Alert archive / New Jersey / Passaic County
Weather alerts in Passaic County, New Jersey, 2019
189 weather alerts in 2019, 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 2019. Tap one for its archive.
- Alerts
- 189
- Warnings
- 40
- Watches
- 27
- Advisories
- 58
- Busiest month
- July38 alerts
- Busiest day
- July 17, 201910 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, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 17 | 13 | 24% | 4 | 75% | 9 min |
| Flash flood warnings | 7 | 6 | 14% | 4 | 75% | 31 min |
Each office's whole area, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS New York, NY: tornado warnings | 3 | 1 | 67% | 2 | 50% | 0 min |
| NWS New York, NY: severe thunderstorm warnings | 91 | 61 | 33% | 238 | 78% | 20 min |
| NWS New York, NY: flash flood warnings | 28 | 25 | 11% | 83 | 72% | 58 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 |
|---|---|---|---|
| Dec 31, 9:09 PM EST | Areal Flood Advisory | OKX | 3 hr |
| Jan 7, 5:44 PM EST | Winter Weather Advisory | OKX | 13 hr |
| Jan 17, 3:31 PM EST | Winter Storm Watch | OKX | 36 hr |
| Jan 18, 3:19 PM EST | Winter Storm Warning | OKX | 48 hr |
| Jan 19, 3:50 AM EST | Winter Weather Advisory | OKX | 35 hr |
| Jan 19, 3:01 PM EST | Flash Flood Watch | OKX | 22 hr |
| Jan 19, 9:33 PM EST | Mesoscale Discussion | SPC | 3 hr |
| Jan 20, 3:36 AM EST | Wind Chill Advisory | OKX | 34 hr |
| Jan 20, 3:00 PM EST | Wind Advisory | OKX | 28 hr |
| Jan 23, 4:00 AM EST | Flash Flood Watch | OKX | 38 hr |
| Jan 24, 10:53 AM EST | Areal Flood Advisory | OKX | 7 hr |
| Jan 24, 5:33 PM EST | River Flood Warning | OKX | 4 hr |
| Jan 24, 5:50 PM EST | Areal Flood Advisory | OKX | 3 hr |
| Jan 24, 8:41 PM EST | Areal Flood Advisory | OKX | 4 hr |
| Jan 25, 10:32 AM EST | River Flood Warning | PHI | 69 hr |
| Jan 28, 3:44 PM EST | Winter Weather Advisory | OKX | 31 hr |
| Jan 30, 3:58 AM EST | Wind Chill Advisory | OKX | 30 hr |
| Jan 30, 3:59 AM EST | Wind Advisory | OKX | 18 hr |
| Jan 30, 11:10 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 30, 2:21 PM EST | Snow Squall Warning | PHI | 54 min |
| Jan 30, 2:39 PM EST | Snow Squall Warning | OKX | 66 min |
| Feb 10, 3:41 PM EST | Winter Storm Watch | OKX | 24 hr |
| Feb 11, 4:18 AM EST | Winter Weather Advisory | OKX | 50 hr |
| Feb 11, 3:55 PM EST | Winter Storm Warning | OKX | 38 hr |
| Feb 12, 10:48 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 12, 3:35 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 13, 12:58 PM EST | Special Weather Statement | OKX | 62 min |
| Feb 17, 4:39 AM EST | Winter Weather Advisory | OKX | 30 hr |
| Feb 18, 2:27 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 19, 3:10 PM EST | Winter Weather Advisory | OKX | 39 hr |
| Feb 20, 10:15 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 23, 3:18 PM EST | High Wind Watch | OKX | 13 hr |
| Feb 24, 3:54 AM EST | High Wind Warning | OKX | 36 hr |
| Feb 25, 3:58 PM EST | Wind Advisory | OKX | 5 hr |
| Mar 1, 3:17 PM EST | Winter Weather Advisory | OKX | 20 hr |
| Mar 2, 3:41 AM EST | Winter Storm Watch | OKX | 24 hr |
| Mar 3, 3:37 AM EST | Winter Storm Warning | OKX | 27 hr |
| Mar 3, 5:41 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Mar 3, 10:44 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Mar 9, 4:29 AM EST | Winter Weather Advisory | OKX | 29 hr |
| Mar 15, 7:06 PM EDT | Areal Flood Advisory | OKX | 114 min |
| Mar 15, 7:09 PM EDT | Special Weather Statement | OKX | 51 min |
| Mar 15, 7:40 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 15, 8:08 PM EDT | Severe Thunderstorm Warning | OKX | 37 min |
| Mar 15, 8:30 PM EDT | Areal Flood Advisory | OKX | 2 hr |
| Apr 2, 3:44 PM EDT | Fire Weather Watch | OKX | 13 hr |
| Apr 3, 4:20 AM EDT | Red Flag Warning | OKX | 22 hr |
| Apr 3, 4:20 AM EDT | Wind Advisory | OKX | 16 hr |
| Apr 3, 3:43 PM EDT | Fire Weather Watch | OKX | 13 hr |
| Apr 4, 4:27 AM EDT | Red Flag Warning | OKX | 16 hr |
| Apr 14, 11:56 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 15, 1:05 AM EDT | Tornado Watch | SPC | 5 hr |
| Apr 15, 3:24 AM EDT | Wind Advisory | OKX | 21 hr |
| Apr 15, 3:45 AM EDT | Special Weather Statement | OKX | 45 min |
| Apr 15, 3:50 AM EDT | Mesoscale Discussion | SPC | 55 min |
| Apr 15, 3:59 AM EDT | Areal Flood Advisory | PHI | 4 hr |
| Apr 15, 4:08 AM EDT | Severe Thunderstorm Warning | OKX | 37 min |
| Apr 15, 4:17 AM EDT | Areal Flood Advisory | OKX | 88 min |
| Apr 18, 4:10 PM EDT | Flash Flood Watch | OKX | 47 hr |
| Apr 20, 7:18 AM EDT | Areal Flood Advisory | OKX | 3 hr |
| Apr 28, 3:17 PM EDT | Frost Advisory | OKX | 18 hr |
| May 4, 12:58 AM EDT | Areal Flood Advisory | OKX | 2 hr |
| May 13, 3:01 PM EDT | River Flood Warning | PHI | 4 days |
| May 13, 5:27 PM EDT | Areal Flood Advisory | OKX | 2 hr |
| May 19, 6:55 PM EDT | Mesoscale Discussion | SPC | 95 min |
| May 19, 7:58 PM EDT | Special Weather Statement | OKX | 62 min |
| May 19, 8:07 PM EDT | Severe Thunderstorm Warning | OKX | 53 min |
| May 19, 8:49 PM EDT | Special Weather Statement | OKX | 26 min |
| May 19, 10:32 PM EDT | Special Weather Statement | OKX | 43 min |
| May 23, 9:24 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 26, 5:29 PM EDT | Severe Thunderstorm Warning | OKX | 28 min |
| May 28, 6:08 PM EDT | Mesoscale Discussion | SPC | 97 min |
| May 28, 8:07 PM EDT | Mesoscale Discussion | SPC | 113 min |
| May 28, 9:21 PM EDT | Areal Flood Advisory | OKX | 2 hr |
| May 29, 5:20 PM EDT | Areal Flood Advisory | OKX | 3 hr |
| May 30, 3:46 AM EDT | Flash Flood Watch | OKX | 17 hr |
| May 30, 5:27 PM EDT | Areal Flood Advisory | OKX | 3 hr |
| May 30, 6:23 PM EDT | Flash Flood Warning | OKX | 2 hr |
| Jun 2, 1:15 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 2, 3:05 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 2, 9:10 PM EDT | Severe Thunderstorm Warning | OKX | 35 min |
| Jun 20, 1:53 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 20, 6:48 PM EDT | Areal Flood Advisory | OKX | 117 min |
| Jun 25, 6:36 AM EDT | Areal Flood Advisory | OKX | 84 min |
| Jun 29, 11:34 AM EDT | Mesoscale Discussion | SPC | 86 min |
| Jun 29, 1:45 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Jun 29, 4:27 PM EDT | Severe Thunderstorm Warning | OKX | 48 min |
| Jun 30, 2:21 PM EDT | Special Weather Statement | OKX | 39 min |
| Jul 6, 1:48 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 11, 3:55 AM EDT | Flash Flood Watch | OKX | 18 hr |
| Jul 11, 4:09 PM EDT | Areal Flood Advisory | OKX | 3 hr |
| Jul 11, 4:35 PM EDT | Areal Flood Advisory | OKX | 81 min |
| Jul 11, 4:48 PM EDT | Flash Flood Warning | OKX | 4 hr |
| Jul 11, 5:00 PM EDT | Flash Flood Warning | OKX | 4 hr |
| Jul 11, 8:50 PM EDT | Areal Flood Advisory | OKX | 79 min |
| Jul 17, 5:16 AM EDT | Flash Flood Watch | OKX | 19 hr |
| Jul 17, 10:55 AM EDT | Heat Advisory | OKX | 9 hr |
| Jul 17, 1:03 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 17, 1:58 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 17, 3:59 PM EDT | Excessive Heat Watch | OKX | 24 hr |
| Jul 17, 3:59 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 17, 6:50 PM EDT | Special Weather Statement | OKX | 40 min |
| Jul 17, 6:54 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Jul 17, 7:01 PM EDT | Areal Flood Advisory | OKX | 3 hr |
| Jul 17, 7:19 PM EDT | Severe Thunderstorm Warning | OKX | 41 min |
| Jul 18, 1:49 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 18, 2:50 PM EDT | Areal Flood Advisory | OKX | 115 min |
| Jul 18, 3:43 PM EDT | Excessive Heat Warning | OKX | 3 days |
| Jul 21, 4:00 AM EDT | Flash Flood Watch | OKX | 55 hr |
| Jul 21, 5:44 PM EDT | Special Weather Statement | OKX | 46 min |
| Jul 22, 1:11 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Jul 22, 2:17 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 22, 2:59 PM EDT | Severe Thunderstorm Warning | OKX | 61 min |
| Jul 22, 3:38 PM EDT | Severe Thunderstorm Warning | OKX | 52 min |
| Jul 22, 4:20 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Jul 22, 4:30 PM EDT | Areal Flood Advisory | OKX | 3 hr |
| Jul 22, 4:58 PM EDT | Flash Flood Warning | OKX | 3 hr |
| Jul 22, 5:01 PM EDT | Severe Thunderstorm Warning | OKX | 59 min |
| Jul 22, 5:16 PM EDT | Severe Thunderstorm Warning | OKX | 44 min |
| Jul 22, 8:51 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Jul 23, 4:18 AM EDT | Areal Flood Advisory | OKX | 117 min |
| Jul 23, 5:03 AM EDT | Flash Flood Warning | OKX | 117 min |
| Jul 29, 3:36 PM EDT | Heat Advisory | OKX | 29 hr |
| Jul 31, 12:39 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Jul 31, 1:17 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 31, 4:19 PM EDT | Mesoscale Discussion | SPC | 56 min |
| Aug 3, 9:24 PM EDT | Special Weather Statement | OKX | 66 min |
| Aug 3, 9:48 PM EDT | Areal Flood Advisory | OKX | 87 min |
| Aug 3, 11:08 PM EDT | Areal Flood Advisory | OKX | 97 min |
| Aug 7, 1:02 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Aug 7, 2:10 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 7, 2:18 PM EDT | Severe Thunderstorm Warning | OKX | 42 min |
| Aug 7, 2:30 PM EDT | Areal Flood Advisory | OKX | 4 hr |
| Aug 7, 2:49 PM EDT | Flash Flood Warning | OKX | 3 hr |
| Aug 7, 2:56 PM EDT | Severe Thunderstorm Warning | OKX | 21 min |
| Aug 7, 3:57 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Aug 7, 5:43 PM EDT | Flash Flood Warning | OKX | 3 hr |
| Aug 8, 4:43 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Aug 8, 6:31 PM EDT | Special Weather Statement | OKX | 44 min |
| Aug 8, 7:11 PM EDT | Severe Thunderstorm Warning | OKX | 36 min |
| Aug 8, 7:19 PM EDT | Severe Thunderstorm Warning | OKX | 41 min |
| Aug 18, 12:31 PM EDT | Heat Advisory | OKX | 30 hr |
| Aug 18, 6:11 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 18, 6:52 PM EDT | Special Weather Statement | OKX | 53 min |
| Aug 18, 7:41 PM EDT | Special Weather Statement | OKX | 64 min |
| Aug 19, 1:38 PM EDT | Mesoscale Discussion | SPC | 67 min |
| Aug 19, 2:39 PM EDT | Special Weather Statement | OKX | 51 min |
| Aug 21, 11:31 AM EDT | Mesoscale Discussion | SPC | 119 min |
| Aug 21, 1:53 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 21, 3:55 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Aug 21, 6:20 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Aug 22, 3:45 PM EDT | Special Weather Statement | OKX | 45 min |
| Aug 22, 7:46 PM EDT | Special Weather Statement | OKX | 59 min |
| Sep 4, 12:53 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Sep 4, 3:27 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Sep 4, 4:00 PM EDT | Special Weather Statement | PHI | 30 min |
| Sep 4, 4:10 PM EDT | Special Weather Statement | OKX | 50 min |
| Sep 23, 11:06 PM EDT | Special Weather Statement | OKX | 39 min |
| Sep 23, 11:52 PM EDT | Special Weather Statement | OKX | 38 min |
| Oct 4, 4:30 AM EDT | Frost Advisory | OKX | 28 hr |
| Oct 15, 3:20 PM EDT | Flash Flood Watch | OKX | 34 hr |
| Oct 16, 4:10 AM EDT | Wind Advisory | OKX | 21 hr |
| Oct 16, 3:57 PM EDT | Areal Flood Advisory | OKX | 2 hr |
| Oct 16, 4:18 PM EDT | Special Weather Statement | OKX | 27 min |
| Oct 16, 6:58 PM EDT | Areal Flood Advisory | OKX | 3 hr |
| Oct 17, 12:45 AM EDT | High Wind Warning | OKX | 13 hr |
| Oct 17, 1:43 PM EDT | Wind Advisory | OKX | 4 hr |
| Oct 18, 3:30 AM EDT | Frost Advisory | OKX | 30 hr |
| Oct 27, 12:48 PM EDT | Areal Flood Advisory | OKX | 3 hr |
| Oct 30, 4:04 PM EDT | Wind Advisory | OKX | 44 hr |
| Oct 31, 4:02 AM EDT | Freeze Watch | OKX | 36 hr |
| Oct 31, 4:46 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Oct 31, 7:56 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Oct 31, 9:58 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 31, 11:29 PM EDT | Special Weather Statement | OKX | 91 min |
| Oct 31, 11:34 PM EDT | Severe Thunderstorm Warning | OKX | 56 min |
| Nov 1, 12:28 AM EDT | Severe Thunderstorm Warning | OKX | 62 min |
| Nov 1, 3:43 PM EDT | Frost Advisory | OKX | 18 hr |
| Nov 1, 3:43 PM EDT | Freeze Warning | OKX | 18 hr |
| Nov 3, 3:42 AM EST | Frost Advisory | OKX | 29 hr |
| Nov 17, 3:33 AM EST | Winter Weather Advisory | OKX | 30 hr |
| Nov 29, 4:03 PM EST | Winter Storm Watch | OKX | 37 hr |
| Nov 30, 4:41 PM EST | Winter Weather Advisory | OKX | 62 hr |
| Dec 1, 4:33 AM EST | Winter Storm Warning | OKX | 50 hr |
| Dec 2, 2:33 PM EST | Special Weather Statement | OKX | 57 min |
| Dec 15, 3:39 PM EST | Winter Weather Advisory | OKX | 54 hr |
| Dec 18, 1:27 PM EST | Special Weather Statement | OKX | 108 min |
| Dec 18, 3:18 PM EST | Snow Squall Warning | OKX | 57 min |
| Dec 30, 3:03 PM EST | Special Weather Statement | OKX | 42 min |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20182020
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.