Alert archive / North Carolina / Henderson County
Weather alerts in Henderson County, North Carolina, 2015
154 weather alerts in 2015, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Henderson County and its neighbors
Each county as a circle sized by its count in 2015. Tap one for its archive.
- Alerts
- 154
- Warnings
- 44
- Watches
- 20
- Advisories
- 39
- Busiest month
- June33 alerts
- Busiest day
- December 24, 20156 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Henderson County, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 19 | 13 | 32% | 11 | 100% | 20 min |
| Flash flood warnings | 2 | 1 | 50% | 1 | 100% | 47 min |
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 13, 4:17 AM EST | Freezing Rain Advisory | GSP | 29 hr |
| Jan 15, 6:35 AM EST | Freezing Fog Advisory | GSP | 2 hr |
| Feb 1, 4:15 PM EST | Wind Advisory | GSP | 27 hr |
| Feb 11, 2:57 PM EST | Wind Advisory | GSP | 33 hr |
| Feb 13, 3:38 PM EST | High Wind Watch | GSP | 5 hr |
| Feb 13, 9:05 PM EST | High Wind Warning | GSP | 36 hr |
| Feb 14, 4:33 AM EST | Wind Chill Advisory | GSP | 30 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 16, 12:05 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 17, 4:24 PM EST | Wind Chill Watch | GSP | 13 hr |
| Feb 17, 4:24 PM EST | Winter Weather Advisory | GSP | 39 hr |
| Feb 18, 4:55 AM EST | Wind Chill Warning | GSP | 53 hr |
| Feb 18, 4:55 AM EST | Wind Chill Advisory | GSP | 53 hr |
| Feb 18, 11:01 AM EST | Wind Advisory | GSP | 8 hr |
| Feb 19, 1:06 PM EST | Wind Chill Warning | GSP | 21 hr |
| Feb 20, 4:54 AM EST | Winter Weather Advisory | GSP | 43 hr |
| Feb 22, 3:01 PM EST | Winter Weather Advisory | GSP | 19 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, 4:10 PM EST | Mesoscale Discussion | SPC | 4 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 | Freezing Rain Advisory | GSP | 19 hr |
| Mar 5, 9:30 PM EST | Winter Weather Advisory | GSP | 15 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 |
| Mar 30, 2:57 PM EDT | Frost Advisory | GSP | 18 hr |
| Apr 3, 4:13 PM EDT | Fire Weather Watch | GSP | 15 hr |
| Apr 3, 8:42 PM EDT | Wind Advisory | GSP | 17 hr |
| Apr 4, 3:53 AM EDT | Freeze Warning | GSP | 29 hr |
| Apr 7, 4:03 PM EDT | Special Weather Statement | GSP | 27 min |
| Apr 7, 5:09 PM EDT | Special Weather Statement | GSP | 36 min |
| Apr 7, 5:22 PM EDT | Severe Thunderstorm Warning | GSP | 38 min |
| Apr 8, 1:42 AM EDT | Dense Fog Advisory | GSP | 8 hr |
| Apr 9, 5:06 PM EDT | Mesoscale Discussion | SPC | 54 min |
| Apr 13, 3:10 PM EDT | Flash Flood Watch | GSP | 19 hr |
| Apr 18, 3:28 PM EDT | Flood Watch | GSP | 29 hr |
| Apr 19, 8:33 PM EDT | River Flood Warning | GSP | 61 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 22, 8:46 PM EDT | Severe Thunderstorm Warning | GSP | 44 min |
| Apr 23, 3:47 AM EDT | Freeze Warning | GSP | 29 hr |
| Apr 30, 4:39 PM EDT | Special Weather Statement | GSP | 36 min |
| May 10, 4:43 PM EDT | Special Weather Statement | GSP | 32 min |
| May 11, 2:31 PM EDT | Special Weather Statement | GSP | 44 min |
| May 11, 2:58 PM EDT | Severe Thunderstorm Warning | GSP | 47 min |
| May 11, 3:24 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| May 18, 1:27 PM EDT | Special Weather Statement | GSP | 33 min |
| Jun 2, 12:46 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 2, 1:58 PM EDT | Special Weather Statement | GSP | 32 min |
| Jun 2, 2:05 PM EDT | Severe Thunderstorm Warning | GSP | 40 min |
| Jun 2, 2:50 PM EDT | Special Weather Statement | GSP | 40 min |
| Jun 8, 5:01 PM EDT | Special Weather Statement | GSP | 29 min |
| Jun 8, 5:16 PM EDT | Special Weather Statement | GSP | 29 min |
| Jun 8, 6:24 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Jun 8, 7:22 PM EDT | Flash Flood Warning | GSP | 3 hr |
| Jun 8, 10:05 PM EDT | Severe Thunderstorm Warning | GSP | 40 min |
| Jun 16, 5:21 PM EDT | Special Weather Statement | GSP | 24 min |
| Jun 16, 5:55 PM EDT | Special Weather Statement | GSP | 35 min |
| Jun 17, 3:37 PM EDT | Severe Thunderstorm Warning | GSP | 53 min |
| Jun 17, 6:26 PM EDT | Special Weather Statement | GSP | 34 min |
| Jun 18, 1:32 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 18, 2:22 PM EDT | Severe Thunderstorm Warning | GSP | 38 min |
| Jun 18, 4:37 PM EDT | Severe Thunderstorm Warning | GSP | 38 min |
| Jun 19, 6:05 PM EDT | Severe Thunderstorm Warning | GSP | 40 min |
| Jun 20, 1:36 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Jun 21, 7:01 PM EDT | Severe Thunderstorm Warning | GSP | 44 min |
| Jun 21, 7:33 PM EDT | Severe Thunderstorm Warning | GSP | 42 min |
| Jun 22, 3:59 PM EDT | Severe Thunderstorm Warning | GSP | 46 min |
| Jun 22, 4:05 PM EDT | Special Weather Statement | GSP | 25 min |
| Jun 22, 4:59 PM EDT | Special Weather Statement | GSP | 31 min |
| Jun 24, 4:04 PM EDT | Special Weather Statement | GSP | 41 min |
| Jun 24, 4:38 PM EDT | Severe Thunderstorm Warning | GSP | 67 min |
| Jun 26, 3:55 PM EDT | Special Weather Statement | GSP | 65 min |
| Jun 26, 4:37 PM EDT | Severe Thunderstorm Warning | GSP | 38 min |
| Jun 26, 4:58 PM EDT | Areal Flood Advisory | GSP | 3 hr |
| Jun 26, 5:48 PM EDT | Mesoscale Discussion | SPC | 87 min |
| 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, 4:33 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Jun 30, 7:08 PM EDT | Mesoscale Discussion | SPC | 67 min |
| Jul 8, 4:46 PM EDT | Severe Thunderstorm Warning | GSP | 44 min |
| Jul 13, 6:55 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jul 13, 8:16 PM EDT | Severe Thunderstorm Warning | GSP | 21 min |
| Jul 14, 7:27 AM EDT | Special Weather Statement | GSP | 63 min |
| Jul 14, 7:47 AM EDT | Severe Thunderstorm Warning | GSP | 58 min |
| Jul 18, 2:05 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Jul 18, 2:13 PM EDT | Special Weather Statement | GSP | 32 min |
| Jul 18, 2:48 PM EDT | Special Weather Statement | GSP | 27 min |
| Jul 20, 8:22 PM EDT | Special Weather Statement | GSP | 23 min |
| Jul 20, 8:36 PM EDT | Severe Thunderstorm Warning | GSP | 54 min |
| Jul 21, 2:14 PM EDT | Special Weather Statement | GSP | 46 min |
| Aug 4, 3:29 PM EDT | Severe Thunderstorm Warning | GSP | 46 min |
| Aug 4, 4:15 PM EDT | Special Weather Statement | GSP | 60 min |
| Aug 15, 4:29 PM EDT | Special Weather Statement | GSP | 16 min |
| Sep 24, 10:10 PM EDT | Special Weather Statement | GSP | 110 min |
| Sep 25, 8:09 PM EDT | Special Weather Statement | GSP | 111 min |
| Sep 26, 4:37 AM EDT | Areal Flood Advisory | GSP | 113 min |
| Sep 29, 4:08 AM EDT | Flash Flood Watch | GSP | 22 hr |
| Sep 29, 10:17 AM EDT | Special Weather Statement | GSP | 58 min |
| Sep 30, 5:32 PM EDT | Special Weather Statement | GSP | 28 min |
| Sep 30, 6:43 PM EDT | Special Weather Statement | GSP | 47 min |
| Oct 1, 4:18 AM EDT | Flash Flood Watch | GSP | 4 days |
| Oct 1, 11:34 PM EDT | River Flood Warning | GSP | 4 days |
| Oct 1, 11:34 PM EDT | River Flood Warning | GSP | 3 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, 10:56 AM EDT | Flash Flood Warning | GSP | 6 hr |
| Oct 3, 4:59 PM EDT | Areal Flood Warning | GSP | 3 hr |
| Oct 3, 8:00 PM EDT | Areal Flood Advisory | GSP | 4 hr |
| Oct 4, 12:49 AM EDT | Areal Flood Advisory | GSP | 3 hr |
| Oct 16, 4:00 AM EDT | Freeze Watch | GSP | 24 hr |
| Oct 17, 3:33 AM EDT | Freeze Warning | GSP | 29 hr |
| Oct 18, 11:08 AM EDT | Freeze Warning | GSP | 22 hr |
| Oct 28, 4:33 AM EDT | Areal Flood Advisory | GSP | 4 hr |
| Oct 28, 9:08 AM EDT | Areal Flood Warning | GSP | 3 hr |
| Oct 28, 9:14 AM EDT | River Flood Advisory | GSP | 12 hr |
| Oct 29, 8:45 AM EDT | River Flood Advisory | GSP | 12 hr |
| Nov 1, 2:51 PM EST | Flood Watch | GSP | 33 hr |
| Nov 2, 10:13 AM EST | River Flood Advisory | GSP | 12 hr |
| Nov 9, 10:05 AM EST | Areal Flood Advisory | GSP | 5 hr |
| Nov 9, 10:47 AM EST | River Flood Advisory | GSP | 12 hr |
| Nov 9, 10:53 PM EST | River Flood Advisory | GSP | 32 hr |
| Nov 17, 2:52 PM EST | Flash Flood Watch | GSP | 43 hr |
| Nov 18, 4:23 PM EST | River Flood Warning | GSP | 61 hr |
| Nov 18, 9:37 PM EST | Areal Flood Warning | GSP | 6 hr |
| Nov 19, 3:32 AM EST | Areal Flood Advisory | GSP | 4 hr |
| Nov 30, 3:12 PM EST | Flood Watch | GSP | 47 hr |
| Dec 2, 4:54 AM EST | Areal Flood Advisory | GSP | 6 hr |
| Dec 2, 10:49 AM EST | Areal Flood Advisory | GSP | 3 hr |
| Dec 2, 11:47 AM EST | River Flood Advisory | GSP | 12 hr |
| Dec 2, 5:03 PM EST | River Flood Warning | GSP | 32 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 23, 10:05 PM EST | River Flood Advisory | GSP | 12 hr |
| Dec 24, 5:16 AM EST | Special Weather Statement | GSP | 29 min |
| Dec 24, 6:20 AM EST | Special Weather Statement | GSP | 25 min |
| Dec 24, 8:36 AM EST | Special Weather Statement | GSP | 39 min |
| Dec 24, 10:17 AM EST | River Flood Warning | GSP | 4 days |
| Dec 24, 2:16 PM EST | Areal Flood Warning | GSP | 119 min |
| Dec 25, 12:41 PM EST | Special Weather Statement | GSP | 2 hr |
| Dec 25, 2:46 PM EST | Special Weather Statement | GSP | 89 min |
| Dec 28, 3:54 AM EST | Wind Advisory | GSP | 24 hr |
| Dec 28, 4:10 AM EST | Flood Watch | GSP | 71 hr |
| Dec 28, 12:27 PM EST | River Flood Warning | GSP | 5 days |
| Dec 29, 12:18 AM EST | Special Weather Statement | GSP | 57 min |
| Dec 29, 3:38 AM EST | River Flood Warning | GSP | 21 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
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.