Alert archive / North Carolina / Davidson County
Weather alerts in Davidson County, North Carolina, 2008
144 weather alerts in 2008, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Davidson County and its neighbors
Each county as a circle sized by its count in 2008. Tap one for its archive.
- Alerts
- 144
- Warnings
- 48
- Watches
- 32
- Advisories
- 30
- Busiest month
- May30 alerts
- Busiest day
- May 9, 200810 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
2 of 2 tornado warnings covering Davidson County in 2008 had a tornado report inside them.
Davidson County, 2008
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 2 | 2 | 0% | 0 | ||
| Severe thunderstorm warnings | 33 | 16 | 52% | 6 | 100% | 20 min |
| Flash flood warnings | 3 | 3 | 0% | 2 | 100% | 67 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 10, 10:27 PM EST | Dense Fog Advisory | RAH | 8 hr |
| Jan 15, 3:57 PM EST | Winter Storm Watch | RAH | 11 hr |
| Jan 16, 3:08 AM EST | Winter Storm Warning | RAH | 30 hr |
| Jan 17, 12:58 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 17, 9:34 AM EST | Winter Weather Advisory | RAH | 2 hr |
| Jan 18, 4:26 AM EST | Winter Storm Watch | RAH | 12 hr |
| Jan 18, 4:39 PM EST | Winter Weather Advisory | RAH | 31 hr |
| Jan 21, 3:41 PM EST | Winter Weather Advisory | RAH | 21 hr |
| Jan 23, 4:58 AM EST | Dense Fog Advisory | RAH | 4 hr |
| Jan 24, 2:11 AM EST | Dense Fog Advisory | RAH | 7 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 |
| Feb 21, 4:01 AM EST | Winter Weather Advisory | RAH | 29 hr |
| Feb 23, 5:19 AM EST | Dense Fog Advisory | RAH | 5 hr |
| Mar 4, 4:31 PM EST | Tornado Watch | SPC | 8 hr |
| Mar 4, 8:12 PM EST | Severe Thunderstorm Warning | RAH | 63 min |
| Mar 7, 3:00 PM EST | Wind Advisory | RAH | 27 hr |
| Mar 15, 4:16 PM EDT | Severe Thunderstorm Warning | RAH | 25 min |
| 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 27, 3:41 PM EDT | Severe Thunderstorm Warning | RAH | 49 min |
| May 8, 7:20 PM EDT | Tornado Watch | SPC | 8 hr |
| May 8, 8:17 PM EDT | Severe Thunderstorm Warning | RAH | 43 min |
| May 8, 8:47 PM EDT | Severe Thunderstorm Warning | RAH | 43 min |
| May 8, 9:47 PM EDT | Mesoscale Discussion | SPC | 58 min |
| May 8, 9:49 PM EDT | Severe Thunderstorm Warning | RAH | 56 min |
| May 8, 10:16 PM EDT | Tornado Warning | RAH | 44 min |
| May 8, 10:58 PM EDT | Severe Thunderstorm Warning | RAH | 47 min |
| May 8, 11:09 PM EDT | Tornado Warning | RAH | 51 min |
| May 8, 11:31 PM EDT | Flash Flood Warning | RAH | 3 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, 9:21 PM EDT | Severe Thunderstorm Warning | RAH | 33 min |
| May 9, 10:14 PM EDT | Severe Thunderstorm Warning | RAH | 46 min |
| May 9, 10:41 PM EDT | Mesoscale Discussion | SPC | 64 min |
| May 9, 11:08 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| May 11, 2:07 PM EDT | Tornado Watch | SPC | 6 hr |
| May 11, 7:47 PM EDT | Severe Thunderstorm Watch | SPC | 3 hr |
| May 11, 7:51 PM EDT | Severe Thunderstorm Warning | RAH | 39 min |
| May 11, 8:34 PM EDT | Severe Thunderstorm Warning | RAH | 41 min |
| May 12, 4:06 AM EDT | Wind Advisory | RAH | 11 hr |
| May 20, 1:09 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 20, 3:14 PM EDT | Severe Thunderstorm Warning | RAH | 31 min |
| May 20, 4:15 PM EDT | Severe Thunderstorm Warning | RAH | 25 min |
| May 20, 4:35 PM EDT | Severe Thunderstorm Warning | RAH | 40 min |
| May 20, 4:54 PM EDT | Severe Thunderstorm Warning | RAH | 30 min |
| May 20, 5:13 PM EDT | Severe Thunderstorm Warning | RAH | 47 min |
| May 20, 5:39 PM EDT | Severe Thunderstorm Warning | RAH | 36 min |
| May 31, 4:23 PM EDT | Tornado Watch | SPC | 4 hr |
| May 31, 7:02 PM EDT | Severe Thunderstorm Warning | RAH | 38 min |
| May 31, 7:37 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Jun 3, 3:54 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Jun 16, 6:55 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Jun 22, 1:15 PM EDT | Severe Thunderstorm Watch | SPC | 11 hr |
| Jun 22, 4:28 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Jun 22, 10:22 PM EDT | Flash Flood Watch | RAH | 3 hr |
| Jun 23, 5:29 PM EDT | Severe Thunderstorm Warning | RAH | 41 min |
| Jun 23, 6:11 PM EDT | Severe Thunderstorm Warning | RAH | 64 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, 6:34 PM EDT | Severe Thunderstorm Warning | RAH | 56 min |
| 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, 6:17 PM EDT | Severe Thunderstorm Warning | RAH | 43 min |
| Jul 7, 1:20 PM EDT | Mesoscale Discussion | SPC | 55 min |
| Jul 8, 5:45 PM EDT | Mesoscale Discussion | SPC | 30 min |
| Jul 8, 5:49 PM EDT | Severe Thunderstorm Warning | RAH | 56 min |
| Jul 8, 6:34 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jul 9, 2:13 AM EDT | Severe Thunderstorm Warning | RAH | 24 min |
| Jul 9, 3:34 PM EDT | Severe Thunderstorm Warning | RAH | 41 min |
| Jul 9, 4:37 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 9, 6:06 PM EDT | Severe Thunderstorm Warning | RAH | 39 min |
| Jul 9, 6:41 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Jul 22, 4:03 PM EDT | Areal Flood Advisory | RAH | 101 min |
| Jul 22, 6:03 PM EDT | Severe Thunderstorm Warning | RAH | 57 min |
| Jul 22, 10:28 PM EDT | Areal Flood Advisory | RAH | 3 hr |
| Jul 23, 3:25 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| 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, 11:30 PM EDT | Severe Thunderstorm Warning | RAH | 45 min |
| Jul 31, 1:24 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Jul 31, 1:40 PM EDT | Severe Thunderstorm Warning | RAH | 50 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, 2:30 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Aug 2, 3:11 PM EDT | Severe Thunderstorm Warning | RAH | 64 min |
| Aug 2, 6:26 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Aug 7, 1:43 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Aug 14, 2:37 AM EDT | Dense Fog Advisory | RAH | 6 hr |
| 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 26, 4:10 PM EDT | Mesoscale Discussion | SPC | 65 min |
| Aug 27, 1:56 AM EDT | Tornado Watch | SPC | 8 hr |
| Aug 27, 4:27 AM EDT | Flash Flood Warning | RAH | 4 hr |
| Aug 27, 4:52 AM EDT | Mesoscale Discussion | SPC | 83 min |
| Aug 27, 9:16 AM EDT | Tornado Watch | SPC | 8 hr |
| Aug 27, 11:01 AM EDT | Flash Flood Watch | RAH | 13 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, 4:26 PM EDT | Mesoscale Discussion | SPC | 34 min |
| Aug 27, 5:08 PM EDT | Flash Flood Warning | RAH | 3 hr |
| Aug 30, 3:48 PM EDT | Areal Flood Advisory | RAH | 56 min |
| Sep 5, 3:11 PM EDT | Flash Flood Watch | RAH | 21 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 10, 11:05 AM EDT | Flash Flood Watch | RAH | 13 hr |
| Sep 12, 4:07 AM EDT | Dense Fog Advisory | RAH | 5 hr |
| Sep 24, 3:39 PM EDT | Wind Advisory | RAH | 35 hr |
| Sep 28, 1:49 AM EDT | Dense Fog Advisory | RAH | 8 hr |
| Sep 30, 8:35 PM EDT | Severe Thunderstorm Warning | RAH | 40 min |
| Sep 30, 9:15 PM EDT | Severe Thunderstorm Warning | RAH | 45 min |
| Sep 30, 9:47 PM EDT | Severe Thunderstorm Warning | RAH | 43 min |
| 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 13, 9:31 PM EST | Dense Fog Advisory | RAH | 11 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, 11:00 AM EST | Tornado Watch | SPC | 8 hr |
| Dec 11, 3:57 PM EST | Mesoscale Discussion | SPC | 2 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, 9:28 AM EST | Dense Fog Advisory | RAH | 3 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 | 33 |
| Tornado Warning | 2 |
| Severe Thunderstorm Watch | 14 |
| Tornado Watch | 8 |
| Mesoscale Discussion | 34 |
| Flooding | |
| Flash Flood Warning | 3 |
| Flash Flood Watch | 5 |
| Areal Flood Advisory | 3 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 2 |
| Winter Weather Advisory | 5 |
| 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 | 12 |
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.