Alert archive / New Jersey / Passaic County
Weather alerts in Passaic County, New Jersey, 2024
184 weather alerts in 2024, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Passaic County and its neighbors
Each county as a circle sized by its count in 2024. Tap one for its archive.
- Alerts
- 184
- Warnings
- 57
- Watches
- 28
- Advisories
- 55
- Busiest month
- August42 alerts
- Busiest day
- January 9, 20248 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Passaic County, 2024
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 15 | 11 | 27% | 7 | 86% | 21 min |
| Flash flood warnings | 5 | 4 | 20% | 8 | 100% | 56 min |
Each office's whole area, 2024
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS New York, NY: tornado warnings | 1 | 0 | 100% | 0 | ||
| NWS New York, NY: severe thunderstorm warnings | 87 | 64 | 26% | 261 | 89% | 21 min |
| NWS New York, NY: flash flood warnings | 29 | 18 | 38% | 145 | 90% | 108 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 | Lasted |
|---|---|---|---|
| Jan 4, 3:19 PM EST | Winter Storm Watch | OKX | 36 hr |
| Jan 5, 2:58 PM EST | Winter Storm Warning | OKX | 36 hr |
| Jan 5, 2:58 PM EST | Winter Weather Advisory | OKX | 49 hr |
| Jan 6, 4:27 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Jan 7, 3:41 PM EST | Flood Watch | OKX | 61 hr |
| Jan 8, 3:18 PM EST | Wind Advisory | OKX | 48 hr |
| Jan 9, 2:56 PM EST | River Flood Warning | OKX | 54 hr |
| Jan 9, 3:18 PM EST | River Flood Warning | PHI | 41 hr |
| Jan 9, 3:23 PM EST | River Flood Warning | PHI | 56 hr |
| Jan 9, 3:29 PM EST | River Flood Warning | PHI | 9 days |
| Jan 9, 3:37 PM EST | River Flood Warning | PHI | 8 days |
| Jan 9, 3:40 PM EST | River Flood Warning | PHI | 21 days |
| Jan 9, 3:45 PM EST | River Flood Warning | PHI | 51 hr |
| Jan 9, 3:47 PM EST | River Flood Warning | PHI | 51 hr |
| Jan 9, 7:05 PM EST | Areal Flood Advisory | OKX | 95 min |
| Jan 9, 7:54 PM EST | Areal Flood Advisory | OKX | 51 min |
| Jan 9, 8:40 PM EST | Areal Flood Warning | OKX | 17 hr |
| Jan 9, 8:45 PM EST | Areal Flood Warning | OKX | 6 hr |
| Jan 11, 3:27 PM EST | Flood Watch | OKX | 43 hr |
| Jan 13, 6:45 AM EST | River Flood Warning | PHI | 15 hr |
| Jan 14, 10:47 AM EST | Wind Advisory | OKX | 9 hr |
| Jan 14, 11:49 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 15, 3:27 AM EST | Winter Weather Advisory | OKX | 40 hr |
| Jan 16, 8:49 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 17, 5:07 AM EST | River Flood Warning | PHI | 1 min |
| Jan 18, 3:13 PM EST | Winter Weather Advisory | OKX | 24 hr |
| Jan 23, 3:46 AM EST | Winter Weather Advisory | OKX | 30 hr |
| Jan 24, 6:22 PM EST | Dense Fog Advisory | OKX | 7 hr |
| Feb 10, 3:17 PM EST | Winter Storm Watch | OKX | 24 hr |
| Feb 11, 3:27 PM EST | Winter Storm Warning | OKX | 47 hr |
| Feb 16, 4:01 AM EST | Winter Weather Advisory | OKX | 30 hr |
| Feb 27, 3:34 PM EST | Wind Advisory | OKX | 36 hr |
| Mar 5, 2:27 PM EST | Flood Watch | OKX | 36 hr |
| Mar 6, 10:26 AM EST | River Flood Warning | PHI | 25 hr |
| Mar 8, 3:35 PM EST | Flood Watch | OKX | 35 hr |
| Mar 9, 9:52 AM EST | River Flood Warning | PHI | 5 days |
| Mar 9, 9:58 PM EST | River Flood Warning | PHI | 4 days |
| Mar 9, 9:59 PM EST | River Flood Warning | PHI | 3 days |
| Mar 9, 11:00 PM EST | Areal Flood Advisory | OKX | 2 hr |
| Mar 9, 11:31 PM EST | Areal Flood Warning | OKX | 67 min |
| Mar 10, 12:38 AM EST | Areal Flood Advisory | OKX | 3 hr |
| Mar 10, 3:31 AM EDT | High Wind Watch | OKX | 12 hr |
| Mar 10, 3:17 PM EDT | Wind Advisory | OKX | 28 hr |
| Mar 21, 3:55 PM EDT | Flood Watch | OKX | 52 hr |
| Mar 23, 4:01 AM EDT | Wind Advisory | OKX | 22 hr |
| Mar 23, 11:15 AM EDT | Areal Flood Advisory | OKX | 118 min |
| Mar 23, 1:08 PM EDT | Areal Flood Warning | OKX | 7 hr |
| Mar 23, 3:56 PM EDT | River Flood Warning | PHI | 3 days |
| Apr 2, 3:20 PM EDT | Wind Advisory | OKX | 37 hr |
| Apr 3, 3:49 AM EDT | Flood Watch | OKX | 24 hr |
| Apr 3, 5:46 PM EDT | River Flood Warning | PHI | 5 days |
| Apr 4, 4:40 AM EDT | River Flood Warning | PHI | 11 hr |
| Apr 4, 7:42 AM EDT | River Flood Warning | PHI | 3 days |
| Apr 4, 7:43 AM EDT | River Flood Warning | PHI | 4 days |
| Apr 22, 3:55 AM EDT | Frost Advisory | OKX | 28 hr |
| Apr 23, 3:00 PM EDT | Freeze Watch | OKX | 24 hr |
| Apr 24, 3:17 PM EDT | Freeze Warning | OKX | 18 hr |
| Apr 25, 4:23 AM EDT | Freeze Watch | OKX | 10 hr |
| Apr 25, 2:19 PM EDT | Frost Advisory | OKX | 18 hr |
| Apr 25, 2:19 PM EDT | Freeze Warning | OKX | 18 hr |
| Apr 26, 2:35 PM EDT | Frost Advisory | OKX | 18 hr |
| May 23, 9:09 AM EDT | Severe Thunderstorm Warning | OKX | 51 min |
| May 27, 11:53 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 27, 1:42 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 27, 4:40 PM EDT | Mesoscale Discussion | SPC | 95 min |
| May 27, 7:40 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 27, 11:14 PM EDT | Areal Flood Advisory | OKX | 81 min |
| May 29, 8:55 PM EDT | Areal Flood Advisory | OKX | 3 hr |
| May 29, 9:09 PM EDT | Flash Flood Warning | OKX | 81 min |
| Jun 6, 12:58 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Jun 14, 2:34 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Jun 14, 4:54 PM EDT | Special Weather Statement | OKX | 66 min |
| Jun 14, 4:57 PM EDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Jun 14, 5:29 PM EDT | Severe Thunderstorm Warning | OKX | 46 min |
| Jun 14, 5:57 PM EDT | Special Weather Statement | OKX | 48 min |
| Jun 14, 6:20 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Jun 16, 3:49 PM EDT | Heat Advisory | OKX | 7 days |
| Jun 21, 11:38 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 22, 5:13 PM EDT | Severe Thunderstorm Warning | OKX | 47 min |
| Jun 23, 3:23 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 26, 4:02 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Jun 26, 6:19 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 26, 7:44 PM EDT | Severe Thunderstorm Warning | OKX | 46 min |
| Jun 26, 8:32 PM EDT | Severe Thunderstorm Warning | OKX | 28 min |
| Jun 30, 9:55 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 30, 11:09 AM EDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Jun 30, 1:59 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Jun 30, 2:26 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Jun 30, 2:58 PM EDT | Areal Flood Advisory | OKX | 3 hr |
| Jun 30, 3:03 PM EDT | Special Weather Statement | OKX | 42 min |
| Jun 30, 3:22 PM EDT | Severe Thunderstorm Warning | OKX | 32 min |
| Jun 30, 4:21 PM EDT | Areal Flood Advisory | OKX | 46 min |
| Jul 4, 3:20 PM EDT | Heat Advisory | OKX | 53 hr |
| Jul 5, 7:10 PM EDT | Special Weather Statement | OKX | 35 min |
| Jul 5, 7:19 PM EDT | Areal Flood Advisory | OKX | 94 min |
| Jul 5, 7:45 PM EDT | Special Weather Statement | OKX | 45 min |
| Jul 6, 4:00 AM EDT | Special Weather Statement | OKX | 45 min |
| Jul 6, 4:15 AM EDT | Severe Thunderstorm Warning | OKX | 45 min |
| Jul 6, 5:30 AM EDT | Areal Flood Advisory | OKX | 2 hr |
| Jul 7, 3:35 PM EDT | Heat Advisory | OKX | 3 days |
| Jul 12, 3:56 AM EDT | Flood Watch | OKX | 29 hr |
| Jul 13, 3:17 AM EDT | Heat Advisory | OKX | 5 days |
| Jul 15, 2:14 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 16, 2:35 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Jul 16, 3:36 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 16, 5:55 PM EDT | Severe Thunderstorm Warning | OKX | 50 min |
| Jul 16, 6:20 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Jul 17, 12:27 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 17, 12:58 PM EDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Jul 17, 3:21 PM EDT | Severe Thunderstorm Warning | OKX | 39 min |
| Jul 17, 3:50 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Jul 17, 7:11 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 17, 8:20 PM EDT | Special Weather Statement | OKX | 40 min |
| Jul 17, 8:52 PM EDT | Severe Thunderstorm Warning | OKX | 23 min |
| Jul 17, 9:08 PM EDT | Severe Thunderstorm Warning | OKX | 52 min |
| Jul 31, 3:40 AM EDT | Heat Advisory | OKX | 4 days |
| Jul 31, 8:08 PM EDT | Special Weather Statement | OKX | 37 min |
| Jul 31, 8:43 PM EDT | Special Weather Statement | OKX | 47 min |
| Aug 2, 6:01 PM EDT | Special Weather Statement | OKX | 44 min |
| Aug 2, 6:08 PM EDT | Severe Thunderstorm Warning | OKX | 52 min |
| Aug 2, 6:35 PM EDT | Areal Flood Advisory | OKX | 85 min |
| Aug 2, 7:01 PM EDT | Mesoscale Discussion | SPC | 59 min |
| Aug 3, 12:37 PM EDT | Flood Watch | OKX | 8 hr |
| Aug 3, 12:56 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Aug 3, 1:20 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 3, 2:20 PM EDT | Severe Thunderstorm Warning | OKX | 40 min |
| Aug 3, 2:53 PM EDT | Mesoscale Discussion | SPC | 67 min |
| Aug 3, 2:57 PM EDT | Special Weather Statement | OKX | 48 min |
| Aug 3, 3:46 PM EDT | Flash Flood Warning | OKX | 119 min |
| Aug 3, 8:00 PM EDT | Areal Flood Advisory | OKX | 2 hr |
| Aug 4, 4:19 PM EDT | Areal Flood Advisory | OKX | 92 min |
| Aug 5, 3:06 PM EDT | Flood Watch | OKX | 36 hr |
| Aug 6, 1:06 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Aug 6, 1:54 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 6, 5:25 PM EDT | Areal Flood Advisory | OKX | 2 hr |
| Aug 6, 5:43 PM EDT | Flash Flood Warning | OKX | 4 hr |
| Aug 6, 6:16 PM EDT | Areal Flood Advisory | OKX | 3 hr |
| Aug 6, 6:23 PM EDT | Special Weather Statement | OKX | 52 min |
| Aug 8, 3:34 PM EDT | Wind Advisory | OKX | 28 hr |
| Aug 9, 6:17 AM EDT | Tornado Watch | SPC | 8 hr |
| Aug 9, 6:49 AM EDT | Areal Flood Advisory | OKX | 116 min |
| Aug 9, 10:26 AM EDT | Mesoscale Discussion | SPC | 94 min |
| Aug 9, 1:27 PM EDT | Tornado Watch | SPC | 7 hr |
| Aug 17, 3:14 PM EDT | Flood Watch | OKX | 35 hr |
| Aug 18, 4:07 AM EDT | Areal Flood Advisory | OKX | 113 min |
| Aug 18, 1:09 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Aug 18, 2:02 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 18, 4:30 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Aug 18, 5:46 PM EDT | Flash Flood Warning | OKX | 3 hr |
| Aug 18, 5:54 PM EDT | Severe Thunderstorm Warning | OKX | 51 min |
| Aug 18, 6:28 PM EDT | Severe Thunderstorm Warning | OKX | 47 min |
| Aug 18, 6:38 PM EDT | Flash Flood Warning | OKX | 3 hr |
| Aug 18, 9:36 PM EDT | Areal Flood Advisory | OKX | 3 hr |
| Aug 18, 10:18 PM EDT | Areal Flood Advisory | OKX | 3 hr |
| Aug 19, 2:25 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 20, 7:38 PM EDT | River Flood Warning | PHI | 16 hr |
| Aug 26, 8:53 PM EDT | Areal Flood Advisory | OKX | 3 hr |
| Aug 27, 3:45 AM EDT | Heat Advisory | OKX | 40 hr |
| Oct 14, 3:08 PM EDT | Frost Advisory | OKX | 18 hr |
| Oct 15, 3:12 PM EDT | Freeze Watch | OKX | 12 hr |
| Oct 16, 3:30 AM EDT | Frost Advisory | OKX | 30 hr |
| Oct 16, 3:30 AM EDT | Freeze Warning | OKX | 30 hr |
| Oct 17, 3:26 PM EDT | Frost Advisory | OKX | 18 hr |
| Oct 17, 3:26 PM EDT | Freeze Warning | OKX | 18 hr |
| Oct 18, 3:28 PM EDT | Frost Advisory | OKX | 18 hr |
| Oct 25, 7:03 PM EDT | Red Flag Warning | OKX | 24 hr |
| Oct 26, 3:42 PM EDT | Frost Advisory | OKX | 17 hr |
| Oct 31, 3:28 PM EDT | Red Flag Warning | OKX | 28 hr |
| Nov 7, 3:12 PM EST | Red Flag Warning | OKX | 51 hr |
| Nov 11, 3:24 PM EST | Red Flag Warning | OKX | 27 hr |
| Nov 14, 3:23 PM EST | Fire Weather Watch | OKX | 24 hr |
| Nov 15, 3:26 PM EST | Red Flag Warning | OKX | 27 hr |
| Nov 21, 3:26 PM EST | Winter Weather Advisory | OKX | 27 hr |
| Dec 3, 3:22 PM EST | Wind Advisory | OKX | 54 hr |
| Dec 5, 9:17 AM EST | Special Weather Statement | OKX | 58 min |
| Dec 5, 9:27 AM EST | Snow Squall Warning | OKX | 48 min |
| Dec 5, 9:50 AM EST | Mesoscale Discussion | SPC | 2 hr |
| Dec 5, 10:13 AM EST | Snow Squall Warning | OKX | 62 min |
| Dec 11, 5:26 PM EST | Areal Flood Advisory | OKX | 4 hr |
| Dec 11, 5:59 PM EST | Areal Flood Advisory | OKX | 3 hr |
| Dec 14, 3:40 PM EST | Winter Weather Advisory | OKX | 43 hr |
| Dec 27, 3:41 AM EST | Winter Weather Advisory | OKX | 29 hr |
| Dec 27, 11:44 PM EST | Special Weather Statement | OKX | 61 min |
| Dec 28, 6:57 PM EST | Dense Fog Advisory | OKX | 12 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 15 |
| Severe Thunderstorm Watch | 9 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 30 |
| Special Weather Statement | 14 |
| Flooding | |
| Areal Flood Warning | 4 |
| Flash Flood Warning | 5 |
| River Flood Warning | 20 |
| Flood Watch | 10 |
| Areal Flood Advisory | 23 |
| Winter | |
| Snow Squall Warning | 2 |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 2 |
| Winter Weather Advisory | 8 |
| Heat | |
| Heat Advisory | 6 |
| Cold | |
| Freeze Warning | 4 |
| Freeze Watch | 3 |
| Frost Advisory | 8 |
| Wind and dust | |
| High Wind Watch | 1 |
| Wind Advisory | 8 |
| Fire | |
| Red Flag Warning | 5 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 2 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe 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.