Alert archive / North Carolina / Alexander County
Weather alerts in Alexander County, North Carolina, 2008
124 weather alerts in 2008, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Alexander County and its neighbors
Each county as a circle sized by its count in 2008. Tap one for its archive.
- Alerts
- 124
- Warnings
- 35
- Watches
- 20
- Advisories
- 51
- Busiest month
- January16 alerts
- Busiest day
- August 2, 20086 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 3 tornado warnings covering Alexander County in 2008 had a tornado report inside them.
Alexander County, 2008
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 3 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 18 | 9 | 50% | 4 | 50% | 36 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2008
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Greenville-Spartanburg, SC: tornado warnings | 59 | 18 | 69% | 29 | 79% | 25 min |
| NWS Greenville-Spartanburg, SC: severe thunderstorm warnings | 425 | 241 | 43% | 475 | 76% | 26 min |
| NWS Greenville-Spartanburg, SC: flash flood warnings | 32 | 21 | 34% | 43 | 86% | 82 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, 3:17 PM EST | Red Flag Warning | GSP | 27 hr |
| Jan 2, 10:43 AM EST | Lake Wind Advisory | GSP | 7 hr |
| Jan 7, 8:09 PM EST | Dense Fog Advisory | GSP | 15 hr |
| Jan 10, 10:15 PM EST | Dense Fog Advisory | GSP | 6 hr |
| Jan 16, 4:52 AM EST | Winter Storm Warning | GSP | 31 hr |
| Jan 17, 12:58 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 17, 7:51 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 18, 4:21 AM EST | Winter Storm Watch | GSP | 11 hr |
| Jan 18, 5:21 AM EST | Dense Fog Advisory | GSP | 6 hr |
| Jan 18, 3:40 PM EST | Snow Advisory | GSP | 26 hr |
| Jan 19, 3:02 AM EST | Dense Fog Advisory | GSP | 3 hr |
| Jan 21, 4:37 PM EST | Winter Weather Advisory | GSP | 23 hr |
| Jan 23, 2:50 AM EST | Dense Fog Advisory | GSP | 8 hr |
| Jan 23, 10:48 PM EST | Dense Fog Advisory | GSP | 10 hr |
| Jan 29, 3:40 AM EST | Lake Wind Advisory | GSP | 26 hr |
| Jan 31, 3:39 AM EST | Freezing Rain Advisory | GSP | 31 hr |
| Feb 1, 10:59 AM EST | Lake Wind Advisory | GSP | 7 hr |
| Feb 5, 2:49 PM EST | Lake Wind Advisory | GSP | 27 hr |
| Feb 9, 4:25 AM EST | High Wind Warning | GSP | 45 hr |
| Feb 9, 4:25 AM EST | Wind Advisory | GSP | 45 hr |
| Feb 9, 5:45 AM EST | Fire Weather Watch | GSP | 10 hr |
| Feb 9, 1:34 PM EST | Red Flag Warning | GSP | 31 hr |
| Feb 18, 3:24 PM EST | Lake Wind Advisory | GSP | 27 hr |
| Feb 18, 7:25 PM EST | Red Flag Warning | GSP | 23 hr |
| Feb 19, 3:44 PM EST | Red Flag Warning | GSP | 28 hr |
| Feb 20, 3:49 AM EST | Lake Wind Advisory | GSP | 14 hr |
| Feb 21, 4:52 AM EST | Winter Weather Advisory | GSP | 29 hr |
| Feb 23, 2:28 AM EST | Dense Fog Advisory | GSP | 8 hr |
| Feb 25, 6:36 AM EST | Dense Fog Advisory | GSP | 3 hr |
| Feb 26, 3:31 AM EST | Wind Advisory | GSP | 26 hr |
| Feb 26, 3:05 PM EST | Lake Wind Advisory | GSP | 6 hr |
| Mar 4, 3:24 AM EST | Lake Wind Advisory | GSP | 18 hr |
| Mar 4, 4:31 PM EST | Tornado Watch | SPC | 8 hr |
| Mar 4, 6:47 PM EST | Severe Thunderstorm Warning | GSP | 73 min |
| Mar 7, 3:24 PM EST | Wind Advisory | GSP | 29 hr |
| Mar 7, 9:28 PM EST | Dense Fog Advisory | GSP | 7 hr |
| Mar 18, 4:29 AM EDT | Lake Wind Advisory | GSP | 54 hr |
| Mar 20, 2:12 PM EDT | Frost Advisory | GSP | 19 hr |
| Mar 23, 2:32 PM EDT | Freeze Watch | GSP | 14 hr |
| Mar 24, 4:28 AM EDT | Freeze Warning | GSP | 28 hr |
| Mar 27, 11:11 AM EDT | Red Flag Warning | GSP | 10 hr |
| Apr 1, 1:07 AM EDT | Dense Fog Advisory | GSP | 9 hr |
| Apr 12, 2:56 AM EDT | Lake Wind Advisory | GSP | 24 hr |
| Apr 15, 3:50 AM EDT | Frost Advisory | GSP | 29 hr |
| Apr 15, 3:50 AM EDT | Freeze Warning | GSP | 29 hr |
| Apr 19, 9:00 PM EDT | Mesoscale Discussion | SPC | 60 min |
| May 8, 2:22 PM EDT | Mesoscale Discussion | SPC | 83 min |
| May 8, 7:20 PM EDT | Tornado Watch | SPC | 8 hr |
| May 8, 7:44 PM EDT | Severe Thunderstorm Warning | GSP | 61 min |
| May 8, 8:11 PM EDT | Tornado Warning | GSP | 49 min |
| May 8, 8:59 PM EDT | Tornado Warning | GSP | 32 min |
| May 8, 9:13 PM EDT | Tornado Warning | GSP | 47 min |
| May 9, 8:55 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| May 9, 11:37 PM EDT | Mesoscale Discussion | SPC | 53 min |
| May 11, 4:11 AM EDT | Lake Wind Advisory | GSP | 38 hr |
| May 11, 4:11 AM EDT | Wind Advisory | GSP | 34 hr |
| May 11, 2:07 PM EDT | Tornado Watch | SPC | 6 hr |
| May 20, 2:54 AM EDT | Lake Wind Advisory | GSP | 15 hr |
| May 20, 1:09 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 3, 2:36 PM EDT | Severe Thunderstorm Warning | GSP | 54 min |
| Jun 11, 7:51 PM EDT | Severe Thunderstorm Warning | GSP | 29 min |
| Jun 16, 6:55 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Jun 21, 8:12 PM EDT | Severe Thunderstorm Warning | GSP | 48 min |
| Jun 22, 1:15 PM EDT | Severe Thunderstorm Watch | SPC | 11 hr |
| Jun 22, 4:26 PM EDT | Severe Thunderstorm Warning | GSP | 22 min |
| Jun 22, 4:28 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Jun 22, 10:11 PM EDT | Flash Flood Watch | GSP | 5 hr |
| Jun 28, 4:47 PM EDT | Severe Thunderstorm Warning | GSP | 58 min |
| Jun 29, 1:35 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 6, 1:44 PM EDT | Mesoscale Discussion | SPC | 61 min |
| Jul 7, 1:20 PM EDT | Mesoscale Discussion | SPC | 55 min |
| Jul 7, 7:00 PM EDT | Severe Thunderstorm Warning | GSP | 32 min |
| Jul 9, 12:41 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 10, 2:18 PM EDT | Severe Thunderstorm Warning | GSP | 57 min |
| Jul 10, 2:53 PM EDT | Areal Flood Advisory | GSP | 97 min |
| Jul 22, 3:57 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 22, 4:02 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Jul 22, 8:43 PM EDT | Severe Thunderstorm Warning | GSP | 52 min |
| Jul 23, 3:25 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 27, 1:26 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| 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, 12:02 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 2, 2:30 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Aug 2, 2:33 PM EDT | Severe Thunderstorm Warning | GSP | 42 min |
| Aug 2, 4:57 PM EDT | Severe Thunderstorm Warning | GSP | 36 min |
| Aug 2, 5:28 PM EDT | Severe Thunderstorm Warning | GSP | 62 min |
| Aug 2, 6:26 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Aug 14, 1:54 PM EDT | Severe Thunderstorm Warning | GSP | 66 min |
| Aug 14, 2:27 PM EDT | Severe Thunderstorm Warning | GSP | 63 min |
| Aug 14, 3:25 PM EDT | Severe Thunderstorm Warning | GSP | 65 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 27, 11:12 AM EDT | Flash Flood Watch | GSP | 13 hr |
| Sep 9, 1:41 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Sep 10, 11:02 AM EDT | Flash Flood Watch | GSP | 13 hr |
| Sep 10, 11:36 AM EDT | Areal Flood Advisory | GSP | 114 min |
| Sep 23, 2:21 PM EDT | Lake Wind Advisory | GSP | 24 hr |
| Sep 24, 2:45 PM EDT | Lake Wind Advisory | GSP | 28 hr |
| Sep 28, 2:07 AM EDT | Dense Fog Advisory | GSP | 8 hr |
| Sep 30, 4:56 PM EDT | Severe Thunderstorm Warning | GSP | 64 min |
| Sep 30, 6:52 PM EDT | Severe Thunderstorm Warning | GSP | 53 min |
| Oct 19, 3:32 AM EDT | Frost Advisory | GSP | 29 hr |
| Oct 22, 3:04 AM EDT | Frost Advisory | GSP | 30 hr |
| Oct 27, 2:56 PM EDT | Freeze Watch | GSP | 13 hr |
| Oct 28, 4:03 AM EDT | Freeze Warning | GSP | 29 hr |
| Oct 29, 2:47 PM EDT | Freeze Warning | GSP | 18 hr |
| Nov 13, 10:07 PM EST | Dense Fog Advisory | GSP | 11 hr |
| Nov 15, 2:11 AM EST | Dense Fog Advisory | GSP | 4 hr |
| Nov 21, 3:33 AM EST | Lake Wind Advisory | GSP | 14 hr |
| Nov 21, 3:53 AM EST | Red Flag Warning | GSP | 14 hr |
| Nov 25, 3:10 AM EST | Lake Wind Advisory | GSP | 12 hr |
| Dec 10, 2:39 PM EST | Flood Watch | GSP | 27 hr |
| Dec 11, 10:01 AM EST | Mesoscale Discussion | SPC | 119 min |
| Dec 16, 5:07 AM EST | Dense Fog Advisory | GSP | 5 hr |
| Dec 18, 3:08 AM EST | Dense Fog Advisory | GSP | 7 hr |
| Dec 18, 2:40 PM EST | Dense Fog Advisory | GSP | 18 hr |
| Dec 19, 10:13 AM EST | Lake Wind Advisory | GSP | 9 hr |
| Dec 19, 2:30 PM EST | Wind Advisory | GSP | 7 hr |
| Dec 21, 4:21 AM EST | Lake Wind Advisory | GSP | 26 hr |
| Dec 27, 8:01 PM EST | Dense Fog Advisory | GSP | 11 hr |
| Dec 30, 2:46 PM EST | High Wind Warning | GSP | 27 hr |
| Dec 30, 2:46 PM EST | Wind Advisory | GSP | 27 hr |
| Dec 30, 3:09 PM EST | Red Flag Warning | GSP | 27 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 | 18 |
| Tornado Warning | 3 |
| Severe Thunderstorm Watch | 9 |
| Tornado Watch | 3 |
| Mesoscale Discussion | 18 |
| Flooding | |
| Flash Flood Watch | 3 |
| Flood Watch | 1 |
| Areal Flood Advisory | 2 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Freezing Rain Advisory | 1 |
| Snow Advisory | 1 |
| Winter Weather Advisory | 2 |
| Cold | |
| Freeze Warning | 4 |
| Freeze Watch | 2 |
| Frost Advisory | 4 |
| Wind and dust | |
| High Wind Warning | 2 |
| Lake Wind Advisory | 18 |
| Wind Advisory | 6 |
| Fire | |
| Red Flag Warning | 7 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 17 |
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.