Aug 12, 5:17 PM EDT | Tornado Warning | LWX | Carroll, Frederick, Howard, Montgomery | 43 min |
| Aug 12, 5:49 PM EDT | Flash Flood Warning | LWX | Howard, Montgomery, Prince George's | 115 min |
| Aug 12, 6:06 PM EDT | Special Weather Statement | LWX | Prince George's | 54 min |
| Aug 12, 7:10 PM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Baltimore, Calvert, Charles, Prince George's, Saint Mary's and 1 more | 3 days |
| Aug 12, 8:06 PM EDT | Flash Flood Warning | LWX | Baltimore, Harford | 114 min |
| Aug 12, 9:13 PM EDT | Special Weather Statement | PHI | Talbot | 92 min |
| Aug 12, 9:28 PM EDT | Special Weather Statement | LWX | Anne Arundel | 47 min |
| Aug 12, 9:35 PM EDT | Flash Flood Warning | LWX | Carroll, Frederick | 3 hr |
| Aug 12, 10:40 PM EDT | Flash Flood Warning | LWX | Carroll, Frederick, Howard, Montgomery | 2 hr |
| Aug 12, 11:02 PM EDT | Flash Flood Warning | LWX | Anne Arundel, Baltimore, City of Baltimore | 2 hr |
| Aug 13, 12:26 AM EDT | Flash Flood Warning | LWX | Anne Arundel, Calvert, Prince George's | 109 min |
| Aug 13, 4:43 AM EDT | Coastal Flood Statement | AKQ | Worcester | 39 hr |
| Aug 14, 10:37 PM EDT | Coastal Flood Statement | AKQ | Worcester | 21 hr |
| Aug 16, 2:01 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 14 more | 89 min |
| Aug 16, 2:13 PM EDT | Severe Thunderstorm Watch | SPC | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 7 more | 6 hr |
| Aug 16, 3:34 PM EDT | Special Weather Statement | LWX | Frederick | 26 min |
| Aug 16, 3:51 PM EDT | Special Weather Statement | LWX | Frederick | 24 min |
| Aug 16, 4:12 PM EDT | Special Weather Statement | LWX | Frederick | 33 min |
| Aug 16, 4:25 PM EDT | Special Weather Statement | LWX | Carroll | 35 min |
| Aug 16, 5:15 PM EDT | Special Weather Statement | LWX | Washington | 30 min |
| Aug 16, 5:33 PM EDT | Special Weather Statement | LWX | Carroll | 27 min |
| Aug 16, 8:57 PM EDT | Special Weather Statement | LWX | Baltimore | 33 min |
| Aug 16, 9:28 PM EDT | Special Weather Statement | LWX | Harford | 32 min |
| Aug 16, 10:02 PM EDT | Special Weather Statement | LWX | Harford | 28 min |
| Aug 17, 2:58 PM EDT | Flood Watch | LWX | Anne Arundel, Baltimore, Calvert, Charles, Prince George's, Saint Mary's and 1 more | 29 hr |
| Aug 17, 8:10 PM EDT | Special Weather Statement | AKQ | Dorchester | 65 min |
| Aug 18, 2:27 AM EDT | Special Weather Statement | AKQ | Dorchester, Wicomico | 63 min |
| Aug 18, 6:18 AM EDT | Areal Flood Warning | LWX | Montgomery, Prince George's | 4 hr |
| Aug 18, 7:38 AM EDT | Areal Flood Warning | LWX | Anne Arundel, Prince George's | 4 hr |
| Aug 18, 10:19 AM EDT | Areal Flood Warning | LWX | Montgomery | 116 min |
| Aug 18, 11:10 AM EDT | Areal Flood Advisory | PHI | Caroline, Kent, Queen Anne's, Talbot | 3 hr |
| Aug 22, 9:06 AM EDT | Special Weather Statement | PHI | Cecil | 24 min |
| Aug 22, 12:55 PM EDT | Special Weather Statement | AKQ | Worcester | 50 min |
| Aug 22, 1:48 PM EDT | Special Weather Statement | AKQ | Worcester | 42 min |
| Aug 22, 2:32 PM EDT | Special Weather Statement | PHI | Cecil, Kent | 58 min |
| Aug 22, 2:50 PM EDT | Special Weather Statement | PHI | Kent | 55 min |
| Aug 22, 4:36 PM EDT | Special Weather Statement | AKQ | Dorchester, Wicomico | 54 min |
| Aug 22, 5:06 PM EDT | Special Weather Statement | PHI | Caroline | 54 min |
| Aug 22, 7:09 PM EDT | Special Weather Statement | AKQ | Somerset, Wicomico, Worcester | 66 min |
| Aug 24, 1:33 PM EDT | Coastal Flood Advisory | AKQ | Worcester | 21 hr |
| Aug 24, 2:50 PM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Baltimore, Calvert, Charles, Prince George's, Saint Mary's and 1 more | 30 hr |
| Aug 24, 9:47 PM EDT | Coastal Flood Advisory | PHI | Caroline, Queen Anne's, Talbot | 10 hr |
| Aug 28, 7:02 PM EDT | Coastal Flood Statement | AKQ | Worcester | 25 hr |
| Aug 28, 11:00 PM EDT | Hurricane Watch | NHC | Worcester | 5 days |
| Aug 29, 11:00 AM EDT | Tropical Storm Warning | NHC | Worcester | 7 days |
| Aug 30, 4:55 PM EDT | Coastal Flood Statement | AKQ | Worcester | 12 hr |
| Aug 31, 3:54 PM EDT | Coastal Flood Statement | AKQ | Worcester | 20 hr |
| Aug 31, 5:43 PM EDT | Hurricane Watch | AKQ | Worcester | 60 hr |
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 | 30 |
| Tornado Warning | 5 |
| Severe Thunderstorm Watch | 7 |
| Mesoscale Discussion | 10 |
| Special Weather Statement | 49 |
| Flooding | |
| Areal Flood Warning | 3 |
| Flash Flood Warning | 7 |
| Flood Watch | 1 |
| Areal Flood Advisory | 1 |
| Heat | |
| Heat Advisory | 3 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
| Tropical | |
| Tropical Storm Warning | 1 |
| Hurricane Watch | 2 |
| Coast and beach | |
| Coastal Flood Advisory | 4 |
| Coastal Flood Statement | 5 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Prince George's County32
- Frederick County28
- Montgomery County28
- Anne Arundel County27
- Carroll County26
- Calvert County25
- Worcester County25
- Baltimore County23
- Charles County23
- Saint Mary's County23
- Howard County21
- Dorchester County19
- Wicomico County19
- Talbot County18
- City of Baltimore18
- Somerset County18
- Caroline County17
- Queen Anne's County17
- Kent County16
- Cecil County15
- Harford County15
- Washington County15
- Allegany County8
- Garrett County5
Nearby
Alerts in force nowTornadoes on recordThe radar archive20092011
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.