Alert archive / North Carolina / Orange County
Weather alerts in Orange County, North Carolina, 2008
160 weather alerts in 2008, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Orange County and its neighbors
Each county as a circle sized by its count in 2008. Tap one for its archive.
- Alerts
- 160
- Warnings
- 49
- Watches
- 30
- Advisories
- 36
- Busiest month
- August27 alerts
- Busiest day
- August 27, 20089 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 Orange County in 2008 had a tornado report inside them.
Orange County, 2008
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 31 | 18 | 42% | 18 | 67% | 23 min |
| Flash flood warnings | 7 | 4 | 43% | 2 | 100% | 40 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 |
| Jan 21, 3:41 PM EST | Winter Weather Advisory | RAH | 21 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, 7:37 PM EST | Red Flag Warning | RAH | 22 hr |
| Feb 19, 4:29 PM EST | Red Flag Warning | RAH | 27 hr |
| Mar 4, 4:31 PM EST | Tornado Watch | SPC | 8 hr |
| Mar 4, 5:29 PM EST | Tornado Warning | RAH | 31 min |
| Mar 4, 5:43 PM EST | Severe Thunderstorm Warning | RAH | 34 min |
| Mar 4, 9:28 PM EST | Severe Thunderstorm Warning | RAH | 62 min |
| Mar 4, 9:56 PM EST | Mesoscale Discussion | SPC | 64 min |
| Mar 7, 3:00 PM EST | Wind Advisory | RAH | 27 hr |
| Mar 27, 11:22 AM EDT | Red Flag Warning | RAH | 10 hr |
| Apr 12, 9:48 AM EDT | Mesoscale Discussion | SPC | 117 min |
| Apr 14, 7:47 PM EDT | Frost Advisory | RAH | 8 hr |
| Apr 14, 7:47 PM EDT | Freeze Watch | RAH | 20 hr |
| Apr 15, 3:50 PM EDT | Freeze Warning | RAH | 16 hr |
| Apr 16, 2:57 PM EDT | Frost Advisory | RAH | 17 hr |
| Apr 19, 9:00 PM EDT | Mesoscale Discussion | SPC | 60 min |
| 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, 4:20 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Apr 28, 12:45 PM EDT | Severe Thunderstorm Warning | RAH | 45 min |
| Apr 28, 12:50 PM EDT | Mesoscale Discussion | SPC | 55 min |
| May 8, 7:20 PM EDT | Tornado Watch | SPC | 8 hr |
| May 8, 9:47 PM EDT | Mesoscale Discussion | SPC | 58 min |
| May 9, 12:06 AM EDT | Mesoscale Discussion | SPC | 54 min |
| 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, 11:08 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| May 9, 11:50 PM EDT | Severe Thunderstorm Warning | RAH | 40 min |
| May 10, 2:02 AM EDT | Mesoscale Discussion | SPC | 88 min |
| 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, 7:47 PM EDT | Severe Thunderstorm Watch | SPC | 3 hr |
| May 20, 1:09 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 20, 3:39 PM EDT | Severe Thunderstorm Warning | RAH | 56 min |
| May 20, 4:14 PM EDT | Severe Thunderstorm Warning | RAH | 46 min |
| May 20, 4:38 PM EDT | Mesoscale Discussion | SPC | 67 min |
| May 20, 4:42 PM EDT | Severe Thunderstorm Warning | RAH | 48 min |
| May 20, 5:13 PM EDT | Severe Thunderstorm Warning | RAH | 47 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, 5:11 PM EDT | Severe Thunderstorm Warning | RAH | 49 min |
| May 31, 5:49 PM EDT | Severe Thunderstorm Warning | RAH | 41 min |
| May 31, 6:09 PM EDT | Severe Thunderstorm Warning | RAH | 51 min |
| May 31, 7:37 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Jun 1, 6:09 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Jun 1, 6:16 PM EDT | Severe Thunderstorm Warning | RAH | 29 min |
| Jun 3, 3:54 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Jun 5, 3:00 AM EDT | Heat Advisory | RAH | 17 hr |
| Jun 6, 3:13 AM EDT | Heat Advisory | RAH | 17 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 12, 12:23 PM EDT | Dense Smoke Advisory | RAH | 20 hr |
| Jun 16, 6:55 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Jun 21, 6:18 PM EDT | Areal Flood Advisory | RAH | 94 min |
| Jun 22, 1:15 PM EDT | Severe Thunderstorm Watch | SPC | 11 hr |
| Jun 22, 4:00 PM EDT | Severe Thunderstorm Warning | RAH | 45 min |
| Jun 22, 4:28 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Jun 22, 6:33 PM EDT | Areal Flood Advisory | RAH | 117 min |
| Jun 22, 10:22 PM EDT | Flash Flood Watch | RAH | 3 hr |
| Jun 23, 6:11 PM EDT | Severe Thunderstorm Warning | RAH | 49 min |
| Jun 29, 1:35 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 29, 4:46 PM EDT | Mesoscale Discussion | SPC | 59 min |
| Jun 29, 7:06 PM EDT | Severe Thunderstorm Warning | RAH | 39 min |
| Jun 29, 8:35 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Jun 29, 8:36 PM EDT | Severe Thunderstorm Warning | RAH | 39 min |
| Jun 29, 9:00 PM EDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Jun 29, 11:41 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Jun 30, 1:14 AM EDT | Areal Flood Advisory | RAH | 2 hr |
| Jul 4, 9:03 PM EDT | Flash Flood Warning | RAH | 117 min |
| Jul 5, 4:07 PM EDT | Severe Thunderstorm Warning | RAH | 38 min |
| Jul 5, 8:59 PM EDT | Areal Flood Advisory | RAH | 2 hr |
| Jul 5, 9:10 PM EDT | Severe Thunderstorm Warning | RAH | 50 min |
| Jul 7, 10:47 PM EDT | Severe Thunderstorm Warning | RAH | 43 min |
| Jul 8, 12:34 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Jul 8, 6:34 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jul 8, 7:03 PM EDT | Severe Thunderstorm Warning | RAH | 57 min |
| Jul 9, 4:37 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 9, 5:06 PM EDT | Severe Thunderstorm Warning | RAH | 54 min |
| Jul 9, 5:54 PM EDT | Severe Thunderstorm Warning | RAH | 51 min |
| Jul 9, 6:41 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Jul 19, 7:20 PM EDT | Flash Flood Warning | RAH | 69 min |
| Jul 22, 11:15 AM EDT | Heat Advisory | RAH | 8 hr |
| Jul 22, 5:45 PM EDT | Severe Thunderstorm Warning | RAH | 27 min |
| Jul 23, 10:38 AM EDT | Mesoscale Discussion | SPC | 67 min |
| Jul 23, 12:44 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 23, 3:25 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 23, 3:54 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Jul 23, 8:22 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Jul 23, 8:29 PM EDT | Severe Thunderstorm Warning | RAH | 38 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 27, 2:45 PM EDT | Severe Thunderstorm Warning | RAH | 45 min |
| Jul 31, 1:24 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Jul 31, 1:53 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 2, 11:45 AM EDT | Mesoscale Discussion | SPC | 30 min |
| Aug 2, 12:02 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 2, 1:44 PM EDT | Severe Thunderstorm Warning | RAH | 46 min |
| Aug 2, 2:30 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Aug 2, 6:26 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Aug 7, 1:43 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Aug 10, 3:20 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Aug 10, 5:50 PM EDT | Severe Thunderstorm Warning | RAH | 40 min |
| Aug 14, 2:37 AM EDT | Dense Fog Advisory | RAH | 6 hr |
| Aug 14, 5:06 PM EDT | Severe Thunderstorm Warning | RAH | 39 min |
| Aug 15, 12:50 PM EDT | Mesoscale Discussion | SPC | 85 min |
| 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, 8:06 AM EDT | Areal Flood Advisory | RAH | 114 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, 4:23 PM EDT | Areal Flood Advisory | RAH | 2 hr |
| Aug 27, 4:26 PM EDT | Mesoscale Discussion | SPC | 34 min |
| Aug 27, 4:39 PM EDT | Severe Thunderstorm Warning | RAH | 51 min |
| Aug 27, 4:54 PM EDT | Severe Thunderstorm Warning | RAH | 41 min |
| Aug 27, 5:19 PM EDT | Flash Flood Warning | RAH | 3 hr |
| Aug 27, 8:15 PM EDT | Flash Flood Warning | RAH | 3 hr |
| Aug 27, 10:29 PM EDT | Flash Flood Warning | RAH | 3 hr |
| Aug 28, 2:56 AM EDT | Mesoscale Discussion | SPC | 94 min |
| Aug 30, 6:52 PM EDT | Severe Thunderstorm Warning | RAH | 38 min |
| Aug 31, 5:01 PM EDT | Areal Flood Advisory | RAH | 116 min |
| Sep 5, 3:11 PM EDT | Flash Flood Watch | RAH | 21 hr |
| Sep 5, 3:40 PM EDT | Wind Advisory | RAH | 24 hr |
| Sep 6, 2:27 AM EDT | Flash Flood Warning | RAH | 6 hr |
| Sep 6, 8:28 AM EDT | Flash 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 16, 12:32 PM EDT | Areal Flood Advisory | RAH | 3 hr |
| Sep 24, 3:39 PM EDT | Wind Advisory | RAH | 35 hr |
| Sep 26, 12:27 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Sep 28, 1:49 AM EDT | Dense Fog Advisory | RAH | 8 hr |
| Oct 19, 3:53 AM EDT | Frost Advisory | RAH | 28 hr |
| Oct 22, 3:22 AM EDT | Frost Advisory | RAH | 30 hr |
| Oct 27, 3:47 PM EDT | Freeze Watch | RAH | 12 hr |
| 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 21, 2:35 AM EST | Winter Weather Advisory | RAH | 4 hr |
| Dec 10, 3:09 PM EST | Flash Flood Watch | RAH | 29 hr |
| Dec 11, 10:01 AM EST | Mesoscale Discussion | SPC | 119 min |
| Dec 11, 6:58 PM EST | Areal Flood Advisory | RAH | 3 hr |
| Dec 17, 11:56 PM EST | Dense Fog Advisory | RAH | 11 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 | 1 |
| Severe Thunderstorm Watch | 16 |
| Tornado Watch | 7 |
| Mesoscale Discussion | 45 |
| Flooding | |
| Flash Flood Warning | 7 |
| Flash Flood Watch | 3 |
| Areal Flood Advisory | 9 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 3 |
| Heat | |
| Heat Advisory | 7 |
| Cold | |
| Freeze Warning | 3 |
| Freeze Watch | 2 |
| Frost Advisory | 5 |
| Wind and dust | |
| Wind Advisory | 5 |
| Fire | |
| Red Flag Warning | 6 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 6 |
| Dense Smoke Advisory | 1 |
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.