Alert archive / Maryland / 2018
Weather alerts in Maryland, April 2018
78 weather alerts in April 2018, 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 2018. Tap one for its archive.
- Alerts
- 78
- Warnings
- 27
- Watches
- 11
- Advisories
- 24
- Busiest day
- April 16, 201829 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 1, 3:16 AM EDT | Winter Storm Watch | PBZ | 10 hr | |
| Apr 1, 4:01 AM EDT | Winter Weather Advisory | LWX | Allegany, Baltimore, Carroll, Frederick, Harford, Howard and 2 more | 27 hr |
| Apr 1, 4:08 AM EDT | Winter Weather Advisory | PHI | Cecil | 33 hr |
| Apr 1, 1:32 PM EDT | Winter Storm Warning | PBZ | 17 hr | |
| Apr 1, 1:44 PM EDT | Winter Storm Warning | LWX | Allegany | 17 hr |
| Apr 2, 3:47 AM EDT | Mesoscale Discussion | SPC | Washington | 6 hr |
| Apr 3, 1:58 PM EDT | Wind Advisory | PBZ | 30 hr | |
| Apr 3, 3:32 PM EDT | Wind Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 28 hr |
| Apr 3, 5:33 PM EDT | Wind Advisory | LWX | Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 8 more | 25 hr |
| Apr 3, 6:38 PM EDT | Mesoscale Discussion | SPC | Allegany, Garrett | 2 hr |
| Apr 4, 12:01 AM EDT | Dense Fog Advisory | PHI | Cecil | 10 hr |
| Apr 4, 7:44 AM EDT | Dense Fog Advisory | LWX | Baltimore, Harford, City of Baltimore | 2 hr |
| Apr 4, 1:27 PM EDT | Mesoscale Discussion | SPC | Calvert, Caroline, Dorchester, Saint Mary's, Somerset, Talbot and 2 more | 3 hr |
| Apr 11, 1:34 PM EDT | Fire Weather Watch | LWX | Allegany, Anne Arundel, Baltimore, Calvert, Charles, Howard and 5 more | 14 hr |
| Apr 12, 3:42 AM EDT | Red Flag Warning | LWX | Allegany, Charles, Howard, Montgomery, Prince George's, Washington | 16 hr |
| Apr 12, 8:44 AM EDT | Red Flag Warning | PBZ | 11 hr | |
| Apr 14, 2:41 PM EDT | Flash Flood Watch | PBZ | 37 hr | |
| Apr 15, 6:08 AM EDT | Coastal Flood Advisory | PHI | Caroline, Queen Anne's, Talbot | 39 hr |
| Apr 15, 10:29 PM EDT | Areal Flood Warning | PBZ | Garrett | 18 hr |
| Apr 15, 11:31 PM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Baltimore, Saint Mary's, City of Baltimore | 4 hr |
| Apr 16, 2:12 AM EDT | Severe Thunderstorm Warning | LWX | Charles | 17 min |
| Apr 16, 2:34 AM EDT | Severe Thunderstorm Warning | LWX | Calvert, Charles, Saint Mary's | 26 min |
| Apr 16, 2:37 AM EDT | Tornado Warning | LWX | Saint Mary's | 23 min |
| Apr 16, 2:41 AM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Howard, Montgomery, Prince George's | 16 min |
| Apr 16, 3:01 AM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Baltimore, Calvert, Charles, Harford, Saint Mary's and 1 more | 23 hr |
| Apr 16, 3:45 AM EDT | Special Weather Statement | PHI | Kent, Queen Anne's, Talbot | 30 min |
| Apr 16, 3:54 AM EDT | Special Weather Statement | AKQ | Dorchester, Wicomico | 51 min |
| Apr 16, 3:56 AM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent, Queen Anne's, Talbot | 24 min |
| Apr 16, 4:23 AM EDT | Special Weather Statement | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 37 min |
| Apr 16, 4:29 AM EDT | Freeze Watch | LWX | Carroll, Frederick, Washington | 12 hr |
| Apr 16, 4:37 AM EDT | Flash Flood Warning | LWX | Montgomery | 2 hr |
| Apr 16, 4:38 AM EDT | Areal Flood Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 4 hr |
| Apr 16, 4:44 AM EDT | Special Weather Statement | AKQ | Dorchester, Wicomico, Worcester | 46 min |
| Apr 16, 4:45 AM EDT | Coastal Flood Advisory | AKQ | Dorchester, Somerset | 25 hr |
| Apr 16, 4:55 AM EDT | Special Weather Statement | PHI | Caroline, Cecil | 50 min |
| Apr 16, 5:34 AM EDT | Areal Flood Advisory | PHI | Cecil, Kent | 4 hr |
| Apr 16, 5:39 AM EDT | Special Weather Statement | AKQ | Wicomico, Worcester | 51 min |
| Apr 16, 6:20 AM EDT | Areal Flood Warning | LWX | Anne Arundel, Baltimore, Carroll, Harford, Howard, Prince George's and 1 more | 6 hr |
| Apr 16, 6:35 AM EDT | Special Weather Statement | AKQ | Worcester | 40 min |
| Apr 16, 6:38 AM EDT | Areal Flood Warning | LWX | Montgomery | 6 hr |
| Apr 16, 7:34 AM EDT | Coastal Flood Warning | LWX | Anne Arundel | 3 hr |
| Apr 16, 7:34 AM EDT | Coastal Flood Advisory | LWX | Anne Arundel | 8 hr |
| Apr 16, 12:04 PM EDT | Special Weather Statement | PHI | Cecil | 26 min |
| Apr 16, 12:42 PM EDT | Areal Flood Warning | LWX | Montgomery | 105 min |
| Apr 16, 1:09 PM EDT | Coastal Flood Warning | LWX | Anne Arundel, Saint Mary's | 6 hr |
| Apr 16, 1:09 PM EDT | Coastal Flood Advisory | LWX | Saint Mary's | 17 hr |
| Apr 16, 1:18 PM EDT | Coastal Flood Advisory | PHI | Cecil, Kent | 13 hr |
| Apr 16, 10:17 PM EDT | River Flood Warning | LWX | Washington | 32 hr |
| Apr 16, 10:27 PM EDT | River Flood Watch | LWX | Frederick | 11 hr |
| Apr 17, 4:08 AM EDT | Freeze Watch | LWX | Baltimore, Carroll, Frederick, Harford, Howard, Montgomery and 1 more | 9 hr |
| Apr 17, 1:24 PM EDT | Freeze Warning | LWX | Baltimore, Carroll, Frederick, Harford, Howard, Montgomery and 2 more | 19 hr |
| Apr 17, 2:36 PM EDT | Freeze Warning | PHI | Cecil | 17 hr |
| Apr 18, 6:17 AM EDT | River Flood Warning | LWX | Montgomery | 8 hr |
| Apr 18, 2:22 PM EDT | Wind Advisory | LWX | Allegany | 27 hr |
| Apr 19, 4:27 AM EDT | Freeze Watch | LWX | Baltimore, Carroll, Frederick, Harford, Howard, Montgomery and 1 more | 10 hr |
| Apr 19, 2:22 PM EDT | Freeze Warning | LWX | Baltimore, Carroll, Frederick, Harford, Howard, Montgomery and 1 more | 18 hr |
| Apr 19, 3:04 PM EDT | Freeze Warning | PHI | Cecil | 17 hr |
| Apr 20, 4:16 AM EDT | Freeze Watch | LWX | Baltimore, Carroll, Frederick, Harford, Washington | 10 hr |
| Apr 20, 2:28 PM EDT | Freeze Warning | LWX | Baltimore, Carroll, Frederick, Harford, Howard, Montgomery and 1 more | 19 hr |
| Apr 20, 3:35 PM EDT | Frost Advisory | PHI | Caroline, Kent, Queen Anne's | 16 hr |
| Apr 20, 3:35 PM EDT | Freeze Warning | PHI | Cecil | 16 hr |
| Apr 24, 9:34 PM EDT | Coastal Flood Advisory | LWX | Saint Mary's | 16 hr |
| Apr 25, 2:18 PM EDT | Coastal Flood Advisory | LWX | Saint Mary's | 12 hr |
| Apr 25, 7:28 PM EDT | Areal Flood Advisory | PHI | Caroline | 5 hr |
| Apr 25, 9:53 PM EDT | Special Weather Statement | AKQ | Wicomico, Worcester | 37 min |
| Apr 25, 10:34 PM EDT | Special Weather Statement | AKQ | Worcester | 41 min |
| Apr 27, 3:34 AM EDT | Special Weather Statement | AKQ | Dorchester | 41 min |
| Apr 28, 5:16 AM EDT | Dense Fog Advisory | PHI | Cecil, Kent | 4 hr |
| Apr 28, 5:21 AM EDT | Dense Fog Advisory | LWX | Baltimore, Carroll, Frederick, Harford, Howard, Montgomery and 1 more | 5 hr |
| Apr 28, 8:12 PM EDT | Special Weather Statement | PHI | Cecil | 33 min |
| Apr 28, 9:35 PM EDT | Special Weather Statement | PHI | Queen Anne's | 25 min |
| Apr 29, 3:15 PM EDT | Frost Advisory | LWX | Frederick, Montgomery, Washington | 17 hr |
| Apr 29, 3:18 PM EDT | Fire Weather Watch | LWX | Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 8 more | 12 hr |
| Apr 29, 3:32 PM EDT | Fire Weather Watch | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 12 hr |
| Apr 29, 4:06 PM EDT | Fire Weather Watch | AKQ | Dorchester, Somerset, Wicomico, Worcester | 13 hr |
| Apr 30, 3:31 AM EDT | Red Flag Warning | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 16 hr |
| Apr 30, 3:32 AM EDT | Red Flag Warning | LWX | Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 8 more | 16 hr |
| Apr 30, 5:01 AM EDT | Red Flag Warning | AKQ | Dorchester, Somerset, Wicomico, Worcester | 15 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 | 4 |
| Tornado Warning | 1 |
| Mesoscale Discussion | 3 |
| Special Weather Statement | 13 |
| Flooding | |
| Areal Flood Warning | 4 |
| Flash Flood Warning | 1 |
| River Flood Warning | 2 |
| Flash Flood Watch | 1 |
| River Flood Watch | 1 |
| Areal Flood Advisory | 3 |
| Winter | |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 2 |
| Cold | |
| Freeze Warning | 6 |
| Freeze Watch | 4 |
| Frost Advisory | 2 |
| Wind and dust | |
| Wind Advisory | 4 |
| Fire | |
| Red Flag Warning | 5 |
| Fire Weather Watch | 4 |
| Fog and smoke | |
| Dense Fog Advisory | 4 |
| Coast and beach | |
| Coastal Flood Warning | 2 |
| Coastal Flood Advisory | 9 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Montgomery County18
- Cecil County17
- Baltimore County16
- Washington County16
- Frederick County14
- Harford County14
- Howard County14
- Carroll County13
- Saint Mary's County13
- Kent County11
- Anne Arundel County11
- Caroline County10
- Queen Anne's County10
- City of Baltimore10
- Allegany County9
- Talbot County9
- Charles County8
- Worcester County8
- Calvert County7
- Prince George's County7
- Dorchester County7
- Wicomico County7
- Somerset County4
- Garrett County2
Nearby
Alerts in force nowTornadoes on recordThe radar archive20172019
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.