Alert archive / West Virginia / Clay County
Weather alerts in Clay County, West Virginia, 2017
73 weather alerts in 2017, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Clay County and its neighbors
Each county as a circle sized by its count in 2017. Tap one for its archive.
- Alerts
- 73
- Warnings
- 7
- Watches
- 12
- Advisories
- 10
- Busiest month
- July17 alerts
- Busiest day
- July 22, 20177 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Clay County, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 4 | 4 | 0% | 0 | ||
| Flash flood warnings | 1 | 1 | 0% | 0 |
Each office's whole area, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Charleston, WV: tornado warnings | 19 | 3 | 84% | 8 | 50% | 6 min |
| NWS Charleston, WV: severe thunderstorm warnings | 112 | 81 | 28% | 264 | 67% | 18 min |
| NWS Charleston, WV: flash flood warnings | 56 | 37 | 34% | 113 | 88% | 108 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 4, 3:10 PM EST | Winter Weather Advisory | RLX | 37 hr |
| Jan 23, 2:30 PM EST | Special Weather Statement | RLX | 60 min |
| Jan 28, 3:05 PM EST | Winter Weather Advisory | RLX | 45 hr |
| Feb 28, 11:28 AM EST | Flash Flood Watch | RLX | 28 hr |
| Mar 1, 2:32 AM EST | Mesoscale Discussion | SPC | 88 min |
| Mar 1, 6:48 AM EST | Severe Thunderstorm Watch | SPC | 5 hr |
| Mar 1, 8:28 AM EST | Mesoscale Discussion | SPC | 92 min |
| Mar 1, 9:41 AM EST | Severe Thunderstorm Warning | RLX | 34 min |
| Mar 1, 10:16 AM EST | Severe Thunderstorm Warning | RLX | 29 min |
| Mar 1, 11:34 PM EST | Special Weather Statement | RLX | 3 hr |
| Mar 7, 10:29 PM EST | Special Weather Statement | RLX | 31 min |
| Mar 7, 10:55 PM EST | Special Weather Statement | RLX | 50 min |
| Mar 17, 9:03 AM EDT | Freezing Rain Advisory | RLX | 3 hr |
| Mar 18, 10:58 AM EDT | Special Weather Statement | RLX | 32 min |
| Mar 18, 1:32 PM EDT | Special Weather Statement | RLX | 28 min |
| Mar 18, 1:56 PM EDT | Special Weather Statement | RLX | 34 min |
| Mar 18, 2:31 PM EDT | Special Weather Statement | RLX | 44 min |
| Mar 22, 10:08 AM EDT | Special Weather Statement | RLX | 7 min |
| Mar 26, 3:00 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 5, 10:35 PM EDT | Special Weather Statement | RLX | 55 min |
| Apr 7, 3:42 AM EDT | Freeze Warning | RLX | 29 hr |
| Apr 20, 2:16 PM EDT | Special Weather Statement | RLX | 44 min |
| Apr 28, 11:19 PM EDT | Mesoscale Discussion | SPC | 116 min |
| May 1, 11:59 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 2, 4:40 AM EDT | Wind Advisory | RLX | 13 hr |
| May 5, 3:54 PM EDT | Special Weather Statement | RLX | 36 min |
| May 7, 2:44 AM EDT | Frost Advisory | RLX | 30 hr |
| May 11, 4:59 AM EDT | Flash Flood Watch | RLX | 42 hr |
| May 12, 3:02 PM EDT | Special Weather Statement | RLX | 4 hr |
| May 12, 3:03 PM EDT | Special Weather Statement | RLX | 4 hr |
| May 19, 9:53 PM EDT | Special Weather Statement | RLX | 67 min |
| May 25, 2:56 AM EDT | Flash Flood Watch | RLX | 17 hr |
| May 27, 4:14 AM EDT | Flash Flood Watch | RLX | 39 hr |
| May 27, 4:11 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 27, 7:15 PM EDT | Special Weather Statement | RLX | 30 min |
| May 27, 8:07 PM EDT | Mesoscale Discussion | SPC | 83 min |
| May 31, 12:03 PM EDT | Severe Thunderstorm Warning | RLX | 42 min |
| Jun 13, 8:37 AM EDT | Special Weather Statement | RLX | 113 min |
| Jun 13, 10:09 AM EDT | Flash Flood Watch | RLX | 8 hr |
| Jun 13, 12:18 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 14, 2:20 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 16, 10:42 AM EDT | Special Weather Statement | RLX | 48 min |
| Jun 19, 7:30 AM EDT | Special Weather Statement | RLX | 30 min |
| Jun 19, 8:02 AM EDT | Special Weather Statement | RLX | 43 min |
| Jun 22, 12:17 PM EDT | Flash Flood Watch | RLX | 40 hr |
| Jun 23, 9:19 PM EDT | Special Weather Statement | RLX | 116 min |
| Jun 23, 9:41 PM EDT | Flash Flood Warning | RLX | 3 hr |
| Jul 6, 10:03 AM EDT | Flash Flood Watch | RLX | 12 hr |
| Jul 7, 1:07 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Jul 7, 3:35 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Jul 7, 6:34 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Jul 7, 10:01 PM EDT | Special Weather Statement | RLX | 59 min |
| Jul 21, 11:03 AM EDT | Mesoscale Discussion | SPC | 57 min |
| Jul 21, 11:56 AM EDT | Special Weather Statement | RLX | 34 min |
| Jul 21, 12:28 PM EDT | Special Weather Statement | RLX | 32 min |
| Jul 22, 2:04 AM EDT | Special Weather Statement | RLX | 26 min |
| Jul 22, 2:30 AM EDT | Special Weather Statement | RLX | 30 min |
| Jul 22, 11:59 AM EDT | Flash Flood Watch | RLX | 28 hr |
| Jul 22, 1:51 PM EDT | Special Weather Statement | RLX | 24 min |
| Jul 22, 3:18 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 22, 3:54 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 22, 7:37 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Jul 22, 9:00 PM EDT | Severe Thunderstorm Warning | RLX | 45 min |
| Jul 27, 1:37 PM EDT | Flash Flood Watch | RLX | 30 hr |
| Aug 4, 11:38 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 15, 7:36 PM EDT | Special Weather Statement | RLX | 54 min |
| Oct 16, 11:10 AM EDT | Frost Advisory | RLX | 23 hr |
| Oct 17, 2:34 PM EDT | Frost Advisory | RLX | 18 hr |
| Oct 25, 3:26 AM EDT | Frost Advisory | RLX | 31 hr |
| Oct 26, 2:43 PM EDT | Frost Advisory | RLX | 18 hr |
| Oct 29, 2:44 PM EDT | Freeze Warning | RLX | 19 hr |
| Nov 18, 9:27 PM EST | Special Weather Statement | RLX | 48 min |
| Dec 29, 1:50 PM EST | Winter Weather Advisory | RLX | 27 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 | 4 |
| Severe Thunderstorm Watch | 3 |
| Mesoscale Discussion | 15 |
| Special Weather Statement | 29 |
| Flooding | |
| Flash Flood Warning | 1 |
| Flash Flood Watch | 9 |
| Winter | |
| Freezing Rain Advisory | 1 |
| Winter Weather Advisory | 3 |
| Cold | |
| Freeze Warning | 2 |
| Frost Advisory | 5 |
| Wind and dust | |
| Wind Advisory | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20162018
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.