Alert archive / Maryland / 2015
Weather alerts in Maryland, April 2015
59 weather alerts in April 2015, 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 April 2015. Tap one for its archive.
- Alerts
- 59
- Warnings
- 23
- Watches
- 9
- Advisories
- 12
- Busiest day
- April 21, 201519 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 |
|---|---|---|---|---|
| Apr 2, 2:51 PM EDT | Flood Watch | PBZ | 30 hr | |
| Apr 9, 4:08 AM EDT | Flash Flood Watch | PBZ | 32 hr | |
| Apr 9, 4:29 PM EDT | Severe Thunderstorm Watch | SPC | Garrett | 6 hr |
| Apr 9, 4:52 PM EDT | Special Weather Statement | PBZ | Garrett | 23 min |
| Apr 9, 6:24 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 51 min |
| Apr 9, 6:41 PM EDT | Tornado Warning | PBZ | Garrett | 31 min |
| Apr 10, 3:26 AM EDT | Coastal Flood Advisory | LWX | Anne Arundel | 10 hr |
| Apr 10, 2:36 PM EDT | Mesoscale Discussion | SPC | Dorchester, Saint Mary's, Somerset, Wicomico, Worcester | 54 min |
| Apr 10, 6:12 PM EDT | Severe Thunderstorm Watch | SPC | Somerset, Wicomico, Worcester | 4 hr |
| Apr 10, 7:12 PM EDT | Severe Thunderstorm Warning | AKQ | Somerset, Worcester | 41 min |
| Apr 11, 1:54 PM EDT | Frost Advisory | LWX | Baltimore, Carroll, Frederick, Harford, Howard, Montgomery and 1 more | 19 hr |
| Apr 18, 3:55 AM EDT | Dense Fog Advisory | AKQ | Dorchester, Wicomico, Worcester | 4 hr |
| Apr 19, 4:10 AM EDT | Flood Watch | LWX | Anne Arundel, Baltimore, Carroll, Frederick, Harford, Howard and 3 more | 26 hr |
| Apr 20, 1:17 AM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Baltimore, Harford, City of Baltimore | 12 hr |
| Apr 20, 7:01 AM EDT | Areal Flood Warning | LWX | Saint Mary's | 9 hr |
| Apr 20, 1:54 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Carroll, Charles, Frederick and 6 more | 3 hr |
| Apr 20, 3:08 PM EDT | Tornado Watch | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Caroline, Carroll and 13 more | 9 hr |
| Apr 20, 3:16 PM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Baltimore, City of Baltimore | 7 hr |
| Apr 20, 5:01 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Cecil and 12 more | 119 min |
| Apr 20, 5:22 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 23 min |
| Apr 20, 6:59 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 31 min |
| Apr 20, 7:09 PM EDT | Severe Thunderstorm Warning | LWX | Allegany, Washington | 36 min |
| Apr 20, 7:16 PM EDT | Severe Thunderstorm Warning | LWX | Allegany, Washington | 59 min |
| Apr 20, 7:20 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Charles, Prince George's, Saint Mary's | 25 min |
| Apr 20, 7:42 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Montgomery, Prince George's | 48 min |
| Apr 20, 7:43 PM EDT | Special Weather Statement | PHI | Talbot | 47 min |
| Apr 20, 8:02 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Howard, Montgomery, Prince George's | 28 min |
| Apr 20, 8:11 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 49 min |
| Apr 20, 8:16 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Charles, Prince George's | 44 min |
| Apr 20, 8:17 PM EDT | Special Weather Statement | PHI | Talbot | 58 min |
| Apr 20, 8:20 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Howard, Montgomery, Prince George's, City of Baltimore | 25 min |
| Apr 20, 8:24 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 36 min |
| Apr 20, 8:35 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Charles, Prince George's, Saint Mary's | 35 min |
| Apr 20, 8:52 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Harford, Howard, Prince George's, City of Baltimore | 38 min |
| Apr 20, 8:52 PM EDT | Special Weather Statement | PHI | Cecil, Kent, Queen Anne's | 53 min |
| Apr 20, 9:10 PM EDT | Special Weather Statement | PHI | Queen Anne's | 80 min |
| Apr 20, 9:17 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 7 more | 88 min |
| Apr 20, 9:28 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Charles, Prince George's, Saint Mary's | 47 min |
| Apr 20, 9:40 PM EDT | Special Weather Statement | PHI | Cecil, Kent, Queen Anne's | 35 min |
| Apr 20, 10:18 PM EDT | Areal Flood Advisory | PHI | Cecil, Kent, Queen Anne's, Talbot | 3 hr |
| Apr 20, 10:24 PM EDT | Special Weather Statement | PHI | Caroline | 81 min |
| Apr 20, 10:46 PM EDT | Coastal Flood Statement | AKQ | Dorchester, Somerset, Wicomico | 7 hr |
| Apr 20, 11:08 PM EDT | Areal Flood Advisory | PHI | Caroline | 112 min |
| Apr 21, 1:16 AM EDT | Areal Flood Advisory | PHI | Cecil, Kent, Queen Anne's, Talbot | 3 hr |
| Apr 21, 4:53 AM EDT | Coastal Flood Advisory | LWX | Anne Arundel | 5 hr |
| Apr 22, 4:10 AM EDT | Wind Advisory | LWX | Allegany, Carroll, Frederick, Washington | 15 hr |
| Apr 22, 12:19 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 25 min |
| Apr 22, 12:32 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 12 more | 118 min |
| Apr 22, 1:33 PM EDT | Special Weather Statement | PHI | Cecil, Queen Anne's | 57 min |
| Apr 22, 2:22 PM EDT | Special Weather Statement | PHI | Caroline, Cecil, Queen Anne's | 113 min |
| Apr 23, 4:04 AM EDT | Freeze Watch | PHI | Cecil | 35 hr |
| Apr 23, 4:05 AM EDT | Freeze Watch | LWX | Baltimore, Carroll, Frederick, Harford, Washington | 10 hr |
| Apr 23, 2:07 PM EDT | Freeze Warning | LWX | Baltimore, Carroll, Frederick, Harford, Howard, Montgomery and 1 more | 17 hr |
| Apr 24, 3:23 AM EDT | Freeze Watch | LWX | Baltimore, Carroll, Frederick, Harford, Howard, Montgomery and 1 more | 11 hr |
| Apr 24, 2:35 PM EDT | Frost Advisory | LWX | Baltimore, Howard, Montgomery, City of Baltimore | 18 hr |
| Apr 24, 2:35 PM EDT | Freeze Warning | LWX | Baltimore, Carroll, Frederick, Harford, Washington | 18 hr |
| Apr 24, 3:28 PM EDT | Frost Advisory | PHI | Caroline, Kent, Queen Anne's, Talbot | 17 hr |
| Apr 24, 3:28 PM EDT | Freeze Warning | PHI | Cecil | 17 hr |
| Apr 30, 2:27 PM EDT | Areal Flood Warning | LWX | Washington | 2 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 | 17 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 2 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 5 |
| Special Weather Statement | 9 |
| Flooding | |
| Areal Flood Warning | 2 |
| Flash Flood Watch | 1 |
| Flood Watch | 2 |
| Areal Flood Advisory | 3 |
| Cold | |
| Freeze Warning | 3 |
| Freeze Watch | 3 |
| Frost Advisory | 3 |
| Wind and dust | |
| Wind Advisory | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
| Coast and beach | |
| Coastal Flood Advisory | 4 |
| Coastal Flood Statement | 1 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Baltimore County16
- Anne Arundel County15
- Washington County15
- Prince George's County14
- Harford County13
- Carroll County12
- Frederick County12
- Howard County12
- Montgomery County12
- Cecil County12
- Queen Anne's County12
- City of Baltimore11
- Charles County11
- Kent County9
- Talbot County9
- Saint Mary's County8
- Calvert County8
- Allegany County7
- Caroline County7
- Garrett County4
- Dorchester County4
- Somerset County4
- Wicomico County4
- Worcester County4
Nearby
Alerts in force nowTornadoes on recordThe radar archive20142016
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.