Alert archive / North Carolina / Alexander County
Weather alerts in Alexander County, North Carolina, 2013
151 weather alerts in 2013, 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 2013. Tap one for its archive.
- Alerts
- 151
- Warnings
- 34
- Watches
- 22
- Advisories
- 44
- Busiest month
- July42 alerts
- Busiest day
- June 13, 20136 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Alexander County, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 18 | 16 | 11% | 5 | 100% | 21 min |
| Flash flood warnings | 4 | 4 | 0% | 1 | 100% | 58 min |
Each office's whole area, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Greenville-Spartanburg, SC: tornado warnings | 11 | 3 | 73% | 6 | 83% | 14 min |
| NWS Greenville-Spartanburg, SC: severe thunderstorm warnings | 340 | 240 | 29% | 467 | 86% | 24 min |
| NWS Greenville-Spartanburg, SC: flash flood warnings | 91 | 69 | 24% | 204 | 81% | 68 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 11, 2:53 PM EST | Dense Fog Advisory | GSP | 19 hr |
| Jan 12, 8:01 PM EST | Dense Fog Advisory | GSP | 14 hr |
| Jan 14, 4:02 AM EST | Flood Watch | GSP | 4 days |
| Jan 16, 4:06 PM EST | Winter Storm Watch | GSP | 12 hr |
| Jan 16, 4:06 PM EST | Winter Storm Warning | GSP | 34 hr |
| Jan 17, 5:13 PM EST | Areal Flood Advisory | GSP | 107 min |
| Jan 17, 6:54 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 24, 3:41 PM EST | Winter Weather Advisory | GSP | 44 hr |
| Jan 27, 2:17 PM EST | Freezing Rain Advisory | GSP | 13 hr |
| Jan 29, 3:40 PM EST | Wind Advisory | GSP | 69 hr |
| Jan 30, 12:50 PM EST | Mesoscale Discussion | SPC | 85 min |
| Jan 30, 1:19 PM EST | Tornado Watch | SPC | 9 hr |
| Jan 30, 6:21 PM EST | Special Weather Statement | GSP | 39 min |
| Jan 30, 7:05 PM EST | Special Weather Statement | GSP | 55 min |
| Feb 21, 4:47 AM EST | Winter Weather Advisory | GSP | 29 hr |
| Feb 24, 4:13 AM EST | Dense Fog Advisory | GSP | 6 hr |
| Feb 26, 3:40 AM EST | Freezing Rain Advisory | GSP | 6 hr |
| Feb 26, 10:23 PM EST | Dense Fog Advisory | GSP | 6 hr |
| Mar 5, 3:58 AM EST | Wind Advisory | GSP | 39 hr |
| Mar 18, 6:05 PM EDT | Special Weather Statement | GSP | 25 min |
| Mar 19, 6:15 AM EDT | Dense Fog Advisory | GSP | 3 hr |
| Mar 19, 2:58 PM EDT | Freeze Watch | GSP | 13 hr |
| Mar 20, 4:12 AM EDT | Freeze Warning | GSP | 29 hr |
| Mar 20, 3:25 PM EDT | Freeze Watch | GSP | 22 hr |
| Mar 21, 8:56 AM EDT | Freeze Warning | GSP | 24 hr |
| Mar 24, 3:45 PM EDT | Freeze Watch | GSP | 21 hr |
| Mar 24, 3:45 PM EDT | Freeze Warning | GSP | 15 hr |
| Mar 25, 12:51 PM EDT | Freeze Warning | GSP | 20 hr |
| Mar 26, 3:47 AM EDT | Freeze Watch | GSP | 5 hr |
| Mar 26, 8:53 AM EDT | Freeze Warning | GSP | 25 hr |
| Mar 27, 3:56 AM EDT | Freeze Warning | GSP | 30 hr |
| Mar 28, 9:53 AM EDT | Freeze Warning | GSP | 24 hr |
| Apr 2, 2:37 PM EDT | Frost Advisory | GSP | 17 hr |
| Apr 11, 8:24 PM EDT | Tornado Watch | SPC | 8 hr |
| Apr 19, 12:35 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Apr 19, 2:00 PM EDT | Tornado Watch | SPC | 7 hr |
| Apr 19, 2:04 PM EDT | Special Weather Statement | GSP | 41 min |
| Apr 20, 3:28 AM EDT | Frost Advisory | GSP | 30 hr |
| May 3, 2:58 PM EDT | Flood Watch | GSP | 3 days |
| May 6, 1:01 PM EDT | Special Weather Statement | GSP | 44 min |
| May 6, 2:13 PM EDT | Mesoscale Discussion | SPC | 62 min |
| May 6, 2:59 PM EDT | Special Weather Statement | GSP | 31 min |
| May 6, 4:46 PM EDT | Severe Thunderstorm Warning | GSP | 59 min |
| May 6, 4:56 PM EDT | Areal Flood Advisory | GSP | 6 hr |
| May 7, 3:48 PM EDT | Special Weather Statement | GSP | 57 min |
| May 8, 5:58 AM EDT | Dense Fog Advisory | GSP | 3 hr |
| May 8, 8:05 AM EDT | Areal Flood Advisory | GSP | 12 hr |
| May 8, 8:12 PM EDT | Areal Flood Advisory | GSP | 12 hr |
| May 11, 6:14 PM EDT | Severe Thunderstorm Warning | GSP | 61 min |
| May 15, 7:10 PM EDT | Special Weather Statement | GSP | 35 min |
| May 19, 5:43 PM EDT | Special Weather Statement | GSP | 47 min |
| May 23, 2:31 PM EDT | Special Weather Statement | GSP | 44 min |
| May 23, 3:33 PM EDT | Special Weather Statement | GSP | 27 min |
| May 23, 8:07 PM EDT | Special Weather Statement | GSP | 23 min |
| May 23, 8:28 PM EDT | Severe Thunderstorm Warning | GSP | 62 min |
| Jun 2, 2:21 PM EDT | Special Weather Statement | GSP | 54 min |
| Jun 2, 4:49 PM EDT | Areal Flood Advisory | GSP | 2 hr |
| Jun 5, 10:07 PM EDT | Special Weather Statement | GSP | 53 min |
| Jun 6, 4:59 AM EDT | Flash Flood Watch | GSP | 37 hr |
| Jun 9, 3:44 PM EDT | Special Weather Statement | GSP | 46 min |
| Jun 9, 9:09 PM EDT | Flash Flood Watch | GSP | 19 hr |
| Jun 10, 1:18 PM EDT | Tornado Watch | SPC | 9 hr |
| Jun 10, 2:12 PM EDT | Special Weather Statement | GSP | 48 min |
| Jun 13, 11:38 AM EDT | Mesoscale Discussion | SPC | 67 min |
| Jun 13, 1:40 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 13, 3:11 PM EDT | Special Weather Statement | GSP | 34 min |
| Jun 13, 3:22 PM EDT | Severe Thunderstorm Warning | GSP | 53 min |
| Jun 13, 3:36 PM EDT | Severe Thunderstorm Warning | GSP | 54 min |
| Jun 13, 4:22 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Jun 24, 9:40 PM EDT | Special Weather Statement | GSP | 50 min |
| Jun 25, 3:20 PM EDT | Special Weather Statement | GSP | 55 min |
| Jun 26, 2:30 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 26, 2:38 PM EDT | Severe Thunderstorm Warning | GSP | 67 min |
| Jun 26, 3:57 PM EDT | Severe Thunderstorm Warning | GSP | 48 min |
| Jun 26, 4:31 PM EDT | Severe Thunderstorm Warning | GSP | 59 min |
| Jun 26, 4:43 PM EDT | Areal Flood Advisory | GSP | 107 min |
| Jun 28, 4:42 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Jun 29, 9:47 PM EDT | Special Weather Statement | GSP | 58 min |
| Jun 29, 10:03 PM EDT | Severe Thunderstorm Warning | GSP | 57 min |
| Jun 30, 3:24 PM EDT | Flash Flood Watch | GSP | 7 days |
| Jul 1, 9:41 PM EDT | Special Weather Statement | GSP | 49 min |
| Jul 2, 4:46 PM EDT | Areal Flood Advisory | GSP | 104 min |
| Jul 3, 4:57 AM EDT | Special Weather Statement | GSP | 33 min |
| Jul 4, 12:19 AM EDT | Areal Flood Advisory | GSP | 2 hr |
| Jul 4, 6:20 AM EDT | Special Weather Statement | GSP | 25 min |
| Jul 4, 8:36 AM EDT | Areal Flood Advisory | GSP | 8 hr |
| Jul 4, 1:57 PM EDT | Areal Flood Advisory | GSP | 2 hr |
| Jul 4, 4:29 PM EDT | Areal Flood Advisory | GSP | 24 hr |
| Jul 4, 5:47 PM EDT | Special Weather Statement | GSP | 43 min |
| Jul 4, 8:46 PM EDT | Severe Thunderstorm Warning | GSP | 44 min |
| Jul 4, 9:21 PM EDT | Special Weather Statement | GSP | 54 min |
| Jul 4, 9:59 PM EDT | Areal Flood Advisory | GSP | 3 hr |
| Jul 5, 9:16 AM EDT | Areal Flood Warning | GSP | 12 hr |
| Jul 5, 4:04 PM EDT | Special Weather Statement | GSP | 26 min |
| Jul 5, 8:57 PM EDT | Areal Flood Warning | GSP | 12 hr |
| Jul 6, 7:45 AM EDT | Areal Flood Warning | GSP | 12 hr |
| Jul 6, 7:26 PM EDT | Areal Flood Advisory | GSP | 4 days |
| Jul 7, 7:28 AM EDT | Areal Flood Advisory | GSP | 45 hr |
| Jul 7, 10:42 PM EDT | Areal Flood Advisory | GSP | 78 min |
| Jul 9, 10:21 PM EDT | Severe Thunderstorm Warning | GSP | 54 min |
| Jul 9, 10:35 PM EDT | Areal Flood Advisory | GSP | 115 min |
| Jul 9, 11:12 PM EDT | Flash Flood Warning | GSP | 3 hr |
| Jul 9, 11:17 PM EDT | Special Weather Statement | GSP | 43 min |
| Jul 10, 8:32 AM EDT | Areal Flood Advisory | GSP | 12 hr |
| Jul 10, 8:37 AM EDT | Areal Flood Advisory | GSP | 22 hr |
| Jul 11, 4:16 AM EDT | Flash Flood Watch | GSP | 24 hr |
| Jul 11, 7:14 PM EDT | Special Weather Statement | GSP | 61 min |
| Jul 11, 7:42 PM EDT | Flash Flood Warning | GSP | 3 hr |
| Jul 13, 3:54 AM EDT | Flash Flood Watch | GSP | 24 hr |
| Jul 17, 2:22 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Jul 17, 2:55 PM EDT | Severe Thunderstorm Warning | GSP | 65 min |
| Jul 17, 2:57 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 20, 12:57 PM EDT | Severe Thunderstorm Warning | GSP | 63 min |
| Jul 21, 3:04 PM EDT | Special Weather Statement | GSP | 41 min |
| Jul 24, 1:33 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jul 25, 5:26 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 25, 6:41 PM EDT | Special Weather Statement | GSP | 49 min |
| Jul 27, 9:52 AM EDT | Flash Flood Warning | GSP | 5 hr |
| Jul 27, 11:02 AM EDT | Flash Flood Watch | GSP | 19 hr |
| Jul 27, 11:26 AM EDT | Areal Flood Advisory | GSP | 12 hr |
| Jul 27, 12:08 PM EDT | Areal Flood Warning | GSP | 12 hr |
| Jul 27, 11:49 PM EDT | Areal Flood Advisory | GSP | 12 hr |
| Aug 10, 3:10 PM EDT | Severe Thunderstorm Warning | GSP | 65 min |
| Aug 11, 4:17 PM EDT | Special Weather Statement | GSP | 43 min |
| Aug 12, 3:49 PM EDT | Special Weather Statement | GSP | 41 min |
| Aug 12, 4:23 PM EDT | Severe Thunderstorm Warning | GSP | 67 min |
| Aug 12, 4:57 PM EDT | Areal Flood Advisory | GSP | 2 hr |
| Aug 20, 2:50 AM EDT | Dense Fog Advisory | GSP | 6 hr |
| Aug 21, 1:26 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 22, 1:58 AM EDT | Dense Fog Advisory | GSP | 7 hr |
| Aug 23, 1:14 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 29, 6:58 PM EDT | Special Weather Statement | GSP | 47 min |
| Aug 31, 3:37 PM EDT | Special Weather Statement | GSP | 38 min |
| Sep 1, 3:01 PM EDT | Special Weather Statement | GSP | 44 min |
| Sep 1, 3:20 PM EDT | Severe Thunderstorm Warning | GSP | 55 min |
| Sep 1, 4:07 PM EDT | Severe Thunderstorm Warning | GSP | 53 min |
| Sep 1, 4:18 PM EDT | Flash Flood Warning | GSP | 3 hr |
| Sep 1, 4:48 PM EDT | Severe Thunderstorm Warning | GSP | 57 min |
| Sep 2, 8:55 PM EDT | Special Weather Statement | GSP | 50 min |
| Sep 12, 3:29 PM EDT | Special Weather Statement | GSP | 61 min |
| Oct 23, 3:26 AM EDT | Frost Advisory | GSP | 30 hr |
| Nov 17, 5:42 AM EST | Dense Fog Advisory | GSP | 5 hr |
| Nov 23, 6:16 AM EST | Dense Fog Advisory | GSP | 104 min |
| Nov 25, 4:27 AM EST | Freezing Rain Advisory | GSP | 29 hr |
| Nov 26, 3:39 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Nov 26, 10:01 AM EST | Flood Watch | GSP | 15 hr |
| Dec 4, 6:17 AM EST | Dense Fog Advisory | GSP | 4 hr |
| Dec 6, 3:45 AM EST | Winter Storm Watch | GSP | 34 hr |
| Dec 7, 3:40 AM EST | Freezing Rain Advisory | GSP | 40 hr |
| Dec 15, 5:50 AM EST | Dense Fog Advisory | GSP | 3 hr |
| Dec 22, 3:29 AM EST | Flood Watch | GSP | 33 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 |
| Severe Thunderstorm Watch | 2 |
| Tornado Watch | 4 |
| Mesoscale Discussion | 14 |
| Special Weather Statement | 37 |
| Flooding | |
| Areal Flood Warning | 4 |
| Flash Flood Warning | 4 |
| Flash Flood Watch | 6 |
| Flood Watch | 4 |
| Areal Flood Advisory | 21 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 2 |
| Freezing Rain Advisory | 4 |
| Winter Weather Advisory | 2 |
| Cold | |
| Freeze Warning | 7 |
| Freeze Watch | 4 |
| Frost Advisory | 3 |
| Wind and dust | |
| Wind Advisory | 2 |
| 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 archive20122014
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.