Alert archive / North Carolina / Halifax County
Weather alerts in Halifax County, North Carolina, 2008
161 weather alerts in 2008, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Halifax County and its neighbors
Each county as a circle sized by its count in 2008. Tap one for its archive.
- Alerts
- 161
- Warnings
- 50
- Watches
- 34
- Advisories
- 30
- Busiest month
- July25 alerts
- Busiest day
- April 20, 200811 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 Halifax County in 2008 had a tornado report inside them; 1 of 1 tornado reports fell inside a warning, on average 4 minutes after it went out.
Halifax County, 2008
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 4 | 1 | 75% | 1 | 100% | 4 min |
| Severe thunderstorm warnings | 31 | 18 | 42% | 30 | 77% | 26 min |
| Flash flood warnings | 5 | 5 | 0% | 6 | 100% | 38 min |
Each office's whole area, 2008
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Raleigh, NC: tornado warnings | 62 | 15 | 76% | 41 | 85% | 17 min |
| NWS Raleigh, NC: severe thunderstorm warnings | 469 | 256 | 45% | 483 | 87% | 23 min |
| NWS Raleigh, NC: flash flood warnings | 84 | 50 | 40% | 89 | 90% | 76 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 1, 3:13 PM EST | Red Flag Warning | RAH | 26 hr |
| Jan 8, 3:36 AM EST | Dense Fog Advisory | RAH | 6 hr |
| Jan 16, 3:08 AM EST | Winter Weather Advisory | RAH | 30 hr |
| Jan 18, 4:26 AM EST | Winter Storm Watch | RAH | 12 hr |
| Jan 18, 4:39 PM EST | Winter Storm Warning | RAH | 31 hr |
| Feb 9, 5:15 AM EST | Fire Weather Watch | RAH | 10 hr |
| Feb 9, 3:02 PM EST | Red Flag Warning | RAH | 30 hr |
| Feb 10, 10:30 AM EST | Wind Advisory | RAH | 11 hr |
| Feb 18, 2:30 AM EST | Tornado Watch | SPC | 7 hr |
| Feb 19, 4:29 PM EST | Red Flag Warning | RAH | 27 hr |
| Feb 21, 4:01 AM EST | Winter Weather Advisory | RAH | 29 hr |
| Feb 22, 12:40 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Mar 4, 6:33 AM EST | Mesoscale Discussion | SPC | 87 min |
| Mar 4, 4:31 PM EST | Tornado Watch | SPC | 8 hr |
| Mar 4, 8:46 PM EST | Tornado Warning | RAH | 28 min |
| Mar 4, 9:56 PM EST | Mesoscale Discussion | SPC | 64 min |
| Mar 4, 10:40 PM EST | Severe Thunderstorm Warning | RAH | 65 min |
| Mar 4, 11:45 PM EST | Severe Thunderstorm Warning | RAH | 47 min |
| Mar 4, 11:57 PM EST | Severe Thunderstorm Warning | RAH | 51 min |
| Mar 7, 3:00 PM EST | Wind Advisory | RAH | 27 hr |
| Mar 8, 6:12 AM EST | Tornado Watch | SPC | 6 hr |
| Mar 27, 11:22 AM EDT | Red Flag Warning | RAH | 10 hr |
| Apr 10, 6:39 AM EDT | Dense Fog Advisory | RAH | 3 hr |
| Apr 11, 6:47 AM EDT | Dense Fog Advisory | RAH | 2 hr |
| Apr 12, 9:48 AM EDT | Mesoscale Discussion | SPC | 117 min |
| Apr 12, 1:48 PM EDT | Mesoscale Discussion | SPC | 57 min |
| Apr 12, 2:12 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Apr 12, 3:27 PM EDT | Severe Thunderstorm Warning | RAH | 25 min |
| Apr 15, 3:50 PM EDT | Frost Advisory | RAH | 16 hr |
| Apr 16, 2:57 PM EDT | Frost Advisory | RAH | 17 hr |
| Apr 20, 1:14 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 20, 1:47 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Apr 20, 2:31 PM EDT | Severe Thunderstorm Warning | RAH | 29 min |
| Apr 20, 2:57 PM EDT | Severe Thunderstorm Warning | RAH | 33 min |
| Apr 20, 3:19 PM EDT | Flash Flood Warning | RAH | 116 min |
| Apr 20, 4:00 PM EDT | Severe Thunderstorm Warning | RAH | 45 min |
| Apr 20, 4:20 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Apr 20, 4:49 PM EDT | Severe Thunderstorm Warning | RAH | 41 min |
| Apr 20, 5:12 PM EDT | Flash Flood Warning | RAH | 2 hr |
| Apr 20, 5:26 PM EDT | Severe Thunderstorm Warning | RAH | 49 min |
| Apr 20, 7:14 PM EDT | Mesoscale Discussion | SPC | 61 min |
| Apr 20, 8:30 PM EDT | Flash Flood Warning | RAH | 2 hr |
| Apr 21, 11:14 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 28, 12:50 PM EDT | Mesoscale Discussion | SPC | 55 min |
| Apr 28, 3:16 PM EDT | Tornado Watch | SPC | 5 hr |
| May 9, 2:32 AM EDT | Mesoscale Discussion | SPC | 88 min |
| May 9, 3:00 AM EDT | Tornado Watch | SPC | 8 hr |
| May 9, 5:04 AM EDT | Mesoscale Discussion | SPC | 56 min |
| May 9, 6:37 AM EDT | Mesoscale Discussion | SPC | 53 min |
| May 9, 7:05 AM EDT | Severe Thunderstorm Warning | RAH | 40 min |
| May 9, 7:27 AM EDT | Tornado Warning | RAH | 18 min |
| May 9, 8:29 AM EDT | Mesoscale Discussion | SPC | 61 min |
| May 9, 11:08 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| May 11, 1:39 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 11, 2:07 PM EDT | Tornado Watch | SPC | 6 hr |
| May 11, 4:18 PM EDT | Mesoscale Discussion | SPC | 87 min |
| May 11, 5:32 PM EDT | Severe Thunderstorm Warning | RAH | 43 min |
| May 20, 1:09 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 20, 3:52 PM EDT | Severe Thunderstorm Warning | RAH | 37 min |
| May 20, 4:26 PM EDT | Severe Thunderstorm Warning | RAH | 64 min |
| May 20, 4:38 PM EDT | Mesoscale Discussion | SPC | 67 min |
| May 20, 4:54 PM EDT | Severe Thunderstorm Warning | RAH | 39 min |
| May 31, 4:04 PM EDT | Mesoscale Discussion | SPC | 56 min |
| May 31, 4:23 PM EDT | Tornado Watch | SPC | 4 hr |
| May 31, 7:37 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Jun 1, 5:56 PM EDT | Severe Thunderstorm Warning | RAH | 49 min |
| Jun 1, 6:09 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Jun 1, 6:18 PM EDT | Severe Thunderstorm Warning | RAH | 42 min |
| Jun 5, 3:00 AM EDT | Heat Advisory | RAH | 17 hr |
| Jun 5, 10:47 PM EDT | Dense Smoke Advisory | RAH | 9 hr |
| Jun 6, 3:13 AM EDT | Heat Advisory | RAH | 17 hr |
| Jun 6, 2:34 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 6, 3:33 PM EDT | Heat Advisory | RAH | 28 hr |
| Jun 7, 2:24 PM EDT | Heat Advisory | RAH | 30 hr |
| Jun 8, 2:58 PM EDT | Heat Advisory | RAH | 29 hr |
| Jun 9, 3:43 PM EDT | Heat Advisory | RAH | 28 hr |
| Jun 13, 11:17 AM EDT | Dense Smoke Advisory | RAH | 13 hr |
| Jun 16, 6:55 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Jun 23, 9:21 PM EDT | Severe Thunderstorm Warning | RAH | 24 min |
| Jun 27, 8:08 PM EDT | Severe Thunderstorm Warning | RAH | 52 min |
| Jun 27, 9:22 PM EDT | Severe Thunderstorm Warning | RAH | 24 min |
| Jun 29, 1:35 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 29, 8:35 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Jun 29, 9:00 PM EDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Jun 29, 11:41 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Jul 5, 5:20 PM EDT | Severe Thunderstorm Warning | RAH | 37 min |
| Jul 5, 5:27 PM EDT | Severe Thunderstorm Warning | RAH | 63 min |
| Jul 5, 5:36 PM EDT | Flash Flood Warning | RAH | 3 hr |
| Jul 8, 12:34 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Jul 8, 1:03 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 8, 2:04 PM EDT | Severe Thunderstorm Warning | RAH | 41 min |
| Jul 8, 2:49 PM EDT | Severe Thunderstorm Warning | RAH | 56 min |
| Jul 8, 2:58 PM EDT | Severe Thunderstorm Warning | RAH | 62 min |
| Jul 8, 6:34 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jul 8, 9:11 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Jul 9, 4:37 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 9, 6:41 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Jul 9, 6:52 PM EDT | Severe Thunderstorm Warning | RAH | 53 min |
| Jul 22, 11:15 AM EDT | Heat Advisory | RAH | 8 hr |
| Jul 23, 12:44 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 23, 3:03 PM EDT | Severe Thunderstorm Warning | RAH | 42 min |
| Jul 23, 3:54 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Jul 23, 7:28 PM EDT | Mesoscale Discussion | SPC | 62 min |
| Jul 27, 1:04 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 27, 1:26 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 28, 12:54 AM EDT | Severe Thunderstorm Warning | RAH | 29 min |
| Jul 31, 1:53 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 31, 3:51 PM EDT | Severe Thunderstorm Warning | RAH | 54 min |
| Jul 31, 4:27 PM EDT | Mesoscale Discussion | SPC | 63 min |
| Jul 31, 4:38 PM EDT | Severe Thunderstorm Warning | RAH | 36 min |
| Aug 2, 12:02 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 10, 6:50 PM EDT | Severe Thunderstorm Warning | RAH | 40 min |
| Aug 10, 8:22 PM EDT | Severe Thunderstorm Warning | RAH | 53 min |
| Aug 14, 2:37 AM EDT | Dense Fog Advisory | RAH | 6 hr |
| Aug 15, 1:18 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 15, 3:56 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Aug 27, 9:16 AM EDT | Tornado Watch | SPC | 8 hr |
| Aug 27, 12:24 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Aug 27, 2:34 PM EDT | Mesoscale Discussion | SPC | 56 min |
| Aug 27, 2:48 PM EDT | Tornado Warning | RAH | 42 min |
| Aug 27, 2:53 PM EDT | Areal Flood Advisory | RAH | 112 min |
| Aug 27, 4:26 PM EDT | Mesoscale Discussion | SPC | 34 min |
| Aug 28, 2:56 AM EDT | Mesoscale Discussion | SPC | 94 min |
| Sep 5, 4:18 AM EDT | High Wind Watch | RAH | 11 hr |
| Sep 5, 3:11 PM EDT | Flash Flood Watch | RAH | 21 hr |
| Sep 5, 3:40 PM EDT | High Wind Warning | RAH | 20 hr |
| Sep 5, 3:40 PM EDT | Wind Advisory | RAH | 24 hr |
| Sep 5, 4:39 PM EDT | Tornado Watch | SPC | 12 hr |
| Sep 5, 9:06 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Sep 6, 4:45 AM EDT | Tornado Watch | SPC | 8 hr |
| Sep 6, 4:53 AM EDT | Flash Flood Warning | RAH | 6 hr |
| Sep 6, 12:41 PM EDT | Areal Flood Warning | RAH | 3 hr |
| Sep 9, 1:41 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Sep 9, 2:05 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Sep 9, 4:49 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Sep 24, 3:39 PM EDT | Wind Advisory | RAH | 35 hr |
| Sep 26, 12:27 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Oct 1, 12:28 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Oct 1, 1:40 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Oct 19, 3:53 AM EDT | Frost Advisory | RAH | 28 hr |
| Oct 22, 3:22 AM EDT | Frost Advisory | RAH | 30 hr |
| Oct 25, 4:44 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Oct 28, 4:02 AM EDT | Freeze Warning | RAH | 29 hr |
| Oct 29, 10:29 AM EDT | Frost Advisory | RAH | 5 hr |
| Oct 29, 3:49 PM EDT | Freeze Warning | RAH | 17 hr |
| Nov 15, 12:24 AM EST | Tornado Watch | SPC | 9 hr |
| Nov 15, 3:10 AM EST | Mesoscale Discussion | SPC | 95 min |
| Nov 15, 4:04 AM EST | Tornado Warning | RAH | 41 min |
| Nov 15, 4:10 AM EST | Mesoscale Discussion | SPC | 65 min |
| Nov 15, 11:07 AM EST | Mesoscale Discussion | SPC | 53 min |
| Nov 15, 1:25 PM EST | Tornado Watch | SPC | 7 hr |
| Dec 10, 3:09 PM EST | Flash Flood Watch | RAH | 29 hr |
| Dec 11, 11:43 AM EST | Tornado Watch | SPC | 9 hr |
| Dec 11, 1:28 PM EST | Mesoscale Discussion | SPC | 92 min |
| Dec 11, 3:49 PM EST | Areal Flood Advisory | RAH | 3 hr |
| Dec 11, 3:57 PM EST | Mesoscale Discussion | SPC | 2 hr |
| Dec 11, 6:58 PM EST | Areal Flood Advisory | RAH | 3 hr |
| Dec 18, 2:50 PM EST | Dense Fog Advisory | RAH | 20 hr |
| Dec 27, 5:34 PM EST | Dense Fog Advisory | RAH | 12 hr |
| Dec 31, 3:29 AM EST | Wind Advisory | RAH | 12 hr |
| Dec 31, 11:37 AM EST | Red Flag Warning | RAH | 6 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 | 31 |
| Tornado Warning | 4 |
| Severe Thunderstorm Watch | 16 |
| Tornado Watch | 13 |
| Mesoscale Discussion | 47 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 5 |
| Flash Flood Watch | 2 |
| Areal Flood Advisory | 3 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 2 |
| Heat | |
| Heat Advisory | 7 |
| Cold | |
| Freeze Warning | 2 |
| Frost Advisory | 5 |
| Wind and dust | |
| High Wind Warning | 1 |
| High Wind Watch | 1 |
| Wind Advisory | 5 |
| Fire | |
| Red Flag Warning | 5 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 6 |
| Dense Smoke Advisory | 2 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20072009
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.