Alert archive / North Carolina / Polk County
Weather alerts in Polk County, North Carolina, 2012
186 weather alerts in 2012, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Polk County and its neighbors
Each county as a circle sized by its count in 2012. Tap one for its archive.
- Alerts
- 186
- Warnings
- 43
- Watches
- 24
- Advisories
- 38
- Busiest month
- July43 alerts
- Busiest day
- February 24, 20127 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Polk County, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 33 | 26 | 21% | 11 | 91% | 27 min |
| Flash flood warnings | 1 | 0 | 100% | 0 |
Each office's whole area, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Greenville-Spartanburg, SC: tornado warnings | 15 | 0 | 100% | 1 | 0% | |
| NWS Greenville-Spartanburg, SC: severe thunderstorm warnings | 581 | 410 | 29% | 722 | 89% | 23 min |
| NWS Greenville-Spartanburg, SC: flash flood warnings | 33 | 19 | 42% | 47 | 79% | 46 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 1, 10:36 AM EST | Lake Wind Advisory | GSP | 55 hr |
| Jan 1, 3:30 PM EST | Winter Weather Advisory | GSP | 45 hr |
| Jan 9, 9:58 PM EST | Dense Fog Advisory | GSP | 11 hr |
| Jan 10, 2:44 PM EST | Flood Watch | GSP | 29 hr |
| Jan 11, 4:24 PM EST | Special Weather Statement | GSP | 66 min |
| Jan 11, 4:55 PM EST | Severe Thunderstorm Warning | GSP | 65 min |
| Jan 12, 4:11 AM EST | Lake Wind Advisory | GSP | 17 hr |
| Jan 12, 9:18 PM EST | Wind Advisory | GSP | 6 hr |
| Jan 13, 3:37 AM EST | Lake Wind Advisory | GSP | 6 hr |
| Jan 21, 9:42 AM EST | Special Weather Statement | GSP | 63 min |
| Jan 24, 1:20 AM EST | Dense Fog Advisory | GSP | 10 hr |
| Feb 5, 7:56 AM EST | Dense Fog Advisory | GSP | 3 hr |
| Feb 11, 4:10 AM EST | Lake Wind Advisory | GSP | 26 hr |
| Feb 11, 4:20 AM EST | Wind Chill Advisory | GSP | 30 hr |
| Feb 11, 5:05 PM EST | Wind Advisory | GSP | 13 hr |
| Feb 15, 4:34 AM EST | Dense Fog Advisory | GSP | 4 hr |
| Feb 16, 10:23 PM EST | Dense Fog Advisory | GSP | 10 hr |
| Feb 19, 4:40 AM EST | Winter Weather Advisory | GSP | 22 hr |
| Feb 23, 2:38 PM EST | Wind Advisory | GSP | 51 hr |
| Feb 24, 6:56 AM EST | Mesoscale Discussion | SPC | 94 min |
| Feb 24, 9:05 AM EST | Mesoscale Discussion | SPC | 25 min |
| Feb 24, 9:17 AM EST | Tornado Watch | SPC | 7 hr |
| Feb 24, 12:00 PM EST | Mesoscale Discussion | SPC | 60 min |
| Feb 24, 2:20 PM EST | Special Weather Statement | GSP | 40 min |
| Feb 24, 2:41 PM EST | Fire Weather Watch | GSP | 15 hr |
| Feb 24, 3:24 PM EST | Mesoscale Discussion | SPC | 66 min |
| Feb 25, 3:31 AM EST | Red Flag Warning | GSP | 16 hr |
| Feb 29, 6:37 PM EST | Tornado Watch | SPC | 3 hr |
| Mar 2, 3:30 AM EST | Mesoscale Discussion | SPC | 90 min |
| Mar 2, 3:19 PM EST | Tornado Watch | SPC | 8 hr |
| Mar 2, 10:54 PM EST | Tornado Watch | SPC | 6 hr |
| Mar 3, 12:40 AM EST | Mesoscale Discussion | SPC | 95 min |
| Mar 4, 3:48 AM EST | Lake Wind Advisory | GSP | 16 hr |
| Mar 4, 7:52 PM EST | Lake Wind Advisory | GSP | 22 hr |
| Mar 10, 2:04 AM EST | Freeze Warning | GSP | 31 hr |
| Mar 14, 3:30 AM EDT | Dense Fog Advisory | GSP | 6 hr |
| Mar 16, 3:54 PM EDT | Special Weather Statement | GSP | 66 min |
| Mar 16, 4:29 PM EDT | Severe Thunderstorm Warning | GSP | 35 min |
| Mar 20, 3:04 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Mar 20, 5:32 PM EDT | Special Weather Statement | GSP | 43 min |
| Mar 24, 7:29 AM EDT | Severe Thunderstorm Warning | GSP | 26 min |
| Mar 24, 12:46 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Mar 24, 6:58 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Mar 29, 3:19 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Apr 1, 2:31 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Apr 1, 5:18 PM EDT | Severe Thunderstorm Warning | GSP | 57 min |
| Apr 2, 1:48 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Apr 3, 3:55 PM EDT | Special Weather Statement | GSP | 50 min |
| Apr 5, 1:03 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Apr 5, 1:47 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 5, 3:12 PM EDT | Severe Thunderstorm Warning | GSP | 63 min |
| Apr 5, 3:26 PM EDT | Severe Thunderstorm Warning | GSP | 64 min |
| Apr 5, 3:37 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Apr 6, 5:33 AM EDT | Frost Advisory | GSP | 28 hr |
| Apr 9, 11:10 AM EDT | Fire Weather Watch | GSP | 16 hr |
| Apr 9, 2:34 PM EDT | Freeze Watch | GSP | 13 hr |
| Apr 10, 3:15 AM EDT | Red Flag Warning | GSP | 17 hr |
| Apr 10, 3:27 AM EDT | Freeze Warning | GSP | 30 hr |
| Apr 10, 3:11 PM EDT | Freeze Watch | GSP | 20 hr |
| Apr 11, 11:06 AM EDT | Frost Advisory | GSP | 22 hr |
| Apr 12, 2:49 PM EDT | Frost Advisory | GSP | 18 hr |
| Apr 12, 2:49 PM EDT | Freeze Warning | GSP | 18 hr |
| Apr 21, 12:48 PM EDT | Special Weather Statement | GSP | 117 min |
| Apr 22, 10:22 PM EDT | Wind Advisory | GSP | 23 hr |
| Apr 23, 5:08 AM EDT | Freeze Warning | GSP | 27 hr |
| Apr 26, 7:24 AM EDT | Mesoscale Discussion | SPC | 96 min |
| Apr 26, 8:10 AM EDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Apr 26, 8:46 AM EDT | Severe Thunderstorm Warning | GSP | 59 min |
| Apr 26, 8:47 AM EDT | Mesoscale Discussion | SPC | 88 min |
| Apr 26, 4:22 PM EDT | Mesoscale Discussion | SPC | 83 min |
| May 1, 1:53 PM EDT | Severe Thunderstorm Warning | GSP | 67 min |
| May 1, 2:39 PM EDT | Severe Thunderstorm Warning | GSP | 66 min |
| May 1, 2:51 PM EDT | Severe Thunderstorm Warning | GSP | 54 min |
| May 1, 3:46 PM EDT | Severe Thunderstorm Warning | GSP | 59 min |
| May 1, 3:54 PM EDT | Areal Flood Advisory | GSP | 2 hr |
| May 5, 9:28 AM EDT | Special Weather Statement | GSP | 62 min |
| May 8, 6:57 PM EDT | Special Weather Statement | GSP | 33 min |
| May 14, 5:29 AM EDT | Areal Flood Advisory | GSP | 3 hr |
| May 14, 5:23 PM EDT | Flash Flood Watch | GSP | 10 hr |
| May 14, 5:56 PM EDT | Special Weather Statement | GSP | 34 min |
| May 14, 6:14 PM EDT | Mesoscale Discussion | SPC | 61 min |
| May 15, 10:54 AM EDT | Flash Flood Watch | GSP | 17 hr |
| May 15, 3:13 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 15, 6:30 PM EDT | Mesoscale Discussion | SPC | 90 min |
| May 15, 8:42 PM EDT | Mesoscale Discussion | SPC | 63 min |
| May 21, 5:12 PM EDT | Special Weather Statement | GSP | 48 min |
| May 23, 5:37 AM EDT | Special Weather Statement | GSP | 113 min |
| Jun 12, 2:50 PM EDT | Special Weather Statement | GSP | 40 min |
| Jun 12, 3:25 PM EDT | Special Weather Statement | GSP | 50 min |
| Jun 12, 3:47 PM EDT | Severe Thunderstorm Warning | GSP | 58 min |
| Jun 13, 12:57 PM EDT | Severe Thunderstorm Warning | GSP | 63 min |
| Jun 22, 2:23 PM EDT | Special Weather Statement | GSP | 52 min |
| Jun 22, 3:39 PM EDT | Special Weather Statement | GSP | 51 min |
| Jun 24, 8:20 PM EDT | Severe Thunderstorm Warning | GSP | 40 min |
| Jun 25, 8:16 PM EDT | Severe Thunderstorm Warning | GSP | 34 min |
| Jun 29, 2:49 PM EDT | Heat Advisory | GSP | 29 hr |
| Jun 30, 2:44 PM EDT | Heat Advisory | GSP | 29 hr |
| Jul 1, 1:39 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Jul 1, 2:01 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 1, 5:36 PM EDT | Special Weather Statement | GSP | 39 min |
| Jul 1, 5:41 PM EDT | Severe Thunderstorm Warning | GSP | 64 min |
| Jul 2, 12:39 AM EDT | Mesoscale Discussion | SPC | 96 min |
| Jul 3, 2:48 PM EDT | Severe Thunderstorm Warning | GSP | 27 min |
| Jul 3, 6:23 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 4, 2:02 PM EDT | Mesoscale Discussion | SPC | 58 min |
| Jul 4, 3:14 PM EDT | Severe Thunderstorm Warning | GSP | 61 min |
| Jul 5, 1:11 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Jul 5, 1:37 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 5, 5:43 PM EDT | Severe Thunderstorm Warning | GSP | 62 min |
| Jul 8, 2:52 PM EDT | Special Weather Statement | GSP | 23 min |
| Jul 9, 1:01 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Jul 9, 2:53 PM EDT | Special Weather Statement | GSP | 37 min |
| Jul 10, 12:23 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 16, 5:57 PM EDT | Severe Thunderstorm Warning | GSP | 63 min |
| Jul 18, 3:53 PM EDT | Severe Thunderstorm Warning | GSP | 67 min |
| Jul 19, 4:06 PM EDT | Special Weather Statement | GSP | 24 min |
| Jul 19, 4:11 PM EDT | Severe Thunderstorm Warning | GSP | 64 min |
| Jul 19, 5:15 PM EDT | Severe Thunderstorm Warning | GSP | 60 min |
| Jul 19, 9:55 PM EDT | Special Weather Statement | GSP | 65 min |
| Jul 20, 2:47 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 21, 2:17 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 22, 2:20 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 22, 5:18 PM EDT | Special Weather Statement | GSP | 27 min |
| Jul 23, 12:58 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 23, 2:08 PM EDT | Severe Thunderstorm Warning | GSP | 67 min |
| Jul 23, 3:42 PM EDT | Special Weather Statement | GSP | 33 min |
| Jul 24, 1:12 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Jul 24, 2:36 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 24, 5:37 PM EDT | Special Weather Statement | GSP | 38 min |
| Jul 25, 7:15 AM EDT | Special Weather Statement | GSP | 60 min |
| Jul 25, 3:11 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 25, 6:59 PM EDT | Special Weather Statement | GSP | 46 min |
| Jul 27, 1:54 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Jul 27, 2:35 PM EDT | Special Weather Statement | GSP | 40 min |
| Jul 27, 3:16 PM EDT | Special Weather Statement | GSP | 44 min |
| Jul 27, 3:20 PM EDT | Severe Thunderstorm Warning | GSP | 55 min |
| Jul 27, 3:48 PM EDT | Severe Thunderstorm Warning | GSP | 57 min |
| Jul 28, 1:57 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 28, 3:37 PM EDT | Special Weather Statement | GSP | 38 min |
| Jul 28, 3:59 PM EDT | Severe Thunderstorm Warning | GSP | 46 min |
| Aug 1, 4:22 PM EDT | Special Weather Statement | GSP | 53 min |
| Aug 8, 5:00 PM EDT | Severe Thunderstorm Warning | GSP | 24 min |
| Aug 9, 4:51 PM EDT | Severe Thunderstorm Warning | GSP | 69 min |
| Aug 14, 4:16 PM EDT | Severe Thunderstorm Warning | GSP | 59 min |
| Aug 14, 5:20 PM EDT | Special Weather Statement | GSP | 40 min |
| Aug 22, 10:40 PM EDT | Special Weather Statement | GSP | 35 min |
| Aug 22, 11:29 PM EDT | Flash Flood Warning | GSP | 2 hr |
| Aug 23, 7:38 PM EDT | Special Weather Statement | GSP | 37 min |
| Aug 29, 4:32 PM EDT | Special Weather Statement | GSP | 43 min |
| Sep 2, 2:04 PM EDT | Areal Flood Advisory | GSP | 86 min |
| Sep 3, 3:04 PM EDT | Special Weather Statement | GSP | 41 min |
| Sep 3, 3:09 PM EDT | Severe Thunderstorm Warning | GSP | 32 min |
| Sep 8, 1:14 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 8, 1:20 PM EDT | Special Weather Statement | GSP | 40 min |
| Sep 8, 1:32 PM EDT | Severe Thunderstorm Warning | GSP | 29 min |
| Sep 8, 1:48 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Sep 8, 3:07 PM EDT | Special Weather Statement | GSP | 53 min |
| Sep 17, 4:19 AM EDT | Flash Flood Watch | GSP | 7 hr |
| Sep 17, 11:46 AM EDT | Flood Watch | GSP | 30 hr |
| Sep 17, 6:37 PM EDT | Special Weather Statement | GSP | 23 min |
| Sep 17, 6:39 PM EDT | Tornado Watch | SPC | 8 hr |
| Sep 17, 7:07 PM EDT | Special Weather Statement | GSP | 23 min |
| Sep 17, 8:14 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 18, 12:23 AM EDT | Mesoscale Discussion | SPC | 97 min |
| Sep 28, 2:36 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Sep 28, 4:47 PM EDT | Special Weather Statement | GSP | 28 min |
| Sep 28, 5:18 PM EDT | Special Weather Statement | GSP | 27 min |
| Sep 28, 5:37 PM EDT | Special Weather Statement | GSP | 23 min |
| Sep 29, 3:11 PM EDT | Special Weather Statement | GSP | 49 min |
| Sep 29, 3:18 PM EDT | Severe Thunderstorm Warning | GSP | 57 min |
| Oct 28, 5:21 AM EDT | Freeze Warning | GSP | 28 hr |
| Oct 28, 5:21 AM EDT | High Wind Watch | GSP | 11 hr |
| Oct 28, 5:21 AM EDT | High Wind Warning | GSP | 53 hr |
| Oct 28, 3:52 PM EDT | Wind Advisory | GSP | 43 hr |
| Oct 31, 4:21 AM EDT | Frost Advisory | GSP | 29 hr |
| Nov 1, 4:09 AM EDT | Frost Advisory | GSP | 29 hr |
| Nov 2, 2:46 PM EDT | Frost Advisory | GSP | 18 hr |
| Nov 7, 2:39 PM EST | Frost Advisory | GSP | 18 hr |
| Nov 8, 2:27 PM EST | Frost Advisory | GSP | 19 hr |
| Dec 8, 2:30 AM EST | Dense Fog Advisory | GSP | 8 hr |
| Dec 19, 3:19 PM EST | High Wind Watch | GSP | 12 hr |
| Dec 20, 3:44 AM EST | High Wind Warning | GSP | 56 hr |
| Dec 24, 7:15 PM EST | Dense Fog Advisory | GSP | 15 hr |
| Dec 25, 3:04 PM EST | Wind Advisory | GSP | 27 hr |
| Dec 26, 2:22 PM EST | Wind Advisory | GSP | 23 hr |
| Dec 29, 4:12 AM EST | Wind Advisory | GSP | 32 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 | 33 |
| Severe Thunderstorm Watch | 8 |
| Tornado Watch | 5 |
| Mesoscale Discussion | 38 |
| Special Weather Statement | 43 |
| Flooding | |
| Flash Flood Warning | 1 |
| Flash Flood Watch | 3 |
| Flood Watch | 2 |
| Areal Flood Advisory | 3 |
| Winter | |
| Winter Weather Advisory | 2 |
| Heat | |
| Heat Advisory | 2 |
| Cold | |
| Freeze Warning | 5 |
| Freeze Watch | 2 |
| Frost Advisory | 8 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| High Wind Warning | 2 |
| High Wind Watch | 2 |
| Lake Wind Advisory | 6 |
| Wind Advisory | 8 |
| Fire | |
| Red Flag Warning | 2 |
| Fire Weather Watch | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 8 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20112013
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.