Alert archive / North Carolina / Vance County
Weather alerts in Vance County, North Carolina, 2020
125 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Vance County and its neighbors
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Alerts
- 125
- Warnings
- 27
- Watches
- 9
- Advisories
- 30
- Busiest month
- April25 alerts
- Busiest day
- June 17, 20207 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 Vance County in 2020 had a tornado report inside them.
Vance County, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 9 | 9 | 0% | 0 | ||
| Flash flood warnings | 6 | 5 | 17% | 1 | 100% | 164 min |
Each office's whole area, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Raleigh, NC: tornado warnings | 32 | 5 | 84% | 9 | 78% | 6 min |
| NWS Raleigh, NC: severe thunderstorm warnings | 164 | 104 | 37% | 380 | 82% | 26 min |
| NWS Raleigh, NC: flash flood warnings | 61 | 40 | 34% | 175 | 85% | 130 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, 4:43 PM EST | Special Weather Statement | RAH | 62 min |
| Jan 11, 9:35 PM EST | Severe Thunderstorm Watch | SPC | 4 hr |
| Jan 11, 10:59 PM EST | Mesoscale Discussion | SPC | 91 min |
| Jan 12, 12:00 AM EST | Severe Thunderstorm Warning | RAH | 75 min |
| Feb 5, 3:09 PM EST | Flood Watch | RAH | 34 hr |
| Feb 6, 12:41 PM EST | Tornado Watch | SPC | 6 hr |
| Feb 6, 1:28 PM EST | Severe Thunderstorm Warning | RAH | 62 min |
| Feb 6, 2:17 PM EST | Severe Thunderstorm Warning | RAH | 43 min |
| Feb 6, 2:52 PM EST | Areal Flood Advisory | RAH | 4 hr |
| Feb 6, 9:16 PM EST | Wind Advisory | RAH | 19 hr |
| Feb 11, 7:51 AM EST | Special Weather Statement | RAH | 84 min |
| Feb 19, 2:16 PM EST | Winter Weather Advisory | RAH | 44 hr |
| Feb 20, 3:40 AM EST | Winter Storm Warning | RAH | 24 hr |
| Feb 20, 4:01 PM EST | Mesoscale Discussion | SPC | 3 hr |
| Feb 21, 3:39 PM EST | Winter Weather Advisory | RAH | 17 hr |
| Feb 26, 3:31 AM EST | Dense Fog Advisory | RAH | 5 hr |
| Feb 26, 9:04 AM EST | Dense Fog Advisory | RAH | 116 min |
| Feb 26, 9:33 PM EST | Special Weather Statement | RAH | 87 min |
| Mar 29, 6:05 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Apr 6, 1:59 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 6, 3:35 PM EDT | Special Weather Statement | RAH | 55 min |
| Apr 7, 4:32 AM EDT | Dense Fog Advisory | RAH | 5 hr |
| Apr 7, 2:07 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Apr 7, 3:16 PM EDT | Special Weather Statement | RAH | 59 min |
| Apr 8, 8:24 AM EDT | Special Weather Statement | RAH | 51 min |
| Apr 8, 5:03 PM EDT | Special Weather Statement | RAH | 57 min |
| Apr 8, 5:36 PM EDT | Severe Thunderstorm Warning | RAH | 39 min |
| Apr 8, 6:05 PM EDT | Severe Thunderstorm Warning | RAH | 40 min |
| Apr 8, 6:06 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Apr 8, 7:03 PM EDT | Severe Thunderstorm Warning | RAH | 42 min |
| Apr 10, 10:49 AM EDT | Red Flag Warning | RAH | 7 hr |
| Apr 10, 3:13 PM EDT | Freeze Warning | RAH | 17 hr |
| Apr 12, 3:33 PM EDT | Wind Advisory | RAH | 24 hr |
| Apr 13, 4:40 AM EDT | Mesoscale Discussion | SPC | 95 min |
| Apr 13, 5:01 AM EDT | Tornado Watch | SPC | 7 hr |
| Apr 13, 6:46 AM EDT | Mesoscale Discussion | SPC | 89 min |
| Apr 13, 7:16 AM EDT | Special Weather Statement | RAH | 59 min |
| Apr 13, 7:38 AM EDT | Severe Thunderstorm Warning | RAH | 47 min |
| Apr 13, 7:47 AM EDT | Tornado Warning | RAH | 28 min |
| Apr 15, 3:06 AM EDT | Frost Advisory | RAH | 29 hr |
| Apr 16, 3:18 PM EDT | Frost Advisory | RAH | 17 hr |
| Apr 26, 8:41 PM EDT | Severe Thunderstorm Warning | RAH | 34 min |
| Apr 26, 9:06 PM EDT | Special Weather Statement | RAH | 54 min |
| Apr 30, 6:27 AM EDT | Special Weather Statement | RAH | 63 min |
| May 5, 10:30 PM EDT | Special Weather Statement | RAH | 60 min |
| May 6, 4:56 PM EDT | Special Weather Statement | RAH | 79 min |
| May 9, 3:57 AM EDT | Freeze Warning | RAH | 28 hr |
| May 27, 6:48 PM EDT | Special Weather Statement | RAH | 57 min |
| May 28, 6:25 AM EDT | Special Weather Statement | RAH | 65 min |
| May 29, 5:34 AM EDT | Special Weather Statement | RAH | 56 min |
| Jun 11, 3:59 AM EDT | Flash Flood Watch | RAH | 24 hr |
| Jun 11, 4:37 PM EDT | Areal Flood Advisory | RAH | 3 hr |
| Jun 11, 4:48 PM EDT | Special Weather Statement | RAH | 57 min |
| Jun 11, 5:55 PM EDT | Special Weather Statement | RAH | 65 min |
| Jun 15, 11:32 AM EDT | Areal Flood Advisory | RAH | 6 hr |
| Jun 17, 12:32 AM EDT | Special Weather Statement | RAH | 88 min |
| Jun 17, 12:50 AM EDT | Areal Flood Advisory | RAH | 3 hr |
| Jun 17, 4:39 AM EDT | Areal Flood Advisory | RAH | 3 hr |
| Jun 17, 5:11 AM EDT | Flash Flood Warning | RAH | 4 hr |
| Jun 17, 8:23 AM EDT | Flash Flood Warning | RAH | 4 hr |
| Jun 17, 12:16 PM EDT | Areal Flood Warning | RAH | 3 hr |
| Jun 17, 3:08 PM EDT | Areal Flood Warning | RAH | 18 hr |
| Jun 19, 6:06 PM EDT | Areal Flood Advisory | RAH | 114 min |
| Jun 25, 5:48 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jul 1, 1:46 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Jul 10, 11:11 PM EDT | Special Weather Statement | RAH | 64 min |
| Jul 13, 1:21 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Jul 17, 1:47 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Jul 17, 5:22 PM EDT | Special Weather Statement | RAH | 53 min |
| Jul 17, 5:41 PM EDT | Special Weather Statement | RAH | 34 min |
| Jul 17, 5:50 PM EDT | Severe Thunderstorm Warning | RAH | 40 min |
| Jul 17, 6:34 PM EDT | Special Weather Statement | RAH | 56 min |
| Jul 18, 3:18 PM EDT | Heat Advisory | RAH | 30 hr |
| Jul 19, 2:59 PM EDT | Heat Advisory | RAH | 30 hr |
| Jul 20, 3:23 PM EDT | Heat Advisory | RAH | 30 hr |
| Jul 21, 3:00 PM EDT | Heat Advisory | RAH | 30 hr |
| Jul 23, 1:11 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 31, 1:04 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Jul 31, 9:05 PM EDT | Special Weather Statement | RAH | 40 min |
| Aug 2, 4:06 AM EDT | Flash Flood Watch | RAH | 52 hr |
| Aug 3, 6:10 PM EDT | Special Weather Statement | RAH | 65 min |
| Aug 4, 2:21 AM EDT | Flash Flood Warning | RAH | 6 hr |
| Aug 6, 2:08 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 12, 11:57 PM EDT | Special Weather Statement | RAH | 63 min |
| Aug 15, 3:56 AM EDT | Flash Flood Watch | RAH | 18 hr |
| Aug 17, 4:17 PM EDT | Special Weather Statement | RAH | 58 min |
| Aug 28, 7:50 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 28, 8:34 PM EDT | Special Weather Statement | RAH | 56 min |
| Aug 31, 5:32 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Aug 31, 5:36 PM EDT | Special Weather Statement | RAH | 54 min |
| Aug 31, 6:24 PM EDT | Special Weather Statement | RAH | 51 min |
| Aug 31, 7:49 PM EDT | Areal Flood Advisory | RAH | 69 min |
| Aug 31, 8:43 PM EDT | Flash Flood Warning | RAH | 3 hr |
| Aug 31, 11:41 PM EDT | Flash Flood Warning | RAH | 2 hr |
| Sep 1, 1:46 AM EDT | Areal Flood Warning | RAH | 9 hr |
| Sep 16, 4:19 AM EDT | Flash Flood Watch | RAH | 47 hr |
| Sep 25, 8:42 PM EDT | Special Weather Statement | RAH | 48 min |
| Sep 27, 3:21 AM EDT | Dense Fog Advisory | RAH | 6 hr |
| Sep 28, 5:44 AM EDT | Dense Fog Advisory | RAH | 4 hr |
| Sep 29, 2:36 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 11, 9:16 PM EDT | Special Weather Statement | RAH | 59 min |
| Oct 19, 7:28 AM EDT | Dense Fog Advisory | RAH | 3 hr |
| Oct 21, 4:36 AM EDT | Dense Fog Advisory | RAH | 5 hr |
| Oct 23, 6:47 AM EDT | Special Weather Statement | RAH | 58 min |
| Oct 26, 9:13 PM EDT | Dense Fog Advisory | RAH | 13 hr |
| Oct 28, 2:26 PM EDT | Wind Advisory | RAH | 26 hr |
| Oct 29, 10:21 AM EDT | High Wind Warning | RAH | 6 hr |
| Oct 29, 10:45 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Oct 29, 11:23 PM EDT | Special Weather Statement | RAH | 52 min |
| Oct 30, 1:09 AM EDT | Special Weather Statement | RAH | 66 min |
| Nov 2, 1:59 PM EST | Freeze Warning | RAH | 18 hr |
| Nov 6, 2:22 AM EST | Dense Fog Advisory | RAH | 7 hr |
| Nov 6, 9:01 AM EST | Dense Fog Advisory | RAH | 59 min |
| Nov 11, 3:08 AM EST | Flash Flood Watch | RAH | 36 hr |
| Nov 12, 8:33 AM EST | Flash Flood Warning | RAH | 8 hr |
| Nov 12, 4:25 PM EST | Areal Flood Warning | RAH | 5 hr |
| Nov 12, 8:52 PM EST | Areal Flood Warning | RAH | 19 hr |
| Nov 26, 8:46 PM EST | Dense Fog Advisory | RAH | 12 hr |
| Nov 30, 3:37 AM EST | Wind Advisory | RAH | 13 hr |
| Nov 30, 11:36 AM EST | Special Weather Statement | RAH | 39 min |
| Nov 30, 12:26 PM EST | Special Weather Statement | RAH | 64 min |
| Dec 4, 11:45 PM EST | Special Weather Statement | RAH | 60 min |
| Dec 24, 1:17 PM EST | Special Weather Statement | RAH | 58 min |
| Dec 24, 7:13 PM EST | Mesoscale Discussion | SPC | 2 hr |
| Dec 25, 12:05 AM EST | Special Weather Statement | RAH | 85 min |
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 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 1 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 20 |
| Special Weather Statement | 39 |
| Flooding | |
| Areal Flood Warning | 5 |
| Flash Flood Warning | 6 |
| Flash Flood Watch | 5 |
| Flood Watch | 1 |
| Areal Flood Advisory | 7 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Weather Advisory | 2 |
| Heat | |
| Heat Advisory | 4 |
| Cold | |
| Freeze Warning | 3 |
| Frost Advisory | 2 |
| Wind and dust | |
| High Wind Warning | 1 |
| Wind Advisory | 4 |
| Fire | |
| Red Flag Warning | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 11 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20192021
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.