Alert archive / Maryland / 2020
Weather alerts in Maryland, March 2020
37 weather alerts in March 2020, 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 2020. Tap one for its archive.
- Alerts
- 37
- Warnings
- 7
- Watches
- 0
- Advisories
- 16
- Busiest day
- March 4, 202010 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 3, 1:22 PM EST | Mesoscale Discussion | SPC | Allegany, Garrett | 113 min |
| Mar 3, 4:27 PM EST | Mesoscale Discussion | SPC | Allegany, Carroll, Frederick, Garrett, Washington | 2 hr |
| Mar 3, 6:50 PM EST | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Caroline, Carroll, Cecil, Harford and 6 more | 2 hr |
| Mar 3, 8:09 PM EST | Special Weather Statement | PHI | Cecil | 51 min |
| Mar 3, 9:09 PM EST | Severe Thunderstorm Warning | PHI | Cecil | 51 min |
| Mar 3, 9:20 PM EST | Special Weather Statement | PBZ | Garrett | 25 min |
| Mar 3, 10:03 PM EST | Severe Thunderstorm Warning | LWX | Allegany, Washington | 27 min |
| Mar 3, 10:26 PM EST | Severe Thunderstorm Warning | LWX | Allegany, Frederick, Washington | 34 min |
| Mar 3, 10:39 PM EST | Special Weather Statement | AKQ | Wicomico | 51 min |
| Mar 3, 10:52 PM EST | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 12 more | 113 min |
| Mar 3, 10:54 PM EST | Severe Thunderstorm Warning | LWX | Carroll, Frederick, Montgomery, Washington | 36 min |
| Mar 3, 11:48 PM EST | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Montgomery, Prince George's | 42 min |
| Mar 3, 11:49 PM EST | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Harford, Howard, Montgomery, Prince George's and 1 more | 41 min |
| Mar 6, 3:58 PM EST | Coastal Flood Statement | AKQ | Worcester | 16 hr |
| Mar 8, 3:56 PM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Harford | 8 hr |
| Mar 12, 8:28 PM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Saint Mary's | 15 hr |
| Mar 14, 1:30 PM EDT | Winter Weather Advisory | LWX | Allegany | 22 hr |
| Mar 14, 2:12 PM EDT | Winter Weather Advisory | PBZ | 21 hr | |
| Mar 20, 2:18 AM EDT | Dense Fog Advisory | LWX | Anne Arundel, Baltimore, Carroll, Harford, Howard, City of Baltimore | 7 hr |
| Mar 20, 2:32 AM EDT | Dense Fog Advisory | PHI | Cecil, Kent | 6 hr |
| Mar 20, 12:21 PM EDT | Special Weather Statement | PBZ | Garrett | 54 min |
| Mar 22, 3:06 AM EDT | High Surf Advisory | AKQ | Worcester | 41 hr |
| Mar 23, 8:35 AM EDT | Coastal Flood Statement | AKQ | Dorchester | 7 hr |
| Mar 25, 9:02 PM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Saint Mary's | 10 hr |
| Mar 26, 2:04 PM EDT | Coastal Flood Advisory | LWX | Anne Arundel | 7 hr |
| Mar 26, 10:00 PM EDT | Coastal Flood Advisory | LWX | Harford | 4 hr |
| Mar 26, 10:03 PM EDT | Coastal Flood Statement | AKQ | Dorchester, Somerset, Wicomico | 8 hr |
| Mar 27, 3:31 AM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Baltimore, Calvert, Charles, Harford, Saint Mary's and 1 more | 10 hr |
| Mar 27, 6:05 AM EDT | Coastal Flood Statement | AKQ | Dorchester | 115 min |
| Mar 28, 11:26 AM EDT | Special Weather Statement | PHI | Kent | 34 min |
| Mar 28, 5:38 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 37 min |
| Mar 28, 5:51 PM EDT | Mesoscale Discussion | SPC | Allegany, Garrett | 84 min |
| Mar 29, 3:32 AM EDT | Dense Fog Advisory | LWX | Washington | 7 hr |
| Mar 29, 1:58 PM EDT | Wind Advisory | PBZ | 7 hr | |
| Mar 29, 11:16 PM EDT | Dense Fog Advisory | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 6 more | 5 hr |
| Mar 30, 3:44 AM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Saint Mary's | 9 hr |
| Mar 31, 5:05 AM EDT | Coastal Flood Advisory | AKQ | Dorchester, Somerset, Wicomico, Worcester | 53 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 | 7 |
| Mesoscale Discussion | 5 |
| Special Weather Statement | 5 |
| Winter | |
| Winter Weather Advisory | 2 |
| Wind and dust | |
| Wind Advisory | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 4 |
| Coast and beach | |
| Coastal Flood Advisory | 8 |
| High Surf Advisory | 1 |
| Coastal Flood Statement | 4 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Anne Arundel County12
- Washington County7
- Harford County7
- Allegany County6
- Garrett County6
- Carroll County6
- Baltimore County6
- Montgomery County6
- City of Baltimore6
- Frederick County5
- Cecil County5
- Howard County5
- Prince George's County5
- Dorchester County5
- Saint Mary's County5
- Kent County4
- Calvert County4
- Wicomico County3
- Charles County3
- Worcester County3
- Caroline County2
- Queen Anne's County2
- Somerset County2
- Talbot County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20192021
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.