Alert archive / New Jersey / Severe Thunderstorm Warnings

Severe Thunderstorm Warnings in New Jersey, 2019

274 severe thunderstorm warnings in 2019. 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 2019. Tap one for its archive.

Severe Thunderstorm Warnings: 274
Busiest month: July92 severe thunderstorm warnings
Busiest day: August 7, 201931 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.

182 of 274 severe thunderstorm warnings covering New Jersey in 2019 had a qualifying storm report inside them; 463 of 531 hail, wind and damage reports fell inside a warning, on average 25 minutes after it went out.

New Jersey, 2019

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Severe thunderstorm warnings	274	182	34%	531	87%	25 min

Each office's whole area, 2019

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Philadelphia/Mount Holly: severe thunderstorm warnings	410	276	33%	1,175	87%	25 min
NWS New York, NY: severe thunderstorm warnings	91	61	33%	238	78%	20 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
Mar 15, 7:11 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Warren	49 min
Mar 15, 7:23 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon	52 min
Mar 15, 7:45 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Somerset	45 min
Mar 15, 8:08 PM EDT	Severe Thunderstorm Warning	OKX	Bergen, Passaic	37 min
Apr 15, 2:46 AM EDT	Severe Thunderstorm Warning	PHI	Gloucester, Salem	44 min
Apr 15, 3:03 AM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Warren	20 min
Apr 15, 3:07 AM EDT	Severe Thunderstorm Warning	PHI	Camden, Cumberland, Gloucester, Salem	38 min
Apr 15, 3:27 AM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Mercer, Morris, Somerset	32 min
Apr 15, 3:39 AM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Gloucester, Mercer, Middlesex, Monmouth and 2 more	37 min
Apr 15, 3:41 AM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 2 more	64 min
Apr 15, 3:57 AM EDT	Severe Thunderstorm Warning	PHI	Middlesex, Morris, Somerset	13 min
Apr 15, 4:08 AM EDT	Severe Thunderstorm Warning	OKX	Bergen, Essex, Hudson, Passaic, Union	37 min
Apr 26, 4:28 PM EDT	Severe Thunderstorm Warning	PHI	Cumberland, Gloucester, Salem	47 min
Apr 26, 5:07 PM EDT	Severe Thunderstorm Warning	PHI	Camden, Cumberland, Gloucester, Salem	38 min
Apr 26, 5:37 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 1 more	38 min
Apr 26, 5:44 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Hunterdon, Mercer	61 min
May 19, 7:52 PM EDT	Severe Thunderstorm Warning	PHI	Morris, Sussex, Warren	53 min
May 19, 8:07 PM EDT	Severe Thunderstorm Warning	OKX	Bergen, Passaic	53 min
May 19, 9:46 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Mercer, Morris, Somerset, Warren	44 min
May 19, 10:27 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Mercer, Middlesex, Monmouth, Morris, Ocean and 1 more	48 min
May 19, 11:41 PM EDT	Severe Thunderstorm Warning	PHI	Warren	53 min
May 23, 11:22 PM EDT	Severe Thunderstorm Warning	PHI	Camden, Gloucester, Salem	38 min
May 26, 5:29 PM EDT	Severe Thunderstorm Warning	OKX	Bergen, Passaic	28 min
May 26, 5:47 PM EDT	Severe Thunderstorm Warning	OKX	Bergen, Hudson	24 min
May 28, 6:11 PM EDT	Severe Thunderstorm Warning	PHI	Cumberland, Salem	64 min
May 28, 6:52 PM EDT	Severe Thunderstorm Warning	PHI	Camden, Gloucester, Salem	38 min
May 28, 6:59 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Cumberland, Gloucester, Salem	61 min
May 28, 7:20 PM EDT	Severe Thunderstorm Warning	PHI	Cumberland, Salem	40 min
May 28, 7:39 PM EDT	Severe Thunderstorm Warning	PHI	Morris, Sussex, Warren	66 min
May 28, 7:53 PM EDT	Severe Thunderstorm Warning	PHI	Cape May, Cumberland, Salem	52 min
May 28, 8:35 PM EDT	Severe Thunderstorm Warning	PHI	Cape May, Cumberland	55 min
May 28, 8:37 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Gloucester	25 min
May 28, 8:44 PM EDT	Severe Thunderstorm Warning	PHI	Morris, Somerset, Sussex, Warren	61 min
May 28, 8:48 PM EDT	Severe Thunderstorm Warning	OKX	Essex, Hudson, Union	57 min
May 28, 9:52 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth, Ocean	23 min
May 28, 11:07 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Ocean	38 min
May 28, 11:35 PM EDT	Severe Thunderstorm Warning	PHI	Ocean	25 min
May 29, 3:10 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Warren	65 min
May 29, 3:43 PM EDT	Severe Thunderstorm Warning	PHI	Sussex, Warren	47 min
May 29, 4:04 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Mercer, Middlesex, Monmouth, Somerset	41 min
May 29, 4:09 PM EDT	Severe Thunderstorm Warning	PHI	Warren	51 min
May 29, 4:13 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Warren	47 min
May 29, 4:16 PM EDT	Severe Thunderstorm Warning	PHI	Warren	27 min
May 29, 4:37 PM EDT	Severe Thunderstorm Warning	PHI	Mercer, Middlesex, Monmouth, Ocean	53 min
May 29, 4:53 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Mercer	67 min
May 29, 5:23 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Sussex, Warren	34 min
May 29, 5:39 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Hunterdon, Mercer, Middlesex, Monmouth, Ocean and 1 more	66 min
May 29, 6:06 PM EDT	Severe Thunderstorm Warning	PHI	Burlington	24 min
May 29, 6:29 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Gloucester, Ocean	61 min
May 29, 7:08 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Camden, Cumberland, Gloucester, Salem	52 min
May 29, 7:33 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Cape May, Cumberland, Ocean	42 min
May 30, 4:36 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Mercer, Monmouth, Ocean	39 min
May 30, 4:40 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Warren	50 min
May 30, 4:48 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Warren	42 min
May 30, 5:20 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Middlesex, Morris, Somerset, Warren	40 min
May 30, 5:32 PM EDT	Severe Thunderstorm Warning	PHI	Cape May	43 min
May 30, 5:55 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Middlesex, Morris, Somerset	31 min
Jun 2, 3:21 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden	39 min
Jun 2, 4:34 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth, Ocean	20 min
Jun 2, 4:37 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Ocean	38 min
Jun 2, 6:43 PM EDT	Severe Thunderstorm Warning	PHI	Cumberland, Gloucester, Salem	47 min
Jun 2, 7:11 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon	49 min
Jun 2, 7:14 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Cumberland, Gloucester, Salem	46 min
Jun 2, 7:51 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Cumberland, Gloucester, Salem	39 min
Jun 2, 8:13 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Monmouth, Ocean	44 min
Jun 2, 9:07 PM EDT	Severe Thunderstorm Warning	PHI	Middlesex, Morris, Somerset	24 min
Jun 2, 9:10 PM EDT	Severe Thunderstorm Warning	OKX	Bergen, Essex, Hudson, Passaic, Union	35 min
Jun 2, 9:14 PM EDT	Severe Thunderstorm Warning	PHI	Middlesex, Monmouth	31 min
Jun 2, 9:32 PM EDT	Severe Thunderstorm Warning	OKX	Bergen, Hudson	43 min
Jun 5, 5:33 PM EDT	Severe Thunderstorm Warning	PHI	Cape May	42 min
Jun 16, 9:17 PM EDT	Severe Thunderstorm Warning	PHI	Cumberland	28 min
Jun 16, 9:38 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Cape May, Cumberland	33 min
Jun 17, 1:09 AM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Cumberland, Gloucester, Salem	36 min
Jun 17, 1:26 AM EDT	Severe Thunderstorm Warning	PHI	Atlantic	31 min
Jun 17, 2:07 AM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Ocean	23 min
Jun 17, 2:35 AM EDT	Severe Thunderstorm Warning	PHI	Burlington, Ocean	40 min
Jun 18, 2:06 PM EDT	Severe Thunderstorm Warning	PHI	Middlesex, Monmouth, Somerset	54 min
Jun 20, 2:33 PM EDT	Severe Thunderstorm Warning	PHI	Gloucester, Salem	57 min
Jun 20, 4:06 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Mercer, Middlesex, Monmouth, Ocean	54 min
Jun 20, 4:44 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth, Ocean	31 min
Jun 28, 5:27 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Warren	48 min
Jun 28, 7:17 PM EDT	Severe Thunderstorm Warning	PHI	Camden, Gloucester	43 min
Jun 28, 7:35 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden	40 min
Jun 29, 3:09 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Camden, Gloucester	37 min
Jun 29, 3:14 PM EDT	Severe Thunderstorm Warning	PHI	Cumberland, Gloucester, Salem	46 min
Jun 29, 3:17 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Ocean	43 min
Jun 29, 3:24 PM EDT	Severe Thunderstorm Warning	PHI	Gloucester, Salem	36 min
Jun 29, 3:31 PM EDT	Severe Thunderstorm Warning	PHI	Morris, Sussex, Warren	44 min
Jun 29, 3:45 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Ocean	45 min
Jun 29, 3:55 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Ocean	50 min
Jun 29, 3:56 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Warren	49 min
Jun 29, 3:59 PM EDT	Severe Thunderstorm Warning	PHI	Gloucester, Salem	46 min
Jun 29, 4:11 PM EDT	Severe Thunderstorm Warning	PHI	Morris, Sussex	49 min
Jun 29, 4:15 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Ocean	30 min
Jun 29, 4:23 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Ocean	27 min
Jun 29, 4:25 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Ocean	50 min
Jun 29, 4:27 PM EDT	Severe Thunderstorm Warning	OKX	Bergen, Essex, Hudson, Passaic	48 min
Jun 29, 4:27 PM EDT	Severe Thunderstorm Warning	PHI	Morris, Somerset, Sussex, Warren	48 min
Jun 29, 4:28 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Cumberland, Gloucester, Salem	47 min
Jun 29, 4:53 PM EDT	Severe Thunderstorm Warning	PHI	Morris	22 min
Jun 29, 4:59 PM EDT	Severe Thunderstorm Warning	OKX	Essex, Hudson, Union	48 min
Jun 29, 5:03 PM EDT	Severe Thunderstorm Warning	PHI	Middlesex, Morris, Somerset	27 min
Jun 29, 5:05 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Monmouth, Ocean	40 min
Jun 29, 5:08 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Cape May, Cumberland	67 min
Jun 29, 5:32 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth, Ocean	43 min
Jun 29, 5:43 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Cape May, Monmouth, Ocean	32 min
Jul 2, 5:51 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth	24 min
Jul 2, 7:03 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Mercer, Middlesex, Somerset	42 min
Jul 2, 7:27 PM EDT	Severe Thunderstorm Warning	PHI	Gloucester, Salem	48 min
Jul 2, 7:46 PM EDT	Severe Thunderstorm Warning	PHI	Mercer, Middlesex, Monmouth, Ocean	18 min
Jul 2, 8:10 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Gloucester, Salem	50 min
Jul 2, 8:57 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Gloucester	24 min
Jul 6, 2:25 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Ocean	28 min
Jul 6, 2:26 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth	34 min
Jul 6, 2:28 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Ocean	47 min
Jul 6, 3:04 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Cape May, Ocean	26 min
Jul 6, 3:22 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Ocean	37 min
Jul 6, 3:43 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Warren	47 min
Jul 6, 4:28 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Somerset	21 min
Jul 6, 4:39 PM EDT	Severe Thunderstorm Warning	PHI	Camden, Gloucester, Salem	32 min
Jul 6, 4:41 PM EDT	Severe Thunderstorm Warning	PHI	Morris, Sussex, Warren	49 min
Jul 6, 5:04 PM EDT	Severe Thunderstorm Warning	PHI	Gloucester, Salem	17 min
Jul 6, 5:25 PM EDT	Severe Thunderstorm Warning	PHI	Mercer	50 min
Jul 6, 6:13 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Mercer	15 min
Jul 6, 6:22 PM EDT	Severe Thunderstorm Warning	PHI	Sussex, Warren	38 min
Jul 6, 6:42 PM EDT	Severe Thunderstorm Warning	PHI	Gloucester	30 min
Jul 6, 6:53 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Sussex, Warren	67 min
Jul 6, 7:33 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Camden, Cumberland, Gloucester, Salem	42 min
Jul 11, 1:44 PM EDT	Severe Thunderstorm Warning	PHI	Cumberland, Gloucester, Salem	61 min
Jul 11, 6:14 PM EDT	Severe Thunderstorm Warning	PHI	Camden, Gloucester, Salem	61 min
Jul 11, 6:58 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Mercer, Middlesex, Somerset	62 min
Jul 11, 7:44 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Mercer, Monmouth, Ocean	61 min
Jul 17, 1:57 PM EDT	Severe Thunderstorm Warning	PHI	Sussex, Warren	32 min
Jul 17, 6:39 PM EDT	Severe Thunderstorm Warning	PHI	Morris, Sussex, Warren	51 min
Jul 17, 7:15 PM EDT	Severe Thunderstorm Warning	PHI	Gloucester, Salem	45 min
Jul 17, 7:19 PM EDT	Severe Thunderstorm Warning	OKX	Bergen, Essex, Hudson, Passaic, Union	41 min
Jul 17, 7:44 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Cape May, Cumberland, Gloucester, Salem	46 min
Jul 17, 8:00 PM EDT	Severe Thunderstorm Warning	OKX	Bergen	45 min
Jul 17, 8:15 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Gloucester, Hunterdon, Mercer and 1 more	45 min
Jul 17, 8:50 PM EDT	Severe Thunderstorm Warning	PHI	Middlesex, Monmouth, Somerset	40 min
Jul 17, 9:19 PM EDT	Severe Thunderstorm Warning	PHI	Middlesex, Monmouth, Ocean	41 min
Jul 20, 6:54 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	29 min
Jul 21, 6:16 PM EDT	Severe Thunderstorm Warning	PHI	Morris, Sussex	44 min
Jul 21, 6:49 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Middlesex, Morris, Somerset, Warren	41 min
Jul 21, 7:23 PM EDT	Severe Thunderstorm Warning	PHI	Middlesex, Monmouth, Somerset	52 min
Jul 21, 8:44 PM EDT	Severe Thunderstorm Warning	PHI	Warren	46 min
Jul 21, 9:24 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Somerset, Warren	51 min
Jul 21, 10:12 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Middlesex, Monmouth, Morris, Somerset	48 min
Jul 21, 10:13 PM EDT	Severe Thunderstorm Warning	PHI	Salem	47 min
Jul 21, 10:24 PM EDT	Severe Thunderstorm Warning	OKX	Hudson, Union	36 min
Jul 21, 10:54 PM EDT	Severe Thunderstorm Warning	PHI	Gloucester, Salem	25 min
Jul 21, 11:02 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth	31 min
Jul 21, 11:27 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth, Ocean	48 min
Jul 21, 11:31 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden	44 min
Jul 21, 11:40 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Warren	50 min
Jul 21, 11:54 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Monmouth, Ocean	51 min
Jul 22, 12:34 AM EDT	Severe Thunderstorm Warning	PHI	Monmouth, Ocean	41 min
Jul 22, 2:35 PM EDT	Severe Thunderstorm Warning	PHI	Morris, Sussex, Warren	40 min
Jul 22, 2:59 PM EDT	Severe Thunderstorm Warning	OKX	Bergen, Passaic	61 min
Jul 22, 3:12 PM EDT	Severe Thunderstorm Warning	PHI	Morris, Sussex	48 min
Jul 22, 3:38 PM EDT	Severe Thunderstorm Warning	OKX	Bergen, Passaic	52 min
Jul 22, 4:16 PM EDT	Severe Thunderstorm Warning	PHI	Cumberland, Gloucester, Salem	59 min
Jul 22, 4:24 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Sussex, Warren	51 min
Jul 22, 5:01 PM EDT	Severe Thunderstorm Warning	OKX	Bergen, Passaic	59 min
Jul 22, 5:01 PM EDT	Severe Thunderstorm Warning	PHI	Morris, Sussex, Warren	44 min
Jul 22, 5:04 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Gloucester	41 min
Jul 22, 5:14 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Cumberland, Gloucester, Salem	61 min
Jul 22, 5:16 PM EDT	Severe Thunderstorm Warning	OKX	Bergen, Essex, Hudson, Passaic	44 min
Jul 22, 5:17 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Somerset, Warren	73 min
Jul 22, 5:40 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Cumberland, Gloucester, Mercer and 4 more	80 min
Jul 22, 5:50 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Mercer, Middlesex, Monmouth, Morris, Somerset and 1 more	40 min
Jul 22, 6:09 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Cape May, Cumberland, Ocean	51 min
Jul 22, 6:27 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Middlesex, Monmouth, Morris, Somerset	34 min
Jul 22, 6:35 PM EDT	Severe Thunderstorm Warning	OKX	Hudson, Union	40 min
Jul 22, 6:54 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Cape May, Cumberland, Monmouth, Ocean	51 min
Jul 23, 1:44 AM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Ocean	46 min
Jul 30, 2:37 PM EDT	Severe Thunderstorm Warning	OKX	Essex, Hudson, Union	38 min
Jul 31, 1:02 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden	28 min
Jul 31, 1:30 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Gloucester, Mercer	45 min
Jul 31, 2:11 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Hunterdon, Mercer, Middlesex, Monmouth, Ocean and 1 more	49 min
Jul 31, 2:23 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth	52 min
Jul 31, 2:29 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Mercer, Monmouth, Ocean	46 min
Jul 31, 2:29 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth, Ocean	46 min
Jul 31, 2:46 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Mercer	44 min
Jul 31, 2:49 PM EDT	Severe Thunderstorm Warning	OKX	Bergen, Hudson	41 min
Jul 31, 2:53 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth	52 min
Jul 31, 3:05 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth, Ocean	40 min
Jul 31, 3:20 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Middlesex, Morris, Somerset	40 min
Jul 31, 3:24 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Mercer, Somerset	51 min
Jul 31, 3:39 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth, Ocean	51 min
Jul 31, 3:49 PM EDT	Severe Thunderstorm Warning	OKX	Essex, Hudson, Union	41 min
Jul 31, 3:49 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Mercer, Monmouth	41 min
Jul 31, 3:54 PM EDT	Severe Thunderstorm Warning	OKX	Essex, Union	34 min
Jul 31, 3:58 PM EDT	Severe Thunderstorm Warning	PHI	Morris, Somerset	17 min
Jul 31, 4:52 PM EDT	Severe Thunderstorm Warning	PHI	Morris, Sussex, Warren	38 min
Jul 31, 5:27 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Cumberland, Ocean, Salem	48 min
Jul 31, 5:44 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	25 min
Jul 31, 5:55 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Ocean	35 min
Jul 31, 9:33 PM EDT	Severe Thunderstorm Warning	PHI	Cape May, Cumberland	42 min
Aug 6, 7:32 PM EDT	Severe Thunderstorm Warning	PHI	Warren	43 min
Aug 6, 8:05 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Warren	55 min
Aug 7, 1:22 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Somerset, Warren	38 min
Aug 7, 1:26 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Mercer	49 min
Aug 7, 1:38 PM EDT	Severe Thunderstorm Warning	PHI	Cape May	52 min
Aug 7, 1:40 PM EDT	Severe Thunderstorm Warning	PHI	Mercer, Middlesex, Somerset	50 min
Aug 7, 1:44 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth, Ocean	46 min
Aug 7, 1:52 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Somerset	55 min
Aug 7, 2:07 PM EDT	Severe Thunderstorm Warning	PHI	Mercer, Middlesex, Monmouth	38 min
Aug 7, 2:18 PM EDT	Severe Thunderstorm Warning	OKX	Bergen, Essex, Hudson, Passaic, Union	42 min
Aug 7, 2:23 PM EDT	Severe Thunderstorm Warning	PHI	Cape May	19 min
Aug 7, 2:27 PM EDT	Severe Thunderstorm Warning	PHI	Sussex, Warren	32 min
Aug 7, 2:30 PM EDT	Severe Thunderstorm Warning	PHI	Middlesex, Monmouth	45 min
Aug 7, 2:56 PM EDT	Severe Thunderstorm Warning	OKX	Bergen, Essex, Hudson, Passaic, Union	21 min
Aug 7, 3:05 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden	40 min
Aug 7, 3:07 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth	53 min
Aug 7, 3:18 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon	42 min
Aug 7, 3:24 PM EDT	Severe Thunderstorm Warning	PHI	Warren	51 min
Aug 7, 3:38 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Ocean	67 min
Aug 7, 3:54 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Warren	51 min
Aug 7, 3:59 PM EDT	Severe Thunderstorm Warning	PHI	Middlesex, Monmouth	46 min
Aug 7, 4:09 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Mercer, Middlesex, Somerset	66 min
Aug 7, 4:14 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Somerset, Sussex, Warren	46 min
Aug 7, 4:27 PM EDT	Severe Thunderstorm Warning	PHI	Gloucester, Salem	63 min
Aug 7, 4:34 PM EDT	Severe Thunderstorm Warning	PHI	Mercer, Middlesex, Monmouth	41 min
Aug 7, 5:02 PM EDT	Severe Thunderstorm Warning	PHI	Mercer, Middlesex, Monmouth, Morris, Somerset	22 min
Aug 7, 5:16 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Gloucester, Mercer, Salem	59 min
Aug 7, 5:39 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Cumberland, Gloucester, Salem	51 min
Aug 7, 5:41 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth	49 min
Aug 7, 5:57 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Gloucester, Mercer, Middlesex, Monmouth and 1 more	78 min
Aug 7, 6:21 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 2 more	69 min
Aug 7, 7:15 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Gloucester, Monmouth, Ocean	75 min
Aug 8, 5:46 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth, Ocean	23 min
Aug 8, 7:01 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Somerset, Sussex, Warren	44 min
Aug 8, 7:11 PM EDT	Severe Thunderstorm Warning	OKX	Bergen, Passaic	36 min
Aug 8, 7:19 PM EDT	Severe Thunderstorm Warning	OKX	Bergen, Essex, Hudson, Passaic, Union	41 min
Aug 8, 7:59 PM EDT	Severe Thunderstorm Warning	OKX	Bergen, Essex, Hudson, Union	21 min
Aug 9, 4:12 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Cape May, Cumberland	33 min
Aug 18, 3:21 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Ocean	39 min
Aug 18, 5:08 PM EDT	Severe Thunderstorm Warning	OKX	Bergen, Hudson	25 min
Aug 18, 5:32 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Middlesex, Morris, Somerset	43 min
Aug 18, 5:36 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Somerset	39 min
Aug 18, 5:57 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Warren	48 min
Aug 18, 6:40 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Somerset, Sussex, Warren	54 min
Aug 19, 3:56 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden	37 min
Aug 19, 3:58 PM EDT	Severe Thunderstorm Warning	PHI	Middlesex, Monmouth	47 min
Aug 19, 4:03 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden	42 min
Aug 19, 4:05 PM EDT	Severe Thunderstorm Warning	PHI	Ocean	40 min
Aug 19, 4:21 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth	39 min
Aug 19, 4:30 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Mercer, Monmouth, Ocean	45 min
Aug 19, 4:54 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth, Ocean	40 min
Aug 19, 5:03 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Gloucester, Ocean	57 min
Aug 21, 4:36 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Middlesex, Morris, Somerset	54 min
Aug 21, 5:29 PM EDT	Severe Thunderstorm Warning	OKX	Essex, Hudson, Union	61 min
Aug 22, 6:43 PM EDT	Severe Thunderstorm Warning	PHI	Warren	47 min
Aug 22, 7:30 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Somerset	30 min
Aug 22, 7:54 PM EDT	Severe Thunderstorm Warning	OKX	Essex, Hudson, Union	51 min
Aug 22, 7:57 PM EDT	Severe Thunderstorm Warning	PHI	Morris, Somerset	18 min
Aug 22, 8:33 PM EDT	Severe Thunderstorm Warning	OKX	Hudson	42 min
Aug 22, 10:55 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Cape May, Cumberland	65 min
Sep 4, 3:52 PM EDT	Severe Thunderstorm Warning	OKX	Essex, Hudson, Union	23 min
Sep 4, 6:02 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Gloucester	43 min
Sep 4, 7:24 PM EDT	Severe Thunderstorm Warning	PHI	Cumberland, Salem	51 min
Sep 4, 8:03 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Gloucester	57 min
Sep 4, 8:10 PM EDT	Severe Thunderstorm Warning	PHI	Ocean	23 min
Sep 4, 8:16 PM EDT	Severe Thunderstorm Warning	PHI	Cumberland, Salem	59 min
Sep 4, 8:54 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Gloucester, Ocean	81 min
Sep 28, 10:41 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Gloucester	49 min
Oct 31, 10:43 PM EDT	Severe Thunderstorm Warning	PHI	Sussex, Warren	77 min
Oct 31, 11:15 PM EDT	Severe Thunderstorm Warning	PHI	Gloucester, Salem	60 min
Oct 31, 11:24 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Mercer, Morris, Somerset	66 min
Oct 31, 11:34 PM EDT	Severe Thunderstorm Warning	OKX	Bergen, Passaic	56 min
Oct 31, 11:54 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Cumberland, Gloucester, Mercer, Middlesex and 2 more	66 min
Nov 1, 12:07 AM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Cape May, Cumberland, Monmouth, Ocean	83 min
Nov 1, 12:28 AM EDT	Severe Thunderstorm Warning	OKX	Bergen, Essex, Hudson, Passaic, Union	62 min

By county

Every county with at least one alert. A county page lists each alert that covered it.

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record The radar archive 2018 2020

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.