Alert archive / New Jersey / Hudson County
Weather alerts in Hudson County, New Jersey, 2009
152 weather alerts in 2009, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Hudson County and its neighbors
Each county as a circle sized by its count in 2009. Tap one for its archive.
- Alerts
- 152
- Warnings
- 25
- Watches
- 27
- Advisories
- 61
- Busiest month
- July43 alerts
- Busiest day
- July 29, 200914 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Hudson County, 2009
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 9 | 4 | 56% | 6 | 100% | 31 min |
| Flash flood warnings | 6 | 4 | 33% | 3 | 33% | 82 min |
Each office's whole area, 2009
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS New York, NY: tornado warnings | 12 | 1 | 92% | 3 | 33% | 7 min |
| NWS New York, NY: severe thunderstorm warnings | 119 | 61 | 49% | 154 | 85% | 25 min |
| NWS New York, NY: flash flood warnings | 45 | 27 | 40% | 84 | 80% | 41 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, 7:01 PM EST | Wind Advisory | OKX | 4 hr |
| Jan 6, 4:15 AM EST | Winter Weather Advisory | OKX | 19 hr |
| Jan 6, 11:22 PM EST | Freezing Rain Advisory | OKX | 13 hr |
| Jan 7, 12:10 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 7, 6:08 AM EST | Mesoscale Discussion | SPC | 3 hr |
| Jan 7, 9:23 AM EST | Areal Flood Advisory | OKX | 112 min |
| Jan 9, 3:51 AM EST | Winter Storm Watch | OKX | 11 hr |
| Jan 9, 3:12 PM EST | Winter Storm Warning | OKX | 33 hr |
| Jan 9, 3:12 PM EST | Winter Weather Advisory | OKX | 42 hr |
| Jan 10, 7:58 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 14, 3:07 PM EST | Winter Weather Advisory | OKX | 25 hr |
| Jan 27, 4:13 AM EST | Winter Weather Advisory | OKX | 36 hr |
| Jan 28, 12:31 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 3, 4:03 AM EST | Winter Weather Advisory | OKX | 23 hr |
| Feb 11, 3:49 AM EST | High Wind Watch | OKX | 11 hr |
| Feb 11, 2:56 PM EST | Wind Advisory | OKX | 35 hr |
| Feb 12, 5:13 AM EST | High Wind Warning | OKX | 15 hr |
| Feb 28, 3:37 AM EST | Winter Storm Watch | OKX | 27 hr |
| Mar 1, 3:48 AM EST | Winter Storm Warning | OKX | 39 hr |
| Mar 1, 9:09 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Mar 2, 12:41 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Mar 23, 10:20 AM EDT | Red Flag Warning | OKX | 13 hr |
| Apr 3, 2:08 PM EDT | Areal Flood Advisory | OKX | 82 min |
| Apr 3, 3:58 PM EDT | Wind Advisory | OKX | 28 hr |
| Apr 16, 3:52 PM EDT | Fire Weather Watch | OKX | 12 hr |
| Apr 17, 3:48 AM EDT | Red Flag Warning | OKX | 15 hr |
| Apr 27, 3:58 PM EDT | Fire Weather Watch | OKX | 12 hr |
| Apr 28, 10:39 AM EDT | Red Flag Warning | OKX | 9 hr |
| May 7, 1:41 PM EDT | Areal Flood Advisory | OKX | 64 min |
| May 7, 2:47 PM EDT | Areal Flood Advisory | OKX | 88 min |
| May 15, 10:44 PM EDT | Dense Fog Advisory | OKX | 11 hr |
| May 24, 11:49 AM EDT | Mesoscale Discussion | SPC | 116 min |
| May 24, 7:11 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Jun 4, 3:57 PM EDT | Flash Flood Watch | OKX | 12 hr |
| Jun 9, 6:01 AM EDT | Mesoscale Discussion | SPC | 59 min |
| Jun 9, 8:21 AM EDT | Areal Flood Advisory | OKX | 114 min |
| Jun 15, 5:31 PM EDT | Areal Flood Advisory | OKX | 71 hr |
| Jun 18, 5:02 AM EDT | Flash Flood Watch | OKX | 11 hr |
| Jun 19, 3:34 PM EDT | Flood Watch | OKX | 37 hr |
| Jun 21, 12:05 PM EDT | Coastal Flood Advisory | OKX | 12 hr |
| Jun 22, 2:16 PM EDT | Coastal Flood Advisory | OKX | 8 hr |
| Jun 23, 3:20 PM EDT | Coastal Flood Advisory | OKX | 10 hr |
| Jun 24, 2:06 PM EDT | Coastal Flood Advisory | OKX | 10 hr |
| Jun 26, 2:19 PM EDT | Mesoscale Discussion | SPC | 56 min |
| Jun 26, 2:42 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 26, 5:26 PM EDT | Severe Thunderstorm Warning | OKX | 64 min |
| Jun 26, 6:02 PM EDT | Areal Flood Advisory | OKX | 118 min |
| Jun 26, 6:27 PM EDT | Severe Thunderstorm Warning | OKX | 45 min |
| Jun 26, 7:33 PM EDT | Mesoscale Discussion | SPC | 57 min |
| Jun 30, 11:37 AM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 30, 2:18 PM EDT | Mesoscale Discussion | SPC | 57 min |
| Jun 30, 4:25 PM EDT | Mesoscale Discussion | SPC | 65 min |
| Jun 30, 4:41 PM EDT | Areal Flood Advisory | OKX | 3 hr |
| Jun 30, 6:06 PM EDT | Mesoscale Discussion | SPC | 54 min |
| Jul 1, 12:03 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jul 1, 3:49 PM EDT | Flash Flood Watch | OKX | 30 hr |
| Jul 2, 11:27 AM EDT | Areal Flood Advisory | OKX | 93 min |
| Jul 2, 2:48 PM EDT | Areal Flood Advisory | OKX | 87 min |
| Jul 2, 3:20 PM EDT | Mesoscale Discussion | SPC | 55 min |
| Jul 7, 11:05 AM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 7, 2:00 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Jul 7, 3:18 PM EDT | Areal Flood Advisory | OKX | 59 min |
| Jul 7, 4:41 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 16, 4:04 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Jul 17, 6:18 PM EDT | Mesoscale Discussion | SPC | 57 min |
| Jul 23, 3:46 PM EDT | Coastal Flood Advisory | OKX | 12 hr |
| Jul 26, 4:35 AM EDT | Flash Flood Watch | OKX | 19 hr |
| Jul 26, 3:14 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 26, 3:51 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 26, 5:52 PM EDT | Areal Flood Advisory | OKX | 113 min |
| Jul 26, 5:58 PM EDT | Severe Thunderstorm Warning | OKX | 32 min |
| Jul 26, 6:14 PM EDT | Flash Flood Warning | OKX | 49 min |
| Jul 26, 6:26 PM EDT | Severe Thunderstorm Warning | OKX | 34 min |
| Jul 26, 6:37 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Jul 26, 8:41 PM EDT | Areal Flood Advisory | OKX | 3 hr |
| Jul 26, 8:54 PM EDT | Severe Thunderstorm Warning | OKX | 39 min |
| Jul 26, 10:06 PM EDT | Mesoscale Discussion | SPC | 54 min |
| Jul 27, 2:20 PM EDT | Mesoscale Discussion | SPC | 55 min |
| Jul 27, 3:41 PM EDT | Areal Flood Advisory | OKX | 3 hr |
| Jul 29, 4:21 AM EDT | Flash Flood Watch | OKX | 24 hr |
| Jul 29, 12:22 PM EDT | Mesoscale Discussion | SPC | 23 min |
| Jul 29, 12:49 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 29, 1:43 PM EDT | Areal Flood Advisory | OKX | 92 min |
| Jul 29, 1:48 PM EDT | Severe Thunderstorm Warning | OKX | 57 min |
| Jul 29, 1:53 PM EDT | Flash Flood Warning | OKX | 2 hr |
| Jul 29, 2:22 PM EDT | Mesoscale Discussion | SPC | 23 min |
| Jul 29, 2:46 PM EDT | Severe Thunderstorm Warning | OKX | 29 min |
| Jul 29, 2:55 PM EDT | Flash Flood Warning | OKX | 2 hr |
| Jul 29, 5:01 PM EDT | Flash Flood Warning | OKX | 119 min |
| Jul 29, 5:05 PM EDT | Mesoscale Discussion | SPC | 55 min |
| Jul 29, 6:49 PM EDT | Severe Thunderstorm Warning | OKX | 29 min |
| Jul 29, 7:06 PM EDT | Flash Flood Warning | OKX | 114 min |
| Jul 29, 7:14 PM EDT | Mesoscale Discussion | SPC | 61 min |
| Jul 30, 3:50 PM EDT | Flash Flood Watch | OKX | 27 hr |
| Jul 31, 1:18 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 31, 2:53 PM EDT | Areal Flood Advisory | OKX | 112 min |
| Jul 31, 3:05 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Aug 2, 10:01 AM EDT | Mesoscale Discussion | SPC | 119 min |
| Aug 2, 12:23 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 2, 1:28 PM EDT | Flash Flood Warning | OKX | 2 hr |
| Aug 9, 7:11 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 10, 1:41 AM EDT | Areal Flood Advisory | OKX | 2 hr |
| Aug 10, 4:40 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 12, 1:01 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Aug 12, 2:18 PM EDT | Areal Flood Advisory | OKX | 87 min |
| Aug 13, 4:35 AM EDT | Flash Flood Watch | OKX | 10 hr |
| Aug 18, 9:43 PM EDT | Severe Thunderstorm Warning | OKX | 47 min |
| Aug 21, 11:28 AM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 21, 12:35 PM EDT | Coastal Flood Advisory | OKX | 48 hr |
| Aug 21, 3:37 PM EDT | Flash Flood Watch | OKX | 36 hr |
| Aug 21, 5:55 PM EDT | Mesoscale Discussion | SPC | 80 min |
| Aug 22, 1:28 AM EDT | Areal Flood Advisory | OKX | 3 hr |
| Aug 22, 1:01 PM EDT | Areal Flood Advisory | OKX | 89 min |
| Aug 23, 6:41 PM EDT | Areal Flood Advisory | OKX | 66 min |
| Aug 28, 9:13 AM EDT | Areal Flood Advisory | OKX | 2 hr |
| Aug 28, 11:39 AM EDT | Areal Flood Advisory | OKX | 2 hr |
| Aug 28, 4:03 PM EDT | Flash Flood Watch | OKX | 23 hr |
| Sep 9, 3:53 PM EDT | Coastal Flood Advisory | OKX | 51 hr |
| Sep 16, 3:50 AM EDT | Coastal Flood Advisory | OKX | 32 hr |
| Oct 6, 4:40 PM EDT | Wind Advisory | OKX | 28 hr |
| Oct 14, 4:08 PM EDT | Coastal Flood Watch | OKX | 24 hr |
| Oct 15, 4:36 PM EDT | Coastal Flood Watch | OKX | 24 hr |
| Oct 15, 4:36 PM EDT | Coastal Flood Warning | OKX | 19 hr |
| Oct 16, 12:30 PM EDT | Coastal Flood Advisory | OKX | 25 hr |
| Oct 17, 10:59 AM EDT | Coastal Flood Watch | OKX | 4 hr |
| Oct 17, 3:18 PM EDT | Coastal Flood Warning | OKX | 23 hr |
| Oct 18, 2:28 PM EDT | Coastal Flood Advisory | OKX | 11 hr |
| Oct 19, 9:18 AM EDT | Coastal Flood Advisory | OKX | 3 hr |
| Oct 24, 5:37 PM EDT | Areal Flood Advisory | OKX | 4 hr |
| Oct 24, 7:02 PM EDT | Mesoscale Discussion | SPC | 58 min |
| Nov 6, 4:22 AM EST | Frost Advisory | OKX | 28 hr |
| Nov 12, 3:26 PM EST | Coastal Flood Advisory | OKX | 19 hr |
| Nov 13, 10:55 AM EST | Coastal Flood Advisory | OKX | 9 hr |
| Nov 13, 4:44 PM EST | Coastal Flood Warning | OKX | 17 hr |
| Nov 13, 4:44 PM EST | Coastal Flood Advisory | OKX | 17 hr |
| Nov 27, 3:51 AM EST | Wind Advisory | OKX | 36 hr |
| Dec 2, 4:08 PM EST | Coastal Flood Advisory | OKX | 19 hr |
| Dec 3, 6:28 AM EST | Mesoscale Discussion | SPC | 62 min |
| Dec 8, 2:06 PM EST | Flash Flood Watch | OKX | 21 hr |
| Dec 8, 3:52 PM EST | Wind Advisory | OKX | 21 hr |
| Dec 9, 4:44 AM EST | Wind Advisory | OKX | 17 hr |
| Dec 9, 8:39 AM EST | Areal Flood Advisory | OKX | 111 min |
| Dec 9, 11:14 AM EST | Coastal Flood Advisory | OKX | 2 hr |
| Dec 10, 3:17 PM EST | Wind Advisory | OKX | 13 hr |
| Dec 18, 4:02 AM EST | Winter Storm Watch | OKX | 36 hr |
| Dec 18, 3:57 PM EST | Winter Storm Warning | OKX | 43 hr |
| Dec 19, 4:37 AM EST | Coastal Flood Advisory | OKX | 17 hr |
| Dec 19, 12:27 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Dec 19, 7:25 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Dec 26, 11:19 PM EST | Areal Flood Advisory | OKX | 11 hr |
| Dec 29, 3:54 AM EST | Wind Advisory | OKX | 15 hr |
| Dec 31, 3:52 AM EST | Winter Weather Advisory | OKX | 25 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 | 9 |
| Severe Thunderstorm Watch | 7 |
| Mesoscale Discussion | 39 |
| Flooding | |
| Flash Flood Warning | 6 |
| Flash Flood Watch | 10 |
| Flood Watch | 1 |
| Areal Flood Advisory | 26 |
| Winter | |
| Winter Storm Warning | 3 |
| Winter Storm Watch | 3 |
| Freezing Rain Advisory | 1 |
| Winter Weather Advisory | 6 |
| Cold | |
| Frost Advisory | 1 |
| Wind and dust | |
| High Wind Warning | 1 |
| High Wind Watch | 1 |
| Wind Advisory | 9 |
| Fire | |
| Red Flag Warning | 3 |
| Fire Weather Watch | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
| Coast and beach | |
| Coastal Flood Warning | 3 |
| Coastal Flood Watch | 3 |
| Coastal Flood Advisory | 17 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20082010
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.