Winter Weather Advisories in Maryland
887 winter weather advisories since 1986. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of winter weather advisories reaches back to 2005.
Winter Weather Advisories by county
Each county as a circle sized by its count since 1986. Tap one for its archive.
- Winter Weather Advisories
- 887
- Busiest year
- 201374 winter weather advisories
- Average year
- 40over 22 years on file
Over time
By year
Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.
By month of the year
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Allegany County300
- Baltimore County197
- Carroll County179
- Frederick County178
- Washington County156
- City of Baltimore153
- Cecil County131
- Prince George's County125
- Anne Arundel County124
- Harford County105
- Montgomery County104
- Howard County102
- Charles County101
- Kent County100
- Queen Anne's County92
- Caroline County88
- Talbot County86
- Calvert County83
- Saint Mary's County76
- Dorchester County70
- Wicomico County69
- Worcester County60
- Somerset County58
- Garrett County21
The latest winter weather advisories
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 16, 2:31 AM EDT | Winter Weather Advisory | LWX | Allegany, Garrett | 38 hr |
| Mar 2, 2:26 AM EST | Winter Weather Advisory | LWX | Allegany, Baltimore, Carroll, Cecil, Frederick, Garrett and 5 more | 35 hr |
| Feb 24, 2:53 AM EST | Winter Weather Advisory | LWX | Garrett | 34 hr |
| Feb 23, 3:29 AM EST | Winter Weather Advisory | AKQ | Dorchester, Somerset, Wicomico, Worcester | 10 hr |
| Feb 21, 2:46 PM EST | Winter Weather Advisory | LWX | Allegany, Anne Arundel, Baltimore, Charles, Howard, Montgomery and 2 more | 51 hr |
| Feb 10, 12:59 PM EST | Winter Weather Advisory | LWX | Garrett | 23 hr |
| Feb 5, 1:17 PM EST | Winter Weather Advisory | LWX | Allegany | 42 hr |
| Feb 2, 12:34 PM EST | Winter Weather Advisory | LWX | Garrett | 33 hr |
| Jan 30, 2:01 PM EST | Winter Weather Advisory | AKQ | Dorchester, Somerset, Wicomico, Worcester | 35 hr |
| Jan 26, 8:57 AM EST | Winter Weather Advisory | LWX | Garrett | 14 hr |
| Jan 23, 2:16 PM EST | Winter Weather Advisory | AKQ | Dorchester | 70 hr |
| Jan 21, 11:21 AM EST | Winter Weather Advisory | LWX | Allegany, Garrett | 23 hr |
Nearby
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.