Alert archive / New Jersey / Atlantic County
Weather alerts in Atlantic County, New Jersey, 2024
162 weather alerts in 2024, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Atlantic County and its neighbors
Each county as a circle sized by its count in 2024. Tap one for its archive.
- Alerts
- 162
- Warnings
- 38
- Watches
- 23
- Advisories
- 68
- Busiest month
- June23 alerts
- Busiest day
- July 17, 20247 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Atlantic County, 2024
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 15 | 13 | 13% | 2 | 100% | 22 min |
| Flash flood warnings | 1 | 1 | 0% | 0 |
Each office's whole area, 2024
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Philadelphia/Mount Holly: tornado warnings | 7 | 1 | 86% | 1 | 100% | 13 min |
| NWS Philadelphia/Mount Holly: severe thunderstorm warnings | 219 | 137 | 37% | 463 | 90% | 23 min |
| NWS Philadelphia/Mount Holly: flash flood warnings | 66 | 27 | 59% | 61 | 84% | 86 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 7, 3:15 PM EST | Flood Watch | PHI | 60 hr |
| Jan 7, 3:24 PM EST | High Wind Watch | PHI | 24 hr |
| Jan 8, 3:27 PM EST | High Wind Warning | PHI | 33 hr |
| Jan 9, 5:03 AM EST | Coastal Flood Advisory | PHI | 38 hr |
| Jan 9, 9:24 PM EST | Areal Flood Warning | PHI | 5 hr |
| Jan 10, 3:47 AM EST | Wind Advisory | PHI | 12 hr |
| Jan 11, 3:46 PM EST | Coastal Flood Advisory | PHI | 3 days |
| Jan 11, 3:48 PM EST | Wind Advisory | PHI | 49 hr |
| Jan 12, 10:05 AM EST | High Wind Warning | PHI | 17 hr |
| Jan 12, 10:05 AM EST | Wind Advisory | PHI | 31 hr |
| Jan 14, 2:48 AM EST | Wind Advisory | PHI | 15 hr |
| Jan 15, 4:12 AM EST | Winter Weather Advisory | PHI | 35 hr |
| Jan 17, 3:16 PM EST | Winter Weather Advisory | PHI | 53 hr |
| Jan 18, 2:48 PM EST | Winter Storm Warning | PHI | 29 hr |
| Jan 25, 6:41 PM EST | Dense Fog Advisory | PHI | 17 hr |
| Jan 26, 5:33 PM EST | Dense Fog Advisory | PHI | 16 hr |
| Jan 27, 4:04 PM EST | Coastal Flood Advisory | PHI | 4 days |
| Jan 28, 2:10 PM EST | Coastal Flood Advisory | PHI | 52 hr |
| Feb 5, 9:20 AM EST | Coastal Flood Advisory | PHI | 5 days |
| Feb 10, 3:22 PM EST | Coastal Flood Watch | PHI | 25 hr |
| Feb 10, 7:29 PM EST | Coastal Flood Advisory | PHI | 23 hr |
| Feb 11, 4:02 PM EST | Coastal Flood Warning | PHI | 48 hr |
| Feb 11, 4:02 PM EST | Coastal Flood Advisory | PHI | 63 hr |
| Feb 12, 3:52 AM EST | Wind Advisory | PHI | 34 hr |
| Feb 15, 3:33 PM EST | Winter Weather Advisory | PHI | 42 hr |
| Feb 27, 3:16 PM EST | Wind Advisory | PHI | 35 hr |
| Mar 7, 11:34 AM EST | Coastal Flood Advisory | PHI | 26 hr |
| Mar 8, 2:36 PM EST | Coastal Flood Advisory | PHI | 60 hr |
| Mar 9, 2:43 PM EST | Wind Advisory | PHI | 51 hr |
| Mar 9, 8:03 PM EST | Special Weather Statement | PHI | 27 min |
| Mar 10, 6:17 PM EDT | Special Weather Statement | PHI | 28 min |
| Mar 21, 8:58 AM EDT | Red Flag Warning | PHI | 10 hr |
| Mar 21, 3:29 PM EDT | Flood Watch | PHI | 51 hr |
| Mar 22, 2:17 PM EDT | Wind Advisory | PHI | 36 hr |
| Mar 23, 3:36 PM EDT | Coastal Flood Watch | PHI | 24 hr |
| Mar 24, 3:29 PM EDT | Coastal Flood Warning | PHI | 30 hr |
| Mar 25, 4:48 AM EDT | Coastal Flood Advisory | PHI | 59 hr |
| Mar 25, 6:10 AM EDT | Areal Flood Warning | PHI | 32 hr |
| Apr 1, 3:33 PM EDT | Coastal Flood Advisory | PHI | 4 days |
| Apr 2, 2:31 PM EDT | Coastal Flood Warning | PHI | 43 hr |
| Apr 3, 6:30 PM EDT | Special Weather Statement | PHI | 30 min |
| Apr 3, 7:01 PM EDT | Special Weather Statement | PHI | 29 min |
| Apr 3, 7:14 PM EDT | Coastal Flood Advisory | PHI | 10 hr |
| Apr 6, 3:39 PM EDT | Coastal Flood Advisory | PHI | 4 days |
| Apr 10, 10:56 AM EDT | Coastal Flood Advisory | PHI | 20 hr |
| Apr 11, 10:47 AM EDT | Coastal Flood Advisory | PHI | 36 hr |
| Apr 11, 2:00 PM EDT | Wind Advisory | PHI | 16 hr |
| Apr 14, 9:43 PM EDT | Special Weather Statement | PHI | 47 min |
| Apr 15, 4:47 PM EDT | Special Weather Statement | PHI | 58 min |
| Apr 21, 3:16 PM EDT | Frost Advisory | PHI | 18 hr |
| Apr 22, 9:51 AM EDT | Frost Advisory | PHI | 23 hr |
| Apr 22, 6:36 PM EDT | Freeze Warning | PHI | 14 hr |
| Apr 25, 1:12 AM EDT | Freeze Watch | PHI | 11 hr |
| Apr 25, 12:37 PM EDT | Freeze Warning | PHI | 20 hr |
| Apr 26, 1:59 PM EDT | Frost Advisory | PHI | 19 hr |
| May 7, 4:07 AM EDT | Coastal Flood Advisory | PHI | 25 hr |
| May 8, 5:06 AM EDT | Coastal Flood Advisory | PHI | 24 hr |
| May 9, 5:27 AM EDT | Coastal Flood Watch | PHI | 24 hr |
| May 9, 5:27 AM EDT | Coastal Flood Advisory | PHI | 25 hr |
| May 9, 4:47 PM EDT | Coastal Flood Warning | PHI | 34 hr |
| May 11, 1:28 PM EDT | Coastal Flood Advisory | PHI | 20 hr |
| May 26, 8:19 PM EDT | Dense Fog Advisory | PHI | 9 hr |
| 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, 7:40 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 5, 9:45 AM EDT | Coastal Flood Advisory | PHI | 19 hr |
| Jun 6, 2:26 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 6, 4:18 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jun 16, 3:47 AM EDT | Heat Advisory | PHI | 8 days |
| Jun 16, 3:14 PM EDT | Excessive Heat Watch | PHI | 6 days |
| Jun 22, 4:39 PM EDT | Rip Current Statement | PHI | 11 hr |
| Jun 22, 4:39 PM EDT | Rip Current Statement | PHI | 11 hr |
| Jun 23, 3:16 AM EDT | Rip Current Statement | PHI | 17 hr |
| Jun 23, 4:33 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 23, 5:56 PM EDT | Severe Thunderstorm Warning | PHI | 49 min |
| Jun 23, 6:32 PM EDT | Severe Thunderstorm Warning | PHI | 58 min |
| Jun 23, 6:39 PM EDT | Severe Thunderstorm Warning | PHI | 51 min |
| Jun 23, 7:13 PM EDT | Severe Thunderstorm Warning | PHI | 62 min |
| Jun 23, 8:34 PM EDT | Severe Thunderstorm Warning | PHI | 71 min |
| Jun 23, 10:17 PM EDT | Severe Thunderstorm Warning | PHI | 43 min |
| Jun 25, 5:01 PM EDT | Rip Current Statement | PHI | 27 hr |
| Jun 28, 4:37 PM EDT | Rip Current Statement | PHI | 27 hr |
| Jun 30, 7:23 AM EDT | Flash Flood Warning | PHI | 4 hr |
| Jun 30, 9:55 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 30, 3:21 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 30, 6:06 PM EDT | Severe Thunderstorm Warning | PHI | 39 min |
| Jun 30, 6:40 PM EDT | Severe Thunderstorm Warning | PHI | 65 min |
| Jun 30, 7:56 PM EDT | Severe Thunderstorm Warning | PHI | 49 min |
| Jul 3, 6:29 AM EDT | Dense Fog Advisory | PHI | 113 min |
| Jul 4, 3:34 AM EDT | Heat Advisory | PHI | 64 hr |
| Jul 6, 3:05 AM EDT | Excessive Heat Warning | PHI | 17 hr |
| Jul 7, 2:42 PM EDT | Heat Advisory | PHI | 3 days |
| Jul 8, 11:33 PM EDT | Dense Fog Advisory | PHI | 10 hr |
| Jul 12, 12:27 PM EDT | Areal Flood Warning | PHI | 6 hr |
| Jul 12, 3:37 PM EDT | Excessive Heat Watch | PHI | 72 hr |
| Jul 12, 3:37 PM EDT | Heat Advisory | PHI | 5 days |
| Jul 13, 8:11 AM EDT | Areal Flood Warning | PHI | 4 hr |
| Jul 14, 12:56 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 14, 3:03 PM EDT | Excessive Heat Warning | PHI | 3 days |
| Jul 16, 3:36 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 16, 8:19 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Jul 16, 8:50 PM EDT | Severe Thunderstorm Warning | PHI | 55 min |
| Jul 16, 9:04 PM EDT | Severe Thunderstorm Warning | PHI | 56 min |
| Jul 16, 9:49 PM EDT | Severe Thunderstorm Warning | PHI | 71 min |
| Jul 17, 2:11 PM EDT | Mesoscale Discussion | SPC | 79 min |
| Jul 17, 2:38 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 17, 7:57 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 17, 10:36 PM EDT | Severe Thunderstorm Warning | PHI | 39 min |
| Jul 31, 3:56 AM EDT | Heat Advisory | PHI | 64 hr |
| Aug 2, 4:07 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Aug 2, 7:01 PM EDT | Mesoscale Discussion | SPC | 59 min |
| 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, 8:11 PM EDT | Severe Thunderstorm Warning | PHI | 64 min |
| Aug 3, 8:59 PM EDT | Severe Thunderstorm Warning | PHI | 61 min |
| Aug 6, 1:06 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Aug 8, 3:17 AM EDT | Rip Current Statement | PHI | 40 hr |
| Aug 8, 2:20 PM EDT | High Surf Advisory | PHI | 29 hr |
| Aug 8, 3:13 PM EDT | Wind Advisory | PHI | 27 hr |
| Aug 9, 6:17 AM EDT | Tornado Watch | SPC | 8 hr |
| Aug 9, 10:26 AM EDT | Mesoscale Discussion | SPC | 94 min |
| Aug 15, 4:38 PM EDT | Rip Current Statement | PHI | 4 days |
| Aug 17, 3:40 PM EDT | Coastal Flood Advisory | PHI | 57 hr |
| 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 19, 2:25 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 27, 3:59 AM EDT | Heat Advisory | PHI | 40 hr |
| Sep 4, 4:47 PM EDT | Rip Current Statement | PHI | 3 days |
| Sep 12, 4:15 AM EDT | Dense Fog Advisory | PHI | 6 hr |
| Sep 14, 4:45 PM EDT | Rip Current Statement | PHI | 4 days |
| Sep 16, 4:37 AM EDT | Coastal Flood Advisory | PHI | 19 hr |
| Sep 17, 4:30 AM EDT | Coastal Flood Advisory | PHI | 21 hr |
| Sep 18, 4:45 AM EDT | Coastal Flood Advisory | PHI | 6 days |
| Sep 19, 3:28 AM EDT | Rip Current Statement | PHI | 8 days |
| Sep 19, 2:52 PM EDT | Coastal Flood Watch | PHI | 37 hr |
| Sep 21, 3:55 AM EDT | Coastal Flood Warning | PHI | 36 hr |
| Sep 21, 3:55 AM EDT | Coastal Flood Advisory | PHI | 7 days |
| Sep 27, 5:07 AM EDT | Dense Fog Advisory | PHI | 4 hr |
| Sep 27, 5:08 PM EDT | Rip Current Statement | PHI | 51 hr |
| Sep 29, 4:58 AM EDT | Coastal Flood Advisory | PHI | 49 hr |
| Oct 1, 3:42 PM EDT | Coastal Flood Advisory | PHI | 60 hr |
| Oct 10, 3:19 AM EDT | Frost Advisory | PHI | 30 hr |
| Oct 14, 3:03 PM EDT | Frost Advisory | PHI | 18 hr |
| Oct 17, 2:55 PM EDT | Coastal Flood Advisory | PHI | 22 hr |
| Oct 18, 12:59 PM EDT | Coastal Flood Advisory | PHI | 25 hr |
| Oct 23, 3:39 PM EDT | Red Flag Warning | PHI | 26 hr |
| Oct 25, 3:18 PM EDT | Red Flag Warning | PHI | 28 hr |
| Oct 26, 3:06 AM EDT | Freeze Watch | PHI | 24 hr |
| Oct 27, 2:58 AM EDT | Frost Advisory | PHI | 30 hr |
| Oct 27, 2:58 AM EDT | Freeze Warning | PHI | 30 hr |
| Nov 7, 2:54 PM EST | Red Flag Warning | PHI | 27 hr |
| Nov 12, 5:22 PM EST | Coastal Flood Watch | PHI | 24 hr |
| Nov 13, 5:18 PM EST | Coastal Flood Advisory | PHI | 6 days |
| Nov 14, 3:37 PM EST | Fire Weather Watch | PHI | 23 hr |
| Nov 15, 2:28 PM EST | Red Flag Warning | PHI | 28 hr |
| Nov 20, 3:19 PM EST | Wind Advisory | PHI | 12 hr |
| Dec 3, 3:03 PM EST | Wind Advisory | PHI | 55 hr |
| Dec 9, 9:43 PM EST | Dense Fog Advisory | PHI | 13 hr |
| Dec 10, 2:42 PM EST | Wind Advisory | PHI | 30 hr |
| Dec 23, 2:24 AM EST | Winter Weather Advisory | PHI | 33 hr |
| Dec 31, 6:56 PM EST | Mesoscale Discussion | SPC | 2 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 | 1 |
| Mesoscale Discussion | 16 |
| Special Weather Statement | 6 |
| Flooding | |
| Areal Flood Warning | 4 |
| Flash Flood Warning | 1 |
| Flood Watch | 2 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Weather Advisory | 4 |
| Heat | |
| Excessive Heat Warning | 2 |
| Excessive Heat Watch | 2 |
| Heat Advisory | 6 |
| Cold | |
| Freeze Warning | 3 |
| Freeze Watch | 2 |
| Frost Advisory | 6 |
| Wind and dust | |
| High Wind Warning | 2 |
| High Wind Watch | 1 |
| Wind Advisory | 13 |
| Fire | |
| Red Flag Warning | 5 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 8 |
| Coast and beach | |
| Coastal Flood Warning | 5 |
| Coastal Flood Watch | 5 |
| Coastal Flood Advisory | 30 |
| High Surf Advisory | 1 |
| Rip Current Statement | 11 |
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.