Alert archive / North Carolina / Swain County
Weather alerts in Swain County, North Carolina, 2016
123 weather alerts in 2016, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Swain County and its neighbors
Each county as a circle sized by its count in 2016. Tap one for its archive.
- Alerts
- 123
- Warnings
- 22
- Watches
- 15
- Advisories
- 48
- Busiest month
- February24 alerts
- Busiest day
- February 3, 20166 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Swain County, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 6 | 4 | 33% | 3 | 100% | 28 min |
| Flash flood warnings | 1 | 1 | 0% | 5 | 80% | 88 min |
Each office's whole area, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Greenville-Spartanburg, SC: tornado warnings | 8 | 2 | 75% | 6 | 100% | 41 min |
| NWS Greenville-Spartanburg, SC: severe thunderstorm warnings | 248 | 185 | 25% | 536 | 80% | 18 min |
| NWS Greenville-Spartanburg, SC: flash flood warnings | 23 | 19 | 17% | 79 | 87% | 91 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 9, 10:41 PM EST | Special Weather Statement | GSP | 64 min |
| Jan 12, 2:41 PM EST | Wind Advisory | GSP | 3 hr |
| Jan 16, 2:33 PM EST | Winter Weather Advisory | GSP | 20 hr |
| Jan 17, 10:11 AM EST | Wind Chill Advisory | GSP | 26 hr |
| Jan 18, 12:04 PM EST | Wind Chill Advisory | GSP | 24 hr |
| Jan 19, 10:49 AM EST | Winter Weather Advisory | GSP | 44 hr |
| Jan 20, 3:52 PM EST | Winter Storm Watch | GSP | 13 hr |
| Jan 21, 4:34 AM EST | Winter Storm Warning | GSP | 65 hr |
| Jan 23, 2:53 PM EST | Winter Weather Advisory | GSP | 16 hr |
| Jan 26, 2:53 PM EST | Freezing Rain Advisory | GSP | 12 hr |
| Feb 2, 9:33 PM EST | Wind Advisory | GSP | 12 hr |
| Feb 3, 4:58 AM EST | Mesoscale Discussion | SPC | 92 min |
| Feb 3, 6:32 AM EST | Special Weather Statement | GSP | 58 min |
| Feb 3, 6:34 AM EST | Areal Flood Advisory | GSP | 3 hr |
| Feb 3, 9:27 AM EST | Areal Flood Advisory | GSP | 3 hr |
| Feb 3, 12:57 PM EST | River Flood Advisory | GSP | 12 hr |
| Feb 7, 3:50 PM EST | Winter Storm Watch | GSP | 24 hr |
| Feb 7, 3:50 PM EST | Winter Weather Advisory | GSP | 3 days |
| Feb 8, 4:17 AM EST | Winter Storm Warning | GSP | 27 hr |
| Feb 8, 3:37 PM EST | Wind Chill Advisory | GSP | 44 hr |
| Feb 9, 2:52 PM EST | Wind Chill Advisory | GSP | 43 hr |
| Feb 12, 4:01 AM EST | Wind Chill Advisory | GSP | 48 hr |
| Feb 12, 4:01 AM EST | Winter Weather Advisory | GSP | 26 hr |
| Feb 13, 3:22 PM EST | Winter Storm Watch | GSP | 24 hr |
| Feb 14, 2:52 PM EST | Winter Weather Advisory | GSP | 33 hr |
| Feb 15, 5:02 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 16, 6:08 AM EST | Winter Weather Advisory | GSP | 22 hr |
| Feb 22, 3:34 PM EST | High Wind Watch | GSP | 23 hr |
| Feb 23, 3:21 AM EST | Flash Flood Watch | GSP | 35 hr |
| Feb 23, 2:52 PM EST | High Wind Warning | GSP | 28 hr |
| Feb 23, 2:52 PM EST | Wind Advisory | GSP | 33 hr |
| Feb 24, 3:57 AM EST | Winter Weather Advisory | GSP | 51 hr |
| Feb 24, 8:14 AM EST | Mesoscale Discussion | SPC | 2 hr |
| Feb 24, 12:10 PM EST | Wind Advisory | GSP | 12 hr |
| Mar 3, 3:28 AM EST | Winter Weather Advisory | GSP | 24 hr |
| Mar 14, 12:38 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Mar 19, 3:10 PM EDT | Frost Advisory | GSP | 18 hr |
| Mar 19, 3:10 PM EDT | Freeze Watch | GSP | 24 hr |
| Mar 20, 3:48 AM EDT | Freeze Warning | GSP | 30 hr |
| Mar 20, 2:12 PM EDT | Winter Weather Advisory | GSP | 20 hr |
| Mar 20, 2:49 PM EDT | Freeze Watch | GSP | 24 hr |
| Mar 21, 3:42 AM EDT | Freeze Warning | GSP | 29 hr |
| Mar 22, 2:49 PM EDT | Frost Advisory | GSP | 18 hr |
| Mar 28, 2:31 PM EDT | Frost Advisory | GSP | 18 hr |
| Apr 1, 3:15 PM EDT | Freeze Watch | GSP | 12 hr |
| Apr 1, 3:15 PM EDT | Wind Advisory | GSP | 36 hr |
| Apr 2, 3:32 AM EDT | Freeze Warning | GSP | 30 hr |
| Apr 3, 3:03 PM EDT | Freeze Watch | GSP | 12 hr |
| Apr 4, 3:19 AM EDT | Freeze Watch | GSP | 24 hr |
| Apr 4, 3:19 AM EDT | Freeze Warning | GSP | 31 hr |
| Apr 5, 3:37 AM EDT | Freeze Warning | GSP | 29 hr |
| Apr 7, 10:30 AM EDT | Wind Advisory | GSP | 9 hr |
| Apr 7, 3:59 PM EDT | Freeze Watch | GSP | 12 hr |
| Apr 7, 3:59 PM EDT | Freeze Warning | GSP | 18 hr |
| Apr 8, 3:59 AM EDT | Freeze Warning | GSP | 30 hr |
| Apr 8, 3:59 AM EDT | Hard Freeze Watch | GSP | 24 hr |
| Apr 8, 3:59 AM EDT | Wind Advisory | GSP | 38 hr |
| Apr 9, 3:50 AM EDT | Freeze Warning | GSP | 30 hr |
| May 2, 1:34 PM EDT | Mesoscale Discussion | SPC | 116 min |
| May 2, 3:45 PM EDT | Special Weather Statement | GSP | 30 min |
| May 4, 6:03 PM EDT | Special Weather Statement | GSP | 57 min |
| May 4, 8:51 PM EDT | Special Weather Statement | GSP | 39 min |
| May 21, 5:08 AM EDT | Special Weather Statement | MRX | 52 min |
| Jun 1, 1:22 PM EDT | Special Weather Statement | GSP | 23 min |
| Jun 4, 6:10 PM EDT | Special Weather Statement | GSP | 50 min |
| Jun 14, 5:48 PM EDT | Special Weather Statement | GSP | 27 min |
| Jun 14, 6:22 PM EDT | Special Weather Statement | GSP | 23 min |
| Jun 14, 8:01 PM EDT | Special Weather Statement | GSP | 29 min |
| Jun 17, 2:11 AM EDT | Severe Thunderstorm Warning | GSP | 49 min |
| Jun 24, 1:05 AM EDT | Special Weather Statement | GSP | 55 min |
| Jun 24, 2:07 AM EDT | Special Weather Statement | GSP | 53 min |
| Jun 26, 5:08 PM EDT | Special Weather Statement | GSP | 22 min |
| Jun 26, 5:44 PM EDT | Severe Thunderstorm Warning | GSP | 23 min |
| Jun 26, 5:53 PM EDT | Areal Flood Advisory | GSP | 112 min |
| Jul 6, 5:48 PM EDT | Mesoscale Discussion | SPC | 57 min |
| Jul 7, 6:37 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Jul 7, 7:11 PM EDT | Severe Thunderstorm Warning | GSP | 49 min |
| Jul 7, 7:21 PM EDT | Severe Thunderstorm Watch | SPC | 2 hr |
| Jul 8, 5:48 PM EDT | Mesoscale Discussion | SPC | 57 min |
| Jul 8, 6:15 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 8, 6:58 PM EDT | Severe Thunderstorm Warning | GSP | 62 min |
| Jul 8, 7:47 PM EDT | Severe Thunderstorm Warning | GSP | 58 min |
| Jul 14, 6:13 PM EDT | Special Weather Statement | GSP | 32 min |
| Jul 20, 3:58 PM EDT | Special Weather Statement | GSP | 47 min |
| Jul 23, 12:13 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 23, 6:00 PM EDT | Special Weather Statement | GSP | 45 min |
| Jul 27, 6:04 PM EDT | Special Weather Statement | GSP | 26 min |
| Aug 4, 7:52 PM EDT | Special Weather Statement | GSP | 38 min |
| Aug 4, 8:35 PM EDT | Areal Flood Advisory | GSP | 115 min |
| Aug 4, 9:04 PM EDT | Special Weather Statement | GSP | 41 min |
| Aug 4, 9:42 PM EDT | Flash Flood Warning | GSP | 4 hr |
| Aug 5, 1:48 AM EDT | Areal Flood Warning | GSP | 6 hr |
| Aug 6, 2:53 PM EDT | Flash Flood Watch | GSP | 55 hr |
| Aug 18, 12:20 PM EDT | Special Weather Statement | GSP | 25 min |
| Aug 27, 9:05 PM EDT | Special Weather Statement | GSP | 25 min |
| Aug 28, 6:01 PM EDT | Special Weather Statement | GSP | 44 min |
| Aug 28, 6:13 PM EDT | Severe Thunderstorm Warning | GSP | 31 min |
| Oct 9, 3:56 AM EDT | Wind Advisory | GSP | 14 hr |
| Oct 22, 4:34 AM EDT | Frost Advisory | GSP | 28 hr |
| Nov 4, 2:15 PM EDT | Frost Advisory | GSP | 19 hr |
| Nov 5, 2:48 PM EDT | Frost Advisory | GSP | 18 hr |
| Nov 6, 2:14 PM EST | Frost Advisory | GSP | 18 hr |
| Nov 7, 2:42 PM EST | Frost Advisory | GSP | 18 hr |
| Nov 9, 2:40 PM EST | Frost Advisory | GSP | 18 hr |
| Nov 9, 2:40 PM EST | Freeze Warning | GSP | 18 hr |
| Nov 18, 3:22 PM EST | Red Flag Warning | GSP | 33 hr |
| Nov 19, 3:40 AM EST | Wind Advisory | GSP | 51 hr |
| Nov 25, 6:43 AM EST | Dense Fog Advisory | GSP | 3 hr |
| Nov 28, 3:59 AM EST | Wind Advisory | GSP | 27 hr |
| Nov 28, 2:28 PM EST | High Wind Warning | GSP | 17 hr |
| Nov 29, 2:10 PM EST | Wind Advisory | GSP | 29 hr |
| Nov 30, 6:10 AM EST | Mesoscale Discussion | SPC | 95 min |
| Nov 30, 7:47 AM EST | Special Weather Statement | GSP | 73 min |
| Nov 30, 1:28 PM EST | Special Weather Statement | GSP | 32 min |
| Dec 11, 9:55 AM EST | Wind Advisory | GSP | 24 hr |
| Dec 16, 3:43 AM EST | Wind Advisory | GSP | 54 hr |
| Dec 18, 6:39 AM EST | Special Weather Statement | GSP | 51 min |
| Dec 25, 5:53 AM EST | Dense Fog Advisory | GSP | 4 hr |
| Dec 28, 2:21 AM EST | Dense Fog Advisory | GSP | 8 hr |
| Dec 28, 2:30 PM EST | Wind Advisory | GSP | 52 hr |
| Dec 28, 11:15 PM EST | Special Weather Statement | GSP | 60 min |
| Dec 28, 11:19 PM EST | Special Weather Statement | GSP | 56 min |
| Dec 29, 3:43 AM EST | Winter Weather Advisory | GSP | 32 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 archive20152017
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.