Alert archive / North Carolina / Union County
Weather alerts in Union County, North Carolina, 2013
133 weather alerts in 2013, 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 2013. Tap one for its archive.
- Alerts
- 133
- Warnings
- 26
- Watches
- 18
- Advisories
- 21
- Busiest month
- June48 alerts
- Busiest day
- June 10, 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.
Union County, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 19 | 10 | 47% | 10 | 90% | 27 min |
| Flash flood warnings | 0 | 1 | 0% |
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 16, 4:06 PM EST | Winter Weather Advisory | GSP | 31 hr |
| Jan 24, 3:41 PM EST | Winter Weather Advisory | GSP | 44 hr |
| Jan 25, 12:43 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 29, 3:40 PM EST | Wind Advisory | GSP | 69 hr |
| Jan 30, 1:19 PM EST | Tornado Watch | SPC | 9 hr |
| Jan 30, 7:56 PM EST | Mesoscale Discussion | SPC | 94 min |
| Jan 30, 8:32 PM EST | Special Weather Statement | GSP | 43 min |
| Jan 30, 8:50 PM EST | Severe Thunderstorm Warning | GSP | 55 min |
| Feb 15, 3:02 PM EST | Winter Weather Advisory | GSP | 45 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 5, 7:56 PM EST | Special Weather Statement | GSP | 49 min |
| 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 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 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, 4:08 PM EDT | Severe Thunderstorm Warning | GSP | 52 min |
| Apr 19, 4:30 PM EDT | Severe Thunderstorm Warning | GSP | 30 min |
| Apr 19, 4:48 PM EDT | Mesoscale Discussion | SPC | 57 min |
| Apr 30, 3:41 AM EDT | Dense Fog Advisory | GSP | 6 hr |
| May 11, 7:11 PM EDT | Mesoscale Discussion | SPC | 64 min |
| May 20, 7:37 PM EDT | Special Weather Statement | GSP | 23 min |
| May 20, 8:11 PM EDT | Special Weather Statement | GSP | 34 min |
| May 21, 3:24 PM EDT | Severe Thunderstorm Warning | GSP | 66 min |
| May 21, 3:47 PM EDT | Severe Thunderstorm Warning | GSP | 58 min |
| May 21, 4:13 PM EDT | Severe Thunderstorm Warning | GSP | 62 min |
| Jun 3, 2:28 PM EDT | Mesoscale Discussion | SPC | 62 min |
| Jun 6, 4:59 AM EDT | Flash Flood Watch | GSP | 37 hr |
| Jun 6, 6:02 PM EDT | Special Weather Statement | GSP | 58 min |
| Jun 6, 6:52 PM EDT | Areal Flood Advisory | GSP | 3 hr |
| Jun 7, 7:09 PM EDT | Special Weather Statement | GSP | 36 min |
| Jun 7, 7:46 PM EDT | Special Weather Statement | GSP | 44 min |
| Jun 7, 8:22 PM EDT | Special Weather Statement | GSP | 38 min |
| Jun 7, 8:45 PM EDT | Special Weather Statement | GSP | 30 min |
| Jun 7, 11:00 PM EDT | Special Weather Statement | GSP | 45 min |
| Jun 7, 11:35 PM EDT | Areal Flood Advisory | GSP | 115 min |
| Jun 9, 9:09 PM EDT | Flash Flood Watch | GSP | 19 hr |
| Jun 10, 11:31 AM EDT | Mesoscale Discussion | SPC | 119 min |
| Jun 10, 1:18 PM EDT | Tornado Watch | SPC | 9 hr |
| Jun 10, 2:49 PM EDT | Severe Thunderstorm Warning | GSP | 56 min |
| Jun 10, 3:34 PM EDT | Special Weather Statement | GSP | 56 min |
| Jun 10, 4:03 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jun 13, 1:40 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 13, 4:22 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Jun 13, 5:45 PM EDT | Severe Thunderstorm Warning | GSP | 60 min |
| Jun 13, 6:03 PM EDT | Severe Thunderstorm Warning | GSP | 57 min |
| Jun 13, 7:41 PM EDT | Special Weather Statement | GSP | 34 min |
| Jun 17, 5:49 PM EDT | Special Weather Statement | GSP | 41 min |
| Jun 17, 6:44 PM EDT | Special Weather Statement | GSP | 46 min |
| Jun 18, 6:00 PM EDT | Severe Thunderstorm Warning | GSP | 60 min |
| Jun 24, 1:14 PM EDT | Special Weather Statement | GSP | 61 min |
| Jun 24, 2:39 PM EDT | Special Weather Statement | GSP | 51 min |
| Jun 24, 2:44 PM EDT | Severe Thunderstorm Warning | GSP | 61 min |
| Jun 24, 3:15 PM EDT | Areal Flood Advisory | GSP | 105 min |
| Jun 26, 2:30 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 26, 6:27 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Jun 26, 6:51 PM EDT | Special Weather Statement | GSP | 54 min |
| Jun 26, 7:45 PM EDT | Special Weather Statement | GSP | 60 min |
| Jun 27, 4:14 PM EDT | Special Weather Statement | GSP | 61 min |
| Jun 27, 5:07 PM EDT | Special Weather Statement | GSP | 53 min |
| Jun 27, 8:17 PM EDT | Special Weather Statement | GSP | 58 min |
| Jun 27, 9:09 PM EDT | Areal Flood Advisory | GSP | 111 min |
| Jun 27, 9:29 PM EDT | Special Weather Statement | GSP | 46 min |
| Jun 27, 10:20 PM EDT | Severe Thunderstorm Warning | GSP | 40 min |
| Jun 28, 1:46 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Jun 28, 4:42 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Jun 28, 8:54 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Jun 28, 9:50 PM EDT | Special Weather Statement | CAE | 55 min |
| Jun 28, 9:55 PM EDT | Special Weather Statement | GSP | 50 min |
| Jun 29, 8:16 PM EDT | Special Weather Statement | GSP | 59 min |
| Jun 30, 1:03 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 30, 3:24 PM EDT | Flash Flood Watch | GSP | 7 days |
| Jun 30, 6:06 PM EDT | Special Weather Statement | GSP | 39 min |
| Jun 30, 6:34 PM EDT | Special Weather Statement | GSP | 41 min |
| Jul 2, 4:08 PM EDT | Areal Flood Advisory | GSP | 3 hr |
| Jul 2, 11:32 PM EDT | Special Weather Statement | GSP | 43 min |
| Jul 4, 3:06 PM EDT | Severe Thunderstorm Warning | GSP | 54 min |
| Jul 7, 7:15 PM EDT | Special Weather Statement | GSP | 45 min |
| Jul 8, 5:55 PM EDT | Special Weather Statement | GSP | 50 min |
| Jul 9, 4:24 PM EDT | Special Weather Statement | GSP | 51 min |
| Jul 11, 4:16 AM EDT | Flash Flood Watch | GSP | 24 hr |
| Jul 11, 2:17 PM EDT | Special Weather Statement | GSP | 43 min |
| Jul 11, 5:33 PM EDT | Special Weather Statement | GSP | 57 min |
| Jul 13, 3:54 AM EDT | Flash Flood Watch | GSP | 24 hr |
| Jul 14, 5:21 PM EDT | Special Weather Statement | GSP | 39 min |
| Jul 14, 6:06 PM EDT | Special Weather Statement | GSP | 39 min |
| Jul 17, 2:22 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Jul 17, 2:27 PM EDT | Special Weather Statement | GSP | 33 min |
| Jul 17, 2:30 PM EDT | Severe Thunderstorm Warning | GSP | 60 min |
| Jul 17, 2:57 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 20, 9:10 PM EDT | Areal Flood Advisory | GSP | 110 min |
| Jul 20, 10:57 PM EDT | Areal Flood Advisory | GSP | 2 hr |
| Jul 21, 6:46 PM EDT | Severe Thunderstorm Warning | GSP | 59 min |
| Jul 24, 1:33 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jul 24, 6:13 PM EDT | Severe Thunderstorm Warning | GSP | 62 min |
| Jul 24, 6:42 PM EDT | Severe Thunderstorm Warning | GSP | 63 min |
| Jul 24, 7:27 PM EDT | Severe Thunderstorm Warning | GSP | 63 min |
| Jul 27, 11:02 AM EDT | Flash Flood Watch | GSP | 19 hr |
| Jul 27, 1:43 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Jul 27, 3:13 PM EDT | Special Weather Statement | GSP | 47 min |
| Aug 1, 2:18 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Aug 1, 4:25 PM EDT | Special Weather Statement | GSP | 50 min |
| Aug 10, 6:24 PM EDT | Special Weather Statement | GSP | 51 min |
| Aug 12, 11:54 PM EDT | Special Weather Statement | GSP | 36 min |
| Aug 13, 12:04 AM EDT | Special Weather Statement | GSP | 26 min |
| Aug 13, 3:04 PM EDT | Special Weather Statement | GSP | 26 min |
| Aug 21, 1:26 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 21, 4:57 PM EDT | Special Weather Statement | GSP | 48 min |
| Sep 1, 7:33 PM EDT | Severe Thunderstorm Warning | GSP | 57 min |
| Sep 2, 4:03 AM EDT | Special Weather Statement | GSP | 57 min |
| Sep 21, 7:32 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 21, 9:14 PM EDT | Areal Flood Advisory | GSP | 4 hr |
| Oct 23, 3:26 AM EDT | Frost Advisory | GSP | 30 hr |
| Oct 24, 2:23 PM EDT | Freeze Watch | GSP | 13 hr |
| Oct 25, 3:11 AM EDT | Freeze Warning | GSP | 31 hr |
| Nov 17, 5:42 AM EST | Dense Fog Advisory | GSP | 5 hr |
| Nov 26, 6:57 PM EST | Special Weather Statement | GSP | 48 min |
| Dec 15, 5:50 AM EST | Dense Fog Advisory | GSP | 3 hr |
| Dec 22, 3:29 AM EST | Flood Watch | GSP | 33 hr |
| Dec 22, 3:03 PM EST | Special Weather Statement | GSP | 27 min |
| Dec 22, 3:46 PM EST | Special Weather Statement | GSP | 29 min |
| Dec 23, 8:21 AM EST | Areal Flood Advisory | GSP | 3 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 | 19 |
| Severe Thunderstorm Watch | 2 |
| Tornado Watch | 4 |
| Mesoscale Discussion | 21 |
| Special Weather Statement | 47 |
| Flooding | |
| Flash Flood Watch | 6 |
| Flood Watch | 1 |
| Areal Flood Advisory | 9 |
| Winter | |
| Winter Weather Advisory | 3 |
| Cold | |
| Freeze Warning | 7 |
| Freeze Watch | 5 |
| Frost Advisory | 1 |
| Wind and dust | |
| Wind Advisory | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 6 |
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.