Alert archive / North Carolina / Alexander County
Weather alerts in Alexander County, North Carolina, 2015
120 weather alerts in 2015, 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 2015. Tap one for its archive.
- Alerts
- 120
- Warnings
- 19
- Watches
- 15
- Advisories
- 34
- Busiest month
- June25 alerts
- Busiest day
- June 2, 20155 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, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 11 | 9 | 18% | 3 | 33% | 30 min |
| Flash flood warnings | 1 | 0 | 100% | 0 |
Each office's whole area, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Greenville-Spartanburg, SC: tornado warnings | 4 | 0 | 100% | 2 | 0% | |
| NWS Greenville-Spartanburg, SC: severe thunderstorm warnings | 263 | 207 | 21% | 515 | 85% | 22 min |
| NWS Greenville-Spartanburg, SC: flash flood warnings | 63 | 43 | 32% | 144 | 76% | 131 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 6, 2:57 PM EST | Wind Chill Advisory | GSP | 45 hr |
| Jan 12, 1:40 PM EST | Dense Fog Advisory | GSP | 16 hr |
| Jan 13, 4:17 AM EST | Winter Weather Advisory | GSP | 32 hr |
| Jan 15, 6:35 AM EST | Freezing Fog Advisory | GSP | 2 hr |
| Jan 16, 3:12 AM EST | Freezing Fog Advisory | GSP | 6 hr |
| Feb 1, 4:15 PM EST | Wind Advisory | GSP | 27 hr |
| Feb 13, 9:21 PM EST | Wind Advisory | GSP | 36 hr |
| Feb 14, 4:33 AM EST | Wind Chill Advisory | GSP | 30 hr |
| Feb 14, 5:14 AM EST | Red Flag Warning | GSP | 13 hr |
| Feb 14, 4:51 PM EST | Winter Storm Watch | GSP | 23 hr |
| Feb 15, 3:22 PM EST | Winter Storm Warning | GSP | 37 hr |
| Feb 17, 4:24 PM EST | Winter Weather Advisory | GSP | 39 hr |
| Feb 18, 4:55 AM EST | Wind Chill Advisory | GSP | 53 hr |
| Feb 19, 3:47 PM EST | Winter Storm Watch | GSP | 13 hr |
| Feb 20, 4:54 AM EST | Winter Weather Advisory | GSP | 43 hr |
| Feb 23, 3:24 PM EST | Winter Weather Advisory | GSP | 21 hr |
| Feb 24, 4:39 AM EST | Winter Storm Watch | GSP | 24 hr |
| Feb 24, 3:43 PM EST | Winter Storm Warning | GSP | 38 hr |
| Feb 24, 4:15 PM EST | Winter Weather Advisory | GSP | 18 hr |
| Feb 25, 7:55 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 26, 3:51 AM EST | Winter Weather Advisory | GSP | 8 hr |
| Feb 26, 2:52 PM EST | Winter Weather Advisory | GSP | 21 hr |
| Feb 28, 3:35 PM EST | Winter Weather Advisory | GSP | 21 hr |
| Mar 2, 3:30 AM EST | Dense Fog Advisory | GSP | 7 hr |
| Mar 3, 8:56 PM EST | Dense Fog Advisory | GSP | 13 hr |
| Mar 5, 9:30 PM EST | Winter Weather Advisory | GSP | 15 hr |
| Mar 12, 3:40 AM EDT | Dense Fog Advisory | GSP | 3 hr |
| Mar 27, 4:36 AM EDT | Freeze Warning | GSP | 31 hr |
| Mar 27, 2:30 PM EDT | Freeze Watch | GSP | 12 hr |
| Mar 28, 2:00 AM EDT | Freeze Warning | GSP | 33 hr |
| Apr 3, 4:13 PM EDT | Fire Weather Watch | GSP | 15 hr |
| Apr 4, 3:53 AM EDT | Frost Advisory | GSP | 11 hr |
| Apr 4, 3:53 AM EDT | Freeze Warning | GSP | 29 hr |
| Apr 8, 1:42 AM EDT | Dense Fog Advisory | GSP | 8 hr |
| Apr 9, 5:06 PM EDT | Mesoscale Discussion | SPC | 54 min |
| Apr 9, 5:28 PM EDT | Special Weather Statement | GSP | 32 min |
| Apr 18, 3:28 PM EDT | Flood Watch | GSP | 29 hr |
| Apr 20, 1:03 PM EDT | Mesoscale Discussion | SPC | 57 min |
| Apr 20, 1:23 PM EDT | Tornado Watch | SPC | 7 hr |
| Apr 20, 4:18 PM EDT | Mesoscale Discussion | SPC | 57 min |
| Apr 20, 6:45 PM EDT | Mesoscale Discussion | SPC | 60 min |
| Apr 30, 5:40 PM EDT | Special Weather Statement | GSP | 35 min |
| May 11, 3:24 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| May 28, 8:07 PM EDT | Special Weather Statement | GSP | 53 min |
| May 28, 8:55 PM EDT | Areal Flood Advisory | GSP | 2 hr |
| May 29, 1:25 PM EDT | Special Weather Statement | GSP | 95 min |
| Jun 2, 12:46 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 2, 4:38 PM EDT | Special Weather Statement | GSP | 37 min |
| Jun 2, 5:29 PM EDT | Flash Flood Warning | GSP | 3 hr |
| Jun 2, 5:39 PM EDT | Special Weather Statement | GSP | 36 min |
| Jun 2, 5:49 PM EDT | Severe Thunderstorm Warning | GSP | 41 min |
| Jun 8, 6:24 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Jun 8, 11:07 PM EDT | Special Weather Statement | GSP | 23 min |
| Jun 8, 11:29 PM EDT | Special Weather Statement | GSP | 31 min |
| Jun 17, 3:19 PM EDT | Special Weather Statement | GSP | 26 min |
| Jun 18, 1:32 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 19, 3:27 PM EDT | Severe Thunderstorm Warning | GSP | 48 min |
| Jun 19, 11:38 PM EDT | Special Weather Statement | GSP | 37 min |
| Jun 20, 1:36 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Jun 21, 8:14 PM EDT | Special Weather Statement | GSP | 31 min |
| Jun 24, 8:40 PM EDT | Severe Thunderstorm Warning | GSP | 50 min |
| Jun 26, 3:29 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 26, 5:06 PM EDT | Special Weather Statement | GSP | 24 min |
| Jun 26, 8:45 PM EDT | Mesoscale Discussion | SPC | 60 min |
| Jun 27, 2:06 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 27, 6:23 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 30, 12:55 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 30, 1:37 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 30, 3:09 PM EDT | Special Weather Statement | GSP | 36 min |
| Jun 30, 4:33 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Jun 30, 7:08 PM EDT | Mesoscale Discussion | SPC | 67 min |
| Jul 6, 5:05 PM EDT | Special Weather Statement | RNK | 25 min |
| Jul 6, 5:12 PM EDT | Special Weather Statement | GSP | 48 min |
| Jul 8, 4:16 PM EDT | Special Weather Statement | GSP | 29 min |
| Jul 13, 4:07 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Jul 13, 4:39 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 13, 8:06 PM EDT | Severe Thunderstorm Warning | GSP | 39 min |
| Jul 13, 8:06 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Jul 14, 7:52 AM EDT | Special Weather Statement | GSP | 68 min |
| Jul 18, 2:05 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Jul 21, 4:50 PM EDT | Severe Thunderstorm Warning | GSP | 40 min |
| Jul 23, 3:08 PM EDT | Severe Thunderstorm Warning | GSP | 34 min |
| Jul 28, 8:54 PM EDT | Special Weather Statement | GSP | 66 min |
| Aug 10, 4:39 PM EDT | Special Weather Statement | GSP | 51 min |
| Aug 10, 5:04 PM EDT | Severe Thunderstorm Warning | GSP | 41 min |
| Aug 10, 5:45 PM EDT | Severe Thunderstorm Warning | GSP | 45 min |
| Aug 10, 6:35 PM EDT | Special Weather Statement | GSP | 25 min |
| Aug 11, 1:30 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 14, 5:58 PM EDT | Severe Thunderstorm Warning | GSP | 47 min |
| Aug 14, 7:13 PM EDT | Special Weather Statement | GSP | 17 min |
| Aug 14, 7:47 PM EDT | Special Weather Statement | GSP | 13 min |
| Aug 19, 1:47 PM EDT | Special Weather Statement | GSP | 28 min |
| Aug 19, 2:11 PM EDT | Severe Thunderstorm Warning | GSP | 49 min |
| Sep 4, 7:47 PM EDT | Special Weather Statement | GSP | 28 min |
| Sep 4, 8:01 PM EDT | Severe Thunderstorm Warning | GSP | 44 min |
| Sep 11, 10:15 PM EDT | Special Weather Statement | GSP | 30 min |
| Sep 29, 4:08 AM EDT | Flash Flood Watch | GSP | 22 hr |
| Sep 30, 6:05 PM EDT | Areal Flood Advisory | GSP | 115 min |
| Sep 30, 9:54 PM EDT | Areal Flood Advisory | GSP | 3 hr |
| Oct 1, 4:18 AM EDT | Flash Flood Watch | GSP | 4 days |
| Oct 2, 4:01 AM EDT | High Wind Watch | GSP | 11 hr |
| Oct 2, 3:24 PM EDT | Wind Advisory | GSP | 3 days |
| Oct 3, 2:59 AM EDT | Areal Flood Advisory | GSP | 3 hr |
| Oct 17, 2:22 PM EDT | Frost Advisory | GSP | 19 hr |
| Oct 17, 2:22 PM EDT | Freeze Watch | GSP | 24 hr |
| Oct 18, 11:08 AM EDT | Freeze Warning | GSP | 22 hr |
| Nov 18, 11:58 PM EST | Special Weather Statement | GSP | 62 min |
| Nov 19, 8:29 AM EST | Dense Fog Advisory | GSP | 78 min |
| Nov 30, 3:12 PM EST | Flood Watch | GSP | 47 hr |
| Dec 9, 4:36 AM EST | Dense Fog Advisory | GSP | 5 hr |
| Dec 12, 2:24 AM EST | Dense Fog Advisory | GSP | 9 hr |
| Dec 13, 4:42 AM EST | Dense Fog Advisory | GSP | 6 hr |
| Dec 14, 2:44 PM EST | Special Weather Statement | GSP | 46 min |
| Dec 22, 9:21 AM EST | Dense Fog Advisory | GSP | 4 hr |
| Dec 22, 2:53 PM EST | Flash Flood Watch | GSP | 4 days |
| Dec 22, 5:41 PM EST | Dense Fog Advisory | GSP | 19 hr |
| Dec 24, 8:01 AM EST | Special Weather Statement | GSP | 44 min |
| Dec 24, 8:54 AM EST | Special Weather Statement | GSP | 21 min |
| Dec 24, 9:29 AM EST | Special Weather Statement | GSP | 31 min |
| Dec 25, 2:46 PM EST | Special Weather Statement | GSP | 89 min |
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 | 11 |
| Severe Thunderstorm Watch | 2 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 21 |
| Special Weather Statement | 31 |
| Flooding | |
| Flash Flood Warning | 1 |
| Flash Flood Watch | 3 |
| Flood Watch | 2 |
| Areal Flood Advisory | 4 |
| Winter | |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 3 |
| Winter Weather Advisory | 9 |
| Cold | |
| Freeze Warning | 4 |
| Freeze Watch | 2 |
| Frost Advisory | 2 |
| Wind Chill Advisory | 3 |
| Wind and dust | |
| High Wind Watch | 1 |
| Wind Advisory | 3 |
| Fire | |
| Red Flag Warning | 1 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 11 |
| Freezing Fog Advisory | 2 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20142016
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.