Weather alerts in Maryland, 2009
791 weather alerts in 2009, 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 2009. Tap one for its archive.
- Alerts
- 791
- Warnings
- 328
- Watches
- 99
- Advisories
- 245
- Busiest month
- June158 alerts
- Busiest day
- June 9, 200939 alerts
Over time
By month
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 |
|---|---|---|---|---|
| Jan 5, 4:09 AM EST | Winter Storm Watch | LWX | Allegany, Baltimore, Carroll, Frederick, Washington, City of Baltimore | 11 hr |
| Jan 5, 2:57 PM EST | Winter Weather Advisory | LWX | Allegany, Baltimore, Carroll, Frederick, Washington | 45 hr |
| Jan 5, 3:50 PM EST | Winter Weather Advisory | PBZ | 36 hr | |
| Jan 5, 9:46 PM EST | Winter Storm Warning | LWX | Allegany, Washington | 38 hr |
| Jan 5, 9:46 PM EST | Winter Storm Warning | PBZ | 36 hr | |
| Jan 6, 4:39 AM EST | Winter Weather Advisory | PHI | Cecil, Kent | 23 hr |
| Jan 7, 12:24 AM EST | Dense Fog Advisory | AKQ | Dorchester, Somerset, Wicomico, Worcester | 7 hr |
| Jan 7, 8:21 AM EST | Areal Flood Advisory | PHI | Cecil, Kent, Queen Anne's | 8 hr |
| Jan 7, 2:55 PM EST | Winter Weather Advisory | LWX | Allegany | 38 hr |
| Jan 7, 3:01 PM EST | Wind Advisory | LWX | Allegany | 13 hr |
| Jan 7, 3:31 PM EST | Winter Weather Advisory | PBZ | 37 hr | |
| Jan 9, 12:32 PM EST | Winter Weather Advisory | PBZ | 34 hr | |
| Jan 9, 3:27 PM EST | Winter Weather Advisory | PHI | Cecil | 37 hr |
| Jan 10, 1:17 PM EST | Winter Weather Advisory | LWX | Allegany, Baltimore, Carroll, Frederick, Washington | 15 hr |
| Jan 11, 7:40 PM EST | Winter Weather Advisory | LWX | Allegany | 14 hr |
| Jan 13, 10:42 AM EST | Winter Weather Advisory | LWX | Allegany | 17 hr |
| Jan 14, 3:46 AM EST | Winter Weather Advisory | PBZ | 38 hr | |
| Jan 14, 11:06 AM EST | Winter Weather Advisory | LWX | Allegany | 28 hr |
| Jan 14, 2:36 PM EST | Wind Chill Advisory | PBZ | 69 hr | |
| Jan 14, 2:54 PM EST | Wind Chill Advisory | LWX | Allegany | 67 hr |
| Jan 15, 3:05 PM EST | Wind Chill Advisory | LWX | Baltimore, Carroll, Frederick, Washington, City of Baltimore | 25 hr |
| Jan 15, 3:48 PM EST | Wind Chill Advisory | AKQ | Dorchester, Somerset, Wicomico, Worcester | 18 hr |
| Jan 17, 2:36 PM EST | Winter Weather Advisory | PBZ | 45 hr | |
| Jan 18, 11:07 AM EST | Winter Weather Advisory | LWX | Allegany, Anne Arundel, Baltimore, Carroll, Frederick, Prince George's and 2 more | 33 hr |
| Jan 19, 5:00 AM EST | Dense Fog Advisory | AKQ | Somerset, Wicomico, Worcester | 5 hr |
| Jan 20, 2:45 PM EST | Wind Chill Advisory | LWX | Allegany | 18 hr |
| Jan 26, 2:42 AM EST | Winter Storm Watch | PHI | Cecil, Kent | 25 hr |
| Jan 26, 3:54 AM EST | Winter Storm Watch | LWX | Allegany, Anne Arundel, Baltimore, Carroll, Frederick, Prince George's and 2 more | 24 hr |
| Jan 26, 12:35 PM EST | Winter Storm Watch | PBZ | 23 hr | |
| Jan 26, 3:07 PM EST | Winter Weather Advisory | LWX | Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 5 more | 45 hr |
| Jan 26, 9:44 PM EST | Winter Weather Advisory | AKQ | Dorchester, Somerset, Wicomico, Worcester | 31 hr |
| Jan 27, 3:18 AM EST | Winter Storm Warning | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 40 hr |
| Jan 27, 3:18 AM EST | Winter Weather Advisory | PHI | Caroline, Kent, Queen Anne's, Talbot | 27 hr |
| Jan 27, 3:45 AM EST | Winter Storm Warning | LWX | Allegany, Anne Arundel, Baltimore, Carroll, Frederick, Prince George's and 2 more | 36 hr |
| Jan 27, 7:02 AM EST | Winter Weather Advisory | PBZ | 5 hr | |
| Jan 27, 11:48 AM EST | Winter Storm Warning | PBZ | 31 hr | |
| Jan 27, 10:36 PM EST | Winter Storm Warning | AKQ | Dorchester | 6 hr |
| Jan 28, 12:31 AM EST | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Caroline, Carroll, Cecil and 11 more | 5 hr |
| Jan 28, 10:01 AM EST | Dense Fog Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 7 hr |
| Jan 30, 3:46 AM EST | Winter Weather Advisory | LWX | Allegany | 14 hr |
| Feb 2, 10:44 AM EST | Winter Weather Advisory | PBZ | 8 hr | |
| Feb 2, 10:49 AM EST | Winter Weather Advisory | LWX | Allegany, Washington | 17 hr |
| Feb 2, 2:53 PM EST | Winter Weather Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 37 hr |
| Feb 2, 3:12 PM EST | Winter Storm Watch | LWX | Allegany | 13 hr |
| Feb 3, 3:30 AM EST | Winter Weather Advisory | PBZ | 42 hr | |
| Feb 3, 4:11 AM EST | Winter Weather Advisory | LWX | Allegany, Anne Arundel, Baltimore, Carroll, Frederick, Prince George's and 1 more | 30 hr |
| Feb 4, 12:35 AM EST | Winter Weather Advisory | LWX | Allegany | 27 hr |
| Feb 4, 2:18 PM EST | Wind Chill Advisory | PBZ | 20 hr | |
| Feb 4, 3:05 PM EST | Wind Chill Advisory | LWX | Allegany | 18 hr |
| Feb 10, 3:10 PM EST | High Wind Watch | PBZ | 20 hr | |
| Feb 10, 3:52 PM EST | High Wind Watch | LWX | Allegany, Washington | 24 hr |
| Feb 11, 3:46 AM EST | High Wind Warning | PBZ | 39 hr | |
| Feb 11, 2:50 PM EST | Wind Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 13 hr |
| Feb 11, 3:14 PM EST | Fire Weather Watch | AKQ | Dorchester, Somerset, Wicomico, Worcester | 14 hr |
| Feb 11, 3:27 PM EST | Wind Advisory | AKQ | Dorchester, Somerset, Wicomico, Worcester | 26 hr |
| Feb 11, 3:40 PM EST | High Wind Warning | LWX | Allegany, Baltimore, Carroll, Frederick, Washington, City of Baltimore | 28 hr |
| Feb 11, 3:40 PM EST | Wind Advisory | LWX | Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 5 more | 32 hr |
| Feb 11, 3:42 PM EST | Winter Weather Advisory | LWX | Allegany | 19 hr |
| Feb 11, 3:43 PM EST | Fire Weather Watch | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 4 more | 15 hr |
| Feb 11, 5:32 PM EST | Mesoscale Discussion | SPC | Allegany, Garrett, Washington | 88 min |
| Feb 11, 5:53 PM EST | Severe Thunderstorm Watch | SPC | Allegany, Garrett | 4 hr |
| Feb 11, 7:26 PM EST | Severe Thunderstorm Warning | PBZ | Garrett | 64 min |
| Feb 11, 7:31 PM EST | Severe Thunderstorm Warning | LWX | Allegany | 74 min |
| Feb 11, 8:00 PM EST | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Carroll, Charles, Frederick and 7 more | 60 min |
| Feb 11, 8:17 PM EST | Severe Thunderstorm Warning | LWX | Allegany | 58 min |
| Feb 11, 8:19 PM EST | Severe Thunderstorm Watch | SPC | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 7 more | 3 hr |
| Feb 11, 8:35 PM EST | Severe Thunderstorm Warning | LWX | Allegany, Washington | 70 min |
| Feb 11, 9:33 PM EST | Severe Thunderstorm Warning | LWX | Carroll, Frederick, Howard, Montgomery | 43 min |
| Feb 11, 10:07 PM EST | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Carroll, Harford, Howard, Montgomery and 2 more | 49 min |
| Feb 11, 10:14 PM EST | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 13 more | 61 min |
| Feb 12, 3:30 AM EST | High Wind Warning | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 16 hr |
| Feb 12, 5:17 AM EST | Red Flag Warning | AKQ | Dorchester, Somerset, Wicomico, Worcester | 16 hr |
| Feb 12, 6:49 AM EST | Red Flag Warning | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 4 more | 14 hr |
| Feb 12, 6:51 PM EST | Wind Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 5 hr |
| Feb 17, 9:46 PM EST | Winter Weather Advisory | PBZ | 17 hr | |
| Feb 17, 10:15 PM EST | Winter Weather Advisory | LWX | Allegany, Washington | 14 hr |
| Feb 18, 1:05 AM EST | Mesoscale Discussion | SPC | Allegany, Garrett | 4 hr |
| Feb 18, 2:55 PM EST | Winter Storm Warning | LWX | Allegany | 44 hr |
| Feb 18, 2:55 PM EST | Winter Weather Advisory | LWX | Allegany | 44 hr |
| Feb 18, 2:56 PM EST | Wind Advisory | LWX | Allegany | 37 hr |
| Feb 18, 4:07 PM EST | Winter Weather Advisory | PBZ | 17 hr | |
| Feb 19, 9:32 AM EST | Winter Storm Warning | PBZ | 24 hr | |
| Feb 19, 9:17 PM EST | Wind Chill Advisory | LWX | Allegany, Washington | 12 hr |
| Feb 21, 2:47 AM EST | Winter Storm Watch | LWX | Allegany | 13 hr |
| Feb 21, 3:08 PM EST | Winter Weather Advisory | PBZ | 46 hr | |
| Feb 21, 3:26 PM EST | Winter Weather Advisory | LWX | Allegany | 48 hr |
| Feb 22, 9:18 PM EST | Winter Storm Warning | PBZ | 16 hr | |
| Feb 28, 3:58 AM EST | Winter Storm Watch | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 3 more | 24 hr |
| Feb 28, 4:10 AM EST | Winter Storm Watch | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 23 hr |
| Mar 1, 3:30 AM EST | Winter Storm Warning | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 37 hr |
| Mar 1, 4:06 AM EST | Winter Storm Warning | AKQ | Dorchester, Somerset, Wicomico, Worcester | 31 hr |
| Mar 1, 4:11 AM EST | Winter Storm Warning | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 3 more | 34 hr |
| Mar 1, 4:11 AM EST | Winter Weather Advisory | LWX | Frederick, Washington | 31 hr |
| Mar 1, 3:44 PM EST | Winter Weather Advisory | AKQ | Worcester | 19 hr |
| Mar 1, 5:01 PM EST | Mesoscale Discussion | SPC | Anne Arundel, Calvert, Caroline, Cecil, Charles, Dorchester and 6 more | 2 hr |
| Mar 1, 9:09 PM EST | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Cecil, Dorchester and 6 more | 4 hr |
| Mar 2, 5:38 AM EST | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Cecil, Harford and 5 more | 3 hr |
| Mar 2, 2:27 PM EST | Wind Chill Advisory | PBZ | 13 hr | |
| Mar 2, 3:03 PM EST | Wind Chill Advisory | LWX | Allegany, Anne Arundel, Baltimore, Carroll, Frederick, Prince George's and 2 more | 18 hr |
| Mar 8, 3:04 PM EDT | Wind Advisory | LWX | Allegany, Baltimore, Carroll, Frederick, Washington | 23 hr |
| Mar 9, 4:12 AM EDT | Wind Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 12 hr |
| Mar 17, 6:59 AM EDT | Dense Fog Advisory | PBZ | 5 hr | |
| Mar 18, 6:19 AM EDT | Dense Fog Advisory | LWX | Anne Arundel, Baltimore, Calvert, Charles, Prince George's, Saint Mary's and 1 more | 4 hr |
| Mar 23, 4:23 AM EDT | Red Flag Warning | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 19 hr |
| Mar 27, 1:51 AM EDT | Dense Fog Advisory | LWX | Baltimore, Carroll, Frederick, Washington | 7 hr |
| Mar 27, 5:26 AM EDT | Dense Fog Advisory | PBZ | 6 hr | |
| Mar 29, 1:49 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Carroll, Cecil, Frederick, Harford and 5 more | 116 min |
| Mar 29, 2:31 PM EDT | Wind Advisory | LWX | Allegany | 20 hr |
| Mar 29, 4:20 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 22 min |
| Mar 29, 5:31 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 29 min |
| Mar 29, 5:45 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Harford | 25 min |
| Mar 29, 6:11 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 64 min |
| Apr 2, 3:35 AM EDT | Dense Fog Advisory | LWX | Anne Arundel, Baltimore, Carroll, Charles, Frederick, Prince George's and 1 more | 6 hr |
| Apr 2, 5:13 AM EDT | Dense Fog Advisory | PHI | Cecil | 4 hr |
| Apr 3, 4:32 AM EDT | Wind Advisory | LWX | Allegany, Baltimore, Carroll, Frederick, Washington, City of Baltimore | 34 hr |
| Apr 3, 11:45 AM EDT | Wind Advisory | PBZ | 16 hr | |
| Apr 3, 3:08 PM EDT | Wind Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 29 hr |
| Apr 6, 10:45 AM EDT | Severe Thunderstorm Warning | AKQ | Wicomico, Worcester | 45 min |
| Apr 6, 2:47 PM EDT | Winter Weather Advisory | LWX | Allegany | 40 hr |
| Apr 6, 2:55 PM EDT | Winter Weather Advisory | PBZ | 38 hr | |
| Apr 16, 3:01 PM EDT | Frost Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 17 hr |
| Apr 16, 3:27 PM EDT | Frost Advisory | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 3 more | 16 hr |
| Apr 16, 3:46 PM EDT | Frost Advisory | AKQ | Dorchester, Somerset, Wicomico, Worcester | 16 hr |
| Apr 19, 2:36 PM EDT | Flood Watch | PHI | Cecil | 22 hr |
| Apr 20, 2:50 PM EDT | Tornado Watch | SPC | Calvert, Charles, Saint Mary's | 7 hr |
| Apr 20, 4:57 PM EDT | Mesoscale Discussion | SPC | Charles, Saint Mary's, Somerset | 93 min |
| Apr 20, 6:06 PM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Baltimore, Calvert, Saint Mary's, City of Baltimore | 10 hr |
| Apr 20, 6:42 PM EDT | Severe Thunderstorm Warning | AKQ | Somerset, Wicomico | 63 min |
| Apr 20, 6:58 PM EDT | Areal Flood Advisory | AKQ | Somerset, Wicomico, Worcester | 3 hr |
| Apr 20, 7:15 PM EDT | Mesoscale Discussion | SPC | Saint Mary's | 90 min |
| Apr 20, 8:40 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Saint Mary's | 33 min |
| Apr 20, 9:33 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Charles, Prince George's | 34 min |
| Apr 21, 6:30 AM EDT | Dense Fog Advisory | LWX | Allegany, Washington | 3 hr |
| Apr 21, 2:12 PM EDT | Mesoscale Discussion | SPC | Washington | 2 hr |
| Apr 21, 5:34 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick, Howard, Montgomery | 26 min |
| Apr 21, 6:22 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Prince George's | 38 min |
| Apr 21, 6:24 PM EDT | Severe Thunderstorm Warning | LWX | Howard, Montgomery | 36 min |
| Apr 21, 6:31 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 44 min |
| Apr 21, 6:49 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Saint Mary's | 41 min |
| Apr 21, 7:24 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 10 min |
| Apr 21, 7:31 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Talbot | 44 min |
| Apr 21, 7:38 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester, Somerset, Wicomico | 52 min |
| Apr 21, 7:51 PM EDT | Severe Thunderstorm Warning | PHI | Caroline | 39 min |
| Apr 22, 4:30 PM EDT | Severe Thunderstorm Warning | AKQ | Worcester | 34 min |
| Apr 23, 4:00 AM EDT | Frost Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 28 hr |
| Apr 23, 2:33 PM EDT | Frost Advisory | LWX | Baltimore, Carroll, Frederick | 17 hr |
| Apr 23, 3:22 PM EDT | Frost Advisory | AKQ | Dorchester, Somerset, Wicomico, Worcester | 17 hr |
| Apr 25, 7:47 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, City of Baltimore | 47 min |
| Apr 26, 2:06 AM EDT | Severe Thunderstorm Warning | AKQ | Somerset, Wicomico, Worcester | 54 min |
| Apr 28, 10:34 AM EDT | Red Flag Warning | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 9 hr |
| May 1, 1:03 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Calvert, Caroline, Cecil, Charles, Dorchester and 7 more | 117 min |
| May 4, 3:10 AM EDT | Flood Watch | PBZ | 16 hr | |
| May 4, 8:32 AM EDT | Areal Flood Warning | PBZ | Garrett | 12 hr |
| May 4, 8:51 AM EDT | Flood Watch | LWX | Allegany, Washington | 4 hr |
| May 4, 11:05 AM EDT | Areal Flood Warning | LWX | Allegany | 6 hr |
| May 4, 2:29 PM EDT | Severe Thunderstorm Warning | AKQ | Worcester | 46 min |
| May 4, 10:00 PM EDT | River Flood Warning | LWX | Allegany | 8 hr |
| May 5, 3:54 AM EDT | River Flood Warning | LWX | Allegany | 14 hr |
| May 5, 2:17 PM EDT | River Flood Warning | LWX | Frederick | 26 hr |
| May 5, 3:23 PM EDT | Flood Watch | LWX | Allegany, Frederick, Washington | 37 hr |
| May 5, 3:26 PM EDT | Flood Watch | PBZ | 30 hr | |
| May 6, 3:11 PM EDT | Coastal Flood Advisory | LWX | Prince George's | 7 hr |
| May 6, 8:26 PM EDT | Tornado Watch | SPC | Calvert, Dorchester, Saint Mary's, Somerset, Wicomico, Worcester | 8 hr |
| May 6, 10:50 PM EDT | Mesoscale Discussion | SPC | Dorchester, Saint Mary's, Somerset | 55 min |
| May 6, 11:03 PM EDT | Severe Thunderstorm Warning | AKQ | Wicomico | 24 min |
| May 7, 12:10 AM EDT | Mesoscale Discussion | SPC | Anne Arundel, Calvert, Caroline, Cecil, Charles, Dorchester and 6 more | 95 min |
| May 7, 12:14 AM EDT | Areal Flood Warning | LWX | Anne Arundel | 4 hr |
| May 7, 12:28 AM EDT | Areal Flood Warning | LWX | City of Baltimore | 4 hr |
| May 7, 1:01 AM EDT | Flash Flood Warning | LWX | Baltimore | 3 hr |
| May 7, 1:32 AM EDT | Areal Flood Advisory | PHI | Cecil | 3 hr |
| May 7, 8:36 AM EDT | Coastal Flood Advisory | LWX | Prince George's | 3 hr |
| May 7, 1:13 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent, Queen Anne's | 43 min |
| May 7, 1:22 PM EDT | Areal Flood Advisory | PHI | Cecil, Kent | 4 hr |
| May 7, 7:03 PM EDT | Coastal Flood Advisory | LWX | Prince George's | 4 hr |
| May 8, 3:42 AM EDT | Coastal Flood Advisory | LWX | Prince George's | 8 hr |
| May 8, 2:21 PM EDT | Flood Watch | PBZ | 8 hr | |
| May 8, 5:35 PM EDT | Flash Flood Watch | LWX | Allegany, Washington | 7 hr |
| May 9, 3:16 AM EDT | Wind Advisory | PBZ | 17 hr | |
| May 9, 1:17 PM EDT | Severe Thunderstorm Watch | SPC | Saint Mary's | 8 hr |
| May 9, 5:58 PM EDT | Mesoscale Discussion | SPC | Caroline, Dorchester, Saint Mary's, Somerset, Talbot, Wicomico and 1 more | 62 min |
| May 9, 6:25 PM EDT | Severe Thunderstorm Watch | SPC | Calvert, Caroline, Dorchester, Somerset, Talbot, Wicomico and 1 more | 4 hr |
| May 9, 6:41 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester, Wicomico | 49 min |
| May 9, 7:20 PM EDT | Severe Thunderstorm Warning | AKQ | Wicomico, Worcester | 55 min |
| May 12, 3:08 PM EDT | Frost Advisory | LWX | Allegany | 17 hr |
| May 15, 3:12 AM EDT | Dense Fog Advisory | LWX | Allegany, Baltimore, Carroll, Frederick, Washington | 6 hr |
| May 16, 12:05 PM EDT | Mesoscale Discussion | SPC | Allegany, Garrett | 55 min |
| May 16, 2:36 PM EDT | Mesoscale Discussion | SPC | Baltimore, Carroll, Frederick, Howard, Montgomery, Prince George's and 1 more | 24 min |
| May 16, 3:27 PM EDT | Freeze Watch | LWX | Allegany | 12 hr |
| May 17, 3:18 AM EDT | Frost Advisory | LWX | Allegany, Washington | 30 hr |
| May 17, 3:18 AM EDT | Freeze Warning | LWX | Allegany | 18 hr |
| May 18, 3:53 AM EDT | Frost Advisory | LWX | Allegany, Baltimore, Carroll, Frederick, Washington | 28 hr |
| May 18, 3:53 AM EDT | Freeze Warning | LWX | Allegany | 28 hr |
| May 19, 3:04 PM EDT | Frost Advisory | LWX | Allegany | 17 hr |
| May 23, 5:34 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 26 min |
| May 23, 5:48 PM EDT | Flash Flood Warning | LWX | Allegany | 2 hr |
| May 25, 3:43 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Howard, Montgomery, Prince George's | 47 min |
| May 26, 7:15 AM EDT | Flash Flood Warning | LWX | Howard, Montgomery, Prince George's | 4 hr |
| May 26, 7:27 AM EDT | Flash Flood Warning | LWX | Howard, Montgomery, Prince George's | 4 hr |
| May 26, 9:36 AM EDT | River Flood Warning | LWX | Montgomery | 6 hr |
| May 26, 11:38 AM EDT | Flood Watch | LWX | Anne Arundel, Prince George's | 7 hr |
| May 26, 4:22 PM EDT | Coastal Flood Advisory | AKQ | Worcester | 10 hr |
| May 28, 2:51 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 39 min |
| May 28, 4:54 PM EDT | Mesoscale Discussion | SPC | Garrett | 66 min |
| May 28, 4:55 PM EDT | Flash Flood Watch | LWX | Allegany, Anne Arundel, Baltimore, Carroll, Charles, Frederick and 3 more | 7 hr |
| May 28, 8:43 PM EDT | Areal Flood Advisory | PBZ | Garrett | 3 hr |
| May 29, 12:14 AM EDT | Flash Flood Watch | LWX | Anne Arundel, Baltimore, Carroll, Charles, Frederick, Prince George's and 1 more | 4 hr |
| May 29, 12:40 AM EDT | Flash Flood Warning | LWX | Montgomery | 69 min |
| May 29, 4:22 AM EDT | Flash Flood Watch | LWX | Anne Arundel, Baltimore, Carroll, Frederick, Prince George's, City of Baltimore | 15 hr |
| May 29, 12:20 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 13 more | 55 min |
| May 29, 1:06 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 24 min |
| May 29, 1:26 PM EDT | Severe Thunderstorm Watch | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 15 more | 8 hr |
| May 29, 2:24 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Howard, Montgomery, Prince George's, City of Baltimore | 51 min |
| May 29, 3:15 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 27 min |
| May 29, 3:22 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 68 min |
| May 29, 4:30 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 14 more | 60 min |
| May 29, 4:45 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's, Talbot | 50 min |
| May 29, 5:21 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester | 39 min |
| May 29, 5:32 PM EDT | Severe Thunderstorm Warning | PHI | Caroline | 58 min |
| May 29, 5:39 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Saint Mary's | 40 min |
| May 29, 5:47 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester | 10 min |
| May 29, 5:52 PM EDT | Severe Thunderstorm Warning | LWX | Saint Mary's | 31 min |
| May 29, 6:20 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Cecil, Charles and 12 more | 55 min |
| May 29, 7:18 PM EDT | Severe Thunderstorm Warning | AKQ | Wicomico | 42 min |
| May 29, 7:41 PM EDT | Severe Thunderstorm Warning | AKQ | Wicomico, Worcester | 49 min |
| May 29, 7:51 PM EDT | Severe Thunderstorm Warning | AKQ | Worcester | 54 min |
| May 29, 8:06 PM EDT | Severe Thunderstorm Warning | AKQ | Worcester | 24 min |
| Jun 2, 1:31 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 14 more | 89 min |
| Jun 2, 1:58 PM EDT | Severe Thunderstorm Watch | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 15 more | 6 hr |
| Jun 2, 4:18 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Cecil, Charles and 11 more | 87 min |
| Jun 2, 4:40 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 50 min |
| Jun 2, 4:59 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 51 min |
| Jun 2, 5:30 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 56 min |
| Jun 2, 6:08 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Charles, Saint Mary's | 67 min |
| Jun 2, 6:40 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester | 65 min |
| Jun 2, 6:47 PM EDT | Mesoscale Discussion | SPC | Calvert, Charles, Dorchester, Saint Mary's, Somerset | 58 min |
| Jun 2, 7:00 PM EDT | Severe Thunderstorm Warning | LWX | Saint Mary's | 30 min |
| Jun 2, 7:16 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester, Somerset | 59 min |
| Jun 2, 9:07 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Saint Mary's | 38 min |
| Jun 2, 9:37 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Saint Mary's | 29 min |
| Jun 3, 4:39 AM EDT | Flash Flood Watch | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 3 more | 20 hr |
| Jun 3, 12:41 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Calvert, Charles, Howard, Montgomery, Prince George's and 2 more | 64 min |
| Jun 3, 1:06 PM EDT | Severe Thunderstorm Watch | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Caroline, Carroll and 17 more | 9 hr |
| Jun 3, 4:34 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Calvert, Caroline, Charles, Dorchester, Howard and 10 more | 86 min |
| Jun 3, 5:46 PM EDT | Severe Thunderstorm Warning | AKQ | Wicomico, Worcester | 44 min |
| Jun 3, 6:01 PM EDT | Severe Thunderstorm Warning | AKQ | Somerset, Wicomico | 44 min |
| Jun 3, 6:05 PM EDT | Severe Thunderstorm Warning | AKQ | Wicomico | 40 min |
| Jun 3, 6:19 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Saint Mary's | 41 min |
| Jun 3, 6:21 PM EDT | Severe Thunderstorm Warning | PHI | Kent, Queen Anne's | 54 min |
| Jun 3, 6:44 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 46 min |
| Jun 3, 7:10 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Caroline, Carroll and 17 more | 95 min |
| Jun 3, 7:18 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Montgomery, Prince George's | 42 min |
| Jun 3, 7:33 PM EDT | Flash Flood Warning | LWX | Montgomery | 3 hr |
| Jun 3, 9:21 PM EDT | Flash Flood Warning | LWX | City of Baltimore | 3 hr |
| Jun 3, 10:10 PM EDT | Flash Flood Warning | LWX | Baltimore | 2 hr |
| Jun 4, 4:28 AM EDT | Flood Watch | LWX | Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 5 more | 38 hr |
| Jun 4, 2:29 PM EDT | Flood Watch | PBZ | 24 hr | |
| Jun 4, 2:54 PM EDT | Flood Watch | PHI | Cecil | 29 hr |
| Jun 5, 9:58 AM EDT | Areal Flood Warning | LWX | Montgomery | 6 hr |
| Jun 5, 1:49 PM EDT | Mesoscale Discussion | SPC | Worcester | 56 min |
| Jun 7, 9:21 PM EDT | Dense Fog Advisory | AKQ | Dorchester, Somerset, Wicomico, Worcester | 11 hr |
| Jun 9, 5:47 AM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 28 min |
| Jun 9, 6:01 AM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 14 more | 59 min |
| Jun 9, 6:02 AM EDT | Severe Thunderstorm Warning | LWX | Montgomery, Prince George's | 43 min |
| Jun 9, 6:51 AM EDT | Severe Thunderstorm Warning | LWX | Charles | 39 min |
| Jun 9, 8:24 AM EDT | Severe Thunderstorm Warning | AKQ | Wicomico | 39 min |
| Jun 9, 1:14 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 61 min |
| Jun 9, 1:18 PM EDT | Flash Flood Watch | LWX | Allegany, Baltimore, Carroll, Frederick, Prince George's, Washington and 1 more | 7 hr |
| Jun 9, 1:38 PM EDT | Mesoscale Discussion | SPC | Allegany, Garrett | 97 min |
| Jun 9, 1:49 PM EDT | Flash Flood Watch | PHI | Cecil | 5 hr |
| Jun 9, 2:03 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 57 min |
| Jun 9, 2:07 PM EDT | Severe Thunderstorm Watch | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 9 more | 7 hr |
| Jun 9, 2:28 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 47 min |
| Jun 9, 2:29 PM EDT | Flash Flood Watch | PBZ | 3 hr | |
| Jun 9, 2:44 PM EDT | Severe Thunderstorm Warning | LWX | Allegany, Washington | 46 min |
| Jun 9, 2:52 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 38 min |
| Jun 9, 3:04 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 41 min |
| Jun 9, 3:05 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 28 min |
| Jun 9, 3:09 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 51 min |
| Jun 9, 3:14 PM EDT | Tornado Warning | PHI | Cecil | 46 min |
| Jun 9, 3:29 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 61 min |
| Jun 9, 3:43 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 47 min |
| Jun 9, 3:51 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Frederick, Washington | 39 min |
| Jun 9, 4:03 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 5 more | 57 min |
| Jun 9, 4:19 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent, Queen Anne's | 56 min |
| Jun 9, 4:26 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Frederick, Harford, Howard, Montgomery and 2 more | 49 min |
| Jun 9, 4:39 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 39 min |
| Jun 9, 4:52 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 53 min |
| Jun 9, 4:59 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Harford, Howard, Montgomery, Prince George's and 1 more | 61 min |
| Jun 9, 5:01 PM EDT | Flash Flood Warning | LWX | Baltimore, City of Baltimore | 119 min |
| Jun 9, 5:13 PM EDT | Flash Flood Warning | LWX | Harford | 2 hr |
| Jun 9, 5:13 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Calvert, Charles, Howard, Montgomery and 2 more | 62 min |
| Jun 9, 5:13 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 92 min |
| Jun 9, 5:18 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford, Howard, City of Baltimore | 57 min |
| Jun 9, 5:19 PM EDT | Areal Flood Warning | PHI | Cecil | 71 min |
| Jun 9, 5:46 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Charles, Prince George's, Saint Mary's | 59 min |
| Jun 9, 6:15 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester | 60 min |
| Jun 9, 6:17 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Charles, Saint Mary's | 43 min |
| Jun 9, 6:45 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 45 min |
| Jun 9, 7:05 PM EDT | Mesoscale Discussion | SPC | Saint Mary's, Somerset, Wicomico, Worcester | 115 min |
| Jun 10, 1:57 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Carroll, Charles, Frederick and 5 more | 93 min |
| Jun 10, 5:42 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Frederick, Harford | 48 min |
| Jun 10, 5:50 PM EDT | Flash Flood Warning | LWX | Montgomery | 3 hr |
| Jun 10, 6:23 PM EDT | Flash Flood Warning | LWX | Carroll | 3 hr |
| Jun 10, 6:25 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Prince George's | 50 min |
| Jun 10, 6:33 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Frederick, Howard | 42 min |
| Jun 10, 6:51 PM EDT | Flash Flood Warning | LWX | Prince George's | 3 hr |
| Jun 10, 6:59 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery, Prince George's | 46 min |
| Jun 10, 8:28 PM EDT | Flash Flood Warning | LWX | Baltimore | 2 hr |
| Jun 11, 3:58 AM EDT | Flash Flood Watch | LWX | Allegany, Anne Arundel, Baltimore, Carroll, Charles, Frederick and 3 more | 24 hr |
| Jun 11, 11:51 AM EDT | Mesoscale Discussion | SPC | Allegany, Carroll, Charles, Frederick, Howard, Montgomery and 2 more | 84 min |
| Jun 11, 1:59 PM EDT | Severe Thunderstorm Watch | SPC | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 7 more | 3 hr |
| Jun 11, 5:58 PM EDT | Severe Thunderstorm Warning | PHI | Kent, Queen Anne's, Talbot | 47 min |
| Jun 11, 8:24 PM EDT | Mesoscale Discussion | SPC | Calvert, Charles, Saint Mary's | 66 min |
| Jun 11, 10:01 PM EDT | Mesoscale Discussion | SPC | Baltimore, Caroline, Carroll, Cecil, Harford, Kent and 2 more | 59 min |
| Jun 13, 3:02 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 58 min |
| Jun 13, 4:50 PM EDT | Areal Flood Advisory | PHI | Caroline | 3 hr |
| Jun 13, 4:52 PM EDT | Severe Thunderstorm Warning | PHI | Caroline | 53 min |
| Jun 13, 4:59 PM EDT | Areal Flood Advisory | PHI | Cecil | 4 hr |
| Jun 13, 8:09 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 4 more | 66 min |
| Jun 15, 2:52 PM EDT | Severe Thunderstorm Warning | PHI | Kent | 37 min |
| Jun 16, 4:11 AM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Baltimore, Calvert, Charles, Prince George's, Saint Mary's and 1 more | 3 days |
| Jun 17, 3:26 AM EDT | Coastal Flood Watch | LWX | Anne Arundel, Baltimore, Calvert, Charles, Prince George's, Saint Mary's and 1 more | 12 hr |
| Jun 17, 1:23 PM EDT | Coastal Flood Advisory | PHI | Cecil, Kent, Queen Anne's, Talbot | 19 hr |
| Jun 17, 9:00 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 60 min |
| Jun 17, 9:22 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 53 min |
| Jun 17, 9:23 PM EDT | Flash Flood Watch | LWX | Allegany, Washington | 7 hr |
| Jun 17, 9:31 PM EDT | Mesoscale Discussion | SPC | Allegany, Garrett | 59 min |
| Jun 17, 9:48 PM EDT | Coastal Flood Advisory | AKQ | Dorchester | 5 hr |
| Jun 17, 9:56 PM EDT | Severe Thunderstorm Watch | SPC | Allegany, Garrett | 3 hr |
| Jun 17, 10:17 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 58 min |
| Jun 17, 11:27 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 38 min |
| Jun 18, 12:06 AM EDT | Severe Thunderstorm Warning | LWX | Allegany | 39 min |
| Jun 18, 12:20 AM EDT | Areal Flood Warning | PBZ | Garrett | 3 hr |
| Jun 18, 7:26 AM EDT | Flash Flood Warning | LWX | Anne Arundel | 111 min |
| Jun 18, 11:23 AM EDT | Coastal Flood Advisory | AKQ | Dorchester, Somerset, Wicomico | 16 hr |
| Jun 18, 11:40 AM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 11 more | 95 min |
| Jun 18, 11:49 AM EDT | Coastal Flood Statement | AKQ | Worcester | 6 hr |
| Jun 18, 12:08 PM EDT | Coastal Flood Advisory | PHI | Kent, Queen Anne's, Talbot | 4 hr |
| Jun 18, 2:21 PM EDT | Severe Thunderstorm Watch | SPC | Anne Arundel, Calvert, Caroline, Charles, Dorchester, Kent and 7 more | 9 hr |
| Jun 18, 2:26 PM EDT | Coastal Flood Warning | LWX | Anne Arundel, Baltimore, City of Baltimore | 12 hr |
| Jun 18, 2:56 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Saint Mary's | 49 min |
| Jun 18, 3:31 PM EDT | Mesoscale Discussion | SPC | Calvert, Caroline, Charles, Dorchester, Queen Anne's, Saint Mary's and 3 more | 59 min |
| Jun 18, 3:46 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Saint Mary's | 59 min |
| Jun 19, 11:53 AM EDT | Flash Flood Watch | PBZ | 23 hr | |
| Jun 19, 2:11 PM EDT | Coastal Flood Statement | AKQ | Worcester | 7 hr |
| Jun 19, 5:56 PM EDT | Mesoscale Discussion | SPC | Garrett | 64 min |
| Jun 19, 6:28 PM EDT | Severe Thunderstorm Watch | SPC | Allegany, Garrett | 3 hr |
| Jun 20, 3:14 AM EDT | Mesoscale Discussion | SPC | Allegany, Garrett | 91 min |
| Jun 20, 1:55 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Dorchester and 10 more | 95 min |
| Jun 20, 3:05 PM EDT | Tornado Watch | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Cecil, Charles and 10 more | 5 hr |
| Jun 20, 3:24 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Saint Mary's | 53 min |
| Jun 20, 3:34 PM EDT | Tornado Warning | LWX | Harford | 26 min |
| Jun 20, 3:46 PM EDT | Tornado Warning | LWX | Baltimore, Harford | 29 min |
| Jun 20, 3:57 PM EDT | Severe Thunderstorm Warning | PHI | Kent, Queen Anne's, Talbot | 66 min |
| Jun 20, 4:06 PM EDT | Tornado Warning | PHI | Kent, Queen Anne's, Talbot | 32 min |
| Jun 20, 4:23 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 37 min |
| Jun 20, 4:27 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 53 min |
| Jun 20, 5:01 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent, Queen Anne's | 59 min |
| Jun 20, 7:05 PM EDT | Severe Thunderstorm Warning | AKQ | Worcester | 25 min |
| Jun 20, 7:08 PM EDT | Tornado Warning | AKQ | Worcester | 22 min |
| Jun 21, 5:30 AM EDT | Coastal Flood Watch | AKQ | Worcester | 29 hr |
| Jun 21, 3:28 PM EDT | Coastal Flood Advisory | AKQ | Worcester | 7 hr |
| Jun 22, 10:45 AM EDT | Coastal Flood Advisory | AKQ | Worcester | 13 hr |
| Jun 23, 4:35 AM EDT | Coastal Flood Advisory | AKQ | Worcester | 20 hr |
| Jun 24, 3:49 AM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Baltimore, Charles, Prince George's, City of Baltimore | 7 hr |
| Jun 25, 5:36 AM EDT | Coastal Flood Statement | AKQ | Worcester | 63 hr |
| Jun 26, 2:19 PM EDT | Mesoscale Discussion | SPC | Baltimore, Carroll, Cecil, Frederick, Harford, Howard and 4 more | 56 min |
| Jun 26, 2:42 PM EDT | Severe Thunderstorm Watch | SPC | Allegany, Anne Arundel, Baltimore, Caroline, Carroll, Cecil and 10 more | 7 hr |
| Jun 26, 3:30 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 45 min |
| Jun 26, 4:15 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick, Howard, Montgomery | 45 min |
| Jun 26, 5:01 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Montgomery | 35 min |
| Jun 26, 5:02 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 43 min |
| Jun 26, 6:01 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Montgomery | 44 min |
| Jun 26, 6:13 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford | 36 min |
| Jun 26, 6:35 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 40 min |
| Jun 26, 7:15 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery, Prince George's | 45 min |
| Jun 26, 7:33 PM EDT | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Caroline, Carroll, Cecil and 10 more | 57 min |
| Jun 26, 7:50 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Charles, Prince George's | 40 min |
| Jun 26, 8:40 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Charles, Prince George's, Saint Mary's | 37 min |
| Jun 26, 8:42 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 14 min |
| Jun 26, 9:10 PM EDT | Severe Thunderstorm Warning | PHI | Queen Anne's, Talbot | 24 min |
| Jun 26, 9:11 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 49 min |
| Jun 26, 9:11 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 14 more | 64 min |
| Jun 30, 2:31 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 44 min |
| Jul 1, 12:03 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 8 more | 87 min |
| Jul 1, 12:48 PM EDT | Mesoscale Discussion | SPC | Calvert, Charles, Dorchester, Saint Mary's, Somerset, Talbot | 57 min |
| Jul 1, 8:09 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Charles, Prince George's, Saint Mary's | 38 min |
| Jul 1, 9:40 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester, Somerset | 50 min |
| Jul 6, 5:10 AM EDT | Dense Fog Advisory | LWX | Allegany, Carroll, Frederick, Washington | 4 hr |
| Jul 9, 8:51 AM EDT | Coastal Flood Statement | AKQ | Worcester | 60 hr |
| Jul 11, 2:55 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 21 min |
| Jul 12, 12:21 PM EDT | Mesoscale Discussion | SPC | Calvert, Caroline, Charles, Dorchester, Queen Anne's, Saint Mary's and 4 more | 54 min |
| Jul 16, 4:04 PM EDT | Mesoscale Discussion | SPC | Cecil | 86 min |
| Jul 16, 5:38 PM EDT | Coastal Flood Statement | AKQ | Worcester | 29 hr |
| Jul 17, 9:52 AM EDT | Mesoscale Discussion | SPC | Calvert, Charles, Prince George's, Saint Mary's | 83 min |
| Jul 17, 10:29 AM EDT | Severe Thunderstorm Watch | SPC | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 6 more | 7 hr |
| Jul 17, 12:59 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Charles, Howard, Montgomery and 4 more | 91 min |
| Jul 17, 6:10 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent, Queen Anne's | 80 min |
| Jul 17, 6:18 PM EDT | Mesoscale Discussion | SPC | Caroline | 57 min |
| Jul 17, 6:25 PM EDT | Areal Flood Advisory | PHI | Cecil, Kent | 113 min |
| Jul 19, 5:04 AM EDT | Coastal Flood Statement | AKQ | Worcester | 16 hr |
| Jul 19, 5:12 PM EDT | Coastal Flood Statement | AKQ | Worcester | 28 hr |
| Jul 21, 1:54 AM EDT | Coastal Flood Statement | AKQ | Worcester | 19 hr |
| Jul 21, 1:56 PM EDT | Mesoscale Discussion | SPC | Allegany, Frederick, Garrett, Washington | 64 min |
| Jul 21, 5:31 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 44 min |
| Jul 21, 9:24 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick | 51 min |
| Jul 22, 5:48 PM EDT | Coastal Flood Statement | AKQ | Worcester | 28 hr |
| Jul 23, 4:13 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 47 min |
| Jul 23, 11:02 PM EDT | Coastal Flood Statement | AKQ | Worcester | 19 hr |
| Jul 23, 11:44 PM EDT | Flash Flood Warning | LWX | Baltimore | 103 min |
| Jul 24, 3:34 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 14 more | 86 min |
| Jul 24, 5:54 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 48 min |
| Jul 24, 5:57 PM EDT | Coastal Flood Statement | AKQ | Worcester | 3 days |
| Jul 24, 6:28 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 62 min |
| Jul 24, 6:46 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 74 min |
| Jul 24, 7:06 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 24 min |
| Jul 25, 3:05 PM EDT | Mesoscale Discussion | SPC | Allegany, Frederick, Garrett, Washington | 55 min |
| Jul 25, 7:19 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Howard, Montgomery, Prince George's | 41 min |
| Jul 25, 9:41 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's, Talbot | 64 min |
| Jul 25, 10:29 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's, Talbot | 61 min |
| Jul 26, 1:40 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 15 more | 2 hr |
| Jul 26, 2:07 PM EDT | Severe Thunderstorm Watch | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 15 more | 7 hr |
| Jul 26, 3:35 PM EDT | Severe Thunderstorm Warning | LWX | Saint Mary's | 55 min |
| Jul 26, 3:55 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester, Somerset, Wicomico | 50 min |
| Jul 26, 4:16 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 15 more | 89 min |
| Jul 26, 4:19 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's, Talbot | 44 min |
| Jul 26, 4:37 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Montgomery | 53 min |
| Jul 26, 5:13 PM EDT | Severe Thunderstorm Warning | AKQ | Somerset | 47 min |
| Jul 26, 5:39 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Howard | 50 min |
| Jul 26, 5:55 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford, City of Baltimore | 65 min |
| Jul 26, 6:19 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford | 43 min |
| Jul 26, 7:04 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 29 min |
| Jul 26, 7:05 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 70 min |
| Jul 26, 8:21 PM EDT | Mesoscale Discussion | SPC | Caroline, Somerset, Wicomico, Worcester | 54 min |
| Jul 27, 3:32 PM EDT | Severe Thunderstorm Warning | AKQ | Worcester | 41 min |
| Jul 29, 12:49 PM EDT | Severe Thunderstorm Watch | SPC | Caroline, Cecil, Kent, Queen Anne's, Talbot | 8 hr |
| Jul 29, 1:32 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Calvert, Caroline, Charles, Dorchester, Kent and 8 more | 28 min |
| Jul 29, 3:05 PM EDT | Tornado Warning | LWX | Allegany, Washington | 25 min |
| Jul 29, 3:16 PM EDT | Tornado Warning | LWX | Anne Arundel, Calvert, Prince George's | 27 min |
| Jul 29, 4:41 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester | 23 min |
| Jul 29, 4:43 PM EDT | Severe Thunderstorm Warning | AKQ | Somerset, Wicomico, Worcester | 23 min |
| Jul 29, 5:05 PM EDT | Mesoscale Discussion | SPC | Baltimore, Caroline, Cecil, Harford, Kent, Queen Anne's | 55 min |
| Jul 29, 8:36 PM EDT | Areal Flood Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 101 min |
| Jul 30, 3:30 PM EDT | Flash Flood Watch | PHI | Cecil | 27 hr |
| Jul 31, 3:39 AM EDT | Flood Watch | PBZ | 10 hr | |
| Jul 31, 12:06 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Cecil, Charles and 12 more | 84 min |
| Jul 31, 1:18 PM EDT | Severe Thunderstorm Watch | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 11 more | 7 hr |
| Jul 31, 1:58 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick, Howard, Montgomery | 47 min |
| Jul 31, 2:06 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Howard, Montgomery, Prince George's, City of Baltimore | 39 min |
| Jul 31, 2:10 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll | 15 min |
| Jul 31, 2:17 PM EDT | Tornado Warning | LWX | Carroll, Frederick | 28 min |
| Jul 31, 2:25 PM EDT | Severe Thunderstorm Watch | SPC | Dorchester, Somerset, Wicomico, Worcester | 6 hr |
| Jul 31, 2:40 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Carroll, Harford, Howard, Montgomery and 1 more | 50 min |
| Jul 31, 3:04 PM EDT | Flash Flood Warning | PHI | Cecil | 3 hr |
| Jul 31, 3:05 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Cecil, Charles and 10 more | 85 min |
| Jul 31, 3:10 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent | 65 min |
| Jul 31, 3:28 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Harford, Prince George's | 15 min |
| Jul 31, 3:40 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 65 min |
| Jul 31, 3:54 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's | 53 min |
| Jul 31, 4:08 PM EDT | Flash Flood Warning | PHI | Cecil | 3 hr |
| Jul 31, 4:27 PM EDT | Severe Thunderstorm Warning | AKQ | Somerset, Wicomico, Worcester | 48 min |
| Jul 31, 4:34 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Calvert, Caroline, Charles, Kent, Queen Anne's and 1 more | 86 min |
| Jul 31, 4:57 PM EDT | Tornado Warning | AKQ | Worcester | 27 min |
| Jul 31, 6:54 PM EDT | Mesoscale Discussion | SPC | Somerset, Worcester | 66 min |
| Aug 2, 2:19 AM EDT | Flash Flood Watch | PHI | Cecil | 13 hr |
| Aug 2, 4:06 AM EDT | Flash Flood Watch | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 3 more | 10 hr |
| Aug 2, 7:12 AM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick, Washington | 67 min |
| Aug 2, 10:08 AM EDT | Flash Flood Warning | PHI | Cecil | 9 hr |
| Aug 2, 10:08 AM EDT | Severe Thunderstorm Warning | PHI | Cecil | 67 min |
| Aug 2, 10:25 AM EDT | Flash Flood Warning | LWX | Harford | 2 hr |
| Aug 2, 10:32 AM EDT | Tornado Warning | PHI | Cecil | 28 min |
| Aug 2, 10:39 AM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent, Queen Anne's | 96 min |
| Aug 2, 11:33 AM EDT | Mesoscale Discussion | SPC | Calvert, Caroline, Dorchester, Queen Anne's, Saint Mary's, Somerset and 3 more | 2 hr |
| Aug 2, 12:10 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Talbot | 65 min |
| Aug 2, 12:13 PM EDT | Areal Flood Advisory | PHI | Caroline, Kent, Queen Anne's, Talbot | 3 hr |
| Aug 2, 12:32 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester, Wicomico | 43 min |
| Aug 2, 12:42 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester, Wicomico | 48 min |
| Aug 2, 3:03 PM EDT | Areal Flood Advisory | AKQ | Somerset, Wicomico, Worcester | 87 min |
| Aug 2, 3:39 PM EDT | Flash Flood Warning | AKQ | Wicomico, Worcester | 2 hr |
| Aug 2, 6:21 PM EDT | Tornado Warning | AKQ | Dorchester, Wicomico | 39 min |
| Aug 2, 7:00 PM EDT | Tornado Warning | AKQ | Dorchester, Wicomico | 30 min |
| Aug 2, 7:15 PM EDT | Areal Flood Advisory | AKQ | Somerset, Wicomico, Worcester | 60 min |
| Aug 2, 7:30 PM EDT | Tornado Warning | AKQ | Somerset, Wicomico | 35 min |
| Aug 2, 7:40 PM EDT | Flash Flood Warning | AKQ | Somerset, Wicomico, Worcester | 89 min |
| Aug 9, 11:57 AM EDT | Flash Flood Watch | PHI | Cecil | 11 hr |
| Aug 9, 1:56 PM EDT | Heat Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 30 hr |
| Aug 9, 2:45 PM EDT | Mesoscale Discussion | SPC | Carroll, Cecil, Harford | 60 min |
| Aug 9, 3:17 PM EDT | Heat Advisory | AKQ | Dorchester, Somerset, Wicomico, Worcester | 29 hr |
| Aug 9, 3:18 PM EDT | Severe Thunderstorm Watch | SPC | Cecil | 5 hr |
| Aug 9, 3:31 PM EDT | Heat Advisory | LWX | Anne Arundel, Baltimore, Calvert, Charles, Prince George's, Saint Mary's and 1 more | 28 hr |
| Aug 9, 5:33 PM EDT | Severe Thunderstorm Watch | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Dorchester and 11 more | 4 hr |
| Aug 9, 5:53 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 82 min |
| Aug 9, 6:03 PM EDT | Areal Flood Advisory | PHI | Cecil | 117 min |
| Aug 9, 6:29 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 45 min |
| Aug 9, 6:48 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Cecil, Kent, Queen Anne's | 72 min |
| Aug 9, 7:11 PM EDT | Mesoscale Discussion | SPC | Baltimore, Caroline, Cecil, Harford, Kent, Queen Anne's | 2 hr |
| Aug 10, 11:06 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 54 min |
| Aug 11, 8:09 PM EDT | Severe Thunderstorm Warning | PHI | Queen Anne's, Talbot | 66 min |
| Aug 11, 8:42 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester | 48 min |
| Aug 11, 9:04 PM EDT | Severe Thunderstorm Warning | PHI | Talbot | 26 min |
| Aug 12, 12:36 PM EDT | Mesoscale Discussion | SPC | Allegany, Garrett, Washington | 84 min |
| Aug 12, 1:01 PM EDT | Mesoscale Discussion | SPC | Caroline, Cecil, Harford, Kent, Queen Anne's, Wicomico and 1 more | 89 min |
| Aug 12, 4:16 PM EDT | Areal Flood Advisory | PHI | Caroline, Queen Anne's, Talbot | 3 hr |
| Aug 12, 5:55 PM EDT | Flash Flood Warning | PHI | Cecil | 100 min |
| Aug 12, 7:37 PM EDT | Areal Flood Advisory | AKQ | Somerset, Wicomico, Worcester | 113 min |
| Aug 13, 2:58 AM EDT | Areal Flood Advisory | PHI | Cecil | 3 hr |
| Aug 13, 3:17 AM EDT | Dense Fog Advisory | PBZ | 7 hr | |
| Aug 13, 3:36 AM EDT | Flood Watch | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 36 min |
| Aug 13, 4:12 AM EDT | Flash Flood Watch | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 15 hr |
| Aug 18, 2:32 PM EDT | Mesoscale Discussion | SPC | Allegany, Garrett | 88 min |
| Aug 18, 5:10 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 32 min |
| Aug 18, 5:25 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll | 50 min |
| Aug 18, 5:28 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford, City of Baltimore | 47 min |
| Aug 18, 6:15 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford | 37 min |
| Aug 18, 6:48 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 72 min |
| Aug 18, 7:54 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 36 min |
| Aug 18, 8:35 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 55 min |
| Aug 19, 4:19 PM EDT | Severe Thunderstorm Warning | LWX | Saint Mary's | 41 min |
| Aug 19, 4:35 PM EDT | Tornado Warning | LWX | Saint Mary's | 40 min |
| Aug 19, 5:15 PM EDT | Severe Thunderstorm Warning | LWX | Saint Mary's | 45 min |
| Aug 19, 6:05 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Calvert, Caroline, Cecil, Dorchester, Harford and 7 more | 55 min |
| Aug 20, 5:21 PM EDT | Coastal Flood Statement | AKQ | Worcester | 59 hr |
| Aug 20, 6:54 PM EDT | Severe Thunderstorm Watch | SPC | Garrett | 5 hr |
| Aug 20, 10:40 PM EDT | Mesoscale Discussion | SPC | Allegany, Garrett | 95 min |
| Aug 21, 12:16 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Charles, Dorchester and 8 more | 119 min |
| Aug 21, 12:36 PM EDT | Severe Thunderstorm Watch | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 15 more | 7 hr |
| Aug 21, 2:47 PM EDT | Flash Flood Watch | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 35 hr |
| Aug 21, 2:53 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Saint Mary's | 37 min |
| Aug 21, 3:21 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Calvert, Caroline, Charles, Dorchester, Prince George's and 3 more | 84 min |
| Aug 21, 3:28 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 32 min |
| Aug 21, 3:28 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent, Queen Anne's | 62 min |
| Aug 21, 3:48 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's, Talbot | 57 min |
| Aug 21, 4:05 PM EDT | High Surf Advisory | AKQ | Worcester | 37 hr |
| Aug 21, 4:13 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent, Queen Anne's | 77 min |
| Aug 21, 6:33 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Montgomery | 42 min |
| Aug 21, 7:07 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick, Howard, Montgomery | 53 min |
| Aug 21, 7:16 PM EDT | Tornado Warning | LWX | Carroll, Frederick, Howard, Montgomery | 29 min |
| Aug 21, 7:30 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Cecil, Charles and 11 more | 60 min |
| Aug 21, 7:39 PM EDT | Tornado Warning | LWX | Baltimore, Carroll, Howard | 20 min |
| Aug 21, 7:47 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Howard, City of Baltimore | 33 min |
| Aug 21, 9:44 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford | 16 min |
| Aug 21, 10:14 PM EDT | Areal Flood Advisory | PHI | Cecil, Kent | 3 hr |
| Aug 21, 11:49 PM EDT | Areal Flood Advisory | PHI | Caroline, Queen Anne's, Talbot | 116 min |
| Aug 22, 12:45 AM EDT | Areal Flood Warning | PHI | Caroline | 17 hr |
| Aug 22, 1:28 AM EDT | Flash Flood Warning | PHI | Caroline, Queen Anne's | 4 hr |
| Aug 22, 2:19 AM EDT | Areal Flood Advisory | PHI | Caroline, Queen Anne's, Talbot | 6 hr |
| Aug 22, 4:06 AM EDT | Flash Flood Watch | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 3 more | 19 hr |
| Aug 22, 4:26 AM EDT | Areal Flood Advisory | PHI | Caroline | 6 hr |
| Aug 22, 5:42 AM EDT | Areal Flood Advisory | PHI | Caroline, Queen Anne's | 3 hr |
| Aug 22, 8:12 AM EDT | Areal Flood Advisory | PHI | Caroline, Kent, Queen Anne's, Talbot | 3 hr |
| Aug 22, 9:21 AM EDT | Areal Flood Advisory | AKQ | Somerset, Wicomico | 114 min |
| Aug 22, 11:17 AM EDT | Areal Flood Advisory | AKQ | Somerset, Wicomico, Worcester | 118 min |
| Aug 22, 1:01 PM EDT | Areal Flood Advisory | AKQ | Somerset, Worcester | 119 min |
| Aug 22, 1:58 PM EDT | Flash Flood Watch | AKQ | Dorchester, Somerset, Wicomico, Worcester | 7 hr |
| Aug 22, 2:11 PM EDT | Severe Thunderstorm Watch | SPC | Calvert, Charles, Dorchester, Saint Mary's, Somerset, Wicomico and 1 more | 5 hr |
| Aug 22, 3:53 PM EDT | Flash Flood Warning | PHI | Caroline, Talbot | 6 hr |
| Aug 22, 4:46 PM EDT | Flash Flood Warning | PHI | Caroline | 5 hr |
| Aug 22, 4:47 PM EDT | Flash Flood Warning | LWX | Prince George's | 3 hr |
| Aug 22, 4:49 PM EDT | Flash Flood Warning | LWX | Charles | 3 hr |
| Aug 22, 5:38 PM EDT | Flash Flood Warning | LWX | Anne Arundel, Calvert | 5 hr |
| Aug 22, 5:40 PM EDT | Areal Flood Warning | PHI | Caroline | 14 hr |
| Aug 22, 6:02 PM EDT | Flash Flood Warning | PHI | Cecil, Kent, Queen Anne's | 4 hr |
| Aug 23, 8:08 AM EDT | Coastal Flood Statement | AKQ | Worcester | 60 hr |
| Aug 24, 4:46 AM EDT | Severe Thunderstorm Warning | LWX | Saint Mary's | 58 min |
| Aug 27, 1:51 PM EDT | Coastal Flood Statement | AKQ | Worcester | 3 hr |
| Aug 27, 5:04 PM EDT | Coastal Flood Statement | AKQ | Worcester | 72 hr |
| Aug 28, 12:12 AM EDT | Flash Flood Warning | LWX | Carroll | 4 hr |
| Aug 28, 12:29 AM EDT | Flash Flood Warning | LWX | Baltimore | 4 hr |
| Aug 28, 1:01 AM EDT | Flash Flood Warning | LWX | Harford | 4 hr |
| Aug 28, 1:40 AM EDT | Flash Flood Warning | PHI | Cecil | 5 hr |
| Aug 28, 5:00 AM EDT | Flash Flood Warning | LWX | Harford | 77 min |
| Aug 28, 5:50 AM EDT | Flash Flood Watch | LWX | Anne Arundel, Baltimore, Carroll, Frederick, Prince George's, City of Baltimore | 22 hr |
| Aug 28, 12:13 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 47 min |
| Aug 28, 12:24 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Calvert, Caroline, Dorchester, Kent, Queen Anne's and 3 more | 2 hr |
| Aug 28, 1:29 PM EDT | Flash Flood Warning | LWX | Harford | 103 min |
| Aug 28, 1:47 PM EDT | Flash Flood Warning | LWX | Carroll, Frederick, Howard, Montgomery | 103 min |
| Aug 28, 2:13 PM EDT | Flash Flood Warning | PHI | Cecil | 2 hr |
| Aug 28, 2:52 PM EDT | Flash Flood Watch | PHI | Cecil | 14 hr |
| Aug 28, 2:53 PM EDT | Flash Flood Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 6 hr |
| Aug 28, 3:21 PM EDT | Flash Flood Warning | PHI | Caroline, Talbot | 6 hr |
| Aug 28, 6:03 PM EDT | Areal Flood Advisory | AKQ | Dorchester, Somerset, Wicomico | 57 min |
| Aug 28, 6:49 PM EDT | Areal Flood Advisory | PHI | Caroline, Talbot | 5 hr |
| Aug 28, 7:40 PM EDT | Areal Flood Advisory | AKQ | Dorchester, Somerset, Wicomico | 2 hr |
| Aug 28, 9:28 PM EDT | Flash Flood Warning | LWX | Carroll | 3 hr |
| Aug 29, 9:47 PM EDT | Severe Thunderstorm Warning | PHI | Kent, Queen Anne's | 58 min |
| Aug 29, 10:02 PM EDT | Special Weather Statement | CTP | Cecil | 28 min |
| Aug 30, 6:47 PM EDT | Coastal Flood Statement | AKQ | Worcester | 49 hr |
| Sep 1, 4:41 PM EDT | Coastal Flood Statement | AKQ | Worcester | 27 hr |
| Sep 2, 10:32 PM EDT | Coastal Flood Statement | AKQ | Worcester | 21 hr |
| Sep 3, 8:12 PM EDT | Coastal Flood Statement | AKQ | Worcester | 24 hr |
| Sep 4, 8:04 PM EDT | Coastal Flood Statement | AKQ | Worcester | 24 hr |
| Sep 5, 8:31 PM EDT | Coastal Flood Statement | AKQ | Worcester | 47 hr |
| Sep 7, 5:50 PM EDT | Coastal Flood Advisory | LWX | Anne Arundel | 3 hr |
| Sep 7, 8:10 PM EDT | Coastal Flood Statement | AKQ | Worcester | 20 hr |
| Sep 8, 11:19 AM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Baltimore, Calvert, Charles, Prince George's, Saint Mary's and 1 more | 17 hr |
| Sep 8, 4:23 PM EDT | Coastal Flood Advisory | AKQ | Worcester | 58 hr |
| Sep 9, 4:27 PM EDT | High Surf Advisory | AKQ | Worcester | 34 hr |
| Sep 10, 4:36 AM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Baltimore, Calvert, Charles, Prince George's, Saint Mary's and 1 more | 21 hr |
| Sep 10, 10:41 AM EDT | Wind Advisory | AKQ | Worcester | 9 hr |
| Sep 10, 11:01 AM EDT | Coastal Flood Statement | AKQ | Worcester | 57 hr |
| Sep 10, 9:26 PM EDT | Areal Flood Advisory | AKQ | Somerset, Wicomico, Worcester | 109 min |
| Sep 11, 2:12 AM EDT | High Surf Advisory | AKQ | Worcester | 8 hr |
| Sep 11, 10:55 AM EDT | Areal Flood Advisory | PHI | Cecil, Kent | 3 hr |
| Sep 11, 4:39 PM EDT | Areal Flood Warning | LWX | Baltimore, Harford | 4 hr |
| Sep 11, 5:17 PM EDT | Areal Flood Advisory | PHI | Cecil | 3 hr |
| Sep 16, 2:39 AM EDT | Coastal Flood Advisory | AKQ | Worcester | 42 hr |
| Sep 16, 3:17 PM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Baltimore, Calvert, Saint Mary's, City of Baltimore | 18 hr |
| Sep 17, 2:16 PM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Baltimore, Calvert, Charles, Prince George's, Saint Mary's and 1 more | 32 hr |
| Sep 17, 9:02 PM EDT | Coastal Flood Statement | AKQ | Worcester | 47 hr |
| Sep 18, 2:00 PM EDT | Coastal Flood Advisory | PHI | Kent, Queen Anne's, Talbot | 8 hr |
| Sep 19, 10:30 PM EDT | Coastal Flood Statement | AKQ | Worcester | 70 hr |
| Sep 22, 9:06 PM EDT | Coastal Flood Statement | AKQ | Worcester | 23 hr |
| Sep 24, 5:13 PM EDT | Coastal Flood Statement | AKQ | Worcester | 25 hr |
| Sep 25, 6:35 PM EDT | Coastal Flood Statement | AKQ | Worcester | 25 hr |
| Sep 26, 3:58 PM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Baltimore, Calvert, Charles, Prince George's, Saint Mary's and 1 more | 12 hr |
| Sep 26, 4:36 PM EDT | Coastal Flood Advisory | AKQ | Dorchester, Somerset, Wicomico | 11 hr |
| Sep 26, 7:55 PM EDT | Coastal Flood Advisory | PHI | Cecil, Kent, Queen Anne's, Talbot | 8 hr |
| Sep 26, 8:00 PM EDT | Coastal Flood Statement | AKQ | Worcester | 24 hr |
| Sep 27, 4:09 AM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Baltimore, Calvert, Charles, Prince George's, Saint Mary's and 1 more | 13 hr |
| Sep 27, 7:45 AM EDT | Coastal Flood Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 9 hr |
| Sep 27, 3:06 PM EDT | Wind Advisory | PBZ | 28 hr | |
| Sep 30, 3:45 AM EDT | Frost Advisory | LWX | Allegany | 29 hr |
| Sep 30, 3:27 PM EDT | Frost Advisory | PBZ | 18 hr | |
| Oct 4, 2:24 AM EDT | Dense Fog Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 7 hr |
| Oct 4, 2:42 AM EDT | Dense Fog Advisory | AKQ | Dorchester, Somerset, Wicomico, Worcester | 5 hr |
| Oct 6, 3:19 PM EDT | Wind Advisory | PHI | Cecil | 29 hr |
| Oct 6, 8:33 PM EDT | Wind Advisory | PBZ | 19 hr | |
| Oct 6, 10:03 PM EDT | Wind Advisory | LWX | Allegany, Anne Arundel, Baltimore, Carroll, Frederick, Prince George's and 2 more | 20 hr |
| Oct 11, 5:34 AM EDT | Frost Advisory | LWX | Allegany | 2 hr |
| Oct 11, 2:18 PM EDT | Frost Advisory | PBZ | 16 hr | |
| Oct 11, 2:47 PM EDT | Frost Advisory | LWX | Allegany | 17 hr |
| Oct 13, 3:24 AM EDT | Freeze Warning | PBZ | 30 hr | |
| Oct 13, 4:10 AM EDT | Frost Advisory | LWX | Allegany, Washington | 28 hr |
| Oct 14, 3:51 PM EDT | Coastal Flood Watch | AKQ | Worcester | 23 hr |
| Oct 15, 2:36 PM EDT | Coastal Flood Warning | AKQ | Worcester | 67 hr |
| Oct 15, 2:36 PM EDT | Coastal Flood Advisory | AKQ | Worcester | 4 days |
| Oct 15, 3:10 PM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Baltimore, Calvert, Charles, Prince George's, Saint Mary's and 1 more | 54 hr |
| Oct 15, 3:31 PM EDT | Winter Weather Advisory | LWX | Allegany | 18 hr |
| Oct 15, 7:44 PM EDT | High Surf Advisory | AKQ | Worcester | 34 hr |
| Oct 16, 4:09 PM EDT | Coastal Flood Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 36 hr |
| Oct 17, 9:41 PM EDT | Freeze Warning | LWX | Allegany | 11 hr |
| Oct 17, 10:31 PM EDT | High Surf Advisory | AKQ | Worcester | 11 hr |
| Oct 18, 3:41 AM EDT | Freeze Watch | LWX | Allegany, Washington | 11 hr |
| Oct 18, 10:17 AM EDT | High Surf Advisory | AKQ | Worcester | 12 hr |
| Oct 18, 2:04 PM EDT | Frost Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 19 hr |
| Oct 18, 2:58 PM EDT | Frost Advisory | LWX | Anne Arundel, Baltimore, City of Baltimore | 18 hr |
| Oct 18, 2:58 PM EDT | Freeze Warning | LWX | Allegany, Carroll, Frederick, Washington | 18 hr |
| Oct 19, 1:12 PM EDT | Frost Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 18 hr |
| Oct 19, 2:48 PM EDT | Frost Advisory | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 4 more | 18 hr |
| Oct 19, 3:59 PM EDT | Frost Advisory | AKQ | Dorchester, Somerset, Wicomico, Worcester | 16 hr |
| Oct 24, 5:25 AM EDT | Mesoscale Discussion | SPC | Allegany, Garrett | 95 min |
| Oct 24, 12:19 PM EDT | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Cecil, Charles and 12 more | 116 min |
| Oct 24, 3:30 PM EDT | Areal Flood Advisory | PHI | Cecil | 4 hr |
| Oct 24, 4:49 PM EDT | Areal Flood Advisory | PHI | Cecil | 4 hr |
| Oct 24, 7:19 PM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Baltimore, Calvert, Saint Mary's, City of Baltimore | 7 hr |
| Oct 24, 7:46 PM EDT | Coastal Flood Advisory | AKQ | Dorchester | 6 hr |
| Oct 29, 11:00 AM EDT | Coastal Flood Statement | AKQ | Worcester | 9 hr |
| Oct 29, 10:18 PM EDT | Coastal Flood Advisory | LWX | Anne Arundel, Baltimore, Calvert, Charles, Prince George's, Saint Mary's and 1 more | 49 hr |
| Oct 29, 11:54 PM EDT | Coastal Flood Advisory | AKQ | Dorchester | 4 hr |
| Oct 30, 4:18 AM EDT | Coastal Flood Advisory | AKQ | Dorchester | 13 hr |
| Oct 30, 9:14 AM EDT | Coastal Flood Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 8 hr |
| Nov 1, 7:03 PM EST | Coastal Flood Advisory | AKQ | Worcester | 15 hr |
| Nov 2, 2:55 PM EST | Freeze Watch | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 11 hr |
| Nov 2, 4:10 PM EST | Coastal Flood Advisory | AKQ | Worcester | 18 hr |
| Nov 3, 2:09 AM EST | Frost Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 30 hr |
| Nov 3, 1:24 PM EST | Coastal Flood Advisory | LWX | Anne Arundel, Baltimore, Calvert, Prince George's, Saint Mary's, City of Baltimore | 11 hr |
| Nov 3, 1:35 PM EST | Frost Advisory | LWX | Baltimore, Carroll, Frederick, Washington | 18 hr |
| Nov 3, 8:24 PM EST | Freeze Warning | LWX | Washington | 12 hr |
| Nov 5, 2:56 PM EST | Freeze Watch | LWX | Anne Arundel, Baltimore, Calvert, Charles, Prince George's, Saint Mary's and 1 more | 13 hr |
| Nov 6, 3:27 AM EST | Freeze Warning | LWX | Anne Arundel, Baltimore, Calvert, Charles, Prince George's, Saint Mary's and 1 more | 29 hr |
| Nov 6, 3:41 AM EST | Freeze Watch | AKQ | Worcester | 9 hr |
| Nov 6, 3:41 AM EST | Freeze Warning | AKQ | Dorchester, Somerset, Wicomico, Worcester | 28 hr |
| Nov 10, 4:08 AM EST | Coastal Flood Watch | AKQ | Worcester | 25 hr |
| Nov 10, 3:36 PM EST | Flood Watch | AKQ | Dorchester, Somerset, Wicomico, Worcester | 60 hr |
| Nov 11, 3:57 AM EST | High Wind Warning | AKQ | Worcester | 56 hr |
| Nov 11, 3:57 AM EST | Wind Advisory | AKQ | Dorchester, Somerset, Wicomico, Worcester | 62 hr |
| Nov 11, 4:31 AM EST | Coastal Flood Watch | LWX | Anne Arundel, Baltimore, Calvert, Charles, Prince George's, Saint Mary's and 1 more | 47 hr |
| Nov 11, 4:46 AM EST | Coastal Flood Warning | AKQ | Dorchester, Somerset, Wicomico, Worcester | 3 days |
| Nov 11, 4:46 AM EST | High Surf Advisory | AKQ | Worcester | 71 hr |
| Nov 11, 11:47 AM EST | Wind Advisory | LWX | Anne Arundel, Calvert, Saint Mary's | 40 hr |
| Nov 11, 3:09 PM EST | Coastal Flood Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 67 hr |
| Nov 11, 9:48 PM EST | Coastal Flood Advisory | LWX | Anne Arundel, Baltimore, Calvert, Charles, Prince George's, Saint Mary's and 1 more | 71 hr |
| Nov 12, 3:00 AM EST | Coastal Flood Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 3 days |
| Nov 12, 7:51 AM EST | Areal Flood Warning | LWX | Calvert, Saint Mary's | 6 hr |
| Nov 12, 8:30 AM EST | Flood Watch | LWX | Anne Arundel, Calvert, Charles, Prince George's, Saint Mary's | 31 hr |
| Nov 12, 2:28 PM EST | Coastal Flood Warning | LWX | Calvert, Charles, Saint Mary's | 40 hr |
| Nov 12, 3:33 PM EST | Areal Flood Warning | LWX | Saint Mary's | 6 hr |
| Nov 12, 4:30 PM EST | Areal Flood Warning | LWX | Calvert | 6 hr |
| Nov 12, 9:38 PM EST | Areal Flood Warning | LWX | Saint Mary's | 12 hr |
| Nov 14, 5:13 AM EST | High Surf Advisory | AKQ | Worcester | 5 hr |
| Nov 14, 10:27 AM EST | Coastal Flood Advisory | AKQ | Dorchester, Somerset, Wicomico, Worcester | 31 hr |
| Nov 14, 9:06 PM EST | Dense Fog Advisory | LWX | Allegany, Frederick, Washington | 12 hr |
| Nov 15, 9:48 AM EST | Coastal Flood Advisory | LWX | Anne Arundel, Calvert, Charles, Prince George's, Saint Mary's | 11 hr |
| Nov 18, 3:12 PM EST | Coastal Flood Advisory | LWX | Anne Arundel, Calvert, Charles, Prince George's, Saint Mary's | 31 hr |
| Nov 25, 3:17 PM EST | Winter Storm Watch | LWX | Allegany | 24 hr |
| Nov 25, 7:20 PM EST | Dense Fog Advisory | LWX | Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 5 more | 17 hr |
| Nov 26, 12:03 AM EST | Dense Fog Advisory | AKQ | Dorchester, Somerset, Wicomico, Worcester | 9 hr |
| Nov 26, 2:49 PM EST | Winter Weather Advisory | LWX | Allegany | 30 hr |
| Nov 26, 3:19 PM EST | Winter Weather Advisory | PBZ | 33 hr | |
| Nov 27, 3:16 PM EST | Wind Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 24 hr |
| Dec 2, 2:25 AM EST | Wind Advisory | PBZ | 32 hr | |
| Dec 2, 4:00 AM EST | Wind Advisory | LWX | Allegany | 18 hr |
| Dec 2, 4:33 AM EST | High Surf Advisory | AKQ | Worcester | 21 hr |
| Dec 2, 4:40 AM EST | Wind Advisory | AKQ | Worcester | 16 hr |
| Dec 2, 1:38 PM EST | Flood Watch | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 4 more | 14 hr |
| Dec 2, 9:01 PM EST | Tornado Watch | SPC | Worcester | 6 hr |
| Dec 3, 12:12 AM EST | Mesoscale Discussion | SPC | Calvert, Caroline, Dorchester, Saint Mary's, Somerset, Talbot and 2 more | 93 min |
| Dec 4, 2:17 PM EST | Winter Weather Advisory | LWX | Allegany, Anne Arundel, Baltimore, Carroll, Charles, Frederick and 3 more | 30 hr |
| Dec 4, 7:57 PM EST | Winter Weather Advisory | PBZ | 21 hr | |
| Dec 4, 11:07 PM EST | Winter Storm Warning | LWX | Allegany | 18 hr |
| Dec 5, 3:25 AM EST | Winter Weather Advisory | PHI | Cecil, Kent, Queen Anne's | 19 hr |
| Dec 5, 11:52 AM EST | Winter Storm Warning | PBZ | 5 hr | |
| Dec 7, 2:16 PM EST | Winter Storm Watch | LWX | Allegany, Carroll, Frederick, Washington | 24 hr |
| Dec 7, 2:41 PM EST | Winter Storm Watch | PBZ | 24 hr | |
| Dec 8, 7:57 AM EST | Flood Watch | AKQ | Dorchester, Somerset, Wicomico, Worcester | 23 hr |
| Dec 8, 9:50 AM EST | Winter Storm Warning | LWX | Allegany | 21 hr |
| Dec 8, 10:09 AM EST | Flood Watch | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 4 more | 21 hr |
| Dec 8, 1:14 PM EST | Mesoscale Discussion | SPC | Garrett | 5 hr |
| Dec 8, 2:30 PM EST | Winter Weather Advisory | LWX | Baltimore, Carroll, Frederick, Washington | 17 hr |
| Dec 8, 2:35 PM EST | Winter Storm Warning | PBZ | 15 hr | |
| Dec 8, 2:40 PM EST | Flash Flood Watch | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 21 hr |
| Dec 8, 2:42 PM EST | Wind Advisory | PBZ | 22 hr | |
| Dec 9, 4:02 AM EST | Wind Advisory | LWX | Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 5 more | 17 hr |
| Dec 9, 6:53 AM EST | Areal Flood Warning | PHI | Cecil | 8 hr |
| Dec 9, 7:08 AM EST | Areal Flood Advisory | PHI | Caroline, Kent, Queen Anne's, Talbot | 4 hr |
| Dec 9, 9:20 AM EST | Coastal Flood Advisory | LWX | Anne Arundel, Baltimore, Calvert, Charles, Prince George's, Saint Mary's and 1 more | 20 hr |
| Dec 9, 12:00 PM EST | Wind Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 33 hr |
| Dec 9, 1:00 PM EST | High Wind Warning | PBZ | 8 hr | |
| Dec 9, 2:07 PM EST | High Wind Warning | LWX | Allegany | 5 hr |
| Dec 9, 2:55 PM EST | Areal Flood Warning | PHI | Cecil | 7 hr |
| Dec 9, 3:08 PM EST | Wind Advisory | AKQ | Worcester | 6 hr |
| Dec 10, 2:41 PM EST | Wind Chill Advisory | PBZ | 18 hr | |
| Dec 10, 3:00 PM EST | Wind Chill Advisory | LWX | Allegany | 18 hr |
| Dec 12, 2:48 PM EST | Winter Weather Advisory | PBZ | 22 hr | |
| Dec 12, 3:21 PM EST | Winter Weather Advisory | LWX | Allegany, Baltimore, Carroll, Frederick, Washington, City of Baltimore | 23 hr |
| Dec 13, 7:55 PM EST | Dense Fog Advisory | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 4 more | 13 hr |
| Dec 13, 10:24 PM EST | Dense Fog Advisory | AKQ | Dorchester, Somerset, Wicomico, Worcester | 12 hr |
| Dec 17, 1:48 PM EST | Winter Storm Watch | LWX | Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 5 more | 14 hr |
| Dec 17, 2:10 PM EST | Winter Storm Watch | PBZ | 13 hr | |
| Dec 17, 3:21 PM EST | Coastal Flood Watch | AKQ | Worcester | 24 hr |
| Dec 17, 3:30 PM EST | Winter Storm Watch | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 22 hr |
| Dec 17, 3:53 PM EST | Winter Storm Watch | AKQ | Dorchester, Somerset, Wicomico, Worcester | 20 hr |
| Dec 18, 3:06 AM EST | Winter Storm Warning | PBZ | 48 hr | |
| Dec 18, 4:03 AM EST | High Surf Advisory | AKQ | Worcester | 58 hr |
| Dec 18, 4:05 AM EST | Winter Storm Warning | LWX | Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 5 more | 47 hr |
| Dec 18, 4:08 AM EST | Winter Storm Warning | AKQ | Dorchester, Somerset, Wicomico | 48 hr |
| Dec 18, 4:40 AM EST | Winter Storm Warning | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 46 hr |
| Dec 18, 12:13 PM EST | Winter Weather Advisory | AKQ | Worcester | 40 hr |
| Dec 18, 3:05 PM EST | Coastal Flood Warning | AKQ | Worcester | 24 hr |
| Dec 18, 7:22 PM EST | Mesoscale Discussion | SPC | Calvert, Charles, Prince George's, Saint Mary's | 5 hr |
| Dec 18, 11:06 PM EST | Blizzard Warning | LWX | Anne Arundel, Baltimore, Calvert, Charles, Prince George's, Saint Mary's and 1 more | 16 hr |
| Dec 18, 11:06 PM EST | Winter Storm Warning | LWX | Anne Arundel, Calvert, Charles, Prince George's, Saint Mary's | 23 hr |
| Dec 19, 12:34 AM EST | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Caroline, Carroll and 14 more | 5 hr |
| Dec 19, 6:57 AM EST | Mesoscale Discussion | SPC | Allegany, Anne Arundel, Baltimore, Calvert, Caroline, Carroll and 15 more | 6 hr |
| Dec 19, 10:47 AM EST | Coastal Flood Advisory | LWX | Calvert, Charles, Saint Mary's | 8 hr |
| Dec 19, 11:09 AM EST | Coastal Flood Advisory | AKQ | Dorchester, Somerset, Wicomico | 8 hr |
| Dec 19, 12:27 PM EST | Mesoscale Discussion | SPC | Anne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 11 more | 6 hr |
| Dec 20, 3:24 AM EST | Coastal Flood Advisory | AKQ | Worcester | 11 hr |
| Dec 23, 2:46 PM EST | Winter Storm Watch | LWX | Allegany, Washington | 24 hr |
| Dec 23, 3:45 PM EST | Winter Storm Watch | PBZ | 23 hr | |
| Dec 24, 2:20 PM EST | Winter Weather Advisory | PBZ | 22 hr | |
| Dec 24, 2:29 PM EST | Winter Weather Advisory | LWX | Allegany, Baltimore, Carroll, Frederick, Washington | 31 hr |
| Dec 24, 2:30 PM EST | Flood Watch | LWX | Anne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 3 more | 36 hr |
| Dec 25, 2:51 AM EST | Wind Advisory | PBZ | 17 hr | |
| Dec 25, 4:32 AM EST | Wind Advisory | LWX | Allegany | 13 hr |
| Dec 25, 7:14 AM EST | Winter Storm Warning | PBZ | 9 hr | |
| Dec 25, 7:50 AM EST | Mesoscale Discussion | SPC | Allegany | 4 hr |
| Dec 25, 4:14 PM EST | Dense Fog Advisory | LWX | Allegany, Anne Arundel, Baltimore, Carroll, Frederick, Prince George's and 2 more | 4 hr |
| Dec 25, 4:55 PM EST | Areal Flood Warning | LWX | Calvert, Saint Mary's | 3 hr |
| Dec 25, 7:16 PM EST | Areal Flood Warning | LWX | Montgomery | 98 min |
| Dec 25, 8:14 PM EST | Areal Flood Warning | LWX | Anne Arundel, Baltimore, Harford, Howard, City of Baltimore | 91 min |
| Dec 26, 2:18 AM EST | Coastal Flood Advisory | LWX | Anne Arundel, Baltimore, Calvert, Charles, Prince George's, Saint Mary's and 1 more | 10 hr |
| Dec 26, 7:34 AM EST | River Flood Warning | LWX | Montgomery | 6 days |
| Dec 26, 7:42 AM EST | Coastal Flood Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 15 hr |
| Dec 26, 8:00 AM EST | Areal Flood Warning | LWX | Anne Arundel, Baltimore, Carroll, Frederick, Howard, Montgomery and 2 more | 6 hr |
| Dec 26, 8:56 AM EST | Coastal Flood Advisory | AKQ | Dorchester, Somerset | 7 hr |
| Dec 26, 9:14 AM EST | Coastal Flood Warning | LWX | Anne Arundel, Baltimore, Calvert, Charles, Prince George's, Saint Mary's and 1 more | 9 hr |
| Dec 26, 10:21 AM EST | River Flood Warning | LWX | Frederick | 34 hr |
| Dec 26, 5:47 PM EST | Coastal Flood Advisory | LWX | Anne Arundel, Baltimore, Calvert, Charles, Prince George's, Saint Mary's and 1 more | 11 hr |
| Dec 26, 9:08 PM EST | River Flood Warning | LWX | Washington | 6 days |
| Dec 27, 1:12 AM EST | Dense Fog Advisory | LWX | Allegany, Washington | 8 hr |
| Dec 27, 3:16 PM EST | Winter Weather Advisory | LWX | Allegany | 39 hr |
| Dec 27, 3:49 PM EST | Winter Weather Advisory | PBZ | 43 hr | |
| Dec 28, 1:42 PM EST | Wind Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 27 hr |
| Dec 28, 2:48 PM EST | Wind Advisory | LWX | Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 5 more | 23 hr |
| Dec 28, 3:19 PM EST | Wind Advisory | AKQ | Dorchester, Somerset, Wicomico, Worcester | 24 hr |
| Dec 30, 1:58 PM EST | Winter Weather Advisory | LWX | Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 5 more | 21 hr |
| Dec 30, 2:23 PM EST | Winter Weather Advisory | PBZ | 22 hr | |
| Dec 30, 10:57 PM EST | Mesoscale Discussion | SPC | Charles | 6 hr |
| Dec 31, 3:22 AM EST | Winter Weather Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 8 hr |
| Dec 31, 6:38 PM EST | Winter Weather Advisory | LWX | Allegany, Baltimore, Carroll, Frederick, Washington | 6 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 | 196 |
| Tornado Warning | 16 |
| Severe Thunderstorm Watch | 23 |
| Tornado Watch | 4 |
| Mesoscale Discussion | 88 |
| Special Weather Statement | 1 |
| Flooding | |
| Areal Flood Warning | 20 |
| Flash Flood Warning | 41 |
| River Flood Warning | 7 |
| Flash Flood Watch | 22 |
| Flood Watch | 18 |
| Areal Flood Advisory | 34 |
| Winter | |
| Blizzard Warning | 1 |
| Winter Storm Warning | 22 |
| Winter Storm Watch | 17 |
| Winter Weather Advisory | 54 |
| Heat | |
| Heat Advisory | 3 |
| Cold | |
| Freeze Warning | 8 |
| Freeze Watch | 5 |
| Frost Advisory | 23 |
| Wind Chill Advisory | 12 |
| Wind and dust | |
| High Wind Warning | 6 |
| High Wind Watch | 2 |
| Wind Advisory | 33 |
| Fire | |
| Red Flag Warning | 4 |
| Fire Weather Watch | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 23 |
| Coast and beach | |
| Coastal Flood Warning | 7 |
| Coastal Flood Watch | 6 |
| Coastal Flood Advisory | 53 |
| High Surf Advisory | 10 |
| Coastal Flood Statement | 30 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Baltimore County166
- Anne Arundel County152
- Prince George's County151
- Cecil County145
- Worcester County141
- Saint Mary's County140
- City of Baltimore138
- Charles County136
- Queen Anne's County134
- Calvert County133
- Allegany County130
- Caroline County129
- Kent County127
- Talbot County125
- Frederick County123
- Carroll County121
- Washington County102
- Dorchester County102
- Wicomico County100
- Somerset County90
- Montgomery County83
- Harford County77
- Howard County75
- Garrett County35
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20082010
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.