Alert archive / North Carolina / Union County
Weather alerts in Union County, North Carolina, 2019
147 weather alerts in 2019, 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 2019. Tap one for its archive.
- Alerts
- 147
- Warnings
- 14
- Watches
- 11
- Advisories
- 25
- Busiest month
- August31 alerts
- Busiest day
- April 19, 20196 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Union County, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 12 | 8 | 33% | 5 | 80% | 8 min |
| Flash flood warnings | 1 | 1 | 0% | 0 |
Each office's whole area, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Greenville-Spartanburg, SC: tornado warnings | 23 | 0 | 100% | 4 | 0% | |
| NWS Greenville-Spartanburg, SC: severe thunderstorm warnings | 279 | 181 | 35% | 442 | 73% | 17 min |
| NWS Greenville-Spartanburg, SC: flash flood warnings | 30 | 20 | 33% | 68 | 79% | 100 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 12, 3:56 AM EST | Winter Weather Advisory | GSP | 30 hr |
| Jan 16, 4:22 AM EST | Freezing Fog Advisory | GSP | 5 hr |
| Jan 24, 2:53 AM EST | Special Weather Statement | GSP | 52 min |
| Feb 12, 5:13 PM EST | Special Weather Statement | GSP | 47 min |
| Feb 12, 5:31 PM EST | Severe Thunderstorm Warning | GSP | 29 min |
| Feb 22, 4:06 AM EST | Areal Flood Advisory | GSP | 3 hr |
| Feb 28, 2:14 AM EST | Dense Fog Advisory | GSP | 7 hr |
| Apr 2, 9:54 AM EDT | Winter Weather Advisory | GSP | 4 hr |
| Apr 2, 2:29 PM EDT | Frost Advisory | GSP | 19 hr |
| Apr 7, 8:10 AM EDT | Dense Fog Advisory | GSP | 110 min |
| Apr 8, 1:49 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Apr 8, 2:32 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 8, 3:59 PM EDT | Special Weather Statement | GSP | 31 min |
| Apr 8, 4:30 PM EDT | Special Weather Statement | GSP | 45 min |
| Apr 8, 5:48 PM EDT | Special Weather Statement | GSP | 42 min |
| Apr 12, 3:55 PM EDT | Special Weather Statement | GSP | 50 min |
| Apr 13, 11:55 AM EDT | Areal Flood Advisory | GSP | 6 hr |
| Apr 13, 12:49 PM EDT | Special Weather Statement | GSP | 41 min |
| Apr 13, 3:23 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 14, 11:48 AM EDT | Mesoscale Discussion | SPC | 117 min |
| Apr 14, 3:33 PM EDT | Wind Advisory | GSP | 6 hr |
| Apr 14, 5:34 PM EDT | Special Weather Statement | GSP | 41 min |
| Apr 14, 7:12 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 14, 10:09 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Apr 14, 10:14 PM EDT | Tornado Watch | SPC | 6 hr |
| Apr 15, 12:11 AM EDT | Special Weather Statement | GSP | 49 min |
| Apr 19, 10:06 AM EDT | Mesoscale Discussion | SPC | 84 min |
| Apr 19, 10:31 AM EDT | Tornado Watch | SPC | 9 hr |
| Apr 19, 1:13 PM EDT | Special Weather Statement | GSP | 32 min |
| Apr 19, 1:40 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 19, 1:43 PM EDT | Special Weather Statement | GSP | 32 min |
| Apr 19, 2:56 PM EDT | Severe Thunderstorm Warning | GSP | 49 min |
| Apr 25, 3:10 PM EDT | Wind Advisory | GSP | 31 hr |
| Apr 26, 3:04 PM EDT | Special Weather Statement | CAE | 26 min |
| Apr 26, 3:06 PM EDT | Special Weather Statement | GSP | 39 min |
| May 4, 3:40 PM EDT | Special Weather Statement | GSP | 35 min |
| May 4, 3:46 PM EDT | Severe Thunderstorm Warning | GSP | 59 min |
| May 4, 5:47 PM EDT | Special Weather Statement | GSP | 28 min |
| May 4, 5:51 PM EDT | Mesoscale Discussion | SPC | 84 min |
| May 5, 1:42 AM EDT | Special Weather Statement | GSP | 48 min |
| May 5, 5:33 PM EDT | Special Weather Statement | GSP | 27 min |
| May 11, 2:45 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 11, 3:53 PM EDT | Severe Thunderstorm Warning | GSP | 52 min |
| May 11, 4:30 PM EDT | Special Weather Statement | CAE | 30 min |
| May 11, 4:36 PM EDT | Special Weather Statement | GSP | 24 min |
| May 11, 5:07 PM EDT | Special Weather Statement | GSP | 38 min |
| May 11, 5:21 PM EDT | Severe Thunderstorm Warning | GSP | 13 min |
| May 11, 10:03 PM EDT | Special Weather Statement | GSP | 27 min |
| May 11, 10:30 PM EDT | Special Weather Statement | GSP | 30 min |
| May 18, 6:41 PM EDT | Special Weather Statement | GSP | 34 min |
| May 20, 3:53 PM EDT | Special Weather Statement | GSP | 52 min |
| May 31, 1:29 PM EDT | Severe Thunderstorm Watch | SPC | 10 hr |
| May 31, 4:43 PM EDT | Mesoscale Discussion | SPC | 62 min |
| Jun 5, 12:52 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Jun 7, 9:15 PM EDT | Flash Flood Watch | GSP | 72 hr |
| Jun 8, 5:58 PM EDT | Special Weather Statement | GSP | 47 min |
| Jun 18, 7:44 PM EDT | Special Weather Statement | GSP | 31 min |
| Jun 20, 1:44 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 20, 4:47 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Jun 20, 5:18 PM EDT | Special Weather Statement | GSP | 27 min |
| Jun 22, 3:12 AM EDT | Special Weather Statement | GSP | 48 min |
| Jun 22, 1:01 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Jun 22, 2:08 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 22, 4:13 PM EDT | Special Weather Statement | GSP | 47 min |
| Jun 22, 4:26 PM EDT | Severe Thunderstorm Warning | GSP | 49 min |
| Jun 22, 4:35 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Jun 24, 6:28 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 24, 9:00 PM EDT | Severe Thunderstorm Warning | GSP | 30 min |
| Jun 24, 9:27 PM EDT | Severe Thunderstorm Warning | GSP | 63 min |
| Jun 24, 9:56 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 4, 2:41 PM EDT | Special Weather Statement | GSP | 64 min |
| Jul 4, 2:43 PM EDT | Special Weather Statement | CAE | 32 min |
| Jul 6, 3:33 PM EDT | Special Weather Statement | GSP | 27 min |
| Jul 7, 1:29 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 8, 1:58 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 8, 3:56 PM EDT | Special Weather Statement | GSP | 34 min |
| Jul 8, 5:44 PM EDT | Special Weather Statement | GSP | 31 min |
| Jul 8, 6:16 PM EDT | Areal Flood Advisory | GSP | 70 min |
| Jul 11, 7:24 PM EDT | Special Weather Statement | GSP | 36 min |
| Jul 13, 12:53 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 13, 3:37 PM EDT | Special Weather Statement | GSP | 23 min |
| Jul 13, 4:03 PM EDT | Special Weather Statement | GSP | 27 min |
| Jul 13, 4:22 PM EDT | Special Weather Statement | GSP | 23 min |
| Jul 13, 4:57 PM EDT | Areal Flood Advisory | GSP | 3 hr |
| Jul 13, 5:16 PM EDT | Flash Flood Warning | GSP | 3 hr |
| Jul 18, 4:19 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Jul 18, 4:57 PM EDT | Special Weather Statement | GSP | 33 min |
| Jul 19, 2:55 PM EDT | Heat Advisory | GSP | 27 hr |
| Jul 19, 11:43 PM EDT | Special Weather Statement | GSP | 92 min |
| Jul 22, 9:35 PM EDT | Special Weather Statement | GSP | 25 min |
| Jul 23, 1:30 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 23, 2:12 PM EDT | Special Weather Statement | GSP | 33 min |
| Jul 23, 2:59 PM EDT | Special Weather Statement | GSP | 46 min |
| Aug 4, 1:31 PM EDT | Special Weather Statement | GSP | 59 min |
| Aug 4, 2:04 PM EDT | Areal Flood Advisory | GSP | 116 min |
| Aug 4, 2:18 PM EDT | Areal Flood Advisory | GSP | 117 min |
| Aug 7, 8:27 PM EDT | Special Weather Statement | GSP | 33 min |
| Aug 7, 8:42 PM EDT | Special Weather Statement | GSP | 33 min |
| Aug 7, 8:46 PM EDT | Special Weather Statement | CAE | 44 min |
| Aug 7, 9:00 PM EDT | Special Weather Statement | GSP | 45 min |
| Aug 7, 9:47 PM EDT | Special Weather Statement | GSP | 28 min |
| Aug 13, 2:55 PM EDT | Severe Thunderstorm Warning | GSP | 50 min |
| Aug 13, 4:11 PM EDT | Special Weather Statement | GSP | 49 min |
| Aug 13, 4:30 PM EDT | Mesoscale Discussion | SPC | 60 min |
| Aug 14, 2:16 AM EDT | Special Weather Statement | GSP | 29 min |
| Aug 14, 2:42 AM EDT | Special Weather Statement | GSP | 33 min |
| Aug 15, 8:08 PM EDT | Areal Flood Advisory | GSP | 3 hr |
| Aug 15, 8:26 PM EDT | Special Weather Statement | GSP | 49 min |
| Aug 15, 9:45 PM EDT | Areal Flood Advisory | GSP | 3 hr |
| Aug 15, 10:17 PM EDT | Special Weather Statement | GSP | 28 min |
| Aug 15, 10:47 PM EDT | Special Weather Statement | GSP | 43 min |
| Aug 18, 3:58 PM EDT | Special Weather Statement | GSP | 32 min |
| Aug 18, 4:33 PM EDT | Special Weather Statement | GSP | 27 min |
| Aug 19, 1:37 PM EDT | Special Weather Statement | GSP | 38 min |
| Aug 19, 2:35 PM EDT | Special Weather Statement | GSP | 40 min |
| Aug 19, 3:13 PM EDT | Special Weather Statement | GSP | 32 min |
| Aug 19, 3:53 PM EDT | Severe Thunderstorm Warning | GSP | 52 min |
| Aug 20, 3:27 PM EDT | Special Weather Statement | GSP | 33 min |
| Aug 21, 12:18 AM EDT | Special Weather Statement | GSP | 57 min |
| Aug 21, 1:16 AM EDT | Special Weather Statement | GSP | 74 min |
| Aug 21, 2:28 AM EDT | Special Weather Statement | GSP | 62 min |
| Aug 21, 3:30 AM EDT | Special Weather Statement | GSP | 60 min |
| Aug 23, 6:00 PM EDT | Mesoscale Discussion | SPC | 30 min |
| Aug 23, 8:31 PM EDT | Areal Flood Advisory | GSP | 119 min |
| Sep 13, 2:05 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Sep 13, 2:38 PM EDT | Special Weather Statement | GSP | 37 min |
| Sep 13, 2:55 PM EDT | Special Weather Statement | GSP | 35 min |
| Sep 13, 3:28 PM EDT | Severe Thunderstorm Warning | GSP | 62 min |
| Sep 13, 3:56 PM EDT | Areal Flood Advisory | GSP | 83 min |
| Sep 29, 6:09 PM EDT | Special Weather Statement | GSP | 36 min |
| Oct 13, 6:54 PM EDT | Special Weather Statement | GSP | 36 min |
| Oct 22, 1:48 PM EDT | Special Weather Statement | GSP | 27 min |
| Oct 31, 3:39 PM EDT | Tornado Watch | SPC | 7 hr |
| Oct 31, 5:19 PM EDT | Special Weather Statement | CAE | 26 min |
| Oct 31, 5:53 PM EDT | Severe Thunderstorm Warning | GSP | 67 min |
| Oct 31, 6:36 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Oct 31, 7:03 PM EDT | Special Weather Statement | GSP | 27 min |
| Nov 1, 3:45 AM EDT | Frost Advisory | GSP | 29 hr |
| Nov 2, 2:38 PM EDT | Frost Advisory | GSP | 19 hr |
| Nov 3, 2:24 PM EST | Frost Advisory | GSP | 18 hr |
| Nov 7, 2:35 PM EST | Freeze Watch | GSP | 13 hr |
| Nov 8, 3:45 AM EST | Freeze Warning | GSP | 29 hr |
| Nov 19, 4:50 AM EST | Dense Fog Advisory | GSP | 4 hr |
| Nov 23, 7:02 PM EST | Special Weather Statement | GSP | 43 min |
| Nov 23, 7:46 PM EST | Special Weather Statement | GSP | 29 min |
| Dec 10, 5:18 AM EST | Dense Fog Advisory | GSP | 5 hr |
| Dec 23, 2:48 PM EST | Areal Flood Advisory | GSP | 6 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 | 12 |
| Severe Thunderstorm Watch | 6 |
| Tornado Watch | 3 |
| Mesoscale Discussion | 23 |
| Special Weather Statement | 74 |
| Flooding | |
| Flash Flood Warning | 1 |
| Flash Flood Watch | 1 |
| Areal Flood Advisory | 11 |
| Winter | |
| Winter Weather Advisory | 2 |
| Heat | |
| Heat Advisory | 1 |
| Cold | |
| Freeze Warning | 1 |
| Freeze Watch | 1 |
| Frost Advisory | 4 |
| Wind and dust | |
| Wind Advisory | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 4 |
| Freezing Fog Advisory | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20182020
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.