Alert archive / North Carolina / Northampton County
Weather alerts in Northampton County, North Carolina, 2011
173 weather alerts in 2011, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Northampton County and its neighbors
Each county as a circle sized by its count in 2011. Tap one for its archive.
- Alerts
- 173
- Warnings
- 34
- Watches
- 26
- Advisories
- 17
- Busiest month
- July28 alerts
- Busiest day
- September 6, 201110 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 4 tornado warnings covering Northampton County in 2011 had a tornado report inside them.
Northampton County, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 4 | 1 | 75% | 0 | ||
| Severe thunderstorm warnings | 22 | 15 | 32% | 7 | 86% | 23 min |
| Flash flood warnings | 1 | 0 | 100% | 0 |
Each office's whole area, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Wakefield, VA: tornado warnings | 84 | 23 | 73% | 43 | 77% | 14 min |
| NWS Wakefield, VA: severe thunderstorm warnings | 241 | 150 | 38% | 386 | 79% | 19 min |
| NWS Wakefield, VA: flash flood warnings | 11 | 8 | 27% | 35 | 86% | 70 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, 4:42 AM EST | Winter Weather Advisory | AKQ | 17 hr |
| Jan 10, 5:42 AM EST | Winter Weather Advisory | AKQ | 37 hr |
| Jan 26, 12:30 PM EST | Special Weather Statement | AKQ | 60 min |
| Feb 9, 3:02 PM EST | Winter Weather Advisory | AKQ | 18 hr |
| Feb 13, 3:04 PM EST | Fire Weather Watch | AKQ | 13 hr |
| Feb 14, 4:30 AM EST | Red Flag Warning | AKQ | 15 hr |
| Feb 18, 3:44 AM EST | Fire Weather Watch | AKQ | 11 hr |
| Feb 18, 2:57 PM EST | Red Flag Warning | AKQ | 30 hr |
| Feb 24, 3:40 PM EST | Wind Advisory | AKQ | 32 hr |
| Mar 6, 12:06 PM EST | Mesoscale Discussion | SPC | 84 min |
| Mar 6, 1:57 PM EST | Special Weather Statement | AKQ | 63 min |
| Mar 6, 6:20 PM EST | Severe Thunderstorm Warning | AKQ | 55 min |
| Mar 6, 6:24 PM EST | Tornado Watch | SPC | 4 hr |
| Mar 6, 8:04 PM EST | Mesoscale Discussion | SPC | 56 min |
| Mar 10, 1:25 PM EST | Severe Thunderstorm Watch | SPC | 7 hr |
| Mar 10, 4:26 PM EST | Mesoscale Discussion | SPC | 94 min |
| Mar 10, 4:38 PM EST | Severe Thunderstorm Warning | AKQ | 52 min |
| Mar 10, 5:51 PM EST | Special Weather Statement | AKQ | 54 min |
| Mar 23, 6:04 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Mar 23, 10:12 PM EDT | Special Weather Statement | AKQ | 33 min |
| Mar 23, 10:26 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Apr 5, 2:18 AM EDT | Tornado Watch | SPC | 8 hr |
| Apr 5, 3:34 AM EDT | Mesoscale Discussion | SPC | 116 min |
| Apr 5, 4:45 AM EDT | Special Weather Statement | AKQ | 60 min |
| Apr 5, 10:00 AM EDT | Special Weather Statement | AKQ | 60 min |
| Apr 5, 10:15 AM EDT | Mesoscale Discussion | SPC | 90 min |
| Apr 5, 10:19 AM EDT | Severe Thunderstorm Warning | AKQ | 56 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, 4:49 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Apr 16, 5:12 PM EDT | Tornado Warning | AKQ | 33 min |
| Apr 16, 6:35 PM EDT | Tornado Warning | AKQ | 25 min |
| Apr 16, 6:59 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Apr 16, 7:47 PM EDT | Severe Thunderstorm Warning | AKQ | 28 min |
| Apr 26, 2:16 PM EDT | Special Weather Statement | AKQ | 59 min |
| Apr 26, 2:16 PM EDT | Mesoscale Discussion | SPC | 59 min |
| Apr 26, 2:34 PM EDT | Severe Thunderstorm Warning | AKQ | 41 min |
| Apr 27, 12:51 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Apr 27, 2:33 PM EDT | Special Weather Statement | AKQ | 42 min |
| Apr 28, 7:38 AM EDT | Tornado Watch | SPC | 7 hr |
| Apr 28, 2:41 PM EDT | Tornado Watch | SPC | 6 hr |
| Apr 28, 6:33 PM EDT | Mesoscale Discussion | SPC | 57 min |
| May 14, 1:44 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 14, 4:21 PM EDT | Mesoscale Discussion | SPC | 84 min |
| May 14, 6:03 PM EDT | Severe Thunderstorm Warning | AKQ | 42 min |
| May 14, 7:32 PM EDT | Mesoscale Discussion | SPC | 58 min |
| May 15, 1:38 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 17, 11:04 AM EDT | Special Weather Statement | AKQ | 56 min |
| May 17, 11:14 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 23, 3:16 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 23, 6:07 PM EDT | Severe Thunderstorm Warning | AKQ | 38 min |
| May 23, 6:13 PM EDT | Severe Thunderstorm Warning | AKQ | 47 min |
| May 23, 6:50 PM EDT | Severe Thunderstorm Warning | AKQ | 40 min |
| May 23, 7:12 PM EDT | Severe Thunderstorm Warning | AKQ | 33 min |
| May 23, 7:17 PM EDT | Severe Thunderstorm Warning | AKQ | 43 min |
| May 23, 7:31 PM EDT | Areal Flood Advisory | AKQ | 59 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, 3:23 PM EDT | Severe Thunderstorm Warning | AKQ | 52 min |
| May 24, 3:33 PM EDT | Mesoscale Discussion | SPC | 87 min |
| May 24, 8:40 PM EDT | Mesoscale Discussion | SPC | 65 min |
| May 24, 9:49 PM EDT | Special Weather Statement | AKQ | 41 min |
| May 24, 9:57 PM EDT | Severe Thunderstorm Warning | AKQ | 37 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, 3:29 PM EDT | Mesoscale Discussion | SPC | 91 min |
| May 28, 1:28 PM EDT | Special Weather Statement | AKQ | 32 min |
| Jun 10, 4:25 PM EDT | Special Weather Statement | AKQ | 65 min |
| Jun 10, 5:53 PM EDT | Special Weather Statement | AKQ | 52 min |
| Jun 10, 6:06 PM EDT | Severe Thunderstorm Warning | AKQ | 24 min |
| Jun 11, 10:00 PM EDT | Special Weather Statement | AKQ | 60 min |
| Jun 16, 6:01 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Jun 23, 1:40 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 24, 1:05 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 24, 3:17 PM EDT | Special Weather Statement | AKQ | 43 min |
| Jun 24, 4:13 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Jun 24, 9:45 PM EDT | Special Weather Statement | AKQ | 60 min |
| Jun 24, 10:31 PM EDT | Special Weather Statement | AKQ | 59 min |
| Jun 24, 11:23 PM EDT | Special Weather Statement | AKQ | 52 min |
| Jun 25, 12:13 AM EDT | Special Weather Statement | AKQ | 62 min |
| Jun 27, 1:15 PM EDT | Mesoscale Discussion | SPC | 60 min |
| Jun 27, 1:34 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 27, 4:07 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Jun 27, 5:32 PM EDT | Special Weather Statement | AKQ | 43 min |
| Jun 27, 6:20 PM EDT | Special Weather Statement | AKQ | 25 min |
| Jun 28, 2:44 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Jun 28, 5:50 PM EDT | Special Weather Statement | AKQ | 55 min |
| Jul 4, 2:34 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 4, 4:03 PM EDT | Special Weather Statement | AKQ | 42 min |
| Jul 4, 4:15 PM EDT | Severe Thunderstorm Warning | AKQ | 45 min |
| Jul 4, 4:57 PM EDT | Severe Thunderstorm Warning | AKQ | 48 min |
| Jul 4, 4:58 PM EDT | Severe Thunderstorm Warning | AKQ | 47 min |
| Jul 4, 5:21 PM EDT | Flash Flood Warning | AKQ | 114 min |
| Jul 4, 6:44 PM EDT | Mesoscale Discussion | SPC | 61 min |
| Jul 4, 7:04 PM EDT | Special Weather Statement | AKQ | 56 min |
| Jul 6, 12:53 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Jul 6, 6:35 PM EDT | Special Weather Statement | AKQ | 55 min |
| Jul 7, 5:37 PM EDT | Severe Thunderstorm Warning | AKQ | 38 min |
| Jul 8, 1:01 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Jul 11, 3:35 PM EDT | Heat Advisory | AKQ | 28 hr |
| Jul 12, 3:47 PM EDT | Heat Advisory | AKQ | 24 hr |
| Jul 12, 6:48 PM EDT | Mesoscale Discussion | SPC | 57 min |
| Jul 13, 4:30 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Jul 13, 7:36 PM EDT | Mesoscale Discussion | SPC | 54 min |
| Jul 20, 3:23 AM EDT | Excessive Heat Watch | AKQ | 24 hr |
| Jul 20, 4:26 PM EDT | Excessive Heat Warning | AKQ | 3 days |
| Jul 23, 3:44 PM EDT | Heat Advisory | AKQ | 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, 5:56 PM EDT | Severe Thunderstorm Warning | AKQ | 49 min |
| Jul 25, 7:23 PM EDT | Mesoscale Discussion | SPC | 67 min |
| Jul 28, 2:00 PM EDT | Heat Advisory | AKQ | 30 hr |
| Jul 29, 3:58 PM EDT | Heat Advisory | AKQ | 26 hr |
| Jul 30, 10:43 PM EDT | Special Weather Statement | AKQ | 62 min |
| Jul 31, 8:10 AM EDT | Special Weather Statement | AKQ | 65 min |
| Aug 7, 11:40 AM EDT | Heat Advisory | AKQ | 7 hr |
| Aug 7, 8:11 PM EDT | Special Weather Statement | AKQ | 64 min |
| Aug 13, 1:33 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Aug 14, 6:37 PM EDT | Mesoscale Discussion | SPC | 53 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, 5:02 PM EDT | Severe Thunderstorm Warning | AKQ | 43 min |
| Aug 21, 6:42 PM EDT | Mesoscale Discussion | SPC | 63 min |
| Aug 25, 5:48 PM EDT | Tropical Storm Watch | AKQ | 12 hr |
| Aug 25, 6:24 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Aug 25, 8:01 PM EDT | Flash Flood Watch | AKQ | 4 hr |
| Aug 25, 11:51 PM EDT | Flood Watch | AKQ | 52 hr |
| Aug 26, 5:27 AM EDT | Tropical Storm Warning | AKQ | 57 hr |
| Aug 26, 11:06 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Aug 27, 12:32 AM EDT | Tornado Watch | SPC | 10 hr |
| Aug 27, 4:37 AM EDT | Areal Flood Warning | AKQ | 6 hr |
| Aug 27, 10:39 AM EDT | Areal Flood Warning | AKQ | 17 hr |
| Aug 27, 12:52 PM EDT | Areal Flood Warning | AKQ | 15 hr |
| Aug 29, 11:08 AM EDT | Mesoscale Discussion | SPC | 97 min |
| 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, 3:46 PM EDT | Special Weather Statement | AKQ | 59 min |
| Aug 29, 7:53 PM EDT | Mesoscale Discussion | SPC | 67 min |
| Sep 6, 5:17 AM EDT | Tornado Watch | SPC | 9 hr |
| Sep 6, 8:35 AM EDT | Mesoscale Discussion | SPC | 85 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, 4:15 PM EDT | Severe Thunderstorm Warning | AKQ | 45 min |
| Sep 6, 4:41 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Sep 6, 5:55 PM EDT | Special Weather Statement | AKQ | 35 min |
| Sep 6, 6:51 PM EDT | Special Weather Statement | AKQ | 39 min |
| Sep 6, 7:30 PM EDT | Special Weather Statement | AKQ | 45 min |
| Sep 6, 7:33 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Sep 7, 4:10 PM EDT | Mesoscale Discussion | SPC | 65 min |
| Sep 22, 2:57 PM EDT | Flash Flood Watch | AKQ | 29 hr |
| Sep 23, 2:17 PM EDT | Areal Flood Advisory | AKQ | 103 min |
| Sep 23, 3:02 PM EDT | Areal Flood Advisory | AKQ | 2 hr |
| Sep 24, 3:51 AM EDT | Dense Fog Advisory | AKQ | 5 hr |
| Sep 28, 3:52 AM EDT | Areal Flood Advisory | AKQ | 2 hr |
| Sep 28, 4:55 AM EDT | Special Weather Statement | AKQ | 65 min |
| Sep 30, 1:39 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 30, 5:32 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Sep 30, 7:31 PM EDT | Special Weather Statement | AKQ | 59 min |
| Oct 19, 6:26 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 19, 8:40 PM EDT | Special Weather Statement | AKQ | 65 min |
| Nov 9, 3:15 AM EST | Dense Fog Advisory | AKQ | 7 hr |
| Nov 9, 10:29 PM EST | Dense Fog Advisory | AKQ | 11 hr |
| Nov 16, 4:45 PM EST | Mesoscale Discussion | SPC | 90 min |
| Nov 16, 10:20 PM EST | Mesoscale Discussion | SPC | 55 min |
| Nov 16, 10:32 PM EST | Severe Thunderstorm Warning | AKQ | 43 min |
| Nov 16, 10:38 PM EST | Tornado Warning | AKQ | 37 min |
| Nov 16, 11:11 PM EST | Tornado Warning | AKQ | 34 min |
| Dec 7, 4:56 PM EST | Mesoscale Discussion | SPC | 94 min |
| Dec 7, 5:42 PM EST | Mesoscale Discussion | SPC | 33 min |
| Dec 7, 5:56 PM EST | Severe Thunderstorm Watch | SPC | 4 hr |
| Dec 27, 1:44 PM EST | Special Weather Statement | AKQ | 46 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 | 22 |
| Tornado Warning | 4 |
| Severe Thunderstorm Watch | 11 |
| Tornado Watch | 8 |
| Mesoscale Discussion | 60 |
| Special Weather Statement | 36 |
| Flooding | |
| Areal Flood Warning | 3 |
| Flash Flood Warning | 1 |
| Flash Flood Watch | 2 |
| Flood Watch | 1 |
| Areal Flood Advisory | 4 |
| Winter | |
| Winter Weather Advisory | 3 |
| Heat | |
| Excessive Heat Warning | 1 |
| Excessive Heat Watch | 1 |
| Heat Advisory | 6 |
| Wind and dust | |
| Wind Advisory | 1 |
| Fire | |
| Red Flag Warning | 2 |
| Fire Weather Watch | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 3 |
| Tropical | |
| Tropical Storm Warning | 1 |
| Tropical Storm Watch | 1 |
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.