Alert archive / Maryland / 2021
Weather alerts in Maryland, December 2021
18 weather alerts in December 2021, 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 December 2021. Tap one for its archive.
- Alerts
- 18
- Warnings
- 1
- Watches
- 1
- Advisories
- 9
- Busiest day
- December 31, 20214 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 |
|---|---|---|---|---|
| Dec 1, 2:26 PM EST | High Wind Warning | LWX | Allegany | 29 hr |
| Dec 1, 2:26 PM EST | Wind Advisory | LWX | Allegany, Washington | 39 hr |
| Dec 6, 11:09 AM EST | Wind Advisory | LWX | Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Cecil and 7 more | 14 hr |
| Dec 10, 3:30 AM EST | High Wind Watch | LWX | Allegany, Frederick, Washington | 12 hr |
| Dec 10, 3:58 AM EST | Wind Advisory | PHI | Caroline, Kent, Queen Anne's, Talbot | 45 hr |
| Dec 10, 10:48 AM EST | Wind Advisory | LWX | Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Cecil and 9 more | 38 hr |
| Dec 11, 5:37 PM EST | Special Weather Statement | AKQ | Dorchester | 38 min |
| Dec 11, 6:25 PM EST | Special Weather Statement | AKQ | Somerset | 50 min |
| Dec 11, 7:29 PM EST | Mesoscale Discussion | SPC | Baltimore, Cecil, Harford, Kent, Queen Anne's, City of Baltimore | 3 hr |
| Dec 11, 9:57 PM EST | Special Weather Statement | AKQ | Dorchester | 48 min |
| Dec 11, 11:06 PM EST | Special Weather Statement | AKQ | Wicomico, Worcester | 54 min |
| Dec 23, 11:43 PM EST | Winter Weather Advisory | LWX | Allegany, Frederick, Washington | 3 hr |
| Dec 26, 12:21 PM EST | Winter Weather Advisory | LWX | Allegany | 27 hr |
| Dec 27, 6:58 AM EST | Mesoscale Discussion | SPC | Garrett | 5 hr |
| Dec 30, 10:18 PM EST | Dense Fog Advisory | LWX | Allegany, Anne Arundel, Baltimore, Carroll, Cecil, Frederick and 4 more | 14 hr |
| Dec 30, 11:51 PM EST | Dense Fog Advisory | AKQ | Dorchester, Somerset, Wicomico, Worcester | 12 hr |
| Dec 31, 4:20 AM EST | Coastal Flood Statement | AKQ | Dorchester | 8 hr |
| Dec 31, 2:21 PM EST | Coastal Flood Advisory | LWX | Anne Arundel | 5 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 | 2 |
| Special Weather Statement | 4 |
| Winter | |
| Winter Weather Advisory | 2 |
| Wind and dust | |
| High Wind Warning | 1 |
| High Wind Watch | 1 |
| Wind Advisory | 4 |
| Fog and smoke | |
| Dense Fog Advisory | 2 |
| Coast and beach | |
| Coastal Flood Advisory | 1 |
| Coastal Flood Statement | 1 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Allegany County8
- Washington County6
- Frederick County5
- Anne Arundel County4
- Baltimore County4
- Cecil County4
- Harford County4
- City of Baltimore4
- Dorchester County4
- Carroll County3
- Howard County3
- Calvert County2
- Montgomery County2
- Prince George's County2
- Kent County2
- Queen Anne's County2
- Somerset County2
- Wicomico County2
- Worcester County2
- Caroline County1
- Talbot County1
- Charles County1
- Saint Mary's County1
- Garrett County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
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.