Alert archive / Maryland / 2009
Weather alerts in Maryland, March 2009
23 weather alerts in March 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 March 2009. Tap one for its archive.
- Alerts
- 23
- Warnings
- 8
- Watches
- 0
- Advisories
- 11
- Busiest day
- March 1, 20096 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 1, 3:30 AM EST | Winter Storm Warning | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 37 hr |
| Mar 1, 4:06 AM EST | Winter Storm Warning | AKQ | Dorchester, Somerset, Wicomico, Worcester | 31 hr |
| Mar 1, 4:11 AM EST | Winter Storm Warning | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 3 more | 34 hr |
| Mar 1, 4:11 AM EST | Winter Weather Advisory | LWX | Frederick, Washington | 31 hr |
| Mar 1, 3:44 PM EST | Winter Weather Advisory | AKQ | Worcester | 19 hr |
| Mar 1, 5:01 PM EST | Mesoscale Discussion | SPC | Anne Arundel, Calvert, Caroline, Cecil, Charles, Dorchester and 6 more | 2 hr |
| Mar 1, 9:09 PM EST | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Cecil, Dorchester and 6 more | 4 hr |
| Mar 2, 5:38 AM EST | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Cecil, Harford and 5 more | 3 hr |
| Mar 2, 2:27 PM EST | Wind Chill Advisory | PBZ | 13 hr | |
| Mar 2, 3:03 PM EST | Wind Chill Advisory | LWX | Allegany, Anne Arundel, Baltimore, Carroll, Frederick, Prince George's and 2 more | 18 hr |
| Mar 8, 3:04 PM EDT | Wind Advisory | LWX | Allegany, Baltimore, Carroll, Frederick, Washington | 23 hr |
| Mar 9, 4:12 AM EDT | Wind Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 12 hr |
| Mar 17, 6:59 AM EDT | Dense Fog Advisory | PBZ | 5 hr | |
| Mar 18, 6:19 AM EDT | Dense Fog Advisory | LWX | Anne Arundel, Baltimore, Calvert, Charles, Prince George's, Saint Mary's and 1 more | 4 hr |
| Mar 23, 4:23 AM EDT | Red Flag Warning | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 19 hr |
| Mar 27, 1:51 AM EDT | Dense Fog Advisory | LWX | Baltimore, Carroll, Frederick, Washington | 7 hr |
| Mar 27, 5:26 AM EDT | Dense Fog Advisory | PBZ | 6 hr | |
| Mar 29, 1:49 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Carroll, Cecil, Frederick, Harford and 5 more | 116 min |
| Mar 29, 2:31 PM EDT | Wind Advisory | LWX | Allegany | 20 hr |
| Mar 29, 4:20 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 22 min |
| Mar 29, 5:31 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 29 min |
| Mar 29, 5:45 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Harford | 25 min |
| Mar 29, 6:11 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 64 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 | 4 |
| Mesoscale Discussion | 4 |
| Winter | |
| Winter Storm Warning | 3 |
| Winter Weather Advisory | 2 |
| Cold | |
| Wind Chill Advisory | 2 |
| Wind and dust | |
| Wind Advisory | 3 |
| Fire | |
| Red Flag Warning | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 4 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Baltimore County9
- Cecil County8
- Kent County7
- Anne Arundel County7
- Frederick County7
- City of Baltimore7
- Caroline County6
- Queen Anne's County6
- Talbot County6
- Carroll County6
- Washington County6
- Calvert County5
- Prince George's County5
- Harford County5
- Dorchester County3
- Charles County3
- Saint Mary's County3
- Allegany County3
- Worcester County2
- Howard County2
- Somerset County1
- Wicomico County1
- Montgomery County1
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. Warning verification from the Mesonet's Cow. Rebuilt daily.