Alert archive / New Jersey / Severe Thunderstorm Warnings
Severe Thunderstorm Warnings in New Jersey, 2023
229 severe thunderstorm warnings in 2023. 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 2023. Tap one for its archive.
- Severe Thunderstorm Warnings
- 229
- Busiest month
- July80 severe thunderstorm warnings
- Busiest day
- September 8, 202321 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.
125 of 229 severe thunderstorm warnings covering New Jersey in 2023 had a qualifying storm report inside them; 249 of 301 hail, wind and damage reports fell inside a warning, on average 23 minutes after it went out.
New Jersey, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Severe thunderstorm warnings | 229 | 125 | 45% | 301 | 83% | 23 min |
Each office's whole area, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Philadelphia/Mount Holly: severe thunderstorm warnings | 364 | 198 | 46% | 662 | 84% | 22 min |
| NWS New York, NY: severe thunderstorm warnings | 76 | 50 | 34% | 145 | 76% | 23 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 |
|---|---|---|---|---|
| Feb 21, 3:15 PM EST | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer, Middlesex, Somerset | 45 min |
| Feb 21, 4:00 PM EST | Severe Thunderstorm Warning | PHI | Monmouth | 13 min |
| Feb 21, 4:42 PM EST | Severe Thunderstorm Warning | PHI | Ocean | 27 min |
| Apr 1, 5:53 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Morris, Warren | 67 min |
| Apr 1, 6:31 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer, Middlesex, Morris, Somerset | 44 min |
| Apr 1, 6:37 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Gloucester, Mercer, Middlesex, Monmouth | 53 min |
| Apr 1, 6:39 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Gloucester, Salem | 51 min |
| Apr 1, 7:11 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Gloucester, Mercer, Middlesex and 2 more | 64 min |
| Apr 1, 7:24 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Cape May, Cumberland, Gloucester, Salem | 51 min |
| Apr 1, 7:52 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Cape May, Cumberland, Ocean | 38 min |
| Apr 15, 1:34 PM EDT | Severe Thunderstorm Warning | PHI | Warren | 26 min |
| Apr 15, 1:49 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 26 min |
| Apr 15, 1:58 PM EDT | Severe Thunderstorm Warning | PHI | Warren | 32 min |
| Apr 15, 3:29 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Gloucester | 31 min |
| Apr 15, 4:05 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Mercer | 25 min |
| Apr 15, 4:49 PM EDT | Severe Thunderstorm Warning | PHI | Mercer, Middlesex, Somerset | 26 min |
| Apr 15, 4:56 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon | 14 min |
| Apr 22, 4:52 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Sussex, Warren | 38 min |
| Apr 22, 6:11 PM EDT | Severe Thunderstorm Warning | PHI | Sussex, Warren | 49 min |
| Apr 22, 6:32 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Hunterdon, Mercer | 28 min |
| Apr 22, 6:51 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden | 39 min |
| Apr 22, 7:11 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 12 min |
| Apr 22, 7:24 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Morris, Somerset, Sussex, Warren | 16 min |
| Apr 22, 8:07 PM EDT | Severe Thunderstorm Warning | PHI | Morris, Sussex | 23 min |
| Apr 22, 8:16 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex, Monmouth, Ocean | 33 min |
| Apr 22, 8:26 PM EDT | Severe Thunderstorm Warning | OKX | Passaic | 49 min |
| Apr 22, 8:29 PM EDT | Severe Thunderstorm Warning | PHI | Morris | 19 min |
| Jun 2, 12:49 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 26 min |
| Jun 2, 6:02 PM EDT | Severe Thunderstorm Warning | OKX | Bergen, Hudson | 37 min |
| Jun 2, 7:33 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Mercer | 42 min |
| Jun 2, 7:50 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Gloucester | 40 min |
| Jun 6, 5:35 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Gloucester | 25 min |
| Jun 6, 5:48 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic | 42 min |
| Jun 14, 4:18 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Ocean | 27 min |
| Jun 14, 4:40 PM EDT | Severe Thunderstorm Warning | PHI | Ocean | 35 min |
| Jun 16, 11:04 AM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Cape May | 41 min |
| Jun 16, 11:20 AM EDT | Severe Thunderstorm Warning | PHI | Gloucester, Salem | 40 min |
| Jun 16, 11:46 AM EDT | Severe Thunderstorm Warning | PHI | Camden, Gloucester, Salem | 59 min |
| Jun 16, 11:58 AM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Hunterdon, Mercer | 47 min |
| Jun 16, 12:25 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 2 more | 65 min |
| Jun 16, 12:41 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Mercer, Middlesex, Monmouth, Ocean | 49 min |
| Jun 16, 1:15 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Cape May, Cumberland, Mercer, Middlesex and 2 more | 60 min |
| Jun 17, 3:40 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Somerset, Warren | 31 min |
| Jun 17, 4:19 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex, Monmouth, Somerset | 22 min |
| Jun 25, 12:32 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Ocean | 28 min |
| Jun 25, 4:05 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden | 25 min |
| Jun 25, 4:57 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden | 33 min |
| Jun 25, 5:13 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Gloucester | 32 min |
| Jun 25, 5:43 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Gloucester | 32 min |
| Jun 25, 6:26 PM EDT | Severe Thunderstorm Warning | PHI | Burlington | 34 min |
| Jun 25, 6:31 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex, Morris, Somerset | 29 min |
| Jun 25, 6:53 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Monmouth, Ocean | 37 min |
| Jun 26, 9:18 AM EDT | Severe Thunderstorm Warning | PHI | Warren | 42 min |
| Jun 26, 9:47 AM EDT | Severe Thunderstorm Warning | PHI | Morris, Sussex, Warren | 43 min |
| Jun 26, 10:32 AM EDT | Severe Thunderstorm Warning | OKX | Essex, Hudson | 24 min |
| Jun 26, 11:14 AM EDT | Severe Thunderstorm Warning | OKX | Bergen, Hudson | 29 min |
| Jun 26, 11:57 AM EDT | Severe Thunderstorm Warning | PHI | Sussex | 18 min |
| Jun 26, 2:49 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Morris, Somerset, Warren | 41 min |
| Jun 26, 2:58 PM EDT | Severe Thunderstorm Warning | PHI | Sussex, Warren | 47 min |
| Jun 26, 3:04 PM EDT | Severe Thunderstorm Warning | PHI | Morris, Somerset | 41 min |
| Jun 26, 3:28 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden | 32 min |
| Jun 26, 3:33 PM EDT | Severe Thunderstorm Warning | OKX | Essex, Hudson, Union | 27 min |
| Jun 26, 3:40 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Morris, Somerset, Sussex | 50 min |
| Jun 26, 3:48 PM EDT | Severe Thunderstorm Warning | PHI | Burlington | 42 min |
| Jun 26, 4:13 PM EDT | Severe Thunderstorm Warning | OKX | Bergen, Essex, Passaic | 47 min |
| Jun 26, 5:05 PM EDT | Severe Thunderstorm Warning | OKX | Essex, Union | 25 min |
| Jun 26, 5:09 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Salem | 25 min |
| Jun 26, 5:09 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex, Morris, Somerset | 39 min |
| Jun 26, 8:42 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer, Middlesex, Somerset | 48 min |
| Jun 26, 9:31 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer, Middlesex, Somerset | 44 min |
| Jun 26, 9:51 PM EDT | Severe Thunderstorm Warning | PHI | Gloucester, Salem | 54 min |
| Jun 26, 10:26 PM EDT | Severe Thunderstorm Warning | PHI | Morris | 16 min |
| Jun 26, 10:33 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Gloucester, Salem | 42 min |
| Jun 26, 11:07 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Hunterdon, Mercer, Middlesex, Monmouth and 1 more | 53 min |
| Jun 26, 11:42 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer, Middlesex, Somerset | 33 min |
| Jun 27, 3:05 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Salem | 40 min |
| Jun 27, 3:38 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Salem | 52 min |
| Jun 27, 3:41 PM EDT | Severe Thunderstorm Warning | PHI | Salem | 22 min |
| Jun 27, 4:21 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Salem | 39 min |
| Jun 27, 4:33 PM EDT | Severe Thunderstorm Warning | PHI | Warren | 42 min |
| Jun 27, 4:36 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Salem | 26 min |
| Jun 27, 4:39 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer | 51 min |
| Jun 27, 5:01 PM EDT | Severe Thunderstorm Warning | PHI | Morris, Warren | 44 min |
| Jun 27, 5:22 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden | 38 min |
| Jun 27, 5:23 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Gloucester, Salem | 32 min |
| Jun 27, 6:08 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden | 25 min |
| Jun 27, 6:46 PM EDT | Severe Thunderstorm Warning | PHI | Morris | 44 min |
| Jul 2, 4:01 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Cumberland, Gloucester, Salem | 29 min |
| Jul 2, 4:57 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Ocean | 29 min |
| Jul 2, 11:13 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex, Morris, Somerset | 32 min |
| Jul 2, 11:19 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer | 41 min |
| Jul 2, 11:27 PM EDT | Severe Thunderstorm Warning | OKX | Bergen, Essex, Hudson, Union | 35 min |
| Jul 3, 8:27 PM EDT | Severe Thunderstorm Warning | PHI | Cape May | 48 min |
| Jul 3, 8:41 PM EDT | Severe Thunderstorm Warning | PHI | Gloucester, Salem | 49 min |
| Jul 3, 8:58 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Cape May, Cumberland | 47 min |
| Jul 3, 9:25 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Gloucester, Salem | 35 min |
| Jul 3, 9:52 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Gloucester, Salem | 38 min |
| Jul 4, 3:22 PM EDT | Severe Thunderstorm Warning | PHI | Mercer, Middlesex, Monmouth, Ocean | 38 min |
| Jul 4, 3:45 PM EDT | Severe Thunderstorm Warning | PHI | Morris, Sussex | 45 min |
| Jul 4, 3:52 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Mercer, Middlesex, Monmouth, Ocean | 38 min |
| Jul 4, 4:24 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Monmouth, Ocean | 36 min |
| Jul 4, 4:26 PM EDT | Severe Thunderstorm Warning | PHI | Morris, Sussex, Warren | 23 min |
| Jul 4, 4:59 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Gloucester, Ocean | 46 min |
| Jul 4, 5:30 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Warren | 33 min |
| Jul 4, 5:44 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Gloucester | 46 min |
| Jul 4, 6:29 PM EDT | Severe Thunderstorm Warning | PHI | Camden, Gloucester | 21 min |
| Jul 5, 5:26 PM EDT | Severe Thunderstorm Warning | PHI | Camden, Gloucester | 34 min |
| Jul 5, 5:57 PM EDT | Severe Thunderstorm Warning | PHI | Camden, Gloucester | 33 min |
| Jul 5, 6:30 PM EDT | Severe Thunderstorm Warning | PHI | Gloucester | 30 min |
| Jul 8, 2:19 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex, Monmouth | 41 min |
| Jul 8, 2:59 PM EDT | Severe Thunderstorm Warning | OKX | Bergen | 46 min |
| Jul 9, 5:10 PM EDT | Severe Thunderstorm Warning | PHI | Gloucester, Salem | 50 min |
| Jul 9, 5:35 PM EDT | Severe Thunderstorm Warning | PHI | Camden, Gloucester, Salem | 25 min |
| Jul 13, 8:53 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 67 min |
| Jul 13, 9:57 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 48 min |
| Jul 14, 5:54 AM EDT | Severe Thunderstorm Warning | PHI | Burlington, Mercer, Middlesex, Somerset | 51 min |
| Jul 14, 6:20 AM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer, Morris, Somerset | 40 min |
| Jul 14, 6:40 AM EDT | Severe Thunderstorm Warning | PHI | Middlesex, Somerset | 50 min |
| Jul 14, 6:55 AM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Middlesex, Morris, Somerset, Sussex, Warren | 50 min |
| Jul 14, 6:58 AM EDT | Severe Thunderstorm Warning | OKX | Essex, Hudson, Union | 32 min |
| Jul 14, 7:27 AM EDT | Severe Thunderstorm Warning | PHI | Morris, Sussex | 18 min |
| Jul 14, 6:22 PM EDT | Severe Thunderstorm Warning | PHI | Warren | 38 min |
| Jul 14, 6:26 PM EDT | Severe Thunderstorm Warning | PHI | Sussex, Warren | 49 min |
| Jul 14, 6:36 PM EDT | Severe Thunderstorm Warning | OKX | Passaic | 22 min |
| Jul 14, 6:52 PM EDT | Severe Thunderstorm Warning | PHI | Sussex, Warren | 53 min |
| Jul 14, 7:03 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 41 min |
| Jul 14, 9:57 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex, Morris, Somerset | 41 min |
| Jul 14, 10:10 PM EDT | Severe Thunderstorm Warning | OKX | Essex, Union | 21 min |
| Jul 15, 3:22 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex, Somerset | 38 min |
| Jul 15, 3:40 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Salem | 65 min |
| Jul 15, 4:08 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer, Somerset | 67 min |
| Jul 15, 5:12 PM EDT | Severe Thunderstorm Warning | PHI | Mercer, Middlesex | 63 min |
| Jul 15, 5:45 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Morris, Sussex, Warren | 45 min |
| Jul 15, 5:49 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex, Monmouth | 41 min |
| Jul 21, 3:10 AM EDT | Severe Thunderstorm Warning | PHI | Warren | 39 min |
| Jul 21, 5:43 AM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Camden, Cumberland, Gloucester, Salem | 47 min |
| Jul 21, 6:16 AM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Cape May, Cumberland | 44 min |
| Jul 21, 6:52 AM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Cape May, Ocean | 23 min |
| Jul 21, 7:14 AM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Ocean | 46 min |
| Jul 25, 1:06 PM EDT | Severe Thunderstorm Warning | PHI | Warren | 39 min |
| Jul 25, 1:27 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer, Somerset | 48 min |
| Jul 25, 2:06 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Morris, Somerset, Sussex, Warren | 39 min |
| Jul 25, 2:08 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer, Middlesex, Somerset | 52 min |
| Jul 25, 2:20 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland | 55 min |
| Jul 25, 2:34 PM EDT | Severe Thunderstorm Warning | OKX | Bergen, Essex, Hudson, Passaic, Union | 56 min |
| Jul 25, 2:39 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex, Morris, Somerset, Sussex | 51 min |
| Jul 25, 2:53 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex, Monmouth, Somerset | 52 min |
| Jul 25, 3:12 PM EDT | Severe Thunderstorm Warning | OKX | Essex, Hudson, Union | 63 min |
| Jul 25, 3:16 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Mercer | 44 min |
| Jul 25, 3:40 PM EDT | Severe Thunderstorm Warning | PHI | Monmouth, Ocean | 50 min |
| Jul 25, 3:52 PM EDT | Severe Thunderstorm Warning | PHI | Cape May, Cumberland | 53 min |
| Jul 25, 3:58 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Gloucester, Salem | 30 min |
| Jul 27, 6:17 PM EDT | Severe Thunderstorm Warning | PHI | Morris, Sussex, Warren | 43 min |
| Jul 28, 8:04 PM EDT | Severe Thunderstorm Warning | PHI | Salem | 41 min |
| Jul 29, 12:43 AM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Cape May, Cumberland | 47 min |
| Jul 29, 4:55 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Gloucester, Salem | 50 min |
| Jul 29, 5:38 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Camden, Cumberland, Gloucester, Salem | 52 min |
| Jul 29, 5:44 PM EDT | Severe Thunderstorm Warning | PHI | Salem | 46 min |
| Jul 29, 6:07 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Cape May, Cumberland, Salem | 68 min |
| Jul 29, 6:13 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer, Middlesex, Monmouth, Somerset | 47 min |
| Jul 29, 6:26 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Gloucester, Salem | 49 min |
| Jul 29, 6:28 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Ocean | 47 min |
| Jul 29, 6:33 PM EDT | Severe Thunderstorm Warning | PHI | Cape May | 42 min |
| Jul 29, 6:41 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer, Middlesex, Monmouth, Somerset | 49 min |
| Jul 29, 6:46 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Gloucester | 44 min |
| Jul 29, 7:19 PM EDT | Severe Thunderstorm Warning | PHI | Monmouth | 26 min |
| Jul 29, 7:54 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Monmouth, Ocean | 40 min |
| Aug 7, 5:37 PM EDT | Severe Thunderstorm Warning | PHI | Salem | 53 min |
| Aug 7, 6:21 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Gloucester, Hunterdon, Mercer, Salem | 69 min |
| Aug 7, 6:58 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Camden, Cape May, Cumberland, Gloucester, Salem | 62 min |
| Aug 7, 7:20 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Gloucester, Hunterdon, Mercer and 4 more | 58 min |
| Aug 7, 7:27 PM EDT | Severe Thunderstorm Warning | PHI | Warren | 48 min |
| Aug 10, 2:15 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Gloucester | 30 min |
| Aug 10, 2:24 PM EDT | Severe Thunderstorm Warning | PHI | Camden, Gloucester, Salem | 36 min |
| Aug 10, 2:43 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden | 32 min |
| Aug 10, 2:57 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden | 33 min |
| Aug 12, 1:45 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden | 25 min |
| Aug 12, 1:52 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Gloucester | 38 min |
| Aug 12, 7:29 PM EDT | Severe Thunderstorm Warning | OKX | Passaic | 44 min |
| Aug 12, 7:30 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 19 min |
| Aug 13, 1:10 AM EDT | Severe Thunderstorm Warning | PHI | Burlington, Hunterdon, Mercer, Middlesex, Monmouth, Somerset | 50 min |
| Aug 13, 1:38 AM EDT | Severe Thunderstorm Warning | OKX | Bergen, Essex, Hudson, Passaic, Union | 67 min |
| Aug 13, 1:41 AM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Middlesex, Morris, Somerset | 33 min |
| Aug 13, 2:15 AM EDT | Severe Thunderstorm Warning | OKX | Bergen, Hudson | 60 min |
| Aug 15, 4:57 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Warren | 30 min |
| Sep 7, 2:10 PM EDT | Severe Thunderstorm Warning | PHI | Warren | 50 min |
| Sep 7, 2:52 PM EDT | Severe Thunderstorm Warning | PHI | Warren | 24 min |
| Sep 7, 5:57 PM EDT | Severe Thunderstorm Warning | PHI | Warren | 34 min |
| Sep 7, 6:30 PM EDT | Severe Thunderstorm Warning | PHI | Morris, Sussex, Warren | 45 min |
| Sep 7, 7:02 PM EDT | Severe Thunderstorm Warning | OKX | Passaic | 43 min |
| Sep 7, 7:11 PM EDT | Severe Thunderstorm Warning | PHI | Morris | 34 min |
| Sep 7, 7:41 PM EDT | Severe Thunderstorm Warning | OKX | Bergen, Passaic | 15 min |
| Sep 8, 1:46 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Ocean | 44 min |
| Sep 8, 1:54 PM EDT | Severe Thunderstorm Warning | PHI | Monmouth, Ocean | 51 min |
| Sep 8, 2:27 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex, Monmouth | 48 min |
| Sep 8, 2:28 PM EDT | Severe Thunderstorm Warning | OKX | Bergen | 47 min |
| Sep 8, 2:30 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Middlesex, Monmouth, Ocean | 45 min |
| Sep 8, 2:31 PM EDT | Severe Thunderstorm Warning | OKX | Hudson, Union | 44 min |
| Sep 8, 2:45 PM EDT | Severe Thunderstorm Warning | OKX | Bergen | 45 min |
| Sep 8, 2:45 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Ocean | 45 min |
| Sep 8, 2:53 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Mercer, Middlesex, Monmouth, Somerset | 52 min |
| Sep 8, 3:04 PM EDT | Severe Thunderstorm Warning | OKX | Essex, Union | 41 min |
| Sep 8, 3:27 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Mercer, Monmouth, Ocean | 63 min |
| Sep 8, 3:31 PM EDT | Severe Thunderstorm Warning | OKX | Bergen | 44 min |
| Sep 8, 3:31 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Salem | 44 min |
| Sep 8, 3:36 PM EDT | Severe Thunderstorm Warning | PHI | Morris | 30 min |
| Sep 8, 4:24 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon | 51 min |
| Sep 8, 4:27 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Ocean | 51 min |
| Sep 8, 4:30 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Mercer, Monmouth, Ocean | 60 min |
| Sep 8, 4:50 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Morris, Somerset, Sussex, Warren | 40 min |
| Sep 8, 5:14 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon | 46 min |
| Sep 8, 5:34 PM EDT | Severe Thunderstorm Warning | PHI | Warren | 41 min |
| Sep 8, 5:49 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 41 min |
| Sep 8, 10:17 PM EDT | Severe Thunderstorm Warning | PHI | Gloucester, Salem | 43 min |
| Sep 8, 10:58 PM EDT | Severe Thunderstorm Warning | PHI | Camden, Gloucester | 47 min |
| Sep 9, 12:56 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Ocean | 64 min |
| Sep 9, 12:57 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Ocean | 50 min |
| Sep 9, 2:42 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex, Monmouth, Somerset | 48 min |
| Sep 9, 2:56 PM EDT | Severe Thunderstorm Warning | OKX | Bergen, Hudson | 29 min |
| Sep 9, 3:09 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex, Somerset | 49 min |
| Sep 9, 3:32 PM EDT | Severe Thunderstorm Warning | OKX | Union | 17 min |
| Sep 9, 3:34 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Gloucester | 56 min |
| Sep 9, 3:44 PM EDT | Severe Thunderstorm Warning | OKX | Bergen, Essex, Passaic, Union | 45 min |
| Sep 9, 3:47 PM EDT | Severe Thunderstorm Warning | PHI | Morris | 43 min |
| Sep 9, 4:08 PM EDT | Severe Thunderstorm Warning | PHI | Morris, Somerset, Sussex | 53 min |
| Sep 9, 4:37 PM EDT | Severe Thunderstorm Warning | PHI | Morris, Sussex, Warren | 53 min |
| Sep 9, 4:57 PM EDT | Severe Thunderstorm Warning | PHI | Sussex, Warren | 49 min |
| Sep 9, 5:18 PM EDT | Severe Thunderstorm Warning | PHI | Sussex, Warren | 45 min |
| Sep 11, 6:10 PM EDT | Severe Thunderstorm Warning | PHI | Monmouth | 35 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Burlington County60
- Camden County45
- Gloucester County42
- Middlesex County39
- Somerset County38
- Hunterdon County35
- Warren County35
- Salem County35
- Mercer County34
- Morris County33
- Sussex County32
- Ocean County31
- Monmouth County30
- Cumberland County25
- Atlantic County25
- Cape May County14
- Bergen County14
- Hudson County12
- Essex County12
- Union County12
- Passaic County9
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20222024
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.