Alert archive / Maryland / 2009
Weather alerts in Maryland, August 2009
123 weather alerts in August 2009, 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 2009. Tap one for its archive.
- Alerts
- 123
- Warnings
- 66
- Watches
- 15
- Advisories
- 24
- Busiest day
- August 22, 200922 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 2, 2:19 AM EDT | Flash Flood Watch | PHI | Cecil | 13 hr |
| Aug 2, 4:06 AM EDT | Flash Flood Watch | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 3 more | 10 hr |
| Aug 2, 7:12 AM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick, Washington | 67 min |
| Aug 2, 10:08 AM EDT | Flash Flood Warning | PHI | Cecil | 9 hr |
| Aug 2, 10:08 AM EDT | Severe Thunderstorm Warning | PHI | Cecil | 67 min |
| Aug 2, 10:25 AM EDT | Flash Flood Warning | LWX | Harford | 2 hr |
| Aug 2, 10:32 AM EDT | Tornado Warning | PHI | Cecil | 28 min |
| Aug 2, 10:39 AM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent, Queen Anne's | 96 min |
| Aug 2, 11:33 AM EDT | Mesoscale Discussion | SPC | Calvert, Caroline, Dorchester, Queen Anne's, Saint Mary's, Somerset and 3 more | 2 hr |
| Aug 2, 12:10 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Talbot | 65 min |
| Aug 2, 12:13 PM EDT | Areal Flood Advisory | PHI | Caroline, Kent, Queen Anne's, Talbot | 3 hr |
| Aug 2, 12:32 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester, Wicomico | 43 min |
| Aug 2, 12:42 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester, Wicomico | 48 min |
| Aug 2, 3:03 PM EDT | Areal Flood Advisory | AKQ | Somerset, Wicomico, Worcester | 87 min |
| Aug 2, 3:39 PM EDT | Flash Flood Warning | AKQ | Wicomico, Worcester | 2 hr |
| Aug 2, 6:21 PM EDT | Tornado Warning | AKQ | Dorchester, Wicomico | 39 min |
| Aug 2, 7:00 PM EDT | Tornado Warning | AKQ | Dorchester, Wicomico | 30 min |
| Aug 2, 7:15 PM EDT | Areal Flood Advisory | AKQ | Somerset, Wicomico, Worcester | 60 min |
| Aug 2, 7:30 PM EDT | Tornado Warning | AKQ | Somerset, Wicomico | 35 min |
| Aug 2, 7:40 PM EDT | Flash Flood Warning | AKQ | Somerset, Wicomico, Worcester | 89 min |
| Aug 9, 11:57 AM EDT | Flash Flood Watch | PHI | Cecil | 11 hr |
| Aug 9, 1:56 PM EDT | Heat Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 30 hr |
| Aug 9, 2:45 PM EDT | Mesoscale Discussion | SPC | Carroll, Cecil, Harford | 60 min |
| Aug 9, 3:17 PM EDT | Heat Advisory | AKQ | Dorchester, Somerset, Wicomico, Worcester | 29 hr |
| Aug 9, 3:18 PM EDT | Severe Thunderstorm Watch | SPC | Cecil | 5 hr |
| Aug 9, 3:31 PM EDT | Heat Advisory | LWX | Anne Arundel, Baltimore, Calvert, Charles, Prince George's, Saint Mary's and 1 more | 28 hr |
| Aug 9, 5:33 PM EDT | Severe Thunderstorm Watch | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Dorchester and 11 more | 4 hr |
| Aug 9, 5:53 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 82 min |
| Aug 9, 6:03 PM EDT | Areal Flood Advisory | PHI | Cecil | 117 min |
| Aug 9, 6:29 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 45 min |
| Aug 9, 6:48 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Cecil, Kent, Queen Anne's | 72 min |
| Aug 9, 7:11 PM EDT | Mesoscale Discussion | SPC | Baltimore, Caroline, Cecil, Harford, Kent, Queen Anne's | 2 hr |
| Aug 10, 11:06 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 54 min |
| Aug 11, 8:09 PM EDT | Severe Thunderstorm Warning | PHI | Queen Anne's, Talbot | 66 min |
| Aug 11, 8:42 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester | 48 min |
| Aug 11, 9:04 PM EDT | Severe Thunderstorm Warning | PHI | Talbot | 26 min |
| Aug 12, 12:36 PM EDT | Mesoscale Discussion | SPC | Allegany, Garrett, Washington | 84 min |
| Aug 12, 1:01 PM EDT | Mesoscale Discussion | SPC | Caroline, Cecil, Harford, Kent, Queen Anne's, Wicomico and 1 more | 89 min |
| Aug 12, 4:16 PM EDT | Areal Flood Advisory | PHI | Caroline, Queen Anne's, Talbot | 3 hr |
| Aug 12, 5:55 PM EDT | Flash Flood Warning | PHI | Cecil | 100 min |
| Aug 12, 7:37 PM EDT | Areal Flood Advisory | AKQ | Somerset, Wicomico, Worcester | 113 min |
| Aug 13, 2:58 AM EDT | Areal Flood Advisory | PHI | Cecil | 3 hr |
| Aug 13, 3:17 AM EDT | Dense Fog Advisory | PBZ | 7 hr | |
| Aug 13, 3:36 AM EDT | Flood Watch | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 36 min |
| Aug 13, 4:12 AM EDT | Flash Flood Watch | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 15 hr |
| Aug 18, 2:32 PM EDT | Mesoscale Discussion | SPC | Allegany, Garrett | 88 min |
| Aug 18, 5:10 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 32 min |
| Aug 18, 5:25 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll | 50 min |
| Aug 18, 5:28 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford, City of Baltimore | 47 min |
| Aug 18, 6:15 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford | 37 min |
| Aug 18, 6:48 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 72 min |
| Aug 18, 7:54 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 36 min |
| Aug 18, 8:35 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 55 min |
| Aug 19, 4:19 PM EDT | Severe Thunderstorm Warning | LWX | Saint Mary's | 41 min |
| Aug 19, 4:35 PM EDT | Tornado Warning | LWX | Saint Mary's | 40 min |
| Aug 19, 5:15 PM EDT | Severe Thunderstorm Warning | LWX | Saint Mary's | 45 min |
| Aug 19, 6:05 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Calvert, Caroline, Cecil, Dorchester, Harford and 7 more | 55 min |
| Aug 20, 5:21 PM EDT | Coastal Flood Statement | AKQ | Worcester | 59 hr |
| Aug 20, 6:54 PM EDT | Severe Thunderstorm Watch | SPC | Garrett | 5 hr |
| Aug 20, 10:40 PM EDT | Mesoscale Discussion | SPC | Allegany, Garrett | 95 min |
| Aug 21, 12:16 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Charles, Dorchester and 8 more | 119 min |
| Aug 21, 12:36 PM EDT | Severe Thunderstorm Watch | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 15 more | 7 hr |
| Aug 21, 2:47 PM EDT | Flash Flood Watch | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 35 hr |
| Aug 21, 2:53 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Saint Mary's | 37 min |
| Aug 21, 3:21 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Calvert, Caroline, Charles, Dorchester, Prince George's and 3 more | 84 min |
| Aug 21, 3:28 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 32 min |
| Aug 21, 3:28 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent, Queen Anne's | 62 min |
| Aug 21, 3:48 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's, Talbot | 57 min |
| Aug 21, 4:05 PM EDT | High Surf Advisory | AKQ | Worcester | 37 hr |
| Aug 21, 4:13 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent, Queen Anne's | 77 min |
| Aug 21, 6:33 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Montgomery | 42 min |
| Aug 21, 7:07 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick, Howard, Montgomery | 53 min |
| Aug 21, 7:16 PM EDT | Tornado Warning | LWX | Carroll, Frederick, Howard, Montgomery | 29 min |
| Aug 21, 7:30 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Cecil, Charles and 11 more | 60 min |
| Aug 21, 7:39 PM EDT | Tornado Warning | LWX | Baltimore, Carroll, Howard | 20 min |
| Aug 21, 7:47 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Howard, City of Baltimore | 33 min |
| Aug 21, 9:44 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford | 16 min |
| Aug 21, 10:14 PM EDT | Areal Flood Advisory | PHI | Cecil, Kent | 3 hr |
| Aug 21, 11:49 PM EDT | Areal Flood Advisory | PHI | Caroline, Queen Anne's, Talbot | 116 min |
| Aug 22, 12:45 AM EDT | Areal Flood Warning | PHI | Caroline | 17 hr |
| Aug 22, 1:28 AM EDT | Flash Flood Warning | PHI | Caroline, Queen Anne's | 4 hr |
| Aug 22, 2:19 AM EDT | Areal Flood Advisory | PHI | Caroline, Queen Anne's, Talbot | 6 hr |
| Aug 22, 4:06 AM EDT | Flash Flood Watch | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 3 more | 19 hr |
| Aug 22, 4:26 AM EDT | Areal Flood Advisory | PHI | Caroline | 6 hr |
| Aug 22, 5:42 AM EDT | Areal Flood Advisory | PHI | Caroline, Queen Anne's | 3 hr |
| Aug 22, 8:12 AM EDT | Areal Flood Advisory | PHI | Caroline, Kent, Queen Anne's, Talbot | 3 hr |
| Aug 22, 9:21 AM EDT | Areal Flood Advisory | AKQ | Somerset, Wicomico | 114 min |
| Aug 22, 11:17 AM EDT | Areal Flood Advisory | AKQ | Somerset, Wicomico, Worcester | 118 min |
| Aug 22, 1:01 PM EDT | Areal Flood Advisory | AKQ | Somerset, Worcester | 119 min |
| Aug 22, 1:58 PM EDT | Flash Flood Watch | AKQ | Dorchester, Somerset, Wicomico, Worcester | 7 hr |
| Aug 22, 2:11 PM EDT | Severe Thunderstorm Watch | SPC | Calvert, Charles, Dorchester, Saint Mary's, Somerset, Wicomico and 1 more | 5 hr |
| Aug 22, 3:53 PM EDT | Flash Flood Warning | PHI | Caroline, Talbot | 6 hr |
| Aug 22, 4:46 PM EDT | Flash Flood Warning | PHI | Caroline | 5 hr |
| Aug 22, 4:47 PM EDT | Flash Flood Warning | LWX | Prince George's | 3 hr |
| Aug 22, 4:49 PM EDT | Flash Flood Warning | LWX | Charles | 3 hr |
| Aug 22, 5:38 PM EDT | Flash Flood Warning | LWX | Anne Arundel, Calvert | 5 hr |
| Aug 22, 5:40 PM EDT | Areal Flood Warning | PHI | Caroline | 14 hr |
| Aug 22, 6:02 PM EDT | Flash Flood Warning | PHI | Cecil, Kent, Queen Anne's | 4 hr |
| Aug 23, 8:08 AM EDT | Coastal Flood Statement | AKQ | Worcester | 60 hr |
| Aug 24, 4:46 AM EDT | Severe Thunderstorm Warning | LWX | Saint Mary's | 58 min |
| Aug 27, 1:51 PM EDT | Coastal Flood Statement | AKQ | Worcester | 3 hr |
| Aug 27, 5:04 PM EDT | Coastal Flood Statement | AKQ | Worcester | 72 hr |
| Aug 28, 12:12 AM EDT | Flash Flood Warning | LWX | Carroll | 4 hr |
| Aug 28, 12:29 AM EDT | Flash Flood Warning | LWX | Baltimore | 4 hr |
| Aug 28, 1:01 AM EDT | Flash Flood Warning | LWX | Harford | 4 hr |
| Aug 28, 1:40 AM EDT | Flash Flood Warning | PHI | Cecil | 5 hr |
| Aug 28, 5:00 AM EDT | Flash Flood Warning | LWX | Harford | 77 min |
| Aug 28, 5:50 AM EDT | Flash Flood Watch | LWX | Anne Arundel, Baltimore, Carroll, Frederick, Prince George's, City of Baltimore | 22 hr |
| Aug 28, 12:13 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 47 min |
| Aug 28, 12:24 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Calvert, Caroline, Dorchester, Kent, Queen Anne's and 3 more | 2 hr |
| Aug 28, 1:29 PM EDT | Flash Flood Warning | LWX | Harford | 103 min |
| Aug 28, 1:47 PM EDT | Flash Flood Warning | LWX | Carroll, Frederick, Howard, Montgomery | 103 min |
| Aug 28, 2:13 PM EDT | Flash Flood Warning | PHI | Cecil | 2 hr |
| Aug 28, 2:52 PM EDT | Flash Flood Watch | PHI | Cecil | 14 hr |
| Aug 28, 2:53 PM EDT | Flash Flood Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 6 hr |
| Aug 28, 3:21 PM EDT | Flash Flood Warning | PHI | Caroline, Talbot | 6 hr |
| Aug 28, 6:03 PM EDT | Areal Flood Advisory | AKQ | Dorchester, Somerset, Wicomico | 57 min |
| Aug 28, 6:49 PM EDT | Areal Flood Advisory | PHI | Caroline, Talbot | 5 hr |
| Aug 28, 7:40 PM EDT | Areal Flood Advisory | AKQ | Dorchester, Somerset, Wicomico | 2 hr |
| Aug 28, 9:28 PM EDT | Flash Flood Warning | LWX | Carroll | 3 hr |
| Aug 29, 9:47 PM EDT | Severe Thunderstorm Warning | PHI | Kent, Queen Anne's | 58 min |
| Aug 29, 10:02 PM EDT | Special Weather Statement | CTP | Cecil | 28 min |
| Aug 30, 6:47 PM EDT | Coastal Flood Statement | AKQ | Worcester | 49 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 | 34 |
| Tornado Warning | 7 |
| Severe Thunderstorm Watch | 5 |
| Mesoscale Discussion | 12 |
| Special Weather Statement | 1 |
| Flooding | |
| Areal Flood Warning | 2 |
| Flash Flood Warning | 23 |
| Flash Flood Watch | 9 |
| Flood Watch | 1 |
| Areal Flood Advisory | 19 |
| Heat | |
| Heat Advisory | 3 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
| Coast and beach | |
| High Surf Advisory | 1 |
| Coastal Flood Statement | 5 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Caroline County34
- Queen Anne's County32
- Cecil County31
- Talbot County27
- Kent County24
- Wicomico County24
- Worcester County21
- Dorchester County18
- Baltimore County16
- Somerset County16
- Anne Arundel County15
- Saint Mary's County15
- Harford County15
- Calvert County14
- Carroll County14
- Prince George's County11
- Frederick County10
- City of Baltimore10
- Charles County9
- Howard County9
- Montgomery County8
- Garrett County4
- Washington County3
- Allegany County3
Nearby
Alerts in force nowTornadoes on recordThe radar archive20082010
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.