Alert archive / North Carolina / Onslow County
Weather alerts in Onslow County, North Carolina, 2023
209 weather alerts in 2023, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Onslow County and its neighbors
Each county as a circle sized by its count in 2023. Tap one for its archive.
- Alerts
- 209
- Warnings
- 43
- Watches
- 25
- Advisories
- 46
- Busiest month
- July41 alerts
- Busiest day
- July 9, 202310 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
0 of 1 tornado warnings covering Onslow County in 2023 had a tornado report inside them; 0 of 1 tornado reports fell inside a warning.
Onslow County, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 1 | 0% | |
| Severe thunderstorm warnings | 27 | 19 | 30% | 13 | 92% | 19 min |
| Flash flood warnings | 4 | 3 | 25% | 9 | 78% | 356 min |
Each office's whole area, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Newport/Morehead City, NC: tornado warnings | 9 | 0 | 100% | 5 | 0% | |
| NWS Newport/Morehead City, NC: severe thunderstorm warnings | 101 | 64 | 37% | 142 | 87% | 25 min |
| NWS Newport/Morehead City, NC: flash flood warnings | 15 | 11 | 27% | 41 | 95% | 201 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, 10:21 AM EST | Mesoscale Discussion | SPC | 114 min |
| Jan 4, 1:10 PM EST | Mesoscale Discussion | SPC | 95 min |
| Jan 13, 1:23 AM EST | Severe Thunderstorm Warning | MHX | 52 min |
| Jan 25, 6:24 PM EST | Mesoscale Discussion | SPC | 66 min |
| Jan 25, 8:59 PM EST | Special Weather Statement | MHX | 46 min |
| Jan 30, 9:29 PM EST | Dense Fog Advisory | MHX | 15 hr |
| Feb 5, 9:10 PM EST | Dense Fog Advisory | MHX | 7 hr |
| Mar 2, 2:48 PM EST | High Surf Advisory | MHX | 43 hr |
| Mar 3, 4:04 AM EST | Wind Advisory | MHX | 25 hr |
| Mar 8, 3:20 AM EST | Frost Advisory | MHX | 29 hr |
| Mar 11, 3:22 PM EST | Frost Advisory | MHX | 16 hr |
| Mar 13, 3:06 AM EDT | Freeze Watch | MHX | 24 hr |
| Mar 13, 3:06 AM EDT | Freeze Warning | MHX | 24 hr |
| Mar 14, 3:00 AM EDT | Freeze Watch | MHX | 25 hr |
| Mar 14, 3:00 AM EDT | Freeze Warning | MHX | 30 hr |
| Mar 15, 4:20 AM EDT | Freeze Warning | MHX | 29 hr |
| Mar 18, 2:57 AM EDT | Freeze Watch | MHX | 24 hr |
| Mar 18, 3:20 PM EDT | Freeze Warning | MHX | 42 hr |
| Mar 19, 3:05 AM EDT | Freeze Watch | MHX | 30 hr |
| Mar 20, 8:53 AM EDT | Freeze Warning | MHX | 24 hr |
| Mar 26, 4:49 AM EDT | Mesoscale Discussion | SPC | 116 min |
| Mar 31, 3:55 AM EDT | Wind Advisory | MHX | 43 hr |
| Apr 5, 4:00 AM EDT | Dense Fog Advisory | MHX | 6 hr |
| Apr 7, 6:02 PM EDT | Beach Hazards Statement | MHX | 26 hr |
| Apr 8, 4:20 AM EDT | Coastal Flood Advisory | MHX | 47 hr |
| Apr 8, 8:17 PM EDT | Beach Hazards Statement | MHX | 24 hr |
| Apr 9, 9:42 PM EDT | Beach Hazards Statement | MHX | 22 hr |
| Apr 10, 3:33 AM EDT | Frost Advisory | MHX | 28 hr |
| Apr 22, 12:46 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Apr 22, 2:12 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Apr 22, 3:19 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Apr 22, 5:38 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Apr 22, 6:58 PM EDT | Special Weather Statement | MHX | 47 min |
| Apr 22, 8:18 PM EDT | Special Weather Statement | MHX | 42 min |
| Apr 28, 10:42 PM EDT | Special Weather Statement | MHX | 48 min |
| Apr 29, 4:03 PM EDT | Coastal Flood Advisory | MHX | 34 hr |
| Apr 29, 4:03 PM EDT | High Surf Advisory | MHX | 37 hr |
| Apr 29, 8:10 PM EDT | Beach Hazards Statement | MHX | 24 hr |
| Apr 30, 12:21 AM EDT | Severe Thunderstorm Warning | MHX | 39 min |
| Apr 30, 12:37 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Apr 30, 3:23 PM EDT | Severe Thunderstorm Warning | MHX | 67 min |
| Apr 30, 4:07 PM EDT | Severe Thunderstorm Warning | MHX | 53 min |
| Apr 30, 8:48 PM EDT | Beach Hazards Statement | MHX | 23 hr |
| May 1, 9:06 PM EDT | Beach Hazards Statement | MHX | 23 hr |
| May 2, 9:02 PM EDT | Special Weather Statement | MHX | 43 min |
| May 9, 1:36 PM EDT | Mesoscale Discussion | SPC | 114 min |
| May 9, 2:57 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 9, 4:25 PM EDT | Special Weather Statement | MHX | 35 min |
| May 9, 4:52 PM EDT | Mesoscale Discussion | SPC | 83 min |
| May 9, 6:03 PM EDT | Severe Thunderstorm Warning | MHX | 42 min |
| May 9, 8:12 PM EDT | Mesoscale Discussion | SPC | 63 min |
| May 9, 8:41 PM EDT | Severe Thunderstorm Warning | MHX | 49 min |
| May 17, 8:10 PM EDT | Beach Hazards Statement | MHX | 24 hr |
| May 18, 8:18 PM EDT | Beach Hazards Statement | MHX | 23 hr |
| May 19, 9:58 AM EDT | Areal Flood Advisory | MHX | 5 hr |
| May 24, 8:25 PM EDT | Beach Hazards Statement | MHX | 24 hr |
| May 25, 3:16 PM EDT | High Surf Advisory | MHX | 63 hr |
| May 25, 8:48 PM EDT | Beach Hazards Statement | MHX | 23 hr |
| May 26, 8:41 PM EDT | Beach Hazards Statement | MHX | 23 hr |
| May 27, 8:28 PM EDT | Beach Hazards Statement | MHX | 24 hr |
| Jun 2, 3:25 PM EDT | Coastal Flood Advisory | MHX | 59 hr |
| Jun 3, 8:44 PM EDT | Beach Hazards Statement | MHX | 23 hr |
| Jun 12, 1:17 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Jun 12, 1:54 PM EDT | Special Weather Statement | MHX | 36 min |
| Jun 14, 10:57 AM EDT | Beach Hazards Statement | MHX | 9 hr |
| Jun 16, 3:06 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 20, 10:14 PM EDT | Beach Hazards Statement | MHX | 22 hr |
| Jun 21, 8:38 PM EDT | Beach Hazards Statement | MHX | 47 hr |
| Jun 22, 11:35 AM EDT | Special Weather Statement | MHX | 40 min |
| Jun 22, 12:20 PM EDT | Severe Thunderstorm Warning | MHX | 55 min |
| Jun 24, 7:55 PM EDT | Severe Thunderstorm Warning | MHX | 35 min |
| Jun 24, 9:18 PM EDT | Beach Hazards Statement | MHX | 23 hr |
| Jun 26, 9:29 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 26, 10:48 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 27, 12:13 AM EDT | Severe Thunderstorm Warning | MHX | 62 min |
| Jun 27, 12:15 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 27, 1:36 AM EDT | Severe Thunderstorm Warning | MHX | 54 min |
| Jun 27, 9:14 PM EDT | Special Weather Statement | MHX | 31 min |
| Jul 1, 3:19 PM EDT | Heat Advisory | MHX | 29 hr |
| Jul 2, 3:00 PM EDT | Heat Advisory | MHX | 26 hr |
| Jul 3, 5:01 AM EDT | Beach Hazards Statement | MHX | 15 hr |
| Jul 3, 2:42 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 3, 3:45 PM EDT | Heat Advisory | MHX | 27 hr |
| Jul 3, 3:57 PM EDT | Special Weather Statement | MHX | 48 min |
| Jul 3, 4:46 PM EDT | Special Weather Statement | MHX | 44 min |
| Jul 3, 8:30 PM EDT | Beach Hazards Statement | MHX | 24 hr |
| Jul 4, 3:52 PM EDT | Special Weather Statement | MHX | 38 min |
| Jul 5, 2:38 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 5, 3:09 PM EDT | Special Weather Statement | MHX | 36 min |
| Jul 5, 3:18 PM EDT | Severe Thunderstorm Warning | MHX | 42 min |
| Jul 5, 4:03 PM EDT | Severe Thunderstorm Warning | MHX | 42 min |
| Jul 5, 4:20 PM EDT | Areal Flood Advisory | MHX | 100 min |
| Jul 5, 4:39 PM EDT | Special Weather Statement | MHX | 51 min |
| Jul 5, 4:49 PM EDT | Flash Flood Warning | MHX | 116 min |
| Jul 7, 8:32 PM EDT | Special Weather Statement | MHX | 43 min |
| Jul 7, 9:09 PM EDT | Severe Thunderstorm Warning | MHX | 22 min |
| Jul 7, 9:21 PM EDT | Areal Flood Advisory | MHX | 3 hr |
| Jul 9, 3:46 AM EDT | Flood Watch | MHX | 15 hr |
| Jul 9, 12:03 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 9, 1:57 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Jul 9, 2:35 PM EDT | Severe Thunderstorm Warning | MHX | 40 min |
| Jul 9, 3:09 PM EDT | Severe Thunderstorm Warning | MHX | 51 min |
| Jul 9, 3:47 PM EDT | Severe Thunderstorm Warning | MHX | 43 min |
| Jul 9, 4:16 PM EDT | Flash Flood Warning | MHX | 112 min |
| Jul 9, 4:17 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Jul 9, 4:18 PM EDT | Tornado Warning | MHX | 27 min |
| Jul 9, 4:30 PM EDT | Severe Thunderstorm Warning | MHX | 45 min |
| Jul 14, 12:04 PM EDT | Areal Flood Advisory | MHX | 60 min |
| Jul 14, 12:10 PM EDT | Special Weather Statement | MHX | 50 min |
| Jul 15, 8:21 PM EDT | Beach Hazards Statement | MHX | 24 hr |
| Jul 19, 1:03 PM EDT | Tornado Watch | SPC | 6 hr |
| Jul 19, 3:00 PM EDT | Mesoscale Discussion | SPC | 60 min |
| Jul 19, 6:42 PM EDT | Special Weather Statement | MHX | 33 min |
| Jul 19, 6:50 PM EDT | Severe Thunderstorm Warning | MHX | 40 min |
| Jul 19, 7:34 PM EDT | Special Weather Statement | MHX | 26 min |
| Jul 19, 8:03 PM EDT | Special Weather Statement | MHX | 42 min |
| Jul 23, 11:34 PM EDT | Special Weather Statement | MHX | 41 min |
| Jul 24, 12:31 AM EDT | Special Weather Statement | MHX | 44 min |
| Jul 27, 2:20 PM EDT | Heat Advisory | MHX | 53 hr |
| Aug 6, 3:13 PM EDT | Heat Advisory | MHX | 28 hr |
| Aug 7, 4:30 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 7, 8:50 PM EDT | Severe Thunderstorm Warning | MHX | 55 min |
| Aug 7, 9:35 PM EDT | Severe Thunderstorm Warning | MHX | 40 min |
| Aug 9, 8:16 PM EDT | Beach Hazards Statement | MHX | 24 hr |
| Aug 10, 10:50 AM EDT | Mesoscale Discussion | SPC | 115 min |
| Aug 10, 1:41 PM EDT | Severe Thunderstorm Warning | MHX | 26 min |
| Aug 10, 5:37 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Aug 10, 5:58 PM EDT | Special Weather Statement | MHX | 32 min |
| Aug 10, 6:13 PM EDT | Special Weather Statement | MHX | 17 min |
| Aug 10, 6:17 PM EDT | Severe Thunderstorm Warning | MHX | 58 min |
| Aug 10, 6:19 PM EDT | Severe Thunderstorm Warning | MHX | 56 min |
| Aug 10, 6:44 PM EDT | Severe Thunderstorm Warning | MHX | 31 min |
| Aug 10, 7:15 PM EDT | Severe Thunderstorm Warning | MHX | 28 min |
| Aug 12, 2:33 PM EDT | Heat Advisory | MHX | 29 hr |
| Aug 13, 2:29 PM EDT | Heat Advisory | MHX | 29 hr |
| Aug 14, 2:35 PM EDT | Special Weather Statement | MHX | 40 min |
| Aug 14, 4:03 PM EDT | Heat Advisory | MHX | 27 hr |
| Aug 14, 6:30 PM EDT | Special Weather Statement | MHX | 30 min |
| Aug 14, 6:57 PM EDT | Special Weather Statement | MHX | 48 min |
| Aug 15, 3:30 AM EDT | Excessive Heat Warning | MHX | 16 hr |
| Aug 15, 5:45 PM EDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Aug 16, 4:29 PM EDT | Special Weather Statement | MHX | 31 min |
| Aug 16, 4:59 PM EDT | Areal Flood Advisory | MHX | 2 hr |
| Aug 17, 4:15 AM EDT | Special Weather Statement | MHX | 45 min |
| Aug 26, 12:29 PM EDT | Heat Advisory | MHX | 7 hr |
| Aug 26, 5:51 PM EDT | Special Weather Statement | MHX | 24 min |
| Aug 26, 6:14 PM EDT | Special Weather Statement | MHX | 31 min |
| Aug 27, 2:17 AM EDT | Flood Watch | MHX | 18 hr |
| Aug 28, 8:40 PM EDT | Beach Hazards Statement | MHX | 20 hr |
| Aug 29, 3:07 PM EDT | Flood Watch | MHX | 46 hr |
| Aug 29, 4:54 PM EDT | Tropical Storm Watch | MHX | 12 hr |
| Aug 30, 3:38 AM EDT | Beach Hazards Statement | MHX | 16 hr |
| Aug 30, 3:38 AM EDT | High Surf Advisory | MHX | 3 days |
| Aug 30, 5:13 AM EDT | Tropical Storm Warning | MHX | 36 hr |
| Aug 30, 5:36 PM EDT | Mesoscale Discussion | SPC | 54 min |
| Aug 30, 7:57 PM EDT | Tornado Watch | SPC | 11 hr |
| Aug 30, 8:26 PM EDT | Beach Hazards Statement | MHX | 24 hr |
| Aug 30, 8:59 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Aug 31, 1:12 AM EDT | Flash Flood Warning | MHX | 10 hr |
| Sep 10, 6:21 AM EDT | Areal Flood Advisory | MHX | 54 min |
| Sep 11, 8:33 PM EDT | Beach Hazards Statement | MHX | 23 hr |
| Sep 12, 4:45 AM EDT | High Surf Advisory | MHX | 5 days |
| Sep 12, 8:34 PM EDT | Beach Hazards Statement | MHX | 23 hr |
| Sep 13, 3:41 PM EDT | Coastal Flood Advisory | MHX | 46 hr |
| Sep 13, 6:34 PM EDT | Special Weather Statement | MHX | 26 min |
| Sep 13, 8:50 PM EDT | Beach Hazards Statement | MHX | 47 hr |
| Sep 15, 8:17 PM EDT | Beach Hazards Statement | MHX | 24 hr |
| Sep 20, 8:08 PM EDT | Beach Hazards Statement | MHX | 24 hr |
| Sep 21, 11:14 AM EDT | Storm Surge Watch | MHX | 54 hr |
| Sep 21, 11:14 AM EDT | Tropical Storm Warning | MHX | 57 hr |
| Sep 21, 3:19 PM EDT | Flood Watch | MHX | 47 hr |
| Sep 21, 8:22 PM EDT | Beach Hazards Statement | MHX | 24 hr |
| Sep 22, 5:07 PM EDT | Hurricane Watch | MHX | 15 hr |
| Sep 22, 8:12 PM EDT | Beach Hazards Statement | MHX | 24 hr |
| Sep 23, 6:02 AM EDT | Flash Flood Warning | MHX | 3 hr |
| Sep 25, 8:56 PM EDT | Coastal Flood Advisory | MHX | 3 days |
| Sep 30, 4:11 AM EDT | Coastal Flood Advisory | MHX | 7 hr |
| Sep 30, 3:54 PM EDT | Coastal Flood Advisory | MHX | 46 hr |
| Oct 13, 12:04 AM EDT | Dense Fog Advisory | MHX | 9 hr |
| Oct 13, 8:08 PM EDT | Beach Hazards Statement | MHX | 24 hr |
| Oct 14, 4:29 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 20, 12:34 AM EDT | Dense Fog Advisory | MHX | 10 hr |
| Oct 23, 2:13 PM EDT | Frost Advisory | MHX | 19 hr |
| Oct 27, 3:15 AM EDT | Dense Fog Advisory | MHX | 6 hr |
| Oct 27, 8:00 PM EDT | Beach Hazards Statement | MHX | 24 hr |
| Oct 31, 3:55 AM EDT | Freeze Watch | MHX | 23 hr |
| Nov 1, 3:22 AM EDT | Freeze Warning | MHX | 30 hr |
| Nov 1, 7:33 PM EDT | Frost Advisory | MHX | 13 hr |
| Nov 22, 7:07 AM EST | Mesoscale Discussion | SPC | 2 hr |
| Nov 22, 9:52 AM EST | Special Weather Statement | MHX | 38 min |
| Dec 10, 1:05 PM EST | Mesoscale Discussion | SPC | 2 hr |
| Dec 10, 1:31 PM EST | Tornado Watch | SPC | 8 hr |
| Dec 10, 4:53 PM EST | Mesoscale Discussion | SPC | 97 min |
| Dec 15, 2:17 PM EST | Coastal Flood Watch | MHX | 25 hr |
| Dec 16, 4:00 AM EST | Wind Advisory | MHX | 44 hr |
| Dec 16, 4:17 AM EST | Coastal Flood Warning | MHX | 63 hr |
| Dec 16, 4:17 AM EST | High Surf Advisory | MHX | 4 days |
| Dec 17, 3:11 AM EST | Flood Watch | MHX | 25 hr |
| Dec 17, 12:06 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 17, 1:51 PM EST | Tornado Watch | SPC | 8 hr |
| Dec 17, 4:49 PM EST | Mesoscale Discussion | SPC | 116 min |
| Dec 17, 6:51 PM EST | Mesoscale Discussion | SPC | 114 min |
| Dec 17, 7:46 PM EST | Severe Thunderstorm Warning | MHX | 44 min |
| Dec 17, 8:01 PM EST | Areal Flood Advisory | MHX | 3 hr |
| Dec 17, 8:12 PM EST | Areal Flood Advisory | MHX | 3 hr |
| Dec 17, 8:27 PM EST | Severe Thunderstorm Warning | MHX | 34 min |
| Dec 17, 9:16 PM EST | Areal Flood Advisory | MHX | 3 hr |
| Dec 27, 12:07 PM EST | Areal Flood Advisory | MHX | 3 hr |
| Dec 28, 9:36 AM EST | River Flood Warning | MHX | 11 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 | 27 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 7 |
| Tornado Watch | 4 |
| Mesoscale Discussion | 30 |
| Special Weather Statement | 32 |
| Flooding | |
| Flash Flood Warning | 4 |
| River Flood Warning | 1 |
| Flood Watch | 5 |
| Areal Flood Advisory | 10 |
| Heat | |
| Excessive Heat Warning | 1 |
| Heat Advisory | 9 |
| Cold | |
| Freeze Warning | 6 |
| Freeze Watch | 5 |
| Frost Advisory | 5 |
| Wind and dust | |
| Wind Advisory | 3 |
| Fog and smoke | |
| Dense Fog Advisory | 6 |
| Tropical | |
| Tropical Storm Warning | 2 |
| Hurricane Watch | 1 |
| Storm Surge Watch | 1 |
| Tropical Storm Watch | 1 |
| Coast and beach | |
| Coastal Flood Warning | 1 |
| Coastal Flood Watch | 1 |
| Coastal Flood Advisory | 7 |
| High Surf Advisory | 6 |
| Beach Hazards Statement | 33 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20222024
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.