Alert archive / Maryland / 2009
Weather alerts in Maryland, January 2009
40 weather alerts in January 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 January 2009. Tap one for its archive.
- Alerts
- 40
- Warnings
- 6
- Watches
- 4
- Advisories
- 29
- Busiest day
- January 27, 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 |
|---|---|---|---|---|
| Jan 5, 4:09 AM EST | Winter Storm Watch | LWX | Allegany, Baltimore, Carroll, Frederick, Washington, City of Baltimore | 11 hr |
| Jan 5, 2:57 PM EST | Winter Weather Advisory | LWX | Allegany, Baltimore, Carroll, Frederick, Washington | 45 hr |
| Jan 5, 3:50 PM EST | Winter Weather Advisory | PBZ | 36 hr | |
| Jan 5, 9:46 PM EST | Winter Storm Warning | LWX | Allegany, Washington | 38 hr |
| Jan 5, 9:46 PM EST | Winter Storm Warning | PBZ | 36 hr | |
| Jan 6, 4:39 AM EST | Winter Weather Advisory | PHI | Cecil, Kent | 23 hr |
| Jan 7, 12:24 AM EST | Dense Fog Advisory | AKQ | Dorchester, Somerset, Wicomico, Worcester | 7 hr |
| Jan 7, 8:21 AM EST | Areal Flood Advisory | PHI | Cecil, Kent, Queen Anne's | 8 hr |
| Jan 7, 2:55 PM EST | Winter Weather Advisory | LWX | Allegany | 38 hr |
| Jan 7, 3:01 PM EST | Wind Advisory | LWX | Allegany | 13 hr |
| Jan 7, 3:31 PM EST | Winter Weather Advisory | PBZ | 37 hr | |
| Jan 9, 12:32 PM EST | Winter Weather Advisory | PBZ | 34 hr | |
| Jan 9, 3:27 PM EST | Winter Weather Advisory | PHI | Cecil | 37 hr |
| Jan 10, 1:17 PM EST | Winter Weather Advisory | LWX | Allegany, Baltimore, Carroll, Frederick, Washington | 15 hr |
| Jan 11, 7:40 PM EST | Winter Weather Advisory | LWX | Allegany | 14 hr |
| Jan 13, 10:42 AM EST | Winter Weather Advisory | LWX | Allegany | 17 hr |
| Jan 14, 3:46 AM EST | Winter Weather Advisory | PBZ | 38 hr | |
| Jan 14, 11:06 AM EST | Winter Weather Advisory | LWX | Allegany | 28 hr |
| Jan 14, 2:36 PM EST | Wind Chill Advisory | PBZ | 69 hr | |
| Jan 14, 2:54 PM EST | Wind Chill Advisory | LWX | Allegany | 67 hr |
| Jan 15, 3:05 PM EST | Wind Chill Advisory | LWX | Baltimore, Carroll, Frederick, Washington, City of Baltimore | 25 hr |
| Jan 15, 3:48 PM EST | Wind Chill Advisory | AKQ | Dorchester, Somerset, Wicomico, Worcester | 18 hr |
| Jan 17, 2:36 PM EST | Winter Weather Advisory | PBZ | 45 hr | |
| Jan 18, 11:07 AM EST | Winter Weather Advisory | LWX | Allegany, Anne Arundel, Baltimore, Carroll, Frederick, Prince George's and 2 more | 33 hr |
| Jan 19, 5:00 AM EST | Dense Fog Advisory | AKQ | Somerset, Wicomico, Worcester | 5 hr |
| Jan 20, 2:45 PM EST | Wind Chill Advisory | LWX | Allegany | 18 hr |
| Jan 26, 2:42 AM EST | Winter Storm Watch | PHI | Cecil, Kent | 25 hr |
| Jan 26, 3:54 AM EST | Winter Storm Watch | LWX | Allegany, Anne Arundel, Baltimore, Carroll, Frederick, Prince George's and 2 more | 24 hr |
| Jan 26, 12:35 PM EST | Winter Storm Watch | PBZ | 23 hr | |
| Jan 26, 3:07 PM EST | Winter Weather Advisory | LWX | Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 5 more | 45 hr |
| Jan 26, 9:44 PM EST | Winter Weather Advisory | AKQ | Dorchester, Somerset, Wicomico, Worcester | 31 hr |
| Jan 27, 3:18 AM EST | Winter Storm Warning | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 40 hr |
| Jan 27, 3:18 AM EST | Winter Weather Advisory | PHI | Caroline, Kent, Queen Anne's, Talbot | 27 hr |
| Jan 27, 3:45 AM EST | Winter Storm Warning | LWX | Allegany, Anne Arundel, Baltimore, Carroll, Frederick, Prince George's and 2 more | 36 hr |
| Jan 27, 7:02 AM EST | Winter Weather Advisory | PBZ | 5 hr | |
| Jan 27, 11:48 AM EST | Winter Storm Warning | PBZ | 31 hr | |
| Jan 27, 10:36 PM EST | Winter Storm Warning | AKQ | Dorchester | 6 hr |
| Jan 28, 12:31 AM EST | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Caroline, Carroll, Cecil and 11 more | 5 hr |
| Jan 28, 10:01 AM EST | Dense Fog Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 7 hr |
| Jan 30, 3:46 AM EST | Winter Weather Advisory | LWX | Allegany | 14 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 | |
| Mesoscale Discussion | 1 |
| Flooding | |
| Areal Flood Advisory | 1 |
| Winter | |
| Winter Storm Warning | 6 |
| Winter Storm Watch | 4 |
| Winter Weather Advisory | 19 |
| Cold | |
| Wind Chill Advisory | 5 |
| Wind and dust | |
| Wind Advisory | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 3 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Allegany County17
- Washington County10
- Baltimore County9
- Carroll County9
- Frederick County9
- City of Baltimore7
- Cecil County7
- Kent County7
- Queen Anne's County5
- Anne Arundel County5
- Prince George's County5
- Dorchester County4
- Somerset County4
- Wicomico County4
- Worcester County4
- Caroline County4
- Talbot County4
- Calvert County1
- Charles County1
- Saint Mary's County1
- Garrett County1
- Harford County1
- Howard 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.