Alert archive / North Carolina / Union County
Weather alerts in Union County, North Carolina, 2015
165 weather alerts in 2015, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Union County and its neighbors
Each county as a circle sized by its count in 2015. Tap one for its archive.
- Alerts
- 165
- Warnings
- 44
- Watches
- 13
- Advisories
- 45
- Busiest month
- June26 alerts
- Busiest day
- April 20, 20157 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 2 tornado reports fell inside a warning.
Union County, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 2 | 0% | |||
| Severe thunderstorm warnings | 14 | 9 | 36% | 3 | 100% | 18 min |
| Flash flood warnings | 8 | 7 | 13% | 18 | 100% | 90 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 3, 9:26 PM EST | Dense Fog Advisory | GSP | 7 hr |
| Jan 4, 9:34 AM EST | Special Weather Statement | GSP | 41 min |
| Jan 4, 10:15 AM EST | Special Weather Statement | GSP | 45 min |
| 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 | Freezing Rain Advisory | GSP | 29 hr |
| Jan 16, 3:12 AM EST | Dense 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, 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 15, 3:22 PM EST | Winter Weather Advisory | GSP | 28 hr |
| Feb 16, 4:50 PM EST | Mesoscale Discussion | SPC | 6 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 18, 11:01 AM EST | Wind Advisory | GSP | 8 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 | Freezing Rain Advisory | GSP | 19 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, 12:46 PM EST | Special Weather Statement | GSP | 29 min |
| Mar 5, 9:30 PM EST | Winter Weather Advisory | GSP | 15 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, 2:53 PM EDT | Frost Advisory | GSP | 18 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 14, 4:29 PM EDT | Mesoscale Discussion | SPC | 46 min |
| Apr 19, 1:04 PM EDT | Tornado Watch | SPC | 7 hr |
| Apr 19, 4:11 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 19, 10:15 PM EDT | Areal Flood Warning | GSP | 6 hr |
| Apr 20, 4:11 AM EDT | Areal Flood Warning | GSP | 6 hr |
| Apr 20, 10:06 AM EDT | Areal Flood Warning | GSP | 3 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 |
| May 11, 3:24 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| May 12, 1:55 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| May 18, 8:21 PM EDT | Special Weather Statement | GSP | 39 min |
| May 18, 8:58 PM EDT | Special Weather Statement | GSP | 62 min |
| May 27, 6:34 PM EDT | Special Weather Statement | GSP | 41 min |
| Jun 1, 4:27 PM EDT | Special Weather Statement | GSP | 48 min |
| Jun 2, 2:16 PM EDT | Special Weather Statement | CAE | 29 min |
| Jun 2, 2:36 PM EDT | Severe Thunderstorm Warning | GSP | 39 min |
| Jun 2, 3:15 PM EDT | Special Weather Statement | GSP | 30 min |
| Jun 9, 12:27 AM EDT | Special Weather Statement | GSP | 48 min |
| Jun 9, 12:35 AM EDT | Special Weather Statement | CAE | 55 min |
| Jun 18, 1:32 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 18, 7:01 PM EDT | Special Weather Statement | GSP | 29 min |
| Jun 19, 4:11 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 19, 5:29 PM EDT | Severe Thunderstorm Warning | GSP | 46 min |
| Jun 19, 6:47 PM EDT | Special Weather Statement | GSP | 43 min |
| Jun 19, 11:03 PM EDT | Special Weather Statement | GSP | 27 min |
| Jun 19, 11:27 PM EDT | Special Weather Statement | GSP | 33 min |
| Jun 20, 1:36 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Jun 20, 4:52 PM EDT | Severe Thunderstorm Warning | GSP | 38 min |
| Jun 20, 4:57 PM EDT | Special Weather Statement | CAE | 33 min |
| Jun 24, 5:56 PM EDT | Severe Thunderstorm Warning | GSP | 49 min |
| Jun 24, 6:57 PM EDT | Special Weather Statement | GSP | 63 min |
| Jun 24, 8:05 PM EDT | Special Weather Statement | GSP | 40 min |
| Jun 24, 8:09 PM EDT | Severe Thunderstorm Warning | GSP | 33 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, 6:04 PM EDT | Special Weather Statement | GSP | 71 min |
| Jun 27, 6:23 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 30, 1:37 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 30, 5:13 PM EDT | Special Weather Statement | GSP | 32 min |
| Jul 13, 6:52 PM EDT | Special Weather Statement | GSP | 23 min |
| Jul 13, 6:55 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jul 13, 7:20 PM EDT | Special Weather Statement | GSP | 25 min |
| Jul 13, 8:06 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Jul 13, 9:24 PM EDT | Severe Thunderstorm Warning | GSP | 61 min |
| Jul 13, 9:50 PM EDT | Areal Flood Advisory | GSP | 3 hr |
| Jul 13, 10:34 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Jul 18, 2:05 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Jul 19, 6:00 PM EDT | Special Weather Statement | GSP | 30 min |
| Jul 23, 4:34 PM EDT | Severe Thunderstorm Warning | GSP | 41 min |
| Jul 23, 5:16 PM EDT | Special Weather Statement | GSP | 29 min |
| Jul 23, 6:04 PM EDT | Severe Thunderstorm Warning | GSP | 41 min |
| Jul 23, 6:41 PM EDT | Flash Flood Warning | GSP | 3 hr |
| Jul 23, 6:46 PM EDT | Special Weather Statement | GSP | 29 min |
| Jul 23, 7:18 PM EDT | Special Weather Statement | GSP | 27 min |
| Jul 27, 11:16 PM EDT | Areal Flood Advisory | GSP | 119 min |
| Jul 27, 11:56 PM EDT | Flash Flood Warning | GSP | 3 hr |
| Aug 6, 1:40 PM EDT | Special Weather Statement | GSP | 35 min |
| Aug 6, 2:25 PM EDT | Special Weather Statement | GSP | 50 min |
| Aug 6, 2:29 PM EDT | Severe Thunderstorm Warning | GSP | 41 min |
| Aug 6, 2:40 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 11, 1:30 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 11, 3:46 PM EDT | Special Weather Statement | GSP | 44 min |
| Aug 11, 4:29 PM EDT | Flash Flood Warning | GSP | 3 hr |
| Aug 11, 4:38 PM EDT | Special Weather Statement | GSP | 67 min |
| Aug 11, 9:06 PM EDT | Severe Thunderstorm Warning | GSP | 39 min |
| Aug 11, 9:45 PM EDT | Severe Thunderstorm Warning | GSP | 45 min |
| Aug 11, 10:25 PM EDT | Areal Flood Advisory | GSP | 2 hr |
| Aug 11, 10:40 PM EDT | Special Weather Statement | GSP | 35 min |
| Aug 18, 7:53 PM EDT | Special Weather Statement | GSP | 37 min |
| Aug 18, 8:18 PM EDT | Areal Flood Advisory | GSP | 117 min |
| Aug 18, 8:41 PM EDT | Flash Flood Warning | GSP | 3 hr |
| Aug 18, 9:17 PM EDT | Flash Flood Warning | GSP | 2 hr |
| Aug 18, 11:38 PM EDT | Areal Flood Warning | GSP | 3 hr |
| Aug 19, 5:54 PM EDT | Areal Flood Advisory | GSP | 2 hr |
| Aug 19, 6:08 PM EDT | Flash Flood Warning | GSP | 3 hr |
| Aug 19, 9:39 PM EDT | Areal Flood Warning | GSP | 6 hr |
| Aug 20, 3:30 AM EDT | Areal Flood Advisory | GSP | 3 hr |
| Aug 20, 2:57 PM EDT | Special Weather Statement | GSP | 33 min |
| Sep 4, 3:06 PM EDT | Special Weather Statement | GSP | 24 min |
| Sep 4, 7:29 PM EDT | Severe Thunderstorm Warning | GSP | 46 min |
| Sep 10, 5:42 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 10, 6:56 PM EDT | Severe Thunderstorm Warning | GSP | 49 min |
| Sep 24, 3:28 PM EDT | Special Weather Statement | GSP | 107 min |
| Sep 30, 10:13 PM EDT | Areal Flood Advisory | GSP | 2 hr |
| Oct 1, 4:18 AM EDT | Flash Flood Watch | GSP | 4 days |
| Oct 2, 3:24 PM EDT | Wind Advisory | GSP | 3 days |
| Oct 3, 1:22 AM EDT | Flash Flood Warning | GSP | 6 hr |
| Oct 3, 7:57 AM EDT | Areal Flood Advisory | GSP | 3 hr |
| Oct 3, 8:46 AM EDT | Areal Flood Warning | GSP | 3 hr |
| Oct 3, 12:22 PM EDT | Areal Flood Advisory | GSP | 3 hr |
| Oct 18, 11:08 AM EDT | Frost Advisory | GSP | 22 hr |
| Oct 18, 11:08 AM EDT | Freeze Warning | GSP | 22 hr |
| Oct 19, 10:36 AM EDT | Frost Advisory | GSP | 22 hr |
| Nov 1, 2:51 PM EST | Flood Watch | GSP | 33 hr |
| Nov 2, 10:51 AM EST | Areal Flood Warning | GSP | 3 hr |
| Nov 2, 1:14 PM EST | Areal Flood Warning | GSP | 6 hr |
| Nov 7, 5:03 AM EST | Special Weather Statement | GSP | 57 min |
| Nov 7, 6:15 AM EST | Special Weather Statement | GSP | 75 min |
| Nov 9, 8:00 PM EST | Areal Flood Warning | GSP | 9 hr |
| Nov 10, 5:05 AM EST | Areal Flood Advisory | GSP | 6 hr |
| Nov 13, 3:16 AM EST | Frost Advisory | GSP | 29 hr |
| Nov 13, 2:54 PM EST | Freeze Watch | GSP | 22 hr |
| Nov 14, 12:38 PM EST | Freeze Warning | GSP | 20 hr |
| Nov 19, 12:16 AM EST | Special Weather Statement | GSP | 59 min |
| Nov 19, 8:03 AM EST | Areal Flood Advisory | GSP | 3 hr |
| Dec 1, 8:31 AM EST | Dense Fog Advisory | GSP | 10 hr |
| Dec 1, 9:41 PM EST | Dense Fog Advisory | GSP | 12 hr |
| Dec 9, 4:36 AM EST | Dense Fog Advisory | GSP | 5 hr |
| Dec 13, 4:42 AM EST | Dense Fog Advisory | GSP | 6 hr |
| Dec 14, 3:27 PM EST | Special Weather Statement | GSP | 48 min |
| Dec 22, 6:43 AM EST | Areal Flood Advisory | GSP | 3 hr |
| Dec 22, 7:51 AM EST | Areal Flood Warning | GSP | 3 hr |
| Dec 22, 9:21 AM EST | Dense Fog Advisory | GSP | 4 hr |
| Dec 22, 10:47 AM EST | Areal Flood Warning | GSP | 3 hr |
| Dec 22, 1:47 PM EST | Areal Flood Warning | GSP | 3 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, 2:21 PM EST | Mesoscale Discussion | SPC | 84 min |
| Dec 23, 2:58 PM EST | Special Weather Statement | GSP | 32 min |
| Dec 23, 3:20 PM EST | Areal Flood Advisory | GSP | 115 min |
| Dec 28, 1:15 AM EST | Dense Fog Advisory | GSP | 8 hr |
| Dec 28, 4:10 AM EST | Flood Watch | GSP | 71 hr |
| Dec 30, 11:38 AM EST | Flash Flood Warning | GSP | 6 hr |
| Dec 30, 1:05 PM EST | Severe Thunderstorm Warning | GSP | 40 min |
| Dec 30, 5:29 PM EST | Areal Flood Warning | GSP | 6 hr |
| Dec 30, 9:38 PM EST | Areal Flood Warning | GSP | 9 hr |
| Dec 31, 6:23 AM EST | Areal Flood Warning | GSP | 6 hr |
| Dec 31, 12:10 PM EST | Areal Flood Warning | GSP | 12 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 | 14 |
| Severe Thunderstorm Watch | 2 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 23 |
| Special Weather Statement | 40 |
| Flooding | |
| Areal Flood Warning | 16 |
| Flash Flood Warning | 8 |
| Flash Flood Watch | 2 |
| Flood Watch | 2 |
| Areal Flood Advisory | 13 |
| Winter | |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 2 |
| Freezing Rain Advisory | 2 |
| Winter Weather Advisory | 7 |
| Cold | |
| Freeze Warning | 3 |
| Freeze Watch | 2 |
| Frost Advisory | 4 |
| Wind Chill Advisory | 2 |
| Wind and dust | |
| Wind Advisory | 4 |
| Fire | |
| Red Flag Warning | 1 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 13 |
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.