Alert archive / New Jersey / Severe Thunderstorm Warnings

Severe Thunderstorm Warnings in New Jersey, 2024

169 severe thunderstorm warnings in 2024. 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 2024. Tap one for its archive.

Severe Thunderstorm Warnings
169
Busiest month
June67 severe thunderstorm warnings
Busiest day
June 30, 202423 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.

110 of 169 severe thunderstorm warnings covering New Jersey in 2024 had a qualifying storm report inside them; 245 of 271 hail, wind and damage reports fell inside a warning, on average 23 minutes after it went out.

New Jersey, 2024

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Severe thunderstorm warnings16911035%27190%23 min

Each office's whole area, 2024

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Philadelphia/Mount Holly: severe thunderstorm warnings21913737%46390%23 min
NWS New York, NY: severe thunderstorm warnings876426%26189%21 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.

IssuedProductOfficeCountiesLasted
Apr 3, 5:08 PM EDTSevere Thunderstorm WarningPHIBurlington, Middlesex, Monmouth, Ocean43 min
Apr 3, 7:24 PM EDTSevere Thunderstorm WarningPHIBurlington, Ocean51 min
Apr 15, 4:21 PM EDTSevere Thunderstorm WarningPHICumberland, Salem22 min
Apr 29, 5:52 PM EDTSevere Thunderstorm WarningOKXBergen38 min
Apr 30, 7:38 PM EDTSevere Thunderstorm WarningPHIWarren52 min
Apr 30, 8:14 PM EDTSevere Thunderstorm WarningPHIHunterdon, Morris, Somerset, Warren46 min
May 23, 5:53 AM EDTSevere Thunderstorm WarningPHIBurlington24 min
May 23, 8:21 AM EDTSevere Thunderstorm WarningPHIHunterdon, Warren39 min
May 23, 8:59 AM EDTSevere Thunderstorm WarningPHIHunterdon, Middlesex, Morris, Somerset, Sussex, Warren46 min
May 23, 9:09 AM EDTSevere Thunderstorm WarningOKXBergen, Essex, Hudson, Passaic, Union51 min
May 23, 9:54 AM EDTSevere Thunderstorm WarningOKXBergen, Hudson51 min
May 26, 3:02 PM EDTSevere Thunderstorm WarningPHICamden28 min
Jun 14, 4:14 PM EDTSevere Thunderstorm WarningPHISussex, Warren46 min
Jun 14, 4:40 PM EDTSevere Thunderstorm WarningPHIHunterdon, Warren50 min
Jun 14, 5:02 PM EDTSevere Thunderstorm WarningPHISussex43 min
Jun 14, 5:18 PM EDTSevere Thunderstorm WarningPHIMorris, Sussex, Warren42 min
Jun 14, 5:23 PM EDTSevere Thunderstorm WarningPHIHunterdon, Middlesex, Morris, Somerset, Warren52 min
Jun 14, 5:29 PM EDTSevere Thunderstorm WarningOKXBergen, Passaic46 min
Jun 14, 5:37 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Hunterdon, Mercer38 min
Jun 14, 5:51 PM EDTSevere Thunderstorm WarningPHIBurlington, Mercer, Middlesex, Monmouth, Ocean39 min
Jun 14, 6:09 PM EDTSevere Thunderstorm WarningPHIBurlington, Mercer, Middlesex, Somerset21 min
Jun 14, 6:18 PM EDTSevere Thunderstorm WarningPHIMiddlesex, Monmouth, Somerset27 min
Jun 14, 6:24 PM EDTSevere Thunderstorm WarningPHIBurlington, Mercer, Middlesex, Monmouth, Ocean51 min
Jun 14, 6:34 PM EDTSevere Thunderstorm WarningPHICape May, Cumberland41 min
Jun 22, 12:26 PM EDTSevere Thunderstorm WarningPHISussex34 min
Jun 22, 3:06 PM EDTSevere Thunderstorm WarningPHIMiddlesex, Somerset20 min
Jun 22, 3:24 PM EDTSevere Thunderstorm WarningOKXUnion51 min
Jun 22, 4:10 PM EDTSevere Thunderstorm WarningPHIMonmouth35 min
Jun 22, 5:13 PM EDTSevere Thunderstorm WarningOKXBergen, Passaic47 min
Jun 22, 6:39 PM EDTSevere Thunderstorm WarningPHIMorris36 min
Jun 22, 7:07 PM EDTSevere Thunderstorm WarningPHIMorris23 min
Jun 22, 7:32 PM EDTSevere Thunderstorm WarningPHIMiddlesex, Morris, Somerset22 min
Jun 22, 7:57 PM EDTSevere Thunderstorm WarningPHIHunterdon17 min
Jun 22, 8:49 PM EDTSevere Thunderstorm WarningPHIHunterdon, Warren26 min
Jun 23, 4:48 PM EDTSevere Thunderstorm WarningPHISalem42 min
Jun 23, 5:22 PM EDTSevere Thunderstorm WarningPHICamden, Gloucester, Salem53 min
Jun 23, 5:56 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Camden, Gloucester49 min
Jun 23, 6:03 PM EDTSevere Thunderstorm WarningPHIGloucester, Salem42 min
Jun 23, 6:32 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Camden, Mercer, Middlesex, Monmouth and 1 more58 min
Jun 23, 6:39 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Camden, Gloucester, Salem51 min
Jun 23, 7:13 PM EDTSevere Thunderstorm Warning Considerable damage threatPHIAtlantic, Burlington, Camden, Gloucester, Ocean62 min
Jun 23, 7:24 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Gloucester, Salem51 min
Jun 23, 8:34 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Cumberland, Ocean71 min
Jun 23, 8:42 PM EDTSevere Thunderstorm WarningPHICumberland, Gloucester, Salem48 min
Jun 23, 10:17 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Ocean43 min
Jun 26, 6:58 PM EDTSevere Thunderstorm WarningPHIHunterdon, Morris, Sussex, Warren47 min
Jun 26, 6:59 PM EDTSevere Thunderstorm WarningPHISussex, Warren46 min
Jun 26, 7:28 PM EDTSevere Thunderstorm WarningPHIHunterdon, Middlesex, Morris, Somerset47 min
Jun 26, 7:37 PM EDTSevere Thunderstorm Warning Considerable damage threatPHIHunterdon, Middlesex, Morris, Somerset, Sussex, Warren38 min
Jun 26, 7:44 PM EDTSevere Thunderstorm Warning Considerable damage threatOKXBergen, Essex, Hudson, Passaic, Union46 min
Jun 26, 8:13 PM EDTSevere Thunderstorm WarningPHIMiddlesex, Monmouth, Somerset28 min
Jun 26, 8:32 PM EDTSevere Thunderstorm WarningOKXBergen, Essex, Hudson, Passaic, Union28 min
Jun 26, 10:51 PM EDTSevere Thunderstorm WarningPHIBurlington, Mercer39 min
Jun 26, 11:04 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden41 min
Jun 26, 11:38 PM EDTSevere Thunderstorm WarningPHIBurlington, Ocean52 min
Jun 27, 12:15 AM EDTSevere Thunderstorm WarningPHIMonmouth, Ocean24 min
Jun 30, 1:57 PM EDTSevere Thunderstorm WarningPHISussex, Warren48 min
Jun 30, 2:10 PM EDTSevere Thunderstorm WarningPHIMorris, Sussex, Warren50 min
Jun 30, 2:42 PM EDTSevere Thunderstorm WarningPHIHunterdon, Morris, Somerset, Sussex, Warren63 min
Jun 30, 3:22 PM EDTSevere Thunderstorm WarningOKXBergen, Essex, Hudson, Passaic32 min
Jun 30, 3:26 PM EDTSevere Thunderstorm WarningPHIHunterdon, Morris, Somerset, Warren49 min
Jun 30, 4:10 PM EDTSevere Thunderstorm WarningPHIHunterdon, Middlesex, Morris, Somerset35 min
Jun 30, 4:25 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Gloucester50 min
Jun 30, 4:32 PM EDTSevere Thunderstorm WarningOKXEssex, Hudson, Union43 min
Jun 30, 4:37 PM EDTSevere Thunderstorm WarningPHIHunterdon, Mercer53 min
Jun 30, 4:44 PM EDTSevere Thunderstorm WarningPHIHunterdon, Middlesex, Morris, Somerset31 min
Jun 30, 5:09 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden51 min
Jun 30, 5:11 PM EDTSevere Thunderstorm WarningPHIHunterdon, Middlesex, Somerset49 min
Jun 30, 5:20 PM EDTSevere Thunderstorm WarningPHIMonmouth25 min
Jun 30, 5:51 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Gloucester, Salem39 min
Jun 30, 5:55 PM EDTSevere Thunderstorm WarningPHIMiddlesex, Monmouth, Somerset50 min
Jun 30, 6:06 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Camden, Cumberland, Gloucester, Salem39 min
Jun 30, 6:35 PM EDTSevere Thunderstorm WarningPHICamden, Gloucester, Salem40 min
Jun 30, 6:40 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Camden, Ocean65 min
Jun 30, 6:42 PM EDTSevere Thunderstorm WarningPHIMiddlesex, Monmouth48 min
Jun 30, 7:00 PM EDTSevere Thunderstorm WarningPHICumberland45 min
Jun 30, 7:31 PM EDTSevere Thunderstorm WarningPHISalem44 min
Jun 30, 7:43 PM EDTSevere Thunderstorm WarningPHICape May, Cumberland24 min
Jun 30, 7:56 PM EDTSevere Thunderstorm WarningPHIAtlantic, Camden, Cumberland, Gloucester, Salem49 min
Jun 30, 8:15 PM EDTSevere Thunderstorm WarningPHICumberland, Salem45 min
Jul 6, 4:04 AM EDTSevere Thunderstorm WarningPHIMorris, Sussex14 min
Jul 6, 4:15 AM EDTSevere Thunderstorm WarningOKXBergen, Passaic45 min
Jul 9, 5:02 PM EDTSevere Thunderstorm WarningPHIHunterdon, Morris, Warren43 min
Jul 14, 2:31 PM EDTSevere Thunderstorm WarningPHIMiddlesex33 min
Jul 14, 3:44 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden46 min
Jul 14, 3:51 PM EDTSevere Thunderstorm WarningPHIMonmouth, Ocean39 min
Jul 14, 4:13 PM EDTSevere Thunderstorm WarningPHICamden, Gloucester47 min
Jul 14, 4:22 PM EDTSevere Thunderstorm Warning Considerable damage threatPHIBurlington32 min
Jul 14, 4:24 PM EDTSevere Thunderstorm WarningPHIMonmouth, Ocean51 min
Jul 15, 5:18 AM EDTSevere Thunderstorm WarningPHIMonmouth28 min
Jul 16, 4:59 PM EDTSevere Thunderstorm WarningPHIMorris, Sussex, Warren46 min
Jul 16, 5:01 PM EDTSevere Thunderstorm WarningPHIHunterdon, Warren44 min
Jul 16, 5:15 PM EDTSevere Thunderstorm WarningPHIHunterdon60 min
Jul 16, 5:41 PM EDTSevere Thunderstorm WarningPHISussex49 min
Jul 16, 5:43 PM EDTSevere Thunderstorm Warning Considerable damage threatPHIHunterdon, Morris, Somerset47 min
Jul 16, 5:55 PM EDTSevere Thunderstorm WarningOKXPassaic50 min
Jul 16, 6:22 PM EDTSevere Thunderstorm WarningPHIMiddlesex, Morris, Somerset38 min
Jul 16, 6:32 PM EDTSevere Thunderstorm WarningOKXUnion28 min
Jul 16, 6:56 PM EDTSevere Thunderstorm WarningOKXHudson, Union49 min
Jul 16, 7:08 PM EDTSevere Thunderstorm WarningPHIMonmouth34 min
Jul 16, 7:11 PM EDTSevere Thunderstorm WarningPHIHunterdon, Warren49 min
Jul 16, 8:13 PM EDTSevere Thunderstorm WarningPHIHunterdon, Mercer, Middlesex, Morris, Somerset62 min
Jul 16, 8:23 PM EDTSevere Thunderstorm WarningPHIMercer, Salem67 min
Jul 16, 8:50 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Camden, Gloucester, Mercer, Monmouth and 1 more55 min
Jul 16, 9:04 PM EDTSevere Thunderstorm WarningPHIAtlantic, Camden, Cumberland, Gloucester, Salem56 min
Jul 16, 9:07 PM EDTSevere Thunderstorm WarningPHIMercer, Middlesex, Monmouth, Somerset68 min
Jul 16, 9:25 PM EDTSevere Thunderstorm WarningOKXHudson, Union13 min
Jul 16, 9:49 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 3 more71 min
Jul 16, 10:58 PM EDTSevere Thunderstorm WarningPHICape May, Cumberland, Gloucester, Salem62 min
Jul 17, 2:25 PM EDTSevere Thunderstorm WarningPHIMorris, Sussex, Warren65 min
Jul 17, 3:05 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Gloucester39 min
Jul 17, 3:13 PM EDTSevere Thunderstorm WarningPHIMorris, Sussex, Warren62 min
Jul 17, 3:21 PM EDTSevere Thunderstorm WarningOKXBergen, Passaic39 min
Jul 17, 4:33 PM EDTSevere Thunderstorm WarningOKXBergen42 min
Jul 17, 6:40 PM EDTSevere Thunderstorm WarningPHIWarren65 min
Jul 17, 7:06 PM EDTSevere Thunderstorm WarningPHIHunterdon, Warren54 min
Jul 17, 8:36 PM EDTSevere Thunderstorm WarningOKXEssex, Hudson, Union39 min
Jul 17, 8:52 PM EDTSevere Thunderstorm WarningOKXBergen, Essex, Hudson, Passaic23 min
Jul 17, 9:08 PM EDTSevere Thunderstorm WarningOKXBergen, Essex, Hudson, Passaic, Union52 min
Jul 17, 9:09 PM EDTSevere Thunderstorm WarningPHIBurlington, Mercer, Middlesex, Monmouth, Ocean51 min
Jul 17, 10:36 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Ocean39 min
Jul 31, 4:11 PM EDTSevere Thunderstorm WarningPHISalem34 min
Aug 2, 4:32 PM EDTSevere Thunderstorm WarningPHIGloucester, Salem24 min
Aug 2, 5:51 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Mercer39 min
Aug 2, 6:08 PM EDTSevere Thunderstorm WarningOKXBergen, Essex, Hudson, Passaic, Union52 min
Aug 2, 6:19 PM EDTSevere Thunderstorm WarningPHIBurlington, Mercer, Middlesex, Monmouth, Ocean39 min
Aug 2, 6:22 PM EDTSevere Thunderstorm WarningPHIBurlington, Ocean83 min
Aug 2, 6:46 PM EDTSevere Thunderstorm WarningOKXHudson44 min
Aug 2, 9:12 PM EDTSevere Thunderstorm WarningPHICamden, Gloucester, Salem48 min
Aug 3, 1:27 PM EDTSevere Thunderstorm WarningPHIMorris, Sussex, Warren48 min
Aug 3, 2:05 PM EDTSevere Thunderstorm WarningPHIMorris, Sussex55 min
Aug 3, 2:20 PM EDTSevere Thunderstorm WarningOKXBergen, Passaic40 min
Aug 3, 3:41 PM EDTSevere Thunderstorm WarningPHIWarren45 min
Aug 3, 5:22 PM EDTSevere Thunderstorm WarningOKXBergen53 min
Aug 3, 6:04 PM EDTSevere Thunderstorm WarningPHIMiddlesex, Monmouth41 min
Aug 3, 6:16 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Gloucester, Salem59 min
Aug 3, 6:31 PM EDTSevere Thunderstorm WarningPHICumberland, Gloucester, Salem74 min
Aug 3, 6:49 PM EDTSevere Thunderstorm WarningPHIBurlington, Mercer, Middlesex, Monmouth, Ocean, Somerset56 min
Aug 3, 8:11 PM EDTSevere Thunderstorm WarningPHIAtlantic, Cape May, Cumberland, Gloucester, Salem64 min
Aug 3, 8:59 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Camden, Gloucester, Ocean61 min
Aug 4, 6:19 PM EDTSevere Thunderstorm WarningPHIMercer, Middlesex, Somerset23 min
Aug 6, 2:41 PM EDTSevere Thunderstorm WarningPHIOcean19 min
Aug 6, 3:18 PM EDTSevere Thunderstorm WarningPHIMonmouth27 min
Aug 6, 3:21 PM EDTSevere Thunderstorm WarningPHIBurlington23 min
Aug 6, 3:23 PM EDTSevere Thunderstorm WarningPHIMercer, Middlesex, Monmouth37 min
Aug 6, 3:49 PM EDTSevere Thunderstorm WarningPHIMercer, Middlesex, Monmouth56 min
Aug 6, 4:32 PM EDTSevere Thunderstorm WarningPHIHunterdon, Middlesex, Somerset43 min
Aug 6, 4:37 PM EDTSevere Thunderstorm WarningPHIHunterdon, Mercer, Middlesex, Somerset40 min
Aug 6, 4:53 PM EDTSevere Thunderstorm WarningOKXBergen67 min
Aug 6, 4:56 PM EDTSevere Thunderstorm WarningPHIOcean49 min
Aug 6, 5:06 PM EDTSevere Thunderstorm WarningPHIHunterdon, Middlesex, Morris, Somerset54 min
Aug 6, 5:17 PM EDTSevere Thunderstorm WarningOKXEssex, Union43 min
Aug 6, 9:32 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden27 min
Aug 18, 4:04 PM EDTSevere Thunderstorm WarningPHIWarren41 min
Aug 18, 4:41 PM EDTSevere Thunderstorm WarningPHISussex, Warren34 min
Aug 18, 5:10 PM EDTSevere Thunderstorm WarningPHIHunterdon, Morris, Warren29 min
Aug 18, 5:21 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden39 min
Aug 18, 5:47 PM EDTSevere Thunderstorm WarningPHIMorris, Sussex43 min
Aug 18, 5:47 PM EDTSevere Thunderstorm WarningPHIBurlington, Mercer, Middlesex, Monmouth58 min
Aug 18, 5:51 PM EDTSevere Thunderstorm WarningPHIMorris, Somerset24 min
Aug 18, 5:54 PM EDTSevere Thunderstorm WarningOKXBergen, Passaic51 min
Aug 18, 5:59 PM EDTSevere Thunderstorm WarningPHIMorris, Sussex18 min
Aug 18, 6:24 PM EDTSevere Thunderstorm WarningPHIMiddlesex, Morris, Somerset66 min
Aug 18, 6:28 PM EDTSevere Thunderstorm WarningOKXBergen, Essex, Passaic, Union47 min
Aug 25, 3:58 PM EDTSevere Thunderstorm WarningPHISussex32 min
Aug 26, 3:06 PM EDTSevere Thunderstorm WarningPHIMonmouth, Ocean39 min
Aug 26, 4:41 PM EDTSevere Thunderstorm WarningPHIBurlington, Ocean49 min
Aug 28, 7:59 PM EDTSevere Thunderstorm WarningPHIHunterdon, Mercer, Middlesex, Monmouth, Somerset46 min
Aug 28, 8:39 PM EDTSevere Thunderstorm WarningPHIMercer, Middlesex, Monmouth, Ocean36 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 nowTornadoes on recordThe radar archive20232025

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.