Alert archive / North Carolina / Columbus County
Weather alerts in Columbus County, North Carolina, 2017
136 weather alerts in 2017, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Columbus County and its neighbors
Each county as a circle sized by its count in 2017. Tap one for its archive.
- Alerts
- 136
- Warnings
- 29
- Watches
- 10
- Advisories
- 37
- Busiest month
- July30 alerts
- Busiest day
- July 8, 20177 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 Columbus County in 2017 had a tornado report inside them.
Columbus County, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 18 | 10 | 44% | 9 | 67% | 21 min |
| Flash flood warnings | 2 | 1 | 50% | 1 | 100% | 9 min |
Each office's whole area, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Wilmington, NC: tornado warnings | 19 | 1 | 95% | 6 | 17% | 7 min |
| NWS Wilmington, NC: severe thunderstorm warnings | 87 | 49 | 44% | 121 | 65% | 18 min |
| NWS Wilmington, NC: flash flood warnings | 9 | 3 | 67% | 8 | 88% | 49 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 6, 2:48 PM EST | Winter Weather Advisory | ILM | 25 hr |
| Jan 17, 5:06 AM EST | Dense Fog Advisory | ILM | 5 hr |
| Jan 21, 4:46 AM EST | Dense Fog Advisory | ILM | 5 hr |
| Feb 9, 3:12 AM EST | Mesoscale Discussion | SPC | 2 hr |
| Feb 9, 5:26 AM EST | Special Weather Statement | ILM | 64 min |
| Feb 15, 10:19 AM EST | Mesoscale Discussion | SPC | 2 hr |
| Mar 1, 6:21 PM EST | Mesoscale Discussion | SPC | 114 min |
| Mar 1, 10:59 PM EST | Special Weather Statement | ILM | 61 min |
| Mar 3, 3:29 AM EST | Freeze Warning | ILM | 30 hr |
| Mar 4, 9:06 AM EST | Freeze Warning | ILM | 23 hr |
| Mar 12, 5:05 PM EDT | Freeze Warning | ILM | 16 hr |
| Mar 13, 9:22 AM EDT | Freeze Watch | ILM | 18 hr |
| Mar 14, 3:31 AM EDT | Freeze Warning | ILM | 31 hr |
| Mar 15, 11:17 AM EDT | Freeze Warning | ILM | 23 hr |
| Mar 16, 10:04 AM EDT | Freeze Warning | ILM | 24 hr |
| Mar 18, 8:40 PM EDT | Special Weather Statement | ILM | 50 min |
| Mar 18, 11:25 PM EDT | Special Weather Statement | ILM | 65 min |
| Mar 19, 3:36 PM EDT | Frost Advisory | ILM | 16 hr |
| Mar 22, 12:11 AM EDT | Special Weather Statement | ILM | 64 min |
| Mar 22, 1:02 AM EDT | Special Weather Statement | ILM | 43 min |
| Mar 22, 3:14 PM EDT | Freeze Warning | ILM | 17 hr |
| Mar 23, 5:39 PM EDT | Frost Advisory | ILM | 14 hr |
| Mar 31, 12:53 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 3, 4:36 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Apr 3, 6:41 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Apr 3, 6:54 PM EDT | Special Weather Statement | ILM | 51 min |
| Apr 3, 7:40 PM EDT | Special Weather Statement | ILM | 65 min |
| Apr 3, 7:44 PM EDT | Severe Thunderstorm Warning | ILM | 33 min |
| Apr 5, 2:02 PM EDT | Mesoscale Discussion | SPC | 58 min |
| Apr 5, 2:45 PM EDT | Tornado Watch | SPC | 5 hr |
| Apr 5, 2:59 PM EDT | Wind Advisory | ILM | 31 hr |
| Apr 5, 4:23 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Apr 5, 5:02 PM EDT | Severe Thunderstorm Warning | ILM | 58 min |
| Apr 20, 6:07 AM EDT | Dense Fog Advisory | ILM | 3 hr |
| Apr 23, 4:02 AM EDT | Flash Flood Watch | ILM | 48 hr |
| Apr 24, 8:07 AM EDT | Areal Flood Advisory | ILM | 113 min |
| May 4, 8:49 PM EDT | Tornado Watch | SPC | 6 hr |
| May 4, 11:24 PM EDT | Mesoscale Discussion | SPC | 66 min |
| May 5, 12:20 AM EDT | Special Weather Statement | ILM | 40 min |
| May 5, 3:09 AM EDT | Tornado Watch | SPC | 6 hr |
| May 5, 4:11 AM EDT | Severe Thunderstorm Warning | ILM | 64 min |
| May 5, 4:55 AM EDT | Tornado Warning | ILM | 20 min |
| May 22, 5:04 PM EDT | Areal Flood Advisory | ILM | 86 min |
| May 22, 6:32 PM EDT | Areal Flood Advisory | ILM | 118 min |
| May 23, 3:19 AM EDT | Flash Flood Watch | ILM | 38 hr |
| May 23, 4:50 PM EDT | Mesoscale Discussion | SPC | 85 min |
| May 24, 3:13 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 24, 3:40 PM EDT | Special Weather Statement | ILM | 35 min |
| May 25, 2:16 PM EDT | Severe Thunderstorm Warning | ILM | 44 min |
| May 25, 2:20 PM EDT | Special Weather Statement | ILM | 55 min |
| May 28, 4:56 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 28, 6:36 PM EDT | Severe Thunderstorm Warning | ILM | 54 min |
| May 28, 7:06 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| May 28, 7:30 PM EDT | Severe Thunderstorm Warning | ILM | 30 min |
| May 28, 8:20 PM EDT | Mesoscale Discussion | SPC | 85 min |
| May 28, 8:40 PM EDT | Severe Thunderstorm Warning | ILM | 41 min |
| May 30, 1:12 AM EDT | Special Weather Statement | ILM | 33 min |
| May 30, 3:53 AM EDT | Special Weather Statement | ILM | 37 min |
| Jun 1, 3:56 PM EDT | Special Weather Statement | ILM | 34 min |
| Jun 3, 3:21 PM EDT | Special Weather Statement | ILM | 39 min |
| Jun 14, 1:17 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 15, 4:27 PM EDT | Severe Thunderstorm Warning | ILM | 52 min |
| Jun 16, 1:27 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 16, 4:16 PM EDT | Special Weather Statement | ILM | 29 min |
| Jun 19, 1:03 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 25, 5:30 PM EDT | Special Weather Statement | ILM | 30 min |
| Jun 25, 6:31 PM EDT | Areal Flood Advisory | ILM | 3 hr |
| Jul 5, 6:46 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Jul 7, 10:37 AM EDT | Heat Advisory | ILM | 8 hr |
| Jul 7, 8:13 PM EDT | Special Weather Statement | ILM | 17 min |
| Jul 7, 8:22 PM EDT | Severe Thunderstorm Warning | ILM | 25 min |
| Jul 7, 8:49 PM EDT | Special Weather Statement | ILM | 26 min |
| Jul 7, 11:38 PM EDT | Special Weather Statement | ILM | 37 min |
| Jul 8, 12:00 AM EDT | Special Weather Statement | ILM | 45 min |
| Jul 8, 12:04 AM EDT | Severe Thunderstorm Warning | ILM | 14 min |
| Jul 8, 6:20 PM EDT | Special Weather Statement | ILM | 25 min |
| Jul 9, 5:25 PM EDT | Areal Flood Advisory | ILM | 2 hr |
| Jul 9, 5:44 PM EDT | Special Weather Statement | ILM | 61 min |
| Jul 9, 5:54 PM EDT | Severe Thunderstorm Warning | ILM | 25 min |
| Jul 9, 6:33 PM EDT | Areal Flood Advisory | ILM | 117 min |
| Jul 9, 6:45 PM EDT | Special Weather Statement | ILM | 60 min |
| Jul 9, 7:05 PM EDT | Areal Flood Advisory | ILM | 115 min |
| Jul 9, 7:11 PM EDT | Flash Flood Warning | ILM | 3 hr |
| Jul 10, 6:49 PM EDT | Special Weather Statement | ILM | 56 min |
| Jul 11, 4:46 PM EDT | Special Weather Statement | ILM | 59 min |
| Jul 11, 5:44 PM EDT | Areal Flood Advisory | ILM | 3 hr |
| Jul 11, 6:32 PM EDT | Special Weather Statement | ILM | 58 min |
| Jul 15, 11:40 AM EDT | Heat Advisory | ILM | 7 hr |
| Jul 15, 6:30 PM EDT | Special Weather Statement | ILM | 60 min |
| Jul 15, 7:01 PM EDT | Severe Thunderstorm Warning | ILM | 30 min |
| Jul 15, 7:24 PM EDT | Severe Thunderstorm Warning | ILM | 35 min |
| Jul 15, 8:02 PM EDT | Areal Flood Advisory | ILM | 3 hr |
| Jul 22, 3:46 AM EDT | Heat Advisory | ILM | 15 hr |
| Jul 22, 3:00 PM EDT | Heat Advisory | ILM | 28 hr |
| Jul 23, 6:05 PM EDT | Severe Thunderstorm Warning | ILM | 55 min |
| Jul 28, 10:00 PM EDT | Special Weather Statement | ILM | 60 min |
| Jul 29, 11:06 AM EDT | Special Weather Statement | ILM | 24 min |
| Aug 7, 1:36 PM EDT | Special Weather Statement | ILM | 39 min |
| Aug 7, 4:22 PM EDT | Severe Thunderstorm Warning | ILM | 38 min |
| Aug 7, 4:57 PM EDT | Special Weather Statement | ILM | 48 min |
| Aug 8, 2:22 PM EDT | Areal Flood Advisory | ILM | 113 min |
| Aug 8, 3:00 PM EDT | Flash Flood Warning | ILM | 2 hr |
| Aug 8, 4:08 PM EDT | Areal Flood Advisory | ILM | 3 hr |
| Aug 12, 7:19 PM EDT | Special Weather Statement | ILM | 56 min |
| Aug 15, 8:33 PM EDT | Special Weather Statement | ILM | 57 min |
| Aug 16, 10:07 AM EDT | Heat Advisory | ILM | 7 hr |
| Aug 17, 3:21 AM EDT | Heat Advisory | ILM | 14 hr |
| Aug 17, 4:46 PM EDT | Special Weather Statement | ILM | 59 min |
| Aug 17, 5:38 PM EDT | Special Weather Statement | ILM | 52 min |
| Aug 18, 3:21 AM EDT | Heat Advisory | ILM | 15 hr |
| Aug 19, 3:22 AM EDT | Heat Advisory | ILM | 15 hr |
| Aug 19, 3:16 PM EDT | Special Weather Statement | ILM | 29 min |
| Aug 23, 1:23 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 23, 7:10 PM EDT | Severe Thunderstorm Warning | ILM | 95 min |
| Aug 23, 8:41 PM EDT | Special Weather Statement | ILM | 64 min |
| Aug 23, 9:17 PM EDT | Severe Thunderstorm Warning | ILM | 22 min |
| Aug 28, 3:19 AM EDT | Flash Flood Watch | ILM | 24 hr |
| Sep 10, 3:44 AM EDT | Wind Advisory | ILM | 46 hr |
| Sep 12, 3:00 AM EDT | Areal Flood Advisory | ILM | 3 hr |
| Sep 12, 4:46 AM EDT | Areal Flood Advisory | ILM | 3 hr |
| Sep 12, 5:51 AM EDT | Areal Flood Advisory | ILM | 114 min |
| Sep 21, 12:00 AM EDT | Special Weather Statement | ILM | 60 min |
| Sep 21, 5:25 PM EDT | Special Weather Statement | ILM | 65 min |
| Sep 21, 5:56 PM EDT | Special Weather Statement | ILM | 64 min |
| Oct 12, 9:42 PM EDT | Areal Flood Advisory | ILM | 2 hr |
| Oct 23, 6:59 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Oct 23, 9:57 PM EDT | Severe Thunderstorm Warning | ILM | 38 min |
| Oct 23, 10:08 PM EDT | Special Weather Statement | ILM | 67 min |
| Nov 5, 11:13 PM EST | Dense Fog Advisory | ILM | 11 hr |
| Nov 9, 3:11 PM EST | Freeze Watch | ILM | 12 hr |
| Nov 10, 3:10 AM EST | Freeze Warning | ILM | 29 hr |
| Nov 11, 8:27 PM EST | Frost Advisory | ILM | 11 hr |
| Nov 17, 11:21 PM EST | Frost Advisory | ILM | 9 hr |
| Nov 19, 3:12 PM EST | Frost Advisory | ILM | 18 hr |
| Dec 26, 3:20 PM EST | Winter Weather Advisory | ILM | 12 hr |
| Dec 31, 5:50 PM EST | Winter Weather Advisory | ILM | 8 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 | 18 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 2 |
| Tornado Watch | 3 |
| Mesoscale Discussion | 18 |
| Special Weather Statement | 42 |
| Flooding | |
| Flash Flood Warning | 2 |
| Flash Flood Watch | 3 |
| Areal Flood Advisory | 15 |
| Winter | |
| Winter Weather Advisory | 3 |
| Heat | |
| Heat Advisory | 8 |
| Cold | |
| Freeze Warning | 8 |
| Freeze Watch | 2 |
| Frost Advisory | 5 |
| Wind and dust | |
| Wind Advisory | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 4 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20162018
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.