Alert archive / New Jersey / Flash Flood Warnings
Flash Flood Warnings in New Jersey, 2021
85 flash flood warnings in 2021. 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 flash flood warnings reaches back to 1986.
Flash Flood Warnings by county
Each county as a circle sized by its count in 2021. Tap one for its archive.
- Flash Flood Warnings
- 85
- Busiest month
- July29 flash flood warnings
- Busiest day
- August 22, 202114 flash flood warnings
Over time
By month
The alerts
Every alert, in the order issued. Times are local, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 3, 7:09 PM EDT | Flash Flood Warning | PHI | Camden, Gloucester, Salem | 2 hr |
| Jun 8, 3:15 PM EDT | Flash Flood Warning | OKX | Bergen, Essex, Hudson, Passaic, Union | 3 hr |
| Jun 8, 3:30 PM EDT | Flash Flood Warning | OKX | Bergen | 3 hr |
| Jun 8, 3:49 PM EDT | Flash Flood Warning | OKX | Hudson | 2 hr |
| Jun 9, 2:21 PM EDT | Flash Flood Warning | PHI | Cumberland, Gloucester, Salem | 73 min |
| Jun 9, 3:49 PM EDT | Flash Flood Warning | PHI | Burlington | 3 hr |
| Jun 14, 9:17 PM EDT | Flash Flood Warning | PHI | Burlington, Camden | 3 hr |
| Jul 2, 1:11 PM EDT | Flash Flood Warning | PHI | Gloucester, Salem | 59 min |
| Jul 2, 5:25 PM EDT | Flash Flood Warning | OKX | Bergen, Essex, Hudson | 95 min |
| Jul 2, 7:11 PM EDT | Flash Flood Warning | OKX | Essex, Hudson, Union | 94 min |
| Jul 2, 7:41 PM EDT | Flash Flood Warning | PHI | Burlington, Camden | 3 hr |
| Jul 2, 8:26 PM EDT | Flash Flood Warning | OKX | Bergen | 94 min |
| Jul 8, 3:15 PM EDT | Flash Flood Warning | OKX | Bergen, Essex, Passaic | 3 hr |
| Jul 8, 3:53 PM EDT | Flash Flood Warning | OKX | Bergen, Essex, Hudson | 3 hr |
| Jul 8, 5:06 PM EDT | Flash Flood Warning | OKX | Bergen | 3 hr |
| Jul 12, 2:12 PM EDT | Flash Flood Warning | PHI | Burlington | 7 hr |
| Jul 12, 2:37 PM EDT | Flash Flood Warning | PHI | Mercer, Middlesex, Monmouth | 93 min |
| Jul 12, 6:01 PM EDT | Flash Flood Warning | PHI | Camden | 102 min |
| Jul 12, 6:09 PM EDT | Flash Flood Warning | OKX | Bergen, Essex, Passaic | 3 hr |
| Jul 12, 7:11 PM EDT | Flash Flood Warning | PHI | Morris, Sussex | 35 min |
| Jul 14, 7:37 PM EDT | Flash Flood Warning | PHI | Monmouth | 3 hr |
| Jul 16, 5:21 PM EDT | Flash Flood Warning | PHI | Sussex | 2 hr |
| Jul 17, 2:20 PM EDT | Flash Flood Warning | OKX | Bergen, Essex, Hudson, Union | 3 hr |
| Jul 17, 3:24 PM EDT | Flash Flood Warning | OKX | Union | 80 min |
| Jul 17, 5:25 PM EDT | Flash Flood Warning | PHI | Hunterdon | 6 hr |
| Jul 17, 6:15 PM EDT | Flash Flood Warning | PHI | Morris, Somerset | 5 hr |
| Jul 17, 8:09 PM EDT | Flash Flood Warning | PHI | Mercer, Somerset | 4 hr |
| Jul 17, 9:36 PM EDT | Flash Flood Warning | PHI | Camden, Gloucester, Salem | 2 hr |
| Jul 17, 10:43 PM EDT | Flash Flood Warning | PHI | Burlington, Mercer, Middlesex, Monmouth, Ocean | 79 min |
| Jul 29, 5:32 PM EDT | Flash Flood Warning | PHI | Warren | 2 hr |
| Jul 29, 5:58 PM EDT | Flash Flood Warning | PHI | Hunterdon, Mercer, Somerset | 3 hr |
| Jul 29, 6:47 PM EDT | Flash Flood Warning | OKX | Essex | 3 hr |
| Jul 29, 6:56 PM EDT | Flash Flood Warning | PHI | Mercer, Middlesex, Monmouth, Ocean, Somerset | 4 hr |
| Jul 29, 7:12 PM EDT | Flash Flood Warning | PHI | Burlington | 4 hr |
| Jul 29, 8:19 PM EDT | Flash Flood Warning | PHI | Burlington, Monmouth, Ocean | 4 hr |
| Jul 29, 8:43 PM EDT | Flash Flood Warning | PHI | Monmouth, Ocean | 3 hr |
| Aug 10, 5:58 AM EDT | Flash Flood Warning | PHI | Burlington, Mercer | 2 hr |
| Aug 11, 7:28 PM EDT | Flash Flood Warning | PHI | Morris, Warren | 3 hr |
| Aug 19, 2:13 AM EDT | Flash Flood Warning | PHI | Burlington, Camden, Mercer | 4 hr |
| Aug 21, 10:18 PM EDT | Flash Flood Warning | OKX | Bergen, Essex, Hudson | 4 hr |
| Aug 22, 12:18 AM EDT | Flash Flood Warning | OKX | Essex, Passaic | 2 hr |
| Aug 22, 12:24 AM EDT | Flash Flood Warning | PHI | Morris | 3 hr |
| Aug 22, 1:22 AM EDT | Flash Flood Warning | OKX | Union | 117 min |
| Aug 22, 2:04 AM EDT | Flash Flood Warning | PHI | Middlesex, Monmouth | 9 hr |
| Aug 22, 2:09 AM EDT | Flash Flood Warning | PHI | Burlington, Ocean | 5 hr |
| Aug 22, 2:40 AM EDT | Flash Flood Warning | PHI | Hunterdon, Morris, Somerset | 5 hr |
| Aug 22, 3:10 AM EDT | Flash Flood Warning | PHI | Burlington, Hunterdon, Mercer, Monmouth, Ocean | 8 hr |
| Aug 22, 4:21 AM EDT | Flash Flood Warning | PHI | Monmouth, Ocean | 3 hr |
| Aug 22, 5:36 AM EDT | Flash Flood Warning | PHI | Mercer, Middlesex, Monmouth, Somerset | 5 hr |
| Aug 22, 6:07 AM EDT | Flash Flood Warning | PHI | Hunterdon, Warren | 67 min |
| Aug 22, 2:44 PM EDT | Flash Flood Warning | OKX | Bergen, Essex, Hudson, Passaic, Union | 3 hr |
| Aug 22, 4:51 PM EDT | Flash Flood Warning | OKX | Bergen, Essex, Passaic | 6 hr |
| Aug 22, 5:48 PM EDT | Flash Flood Warning | PHI | Morris, Sussex, Warren | 6 hr |
| Aug 22, 8:47 PM EDT | Flash Flood Warning | PHI | Sussex, Warren | 6 hr |
| Aug 27, 3:58 PM EDT | Flash Flood Warning | OKX | Essex, Hudson, Union | 2 hr |
| Aug 27, 4:46 PM EDT | Flash Flood Warning | OKX | Bergen, Essex, Hudson, Passaic | 89 min |
| Aug 27, 5:44 PM EDT | Flash Flood Warning | PHI | Middlesex | 4 hr |
| Aug 28, 11:57 AM EDT | Flash Flood Warning | PHI | Gloucester | 3 hr |
| Aug 29, 12:37 PM EDT | Flash Flood Warning | PHI | Atlantic, Cape May | 4 hr |
| Sep 1, 4:12 PM EDT | Flash Flood Warning | PHI | Hunterdon, Warren | 7 hr |
| Sep 1, 5:26 PM EDT | Flash Flood Warning | PHI | Burlington, Camden, Gloucester, Salem | 9 hr |
| Sep 1, 5:42 PM EDT | Flash Flood Warning | PHI | Hunterdon, Mercer, Morris, Somerset, Warren | 10 hr |
| Sep 1, 5:54 PM EDT | Flash Flood Warning | OKX | Bergen, Essex, Hudson, Passaic, Union | 6 hr |
| Sep 1, 6:05 PM EDT | Flash Flood Warning | PHI | Hunterdon, Mercer, Middlesex, Morris, Somerset | 10 hr |
| Sep 1, 6:08 PM EDT | Flash Flood Warning | PHI | Hunterdon, Morris, Somerset, Sussex, Warren | 6 hr |
| Sep 1, 7:31 PM EDT | Flash Flood Warning | PHI | Hunterdon, Mercer, Somerset | 4 hr |
| Sep 1, 8:02 PM EDT | Flash Flood Warning | PHI | Middlesex, Morris, Somerset | 5 hr |
| Sep 1, 9:01 PM EDT | Flash Flood Warning | PHI | Burlington, Mercer, Middlesex, Monmouth, Ocean | 5 hr |
| Sep 1, 10:05 PM EDT | Flash Flood Warning | PHI | Morris, Somerset | 4 hr |
| Sep 1, 10:24 PM EDT | Flash Flood Warning | PHI | Burlington, Camden, Gloucester | 4 hr |
| Sep 1, 11:54 PM EDT | Flash Flood Warning | OKX | Bergen, Essex, Hudson, Passaic, Union | 3 hr |
| Sep 8, 10:42 PM EDT | Flash Flood Warning | PHI | Warren | 6 hr |
| Sep 13, 9:12 PM EDT | Flash Flood Warning | PHI | Hunterdon, Morris, Warren | 114 min |
| Sep 23, 11:57 AM EDT | Flash Flood Warning | PHI | Gloucester, Salem | 3 hr |
| Sep 23, 1:42 PM EDT | Flash Flood Warning | PHI | Burlington, Camden, Gloucester | 4 hr |
| Sep 23, 3:26 PM EDT | Flash Flood Warning | PHI | Burlington, Hunterdon, Mercer, Middlesex, Morris, Somerset | 2 hr |
| Sep 23, 4:36 PM EDT | Flash Flood Warning | PHI | Middlesex, Monmouth, Morris, Somerset, Sussex | 3 hr |
| Sep 23, 5:14 PM EDT | Flash Flood Warning | OKX | Essex, Passaic, Union | 3 hr |
| Oct 5, 2:27 AM EDT | Flash Flood Warning | PHI | Camden, Gloucester | 3 hr |
| Oct 25, 9:42 PM EDT | Flash Flood Warning | OKX | Essex, Passaic | 3 hr |
| Oct 25, 10:33 PM EDT | Flash Flood Warning | OKX | Bergen | 3 hr |
| Oct 26, 2:08 AM EDT | Flash Flood Warning | PHI | Burlington, Mercer, Middlesex, Monmouth, Ocean | 4 hr |
| Oct 26, 3:08 AM EDT | Flash Flood Warning | PHI | Middlesex, Monmouth, Ocean | 8 hr |
| Oct 26, 4:14 AM EDT | Flash Flood Warning | PHI | Hunterdon, Middlesex, Morris, Somerset | 4 hr |
| Oct 26, 7:39 AM EDT | Flash Flood Warning | OKX | Bergen, Essex, Hudson, Passaic, Union | 3 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Essex County19
- Bergen County17
- Burlington County17
- Mercer County15
- Morris County15
- Somerset County15
- Middlesex County14
- Monmouth County14
- Hudson County13
- Hunterdon County13
- Passaic County12
- Union County11
- Camden County10
- Gloucester County10
- Ocean County10
- Warren County10
- Salem County6
- Sussex County6
- Cumberland County1
- Atlantic County1
- Cape May County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Rebuilt daily.