Alert archive / North Carolina / Madison County
Weather alerts in Madison County, North Carolina, 2018
118 weather alerts in 2018, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Madison County and its neighbors
Each county as a circle sized by its count in 2018. Tap one for its archive.
- Alerts
- 118
- Warnings
- 20
- Watches
- 14
- Advisories
- 44
- Busiest month
- June23 alerts
- Busiest day
- June 24, 20185 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Madison County, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 9 | 8 | 11% | 4 | 100% | 17 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Greenville-Spartanburg, SC: tornado warnings | 7 | 1 | 86% | 3 | 67% | 5 min |
| NWS Greenville-Spartanburg, SC: severe thunderstorm warnings | 347 | 244 | 30% | 600 | 87% | 20 min |
| NWS Greenville-Spartanburg, SC: flash flood warnings | 74 | 53 | 28% | 177 | 83% | 159 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, 2:31 AM EST | Wind Chill Advisory | GSP | 31 hr |
| Jan 3, 3:47 AM EST | Wind Chill Advisory | GSP | 48 hr |
| Jan 4, 3:29 AM EST | Wind Chill Advisory | GSP | 33 hr |
| Jan 5, 3:57 AM EST | Wind Chill Advisory | GSP | 31 hr |
| Jan 7, 2:51 PM EST | Winter Weather Advisory | GSP | 24 hr |
| Jan 15, 3:32 PM EST | Winter Weather Advisory | GSP | 4 days |
| Jan 17, 4:27 AM EST | Wind Chill Advisory | GSP | 30 hr |
| Jan 22, 2:52 AM EST | Wind Advisory | GSP | 25 hr |
| Jan 28, 3:23 PM EST | Winter Weather Advisory | GSP | 43 hr |
| Jan 30, 10:07 AM EST | Winter Weather Advisory | GSP | 113 min |
| Feb 1, 4:08 AM EST | Winter Weather Advisory | GSP | 29 hr |
| Feb 3, 3:28 AM EST | Winter Weather Advisory | GSP | 33 hr |
| Feb 9, 3:46 AM EST | Flood Watch | GSP | 3 days |
| Feb 25, 5:42 AM EST | Special Weather Statement | GSP | 63 min |
| Feb 28, 2:55 PM EST | High Wind Watch | GSP | 13 hr |
| Mar 1, 4:10 AM EST | High Wind Warning | GSP | 48 hr |
| Mar 11, 4:02 AM EDT | Winter Storm Warning | GSP | 40 hr |
| Mar 11, 4:02 AM EDT | Winter Weather Advisory | GSP | 54 hr |
| Mar 13, 3:27 AM EDT | Winter Weather Advisory | GSP | 33 hr |
| Mar 14, 3:01 PM EDT | Wind Advisory | GSP | 29 hr |
| Mar 17, 4:33 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Mar 17, 7:06 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Mar 17, 11:31 PM EDT | Special Weather Statement | GSP | 29 min |
| Mar 19, 3:55 PM EDT | Winter Storm Watch | GSP | 13 hr |
| Mar 20, 4:31 AM EDT | Winter Storm Warning | GSP | 45 hr |
| Mar 20, 5:32 AM EDT | Dense Fog Advisory | GSP | 4 hr |
| Mar 22, 1:14 AM EDT | Wind Advisory | GSP | 10 hr |
| Mar 23, 3:21 PM EDT | Winter Weather Advisory | GSP | 37 hr |
| Mar 24, 5:50 PM EDT | Special Weather Statement | GSP | 40 min |
| Apr 4, 2:00 AM EDT | Mesoscale Discussion | SPC | 105 min |
| Apr 4, 2:37 AM EDT | Special Weather Statement | GSP | 38 min |
| Apr 4, 3:09 AM EDT | Special Weather Statement | GSP | 51 min |
| Apr 10, 2:51 PM EDT | Frost Advisory | GSP | 18 hr |
| Apr 15, 3:38 AM EDT | Freeze Watch | GSP | 11 hr |
| Apr 16, 4:13 AM EDT | Freeze Warning | GSP | 29 hr |
| Apr 17, 12:28 AM EDT | Wind Advisory | GSP | 20 hr |
| Apr 18, 2:50 PM EDT | Freeze Watch | GSP | 13 hr |
| Apr 19, 4:12 AM EDT | Freeze Warning | GSP | 29 hr |
| Apr 20, 7:59 PM EDT | Frost Advisory | GSP | 13 hr |
| Apr 23, 3:36 AM EDT | Wind Advisory | GSP | 22 hr |
| Apr 29, 3:35 AM EDT | Frost Advisory | GSP | 29 hr |
| May 5, 4:05 PM EDT | Special Weather Statement | GSP | 40 min |
| May 15, 3:20 PM EDT | Special Weather Statement | GSP | 40 min |
| May 17, 11:51 PM EDT | Special Weather Statement | GSP | 84 min |
| May 18, 11:32 PM EDT | Areal Flood Advisory | GSP | 4 hr |
| May 19, 3:45 PM EDT | Areal Flood Advisory | GSP | 2 hr |
| May 19, 3:51 PM EDT | Special Weather Statement | GSP | 24 min |
| May 19, 11:43 PM EDT | Special Weather Statement | GSP | 32 min |
| May 27, 4:44 AM EDT | Flash Flood Watch | GSP | 5 days |
| May 27, 7:12 PM EDT | Special Weather Statement | GSP | 33 min |
| May 30, 3:17 AM EDT | River Flood Advisory | GSP | 5 hr |
| May 30, 8:56 AM EDT | River Flood Warning | GSP | 38 hr |
| May 31, 7:39 PM EDT | Special Weather Statement | GSP | 66 min |
| May 31, 8:12 PM EDT | Special Weather Statement | GSP | 48 min |
| May 31, 8:15 PM EDT | Severe Thunderstorm Warning | GSP | 45 min |
| Jun 3, 3:24 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Jun 3, 4:43 PM EDT | Special Weather Statement | GSP | 47 min |
| Jun 10, 5:03 PM EDT | Special Weather Statement | GSP | 27 min |
| Jun 10, 5:29 PM EDT | Special Weather Statement | GSP | 16 min |
| Jun 17, 2:16 PM EDT | Special Weather Statement | GSP | 29 min |
| Jun 17, 2:45 PM EDT | Severe Thunderstorm Warning | GSP | 33 min |
| Jun 23, 5:08 PM EDT | Special Weather Statement | GSP | 37 min |
| Jun 24, 3:37 PM EDT | Special Weather Statement | GSP | 23 min |
| Jun 24, 3:55 PM EDT | Special Weather Statement | MRX | 50 min |
| Jun 24, 3:58 PM EDT | Special Weather Statement | GSP | 32 min |
| Jun 24, 5:07 PM EDT | Severe Thunderstorm Warning | GSP | 38 min |
| Jun 24, 7:26 PM EDT | Special Weather Statement | GSP | 34 min |
| Jun 25, 12:29 PM EDT | Mesoscale Discussion | SPC | 61 min |
| Jun 25, 1:02 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 25, 2:45 PM EDT | Special Weather Statement | GSP | 30 min |
| Jun 25, 3:15 PM EDT | Special Weather Statement | GSP | 30 min |
| Jun 26, 5:12 PM EDT | Special Weather Statement | GSP | 33 min |
| Jun 26, 5:36 PM EDT | Severe Thunderstorm Warning | GSP | 39 min |
| Jun 26, 6:18 PM EDT | Severe Thunderstorm Warning | GSP | 42 min |
| Jun 26, 6:49 PM EDT | Severe Thunderstorm Warning | GSP | 41 min |
| Jun 27, 2:29 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 6, 4:27 PM EDT | Special Weather Statement | GSP | 33 min |
| Jul 20, 10:51 PM EDT | Severe Thunderstorm Warning | GSP | 54 min |
| Jul 20, 10:52 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Jul 21, 3:37 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 31, 3:58 AM EDT | Flash Flood Watch | GSP | 4 days |
| Aug 8, 3:59 PM EDT | Special Weather Statement | GSP | 46 min |
| Aug 8, 4:25 PM EDT | Severe Thunderstorm Warning | GSP | 65 min |
| Aug 30, 2:53 PM EDT | Severe Thunderstorm Warning | GSP | 26 min |
| Sep 1, 5:31 PM EDT | Special Weather Statement | GSP | 29 min |
| Sep 13, 3:09 PM EDT | Flash Flood Watch | GSP | 4 days |
| Sep 14, 5:36 PM EDT | Wind Advisory | GSP | 48 hr |
| Sep 16, 6:13 PM EDT | Wind Advisory | GSP | 6 hr |
| Sep 26, 2:50 PM EDT | Flash Flood Watch | GSP | 32 hr |
| Oct 11, 5:15 PM EDT | Wind Advisory | GSP | 11 hr |
| Oct 19, 3:13 PM EDT | Freeze Watch | GSP | 13 hr |
| Oct 20, 4:11 AM EDT | Freeze Warning | GSP | 30 hr |
| Oct 20, 4:11 AM EDT | Wind Advisory | GSP | 30 hr |
| Oct 21, 4:14 AM EDT | Freeze Warning | GSP | 30 hr |
| Oct 28, 10:42 AM EDT | Wind Advisory | GSP | 24 hr |
| Nov 1, 4:17 AM EDT | Wind Advisory | GSP | 22 hr |
| Nov 6, 2:40 AM EST | Mesoscale Discussion | SPC | 65 min |
| Nov 6, 5:52 AM EST | Special Weather Statement | GSP | 23 min |
| Nov 9, 2:51 PM EST | Wind Advisory | GSP | 22 hr |
| Nov 27, 3:56 AM EST | Wind Chill Advisory | GSP | 30 hr |
| Dec 4, 2:50 PM EST | Winter Weather Advisory | GSP | 27 hr |
| Dec 6, 4:05 PM EST | Winter Storm Watch | GSP | 24 hr |
| Dec 7, 4:20 AM EST | Winter Storm Warning | GSP | 3 days |
| Dec 8, 10:54 AM EST | Winter Weather Advisory | GSP | 3 days |
| Dec 8, 10:32 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Dec 9, 3:08 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Dec 9, 8:18 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Dec 11, 3:11 PM EST | Winter Weather Advisory | GSP | 21 hr |
| Dec 20, 3:43 PM EST | Winter Weather Advisory | GSP | 42 hr |
| Dec 26, 3:01 PM EST | Flood Watch | GSP | 52 hr |
| Dec 26, 3:05 PM EST | Wind Advisory | GSP | 42 hr |
| Dec 28, 7:39 AM EST | Areal Flood Advisory | GSP | 5 hr |
| Dec 28, 9:25 AM EST | River Flood Warning | GSP | 39 hr |
| Dec 28, 10:12 AM EST | River Flood Advisory | GSP | 24 hr |
| Dec 28, 12:14 PM EST | River Flood Warning | GSP | 10 hr |
| Dec 28, 12:33 PM EST | Areal Flood Advisory | GSP | 6 hr |
| Dec 29, 9:53 AM EST | River Flood Advisory | GSP | 6 hr |
| Dec 29, 11:23 PM EST | River Flood Advisory | 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 | 9 |
| Severe Thunderstorm Watch | 2 |
| Mesoscale Discussion | 11 |
| Special Weather Statement | 29 |
| Flooding | |
| River Flood Warning | 3 |
| Flash Flood Watch | 4 |
| Flood Watch | 2 |
| Areal Flood Advisory | 4 |
| River Flood Advisory | 4 |
| Winter | |
| Winter Storm Warning | 3 |
| Winter Storm Watch | 2 |
| Winter Weather Advisory | 13 |
| Cold | |
| Freeze Warning | 4 |
| Freeze Watch | 3 |
| Frost Advisory | 3 |
| Wind Chill Advisory | 6 |
| Wind and dust | |
| High Wind Warning | 1 |
| High Wind Watch | 1 |
| Wind Advisory | 13 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20172019
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.