Alert archive / North Carolina / Vance County
Weather alerts in Vance County, North Carolina, 2011
201 weather alerts in 2011, 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 2011. Tap one for its archive.
- Alerts
- 201
- Warnings
- 32
- Watches
- 32
- Advisories
- 30
- Busiest month
- May32 alerts
- Busiest day
- September 6, 201114 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
1 of 6 tornado warnings covering Vance County in 2011 had a tornado report inside them.
Vance County, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 6 | 1 | 83% | 0 | ||
| Severe thunderstorm warnings | 18 | 11 | 39% | 17 | 65% | 16 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Raleigh, NC: tornado warnings | 61 | 22 | 64% | 87 | 93% | 27 min |
| NWS Raleigh, NC: severe thunderstorm warnings | 360 | 267 | 26% | 788 | 83% | 21 min |
| NWS Raleigh, NC: flash flood warnings | 51 | 26 | 49% | 77 | 88% | 77 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, 3:05 AM EST | Winter Weather Advisory | RAH | 19 hr |
| Jan 8, 8:02 PM EST | Winter Storm Watch | RAH | 19 hr |
| Jan 9, 3:13 PM EST | Winter Weather Advisory | RAH | 68 hr |
| Jan 17, 10:23 PM EST | Winter Weather Advisory | RAH | 12 hr |
| Feb 13, 2:12 PM EST | Fire Weather Watch | RAH | 14 hr |
| Feb 14, 3:59 AM EST | Wind Advisory | RAH | 14 hr |
| Feb 14, 4:12 AM EST | Red Flag Warning | RAH | 17 hr |
| Feb 18, 10:12 AM EST | Fire Weather Watch | RAH | 18 hr |
| Feb 19, 4:02 AM EST | Red Flag Warning | RAH | 17 hr |
| Feb 24, 3:10 PM EST | Wind Advisory | RAH | 27 hr |
| Feb 27, 3:27 PM EST | Wind Advisory | RAH | 27 hr |
| Feb 28, 5:04 PM EST | Severe Thunderstorm Watch | SPC | 5 hr |
| Mar 6, 12:06 PM EST | Mesoscale Discussion | SPC | 84 min |
| Mar 6, 4:31 PM EST | Special Weather Statement | RAH | 59 min |
| Mar 10, 12:51 PM EST | Mesoscale Discussion | SPC | 114 min |
| Mar 10, 1:25 PM EST | Severe Thunderstorm Watch | SPC | 7 hr |
| Mar 10, 3:06 PM EST | Special Weather Statement | RAH | 54 min |
| Mar 22, 3:44 PM EDT | Fire Weather Watch | RAH | 12 hr |
| Mar 23, 4:04 AM EDT | Red Flag Warning | RAH | 16 hr |
| Mar 23, 4:48 PM EDT | Mesoscale Discussion | SPC | 57 min |
| Mar 23, 6:04 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Mar 23, 7:10 PM EDT | Mesoscale Discussion | SPC | 65 min |
| Mar 23, 7:19 PM EDT | Special Weather Statement | RAH | 56 min |
| Mar 23, 7:31 PM EDT | Severe Thunderstorm Warning | RAH | 59 min |
| Mar 23, 9:45 PM EDT | Special Weather Statement | RAH | 60 min |
| Mar 23, 10:26 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Mar 24, 3:57 AM EDT | Frost Advisory | RAH | 28 hr |
| Mar 27, 4:16 PM EDT | Freeze Watch | RAH | 23 hr |
| Mar 28, 12:43 AM EDT | Freeze Warning | RAH | 7 hr |
| Mar 28, 2:46 PM EDT | Freeze Warning | RAH | 17 hr |
| Apr 1, 2:54 PM EDT | Wind Advisory | RAH | 27 hr |
| Apr 2, 3:50 AM EDT | Frost Advisory | RAH | 28 hr |
| Apr 4, 9:19 AM EDT | Wind Advisory | RAH | 20 hr |
| Apr 5, 12:48 AM EDT | Tornado Watch | SPC | 5 hr |
| Apr 5, 3:34 AM EDT | Mesoscale Discussion | SPC | 116 min |
| Apr 5, 3:40 AM EDT | Severe Thunderstorm Warning | RAH | 37 min |
| Apr 5, 7:06 AM EDT | Frost Advisory | RAH | 26 hr |
| Apr 5, 8:18 AM EDT | Special Weather Statement | RAH | 87 min |
| Apr 9, 7:21 PM EDT | Special Weather Statement | RAH | 54 min |
| Apr 9, 8:11 PM EDT | Special Weather Statement | RAH | 34 min |
| Apr 12, 7:00 PM EDT | Special Weather Statement | RAH | 60 min |
| Apr 16, 10:39 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 16, 12:02 PM EDT | Tornado Watch | SPC | 11 hr |
| Apr 16, 12:16 PM EDT | Mesoscale Discussion | SPC | 59 min |
| Apr 16, 2:28 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Apr 16, 3:25 PM EDT | Tornado Warning | RAH | 50 min |
| Apr 16, 3:38 PM EDT | Areal Flood Advisory | RAH | 3 hr |
| Apr 16, 3:57 PM EDT | Tornado Warning | RAH | 48 min |
| Apr 16, 3:59 PM EDT | Tornado Warning | RAH | 46 min |
| Apr 26, 2:16 PM EDT | Mesoscale Discussion | SPC | 59 min |
| Apr 27, 12:51 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Apr 27, 1:23 PM EDT | Tornado Watch | SPC | 5 hr |
| Apr 27, 1:29 PM EDT | Special Weather Statement | RAH | 61 min |
| Apr 27, 1:36 PM EDT | Severe Thunderstorm Warning | RAH | 54 min |
| Apr 27, 1:41 PM EDT | Severe Thunderstorm Warning | RAH | 64 min |
| Apr 27, 6:00 PM EDT | Mesoscale Discussion | SPC | 60 min |
| Apr 27, 6:15 PM EDT | Tornado Watch | SPC | 6 hr |
| Apr 28, 4:30 AM EDT | Tornado Watch | SPC | 10 hr |
| Apr 28, 5:35 AM EDT | High Wind Warning | RAH | 8 hr |
| May 4, 1:12 AM EDT | Special Weather Statement | RAH | 48 min |
| May 6, 2:55 PM EDT | Special Weather Statement | RAH | 65 min |
| May 6, 5:35 PM EDT | Special Weather Statement | RAH | 55 min |
| May 7, 1:16 AM EDT | Dense Fog Advisory | RAH | 8 hr |
| May 13, 4:44 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 14, 7:32 PM EDT | Mesoscale Discussion | SPC | 58 min |
| May 17, 11:14 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 17, 8:57 PM EDT | Severe Thunderstorm Warning | RAH | 38 min |
| May 17, 9:42 PM EDT | Special Weather Statement | RAH | 63 min |
| May 23, 12:26 AM EDT | Special Weather Statement | RAH | 64 min |
| May 23, 3:27 AM EDT | Special Weather Statement | RAH | 63 min |
| May 23, 4:32 AM EDT | Special Weather Statement | RAH | 58 min |
| May 23, 2:33 PM EDT | Mesoscale Discussion | SPC | 87 min |
| May 23, 3:16 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 23, 7:02 PM EDT | Mesoscale Discussion | SPC | 58 min |
| May 24, 12:15 PM EDT | Mesoscale Discussion | SPC | 90 min |
| May 24, 12:42 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 24, 2:07 PM EDT | Special Weather Statement | RAH | 38 min |
| May 24, 2:15 PM EDT | Special Weather Statement | RAH | 30 min |
| May 24, 3:33 PM EDT | Mesoscale Discussion | SPC | 87 min |
| May 24, 8:35 PM EDT | Special Weather Statement | RAH | 55 min |
| May 24, 8:40 PM EDT | Mesoscale Discussion | SPC | 65 min |
| May 27, 11:25 AM EDT | Special Weather Statement | RAH | 90 min |
| May 27, 11:26 AM EDT | Mesoscale Discussion | SPC | 94 min |
| May 27, 12:06 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 27, 1:14 PM EDT | Severe Thunderstorm Warning | RAH | 61 min |
| May 27, 2:11 PM EDT | Severe Thunderstorm Warning | RAH | 49 min |
| May 27, 2:25 PM EDT | Flash Flood Watch | RAH | 14 hr |
| May 27, 3:11 PM EDT | Special Weather Statement | RAH | 64 min |
| May 27, 3:29 PM EDT | Mesoscale Discussion | SPC | 91 min |
| May 27, 6:24 PM EDT | Mesoscale Discussion | SPC | 66 min |
| May 28, 1:01 PM EDT | Special Weather Statement | RAH | 119 min |
| Jun 9, 5:56 PM EDT | Special Weather Statement | RAH | 64 min |
| Jun 9, 6:04 PM EDT | Severe Thunderstorm Warning | RAH | 41 min |
| Jun 11, 7:21 PM EDT | Special Weather Statement | RAH | 54 min |
| Jun 12, 5:38 PM EDT | Mesoscale Discussion | SPC | 67 min |
| Jun 12, 6:24 PM EDT | Special Weather Statement | RAH | 51 min |
| Jun 12, 7:01 PM EDT | Special Weather Statement | RAH | 59 min |
| Jun 18, 5:46 PM EDT | Mesoscale Discussion | SPC | 59 min |
| Jun 18, 7:14 PM EDT | Severe Thunderstorm Warning | RAH | 61 min |
| Jun 19, 11:12 PM EDT | Special Weather Statement | RAH | 63 min |
| Jun 21, 6:47 AM EDT | Special Weather Statement | RAH | 58 min |
| Jun 21, 7:49 AM EDT | Special Weather Statement | RAH | 56 min |
| Jun 21, 8:45 AM EDT | Special Weather Statement | RAH | 90 min |
| Jun 24, 1:05 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 24, 10:18 PM EDT | Special Weather Statement | RAH | 57 min |
| Jun 24, 10:24 PM EDT | Severe Thunderstorm Warning | RAH | 51 min |
| Jun 27, 1:15 PM EDT | Mesoscale Discussion | SPC | 60 min |
| Jun 27, 10:48 PM EDT | Special Weather Statement | RAH | 57 min |
| Jun 28, 2:44 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Jun 28, 3:54 PM EDT | Severe Thunderstorm Warning | RAH | 36 min |
| Jun 28, 4:39 PM EDT | Severe Thunderstorm Warning | RAH | 66 min |
| Jul 4, 2:34 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 4, 5:14 PM EDT | Severe Thunderstorm Warning | RAH | 46 min |
| Jul 6, 12:53 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Jul 6, 5:44 PM EDT | Special Weather Statement | RAH | 91 min |
| Jul 6, 7:38 PM EDT | Areal Flood Advisory | RAH | 2 hr |
| Jul 6, 7:59 PM EDT | Special Weather Statement | RAH | 61 min |
| Jul 7, 4:51 PM EDT | Special Weather Statement | RAH | 39 min |
| Jul 7, 5:31 PM EDT | Severe Thunderstorm Warning | RAH | 32 min |
| Jul 8, 1:01 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Jul 11, 3:28 PM EDT | Heat Advisory | RAH | 30 hr |
| Jul 12, 6:48 PM EDT | Mesoscale Discussion | SPC | 57 min |
| Jul 13, 1:43 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Jul 13, 2:21 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 13, 4:30 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Jul 13, 7:36 PM EDT | Mesoscale Discussion | SPC | 54 min |
| Jul 19, 3:15 PM EDT | Heat Advisory | RAH | 30 hr |
| Jul 20, 3:43 PM EDT | Excessive Heat Watch | RAH | 23 hr |
| Jul 20, 3:43 PM EDT | Heat Advisory | RAH | 28 hr |
| Jul 21, 2:59 PM EDT | Excessive Heat Watch | RAH | 7 hr |
| Jul 21, 2:59 PM EDT | Excessive Heat Warning | RAH | 53 hr |
| Jul 21, 2:59 PM EDT | Heat Advisory | RAH | 29 hr |
| Jul 21, 6:18 PM EDT | Special Weather Statement | RAH | 27 min |
| Jul 23, 2:43 PM EDT | Heat Advisory | RAH | 28 hr |
| Jul 23, 6:17 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Jul 24, 6:34 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Jul 25, 7:23 PM EDT | Mesoscale Discussion | SPC | 67 min |
| Jul 28, 4:20 AM EDT | Excessive Heat Watch | RAH | 34 hr |
| Jul 28, 4:20 AM EDT | Heat Advisory | RAH | 17 hr |
| Jul 29, 4:05 AM EDT | Heat Advisory | RAH | 17 hr |
| Jul 29, 2:24 PM EDT | Heat Advisory | RAH | 31 hr |
| Jul 30, 2:49 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Aug 3, 2:52 PM EDT | Heat Advisory | RAH | 29 hr |
| Aug 7, 12:52 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Aug 13, 1:33 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Aug 14, 1:50 PM EDT | Mesoscale Discussion | SPC | 55 min |
| Aug 14, 6:37 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Aug 19, 2:59 PM EDT | Special Weather Statement | RAH | 61 min |
| Aug 19, 4:17 PM EDT | Areal Flood Advisory | RAH | 67 min |
| Aug 21, 1:45 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Aug 21, 2:06 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 21, 3:36 PM EDT | Severe Thunderstorm Warning | RAH | 39 min |
| Aug 21, 4:31 PM EDT | Special Weather Statement | RAH | 44 min |
| Aug 21, 4:48 PM EDT | Severe Thunderstorm Warning | RAH | 42 min |
| Aug 21, 6:42 PM EDT | Mesoscale Discussion | SPC | 63 min |
| Aug 25, 3:31 PM EDT | Flash Flood Watch | RAH | 53 hr |
| Aug 26, 12:25 PM EDT | Wind Advisory | RAH | 33 hr |
| Aug 26, 11:06 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Aug 27, 7:26 AM EDT | Areal Flood Advisory | RAH | 5 hr |
| Aug 29, 2:13 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 29, 3:28 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 29, 3:52 PM EDT | Special Weather Statement | RAH | 53 min |
| Aug 29, 6:08 PM EDT | Special Weather Statement | RAH | 67 min |
| Aug 29, 7:53 PM EDT | Mesoscale Discussion | SPC | 67 min |
| Sep 5, 3:57 AM EDT | Flash Flood Watch | RAH | 50 hr |
| Sep 5, 5:52 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Sep 5, 6:26 PM EDT | Special Weather Statement | RAH | 64 min |
| Sep 6, 4:36 AM EDT | Mesoscale Discussion | SPC | 84 min |
| Sep 6, 5:17 AM EDT | Tornado Watch | SPC | 9 hr |
| Sep 6, 6:19 AM EDT | Tornado Warning | RAH | 33 min |
| Sep 6, 8:35 AM EDT | Mesoscale Discussion | SPC | 85 min |
| Sep 6, 9:22 AM EDT | Special Weather Statement | RAH | 68 min |
| Sep 6, 10:08 AM EDT | Special Weather Statement | RAH | 67 min |
| Sep 6, 10:09 AM EDT | Tornado Warning | RAH | 51 min |
| Sep 6, 10:27 AM EDT | Tornado Warning | RAH | 63 min |
| Sep 6, 12:41 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Sep 6, 1:32 PM EDT | Tornado Watch | SPC | 7 hr |
| Sep 6, 2:07 PM EDT | Special Weather Statement | RAH | 53 min |
| Sep 6, 3:34 PM EDT | Severe Thunderstorm Warning | RAH | 56 min |
| Sep 6, 4:41 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Sep 6, 7:33 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Sep 15, 4:07 PM EDT | Special Weather Statement | RAH | 53 min |
| Sep 15, 5:14 PM EDT | Special Weather Statement | RAH | 91 min |
| Sep 22, 3:31 PM EDT | Flash Flood Watch | RAH | 24 hr |
| Sep 24, 3:35 AM EDT | Dense Fog Advisory | RAH | 6 hr |
| Sep 28, 2:50 AM EDT | Special Weather Statement | RAH | 85 min |
| Sep 30, 1:39 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 30, 5:32 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Oct 19, 6:26 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 28, 3:42 PM EDT | Freeze Watch | RAH | 12 hr |
| Oct 29, 4:11 AM EDT | Freeze Warning | RAH | 29 hr |
| Nov 9, 3:36 AM EST | Dense Fog Advisory | RAH | 5 hr |
| Nov 10, 3:22 AM EST | Dense Fog Advisory | RAH | 7 hr |
| Nov 16, 4:06 PM EST | Mesoscale Discussion | SPC | 114 min |
| Nov 16, 4:30 PM EST | Tornado Watch | SPC | 7 hr |
| Nov 16, 9:35 PM EST | Special Weather Statement | RAH | 40 min |
| Nov 22, 3:52 AM EST | Dense Fog Advisory | RAH | 5 hr |
| Nov 23, 1:38 AM EST | Special Weather Statement | RAH | 52 min |
| Dec 7, 4:56 PM EST | Mesoscale Discussion | SPC | 94 min |
| Dec 7, 5:31 PM EST | Severe Thunderstorm Warning | RAH | 44 min |
| Dec 7, 5:42 PM EST | Mesoscale Discussion | SPC | 33 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 | 18 |
| Tornado Warning | 6 |
| Severe Thunderstorm Watch | 11 |
| Tornado Watch | 8 |
| Mesoscale Discussion | 58 |
| Special Weather Statement | 49 |
| Flooding | |
| Flash Flood Watch | 4 |
| Areal Flood Advisory | 4 |
| Winter | |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 3 |
| Heat | |
| Excessive Heat Warning | 1 |
| Excessive Heat Watch | 3 |
| Heat Advisory | 9 |
| Cold | |
| Freeze Warning | 3 |
| Freeze Watch | 2 |
| Frost Advisory | 3 |
| Wind and dust | |
| High Wind Warning | 1 |
| Wind Advisory | 6 |
| Fire | |
| Red Flag Warning | 3 |
| Fire Weather Watch | 3 |
| Fog and smoke | |
| Dense Fog Advisory | 5 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20102012
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.