Alert archive / Maryland / Severe Thunderstorm Warnings
Severe Thunderstorm Warnings in Maryland, 2020
354 severe thunderstorm warnings in 2020. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of severe thunderstorm warnings reaches back to 1986.
Severe Thunderstorm Warnings by county
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Severe Thunderstorm Warnings
- 354
- Busiest month
- July96 severe thunderstorm warnings
- Busiest day
- June 22, 202022 severe thunderstorm warnings
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
257 of 354 severe thunderstorm warnings covering Maryland in 2020 had a qualifying storm report inside them; 548 of 678 hail, wind and damage reports fell inside a warning, on average 23 minutes after it went out.
Maryland, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Severe thunderstorm warnings | 354 | 257 | 27% | 678 | 81% | 23 min |
Each office's whole area, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Wakefield, VA: severe thunderstorm warnings | 170 | 120 | 29% | 237 | 91% | 19 min |
| NWS Baltimore/Washington: severe thunderstorm warnings | 456 | 314 | 31% | 1,047 | 79% | 23 min |
| NWS Pittsburgh, PA: severe thunderstorm warnings | 213 | 143 | 33% | 555 | 83% | 19 min |
| NWS Philadelphia/Mount Holly: severe thunderstorm warnings | 308 | 233 | 24% | 1,626 | 89% | 26 min |
An office's figures cover every county it serves, including across state lines.
Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.
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 12, 12:57 AM EST | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Charles, Prince George's, Saint Mary's | 28 min |
| Jan 12, 1:05 AM EST | Severe Thunderstorm Warning | LWX | Anne Arundel, Prince George's | 29 min |
| Feb 7, 7:26 AM EST | Severe Thunderstorm Warning | LWX | Frederick, Montgomery | 34 min |
| Feb 7, 7:56 AM EST | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Howard, Montgomery | 34 min |
| Feb 7, 8:30 AM EST | Severe Thunderstorm Warning | LWX | Prince George's | 19 min |
| Feb 7, 8:48 AM EST | Severe Thunderstorm Warning | LWX | Calvert, Saint Mary's | 27 min |
| Feb 7, 8:49 AM EST | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 56 min |
| Feb 7, 8:52 AM EST | Severe Thunderstorm Warning | PHI | Cecil, Kent | 53 min |
| Feb 7, 8:57 AM EST | Severe Thunderstorm Warning | AKQ | Dorchester, Wicomico | 48 min |
| Feb 7, 8:59 AM EST | Severe Thunderstorm Warning | LWX | Anne Arundel | 11 min |
| Feb 7, 9:16 AM EST | Severe Thunderstorm Warning | LWX | Calvert, Saint Mary's | 13 min |
| Feb 7, 9:24 AM EST | Severe Thunderstorm Warning | PHI | Caroline | 66 min |
| Feb 7, 9:36 AM EST | Severe Thunderstorm Warning | PHI | Cecil, Kent | 39 min |
| Feb 7, 9:38 AM EST | Severe Thunderstorm Warning | AKQ | Dorchester, Somerset, Wicomico, Worcester | 67 min |
| Mar 3, 9:09 PM EST | Severe Thunderstorm Warning | PHI | Cecil | 51 min |
| Mar 3, 10:03 PM EST | Severe Thunderstorm Warning | LWX | Allegany, Washington | 27 min |
| Mar 3, 10:26 PM EST | Severe Thunderstorm Warning | LWX | Allegany, Frederick, Washington | 34 min |
| Mar 3, 10:54 PM EST | Severe Thunderstorm Warning | LWX | Carroll, Frederick, Montgomery, Washington | 36 min |
| Mar 3, 11:48 PM EST | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Montgomery, Prince George's | 42 min |
| Mar 3, 11:49 PM EST | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Harford, Howard, Montgomery, Prince George's and 1 more | 41 min |
| Mar 28, 5:38 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 37 min |
| Apr 7, 3:29 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 46 min |
| Apr 7, 4:04 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Saint Mary's | 41 min |
| Apr 7, 4:30 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester | 45 min |
| Apr 8, 12:52 AM EDT | Severe Thunderstorm Warning | LWX | Harford | 24 min |
| Apr 8, 2:29 AM EDT | Severe Thunderstorm Warning | LWX | Allegany | 61 min |
| Apr 8, 2:32 AM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 43 min |
| Apr 8, 2:50 AM EDT | Severe Thunderstorm Warning | LWX | Allegany, Washington | 55 min |
| Apr 8, 3:43 AM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick, Montgomery, Washington | 47 min |
| Apr 8, 3:53 AM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Carroll, Frederick, Harford, Howard and 1 more | 37 min |
| Apr 8, 4:22 AM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Charles, Montgomery, Prince George's, Saint Mary's | 38 min |
| Apr 9, 11:44 AM EDT | Severe Thunderstorm Warning | LWX | Frederick, Montgomery, Washington | 46 min |
| Apr 9, 11:51 AM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Frederick, Howard, Montgomery | 39 min |
| Apr 9, 12:13 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Prince George's | 47 min |
| Apr 9, 12:24 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford, City of Baltimore | 66 min |
| Apr 9, 12:29 PM EDT | Severe Thunderstorm Warning | PHI | Kent, Queen Anne's | 31 min |
| Apr 9, 12:57 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's, Talbot | 33 min |
| Apr 9, 1:12 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 48 min |
| Apr 9, 1:16 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Harford, City of Baltimore | 18 min |
| Apr 9, 11:21 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford | 28 min |
| Apr 9, 11:24 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 36 min |
| Apr 9, 11:49 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent | 41 min |
| Apr 13, 3:57 AM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 63 min |
| Apr 13, 7:37 AM EDT | Severe Thunderstorm Warning | LWX | Charles, Saint Mary's | 21 min |
| Apr 13, 11:54 AM EDT | Severe Thunderstorm Warning | LWX | Washington | 51 min |
| Apr 13, 12:42 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 48 min |
| Apr 13, 12:46 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 44 min |
| Apr 13, 1:18 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Prince George's | 42 min |
| Apr 13, 1:20 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick, Howard, Montgomery, Washington | 40 min |
| Apr 13, 1:48 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 42 min |
| Apr 13, 2:00 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Harford | 45 min |
| Apr 13, 2:01 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Howard, Montgomery | 44 min |
| Apr 13, 2:18 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Howard, Montgomery, Prince George's | 27 min |
| Apr 13, 2:24 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Howard, Montgomery, Prince George's, City of Baltimore | 51 min |
| Apr 13, 2:27 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford | 48 min |
| Apr 13, 2:35 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Montgomery, Prince George's | 40 min |
| Apr 13, 2:41 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 64 min |
| Apr 13, 2:50 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 55 min |
| Apr 21, 1:49 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 56 min |
| Apr 21, 2:04 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 56 min |
| Apr 21, 2:35 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester, Wicomico | 40 min |
| Apr 21, 2:46 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Talbot | 74 min |
| Apr 21, 3:46 PM EDT | Severe Thunderstorm Warning | AKQ | Wicomico, Worcester | 44 min |
| May 3, 11:17 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Charles, Saint Mary's | 43 min |
| May 29, 2:25 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick, Washington | 29 min |
| May 29, 2:40 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 25 min |
| May 29, 2:53 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 25 min |
| Jun 3, 12:06 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 39 min |
| Jun 3, 12:38 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 69 min |
| Jun 3, 8:47 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 28 min |
| Jun 3, 8:52 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 24 min |
| Jun 4, 4:41 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 49 min |
| Jun 4, 5:05 PM EDT | Severe Thunderstorm Warning | LWX | Allegany, Washington | 40 min |
| Jun 4, 5:20 PM EDT | Severe Thunderstorm Warning | LWX | Allegany, Washington | 40 min |
| Jun 4, 5:40 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 35 min |
| Jun 4, 6:02 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 28 min |
| Jun 4, 7:07 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 26 min |
| Jun 4, 7:28 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery, Prince George's | 47 min |
| Jun 4, 7:52 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Carroll, Howard, Montgomery, Prince George's | 38 min |
| Jun 4, 7:56 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Harford | 34 min |
| Jun 4, 8:01 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Prince George's | 44 min |
| Jun 4, 8:50 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Prince George's | 40 min |
| Jun 4, 9:30 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent, Queen Anne's | 28 min |
| Jun 4, 10:10 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Montgomery | 25 min |
| Jun 4, 10:12 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent | 33 min |
| Jun 5, 2:20 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 27 min |
| Jun 10, 3:12 PM EDT | Severe Thunderstorm Warning | LWX | Allegany, Washington | 21 min |
| Jun 10, 4:12 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 33 min |
| Jun 10, 7:02 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 43 min |
| Jun 10, 7:23 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Montgomery | 37 min |
| Jun 10, 7:45 PM EDT | Severe Thunderstorm Warning | LWX | Howard, Montgomery, Prince George's | 33 min |
| Jun 10, 9:49 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 41 min |
| Jun 10, 10:06 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick, Howard, Montgomery | 24 min |
| Jun 10, 10:24 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Frederick | 26 min |
| Jun 22, 1:14 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 46 min |
| Jun 22, 2:39 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick, Montgomery | 35 min |
| Jun 22, 3:27 PM EDT | Severe Thunderstorm Warning | LWX | Allegany, Washington | 48 min |
| Jun 22, 3:30 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 45 min |
| Jun 22, 3:41 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick | 49 min |
| Jun 22, 3:44 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Saint Mary's | 46 min |
| Jun 22, 3:44 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 46 min |
| Jun 22, 3:45 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Montgomery | 24 min |
| Jun 22, 3:53 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 37 min |
| Jun 22, 4:07 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 11 min |
| Jun 22, 4:12 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick, Howard, Montgomery | 48 min |
| Jun 22, 4:14 PM EDT | Severe Thunderstorm Warning | LWX | Frederick | 46 min |
| Jun 22, 4:27 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Saint Mary's | 48 min |
| Jun 22, 4:31 PM EDT | Severe Thunderstorm Warning | LWX | Saint Mary's | 44 min |
| Jun 22, 4:49 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Prince George's | 41 min |
| Jun 22, 4:54 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Frederick, Harford, Howard, Montgomery | 51 min |
| Jun 22, 5:00 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Howard, Montgomery, Prince George's | 45 min |
| Jun 22, 5:30 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Howard, City of Baltimore | 45 min |
| Jun 22, 5:33 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester | 31 min |
| Jun 22, 5:58 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 47 min |
| Jun 22, 6:11 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford, City of Baltimore | 30 min |
| Jun 22, 7:25 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 22 min |
| Jun 23, 5:26 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 49 min |
| Jun 23, 6:37 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, City of Baltimore | 23 min |
| Jun 23, 6:59 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford, City of Baltimore | 26 min |
| Jun 25, 4:12 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 16 min |
| Jun 25, 5:26 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Montgomery | 29 min |
| Jun 25, 6:08 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Howard, Montgomery, Prince George's | 52 min |
| Jun 25, 6:20 PM EDT | Severe Thunderstorm Warning | LWX | Howard, Montgomery, Prince George's | 40 min |
| Jun 25, 6:53 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Howard, Montgomery, Prince George's | 52 min |
| Jun 25, 8:40 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 50 min |
| Jun 27, 4:59 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent | 31 min |
| Jun 27, 5:00 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Montgomery, Prince George's | 45 min |
| Jun 27, 5:13 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 23 min |
| Jun 27, 5:30 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Prince George's | 45 min |
| Jun 27, 5:37 PM EDT | Severe Thunderstorm Warning | PHI | Kent, Queen Anne's, Talbot | 23 min |
| Jun 27, 5:40 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's | 35 min |
| Jun 28, 4:21 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Howard | 17 min |
| Jun 28, 5:33 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 42 min |
| Jun 28, 6:41 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Cecil, Kent, Queen Anne's | 34 min |
| Jun 28, 6:57 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's | 48 min |
| Jul 1, 12:29 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Saint Mary's | 46 min |
| Jul 1, 1:07 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Saint Mary's | 22 min |
| Jul 1, 3:14 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Charles, Prince George's, Saint Mary's | 17 min |
| Jul 1, 3:30 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 30 min |
| Jul 1, 3:56 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 34 min |
| Jul 1, 4:05 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 25 min |
| Jul 1, 4:15 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Prince George's | 26 min |
| Jul 4, 3:42 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Prince George's | 33 min |
| Jul 4, 4:08 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Prince George's | 37 min |
| Jul 5, 2:14 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 46 min |
| Jul 5, 3:00 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 45 min |
| Jul 5, 3:23 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford | 52 min |
| Jul 5, 3:51 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, City of Baltimore | 39 min |
| Jul 5, 4:24 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, City of Baltimore | 51 min |
| Jul 5, 5:05 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Prince George's | 40 min |
| Jul 5, 5:08 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 23 min |
| Jul 6, 5:14 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 61 min |
| Jul 6, 5:57 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Prince George's | 48 min |
| Jul 6, 6:04 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 41 min |
| Jul 6, 6:05 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford | 40 min |
| Jul 6, 6:13 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 48 min |
| Jul 6, 6:25 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 32 min |
| Jul 6, 6:28 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 47 min |
| Jul 6, 6:37 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 53 min |
| Jul 6, 6:44 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, City of Baltimore | 46 min |
| Jul 6, 6:50 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 10 min |
| Jul 6, 6:56 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 21 min |
| Jul 6, 7:03 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's | 42 min |
| Jul 6, 7:04 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Prince George's | 41 min |
| Jul 6, 7:41 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 64 min |
| Jul 6, 8:03 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 27 min |
| Jul 6, 8:20 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester, Wicomico | 40 min |
| Jul 6, 8:21 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Talbot | 39 min |
| Jul 6, 8:44 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Prince George's | 46 min |
| Jul 6, 8:53 PM EDT | Severe Thunderstorm Warning | PHI | Caroline | 37 min |
| Jul 6, 8:58 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester, Somerset, Wicomico, Worcester | 47 min |
| Jul 6, 9:04 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll | 40 min |
| Jul 6, 9:16 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 44 min |
| Jul 6, 10:14 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Charles, Prince George's, Saint Mary's | 46 min |
| Jul 6, 10:57 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Charles, Saint Mary's | 34 min |
| Jul 6, 11:27 PM EDT | Severe Thunderstorm Warning | AKQ | Somerset | 29 min |
| Jul 7, 4:49 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 41 min |
| Jul 16, 3:17 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 58 min |
| Jul 16, 4:43 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 47 min |
| Jul 16, 5:27 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 32 min |
| Jul 20, 6:00 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 45 min |
| Jul 20, 8:05 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Prince George's | 40 min |
| Jul 21, 4:26 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 37 min |
| Jul 21, 5:16 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 22 min |
| Jul 21, 7:13 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Prince George's | 47 min |
| Jul 21, 7:20 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 40 min |
| Jul 21, 7:44 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Charles, Prince George's, Saint Mary's | 61 min |
| Jul 21, 7:48 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery, Prince George's | 29 min |
| Jul 21, 7:59 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Howard, Montgomery, Prince George's | 27 min |
| Jul 21, 9:39 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Talbot | 51 min |
| Jul 21, 10:21 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's | 54 min |
| Jul 22, 2:51 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 39 min |
| Jul 22, 2:56 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 64 min |
| Jul 22, 3:17 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery, Prince George's | 58 min |
| Jul 22, 3:40 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 50 min |
| Jul 22, 3:55 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Howard, Montgomery, Prince George's | 50 min |
| Jul 22, 3:56 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford | 49 min |
| Jul 22, 4:01 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 22 min |
| Jul 22, 4:05 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Charles, Prince George's | 55 min |
| Jul 22, 4:21 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford, City of Baltimore | 39 min |
| Jul 22, 4:34 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Charles, Saint Mary's | 56 min |
| Jul 22, 4:38 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 52 min |
| Jul 22, 4:47 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's, Talbot | 43 min |
| Jul 22, 4:52 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford, City of Baltimore | 38 min |
| Jul 22, 5:12 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester | 63 min |
| Jul 22, 5:13 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent, Queen Anne's | 47 min |
| Jul 22, 5:23 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's, Talbot | 52 min |
| Jul 22, 5:54 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Cecil, Kent, Queen Anne's | 51 min |
| Jul 23, 3:24 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 36 min |
| Jul 23, 8:46 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 44 min |
| Jul 23, 9:02 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Prince George's | 25 min |
| Jul 23, 10:26 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 49 min |
| Jul 23, 11:00 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent | 45 min |
| Jul 24, 6:06 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford, City of Baltimore | 28 min |
| Jul 24, 9:32 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 28 min |
| Jul 28, 5:19 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Charles, Saint Mary's | 41 min |
| Jul 28, 5:57 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Saint Mary's | 37 min |
| Jul 28, 6:39 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester | 51 min |
| Jul 28, 6:43 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 29 min |
| Jul 28, 7:32 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester, Somerset, Wicomico | 43 min |
| Jul 28, 8:12 PM EDT | Severe Thunderstorm Warning | AKQ | Somerset, Wicomico, Worcester | 48 min |
| Jul 28, 8:38 PM EDT | Severe Thunderstorm Warning | AKQ | Wicomico, Worcester | 37 min |
| Jul 30, 5:08 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Prince George's, Saint Mary's | 38 min |
| Jul 30, 5:34 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 12 min |
| Jul 30, 6:43 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 47 min |
| Jul 30, 7:14 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Charles, Montgomery, Prince George's, Saint Mary's | 46 min |
| Jul 30, 7:42 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Prince George's | 48 min |
| Jul 30, 8:27 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Howard, Prince George's, City of Baltimore | 48 min |
| Jul 30, 8:41 PM EDT | Severe Thunderstorm Warning | PHI | Kent, Queen Anne's | 49 min |
| Jul 30, 9:08 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford, City of Baltimore | 37 min |
| Jul 30, 9:36 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 18 min |
| Aug 1, 7:40 PM EDT | Severe Thunderstorm Warning | LWX | Allegany, Washington | 50 min |
| Aug 1, 8:29 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 46 min |
| Aug 1, 9:07 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 38 min |
| Aug 1, 9:54 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 31 min |
| Aug 2, 9:47 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Saint Mary's | 43 min |
| Aug 3, 2:13 AM EDT | Severe Thunderstorm Warning | LWX | Calvert, Charles, Prince George's, Saint Mary's | 26 min |
| Aug 3, 2:55 AM EDT | Severe Thunderstorm Warning | LWX | Calvert, Saint Mary's | 23 min |
| Aug 3, 2:38 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 18 min |
| Aug 3, 2:55 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Saint Mary's | 65 min |
| Aug 3, 3:39 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Prince George's | 36 min |
| Aug 4, 8:21 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Talbot | 39 min |
| Aug 6, 4:33 AM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 42 min |
| Aug 6, 5:25 AM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 17 min |
| Aug 6, 5:36 AM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 39 min |
| Aug 6, 6:13 AM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 62 min |
| Aug 6, 7:31 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 30 min |
| Aug 6, 8:56 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Montgomery | 49 min |
| Aug 6, 9:07 PM EDT | Severe Thunderstorm Warning | LWX | Frederick | 38 min |
| Aug 7, 2:08 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 52 min |
| Aug 7, 2:48 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick | 36 min |
| Aug 7, 4:26 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 49 min |
| Aug 7, 4:53 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 27 min |
| Aug 7, 5:03 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 42 min |
| Aug 7, 5:36 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford | 39 min |
| Aug 7, 6:04 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 41 min |
| Aug 7, 6:12 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford | 48 min |
| Aug 7, 6:12 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent, Queen Anne's | 63 min |
| Aug 7, 7:04 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent, Queen Anne's | 41 min |
| Aug 12, 3:20 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 29 min |
| Aug 12, 4:54 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 36 min |
| Aug 12, 5:05 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Howard | 40 min |
| Aug 12, 5:23 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Howard, City of Baltimore | 38 min |
| Aug 19, 10:20 AM EDT | Severe Thunderstorm Warning | AKQ | Dorchester, Wicomico | 40 min |
| Aug 23, 4:23 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford | 52 min |
| Aug 23, 5:01 PM EDT | Severe Thunderstorm Warning | LWX | Frederick | 44 min |
| Aug 23, 5:29 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick, Howard, Montgomery | 46 min |
| Aug 23, 6:58 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, City of Baltimore | 47 min |
| Aug 23, 7:58 PM EDT | Severe Thunderstorm Warning | PHI | Kent | 25 min |
| Aug 23, 8:42 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 48 min |
| Aug 24, 1:39 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 39 min |
| Aug 24, 2:38 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 20 min |
| Aug 24, 2:51 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Howard, City of Baltimore | 39 min |
| Aug 24, 4:46 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Saint Mary's | 30 min |
| Aug 25, 2:26 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 23 min |
| Aug 25, 4:12 PM EDT | Severe Thunderstorm Warning | LWX | Allegany, Washington | 48 min |
| Aug 25, 4:48 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 27 min |
| Aug 25, 4:50 PM EDT | Severe Thunderstorm Warning | LWX | Allegany, Washington | 40 min |
| Aug 25, 4:52 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 38 min |
| Aug 25, 5:03 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 42 min |
| Aug 25, 5:50 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 40 min |
| Aug 25, 6:31 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent | 19 min |
| Aug 25, 7:11 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 49 min |
| Aug 25, 7:36 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 39 min |
| Aug 25, 7:51 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Prince George's | 39 min |
| Aug 25, 8:28 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's, Talbot | 47 min |
| Aug 25, 8:29 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester | 46 min |
| Aug 25, 9:08 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester, Somerset, Wicomico | 52 min |
| Aug 25, 9:12 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Talbot | 48 min |
| Aug 25, 9:47 PM EDT | Severe Thunderstorm Warning | AKQ | Somerset, Wicomico, Worcester | 43 min |
| Aug 27, 2:51 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 39 min |
| Aug 27, 6:25 PM EDT | Severe Thunderstorm Warning | PHI | Kent, Queen Anne's, Talbot | 50 min |
| Aug 27, 7:25 PM EDT | Severe Thunderstorm Warning | PHI | Caroline | 35 min |
| Aug 27, 7:40 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 65 min |
| Aug 27, 8:30 PM EDT | Severe Thunderstorm Warning | LWX | Allegany | 15 min |
| Aug 27, 8:42 PM EDT | Severe Thunderstorm Warning | PBZ | Garrett | 48 min |
| Aug 28, 1:51 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 24 min |
| Aug 28, 1:53 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent | 52 min |
| Aug 28, 2:40 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent | 50 min |
| Aug 28, 3:02 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 43 min |
| Aug 28, 3:07 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Frederick, Howard, Montgomery | 38 min |
| Aug 28, 3:19 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Frederick, Harford | 41 min |
| Aug 28, 3:45 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll | 21 min |
| Aug 28, 4:01 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 44 min |
| Aug 28, 4:02 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford | 43 min |
| Aug 28, 4:33 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Frederick, Howard, Montgomery, Prince George's | 42 min |
| Aug 28, 4:39 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent, Queen Anne's | 66 min |
| Aug 28, 5:45 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery, Prince George's | 45 min |
| Aug 28, 6:17 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 43 min |
| Aug 28, 6:17 PM EDT | Severe Thunderstorm Warning | PHI | Caroline | 43 min |
| Aug 28, 6:55 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Prince George's | 33 min |
| Aug 28, 7:41 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Charles, Prince George's, Saint Mary's | 49 min |
| Aug 28, 8:19 PM EDT | Severe Thunderstorm Warning | LWX | Saint Mary's | 26 min |
| Aug 29, 1:27 AM EDT | Severe Thunderstorm Warning | AKQ | Somerset, Worcester | 48 min |
| Aug 29, 1:35 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester | 40 min |
| Aug 29, 8:12 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Saint Mary's | 48 min |
| Sep 2, 6:17 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick, Washington | 43 min |
| Sep 2, 6:32 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 43 min |
| Sep 2, 6:54 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick | 51 min |
| Sep 2, 7:06 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Howard, Montgomery | 39 min |
| Sep 2, 7:36 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Harford, Howard | 39 min |
| Sep 2, 7:38 PM EDT | Severe Thunderstorm Warning | LWX | Howard, Montgomery | 33 min |
| Sep 2, 8:02 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 43 min |
| Sep 2, 8:07 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 53 min |
| Sep 2, 8:45 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 9 min |
| Sep 2, 8:47 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 58 min |
| Sep 2, 10:08 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's, Talbot | 67 min |
| Sep 3, 3:30 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Washington | 45 min |
| Sep 3, 3:41 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick, Howard, Montgomery | 49 min |
| Sep 3, 4:07 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 38 min |
| Sep 3, 4:31 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Howard, City of Baltimore | 44 min |
| Sep 3, 4:36 PM EDT | Severe Thunderstorm Warning | LWX | Howard, Montgomery, Prince George's | 54 min |
| Sep 3, 5:16 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Prince George's | 59 min |
| Sep 3, 5:27 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Montgomery, Prince George's | 63 min |
| Sep 3, 5:47 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 73 min |
| Sep 3, 6:48 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Talbot | 57 min |
| Nov 15, 3:38 PM EST | Severe Thunderstorm Warning | LWX | Allegany, Garrett | 55 min |
| Nov 15, 4:56 PM EST | Severe Thunderstorm Warning | LWX | Frederick, Washington | 64 min |
| Nov 15, 4:58 PM EST | Severe Thunderstorm Warning | LWX | Allegany, Garrett, Washington | 47 min |
| Nov 15, 5:37 PM EST | Severe Thunderstorm Warning | LWX | Carroll, Frederick | 68 min |
| Nov 15, 6:22 PM EST | Severe Thunderstorm Warning | LWX | Montgomery | 53 min |
| Nov 15, 6:28 PM EST | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Carroll, Harford, Howard, City of Baltimore | 92 min |
| Nov 15, 6:54 PM EST | Severe Thunderstorm Warning | LWX | Cecil | 66 min |
| Nov 15, 7:20 PM EST | Severe Thunderstorm Warning | LWX | Anne Arundel, Prince George's | 40 min |
| Nov 15, 7:28 PM EST | Severe Thunderstorm Warning | LWX | Anne Arundel, Charles, Prince George's | 47 min |
| Nov 15, 7:40 PM EST | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 80 min |
| Nov 15, 8:16 PM EST | Severe Thunderstorm Warning | LWX | Calvert, Charles, Prince George's, Saint Mary's | 59 min |
| Nov 15, 8:42 PM EST | Severe Thunderstorm Warning | AKQ | Dorchester, Wicomico | 63 min |
| Nov 15, 8:57 PM EST | Severe Thunderstorm Warning | PHI | Caroline, Talbot | 63 min |
| Nov 30, 1:28 PM EST | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Charles, Prince George's | 28 min |
| Nov 30, 2:22 PM EST | Severe Thunderstorm Warning | LWX | Cecil, Harford | 38 min |
| Nov 30, 3:04 PM EST | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's | 56 min |
| Dec 24, 3:36 PM EST | Severe Thunderstorm Warning | LWX | Charles | 39 min |
| Dec 25, 12:31 AM EST | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 44 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Prince George's County68
- Montgomery County58
- Anne Arundel County52
- Baltimore County46
- Frederick County44
- Charles County42
- Cecil County40
- Washington County38
- Kent County36
- Harford County36
- Howard County35
- Caroline County33
- Carroll County32
- Queen Anne's County31
- Saint Mary's County30
- Calvert County29
- Allegany County29
- Talbot County24
- City of Baltimore22
- Dorchester County15
- Wicomico County13
- Garrett County10
- Somerset County8
- Worcester County7
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20192021
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.