Alert archive / West Virginia / Mason County
Weather alerts in Mason County, West Virginia, 2017
114 weather alerts in 2017, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Mason County and its neighbors
Each county as a circle sized by its count in 2017. Tap one for its archive.
- Alerts
- 114
- Warnings
- 27
- Watches
- 14
- Advisories
- 11
- Busiest month
- March25 alerts
- Busiest day
- March 1, 201714 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
1 of 4 tornado warnings covering Mason County in 2017 had a tornado report inside them.
Mason County, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 4 | 1 | 75% | 0 | ||
| Severe thunderstorm warnings | 13 | 10 | 23% | 8 | 100% | 29 min |
| Flash flood warnings | 6 | 6 | 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 10, 9:45 PM EST | Wind Advisory | RLX | 3 hr |
| Feb 20, 1:14 AM EST | Dense Fog Advisory | RLX | 10 hr |
| Feb 24, 8:49 PM EST | Mesoscale Discussion | SPC | 116 min |
| Feb 25, 1:04 AM EST | Severe Thunderstorm Warning | RLX | 25 min |
| Feb 25, 2:26 AM EST | Special Weather Statement | RLX | 34 min |
| Feb 25, 3:00 AM EST | Special Weather Statement | RLX | 30 min |
| 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, 5:30 AM EST | Special Weather Statement | RLX | 30 min |
| Mar 1, 5:44 AM EST | Severe Thunderstorm Warning | RLX | 31 min |
| Mar 1, 6:28 AM EST | Mesoscale Discussion | SPC | 2 hr |
| Mar 1, 6:44 AM EST | Severe Thunderstorm Warning | RLX | 31 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, 8:47 AM EST | Severe Thunderstorm Warning | RLX | 28 min |
| Mar 1, 8:58 AM EST | Tornado Warning | RLX | 32 min |
| Mar 1, 9:07 AM EST | Flash Flood Warning | RLX | 5 hr |
| Mar 1, 9:16 AM EST | Severe Thunderstorm Warning | RLX | 29 min |
| Mar 1, 9:33 AM EST | Tornado Warning | RLX | 27 min |
| Mar 1, 11:33 AM EST | Areal Flood Warning | RLX | 3 hr |
| Mar 1, 3:56 PM EST | Mesoscale Discussion | SPC | 2 hr |
| Mar 1, 11:34 PM EST | Special Weather Statement | RLX | 3 hr |
| Mar 17, 9:03 AM EDT | Freezing Rain Advisory | RLX | 3 hr |
| Mar 18, 12:25 PM EDT | Special Weather Statement | RLX | 35 min |
| Mar 22, 10:08 AM EDT | Special Weather Statement | RLX | 7 min |
| Mar 26, 3:00 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 26, 3:39 PM EDT | Special Weather Statement | RLX | 36 min |
| Mar 31, 8:38 AM EDT | Special Weather Statement | RLX | 3 hr |
| Mar 31, 8:42 AM EDT | Special Weather Statement | RLX | 3 hr |
| Mar 31, 11:33 AM EDT | Special Weather Statement | RLX | 117 min |
| Mar 31, 1:32 PM EDT | Special Weather Statement | RLX | 118 min |
| Mar 31, 3:23 PM EDT | Special Weather Statement | RLX | 5 hr |
| Apr 5, 7:19 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 5, 9:24 PM EDT | Special Weather Statement | RLX | 66 min |
| Apr 7, 3:42 AM EDT | Freeze Warning | RLX | 29 hr |
| Apr 11, 5:00 PM EDT | Severe Thunderstorm Warning | RLX | 30 min |
| Apr 27, 3:28 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 28, 11:19 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Apr 28, 11:55 PM EDT | Severe Thunderstorm Warning | RLX | 35 min |
| Apr 29, 12:28 AM EDT | Severe Thunderstorm Warning | RLX | 32 min |
| Apr 29, 2:14 AM EDT | Special Weather Statement | RLX | 46 min |
| Apr 29, 4:01 AM EDT | Special Weather Statement | RLX | 44 min |
| Apr 30, 2:58 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 1, 11:28 AM EDT | Severe Thunderstorm Warning | RLX | 32 min |
| May 2, 4:40 AM EDT | Wind Advisory | RLX | 13 hr |
| May 7, 2:44 AM EDT | Frost Advisory | RLX | 30 hr |
| May 19, 3:13 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 19, 5:50 PM EDT | Mesoscale Discussion | SPC | 55 min |
| May 19, 7:43 PM EDT | Special Weather Statement | RLX | 32 min |
| May 19, 8:22 PM EDT | Special Weather Statement | RLX | 53 min |
| May 27, 4:14 AM EDT | Flash Flood Watch | RLX | 39 hr |
| May 27, 1:50 PM EDT | Mesoscale Discussion | SPC | 85 min |
| May 27, 4:11 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 27, 7:28 PM EDT | Flash Flood Warning | RLX | 3 hr |
| May 27, 8:07 PM EDT | Mesoscale Discussion | SPC | 83 min |
| May 31, 2:05 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Jun 5, 3:00 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| 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 18, 7:44 PM EDT | Special Weather Statement | RLX | 76 min |
| Jun 22, 12:17 PM EDT | Flash Flood Watch | RLX | 40 hr |
| Jun 23, 1:15 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 23, 2:20 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 23, 4:53 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 23, 6:20 PM EDT | Tornado Warning | RLX | 25 min |
| Jun 23, 7:31 PM EDT | Flash Flood Warning | RLX | 10 hr |
| Jun 23, 7:37 PM EDT | Special Weather Statement | RLX | 113 min |
| Jun 23, 8:00 PM EDT | Flash Flood Warning | RLX | 7 hr |
| Jun 23, 8:26 PM EDT | Flash Flood Warning | RLX | 4 hr |
| Jul 7, 1:07 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Jul 7, 1:27 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 7, 3:35 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Jul 7, 6:34 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Jul 7, 7:47 PM EDT | Severe Thunderstorm Warning | RLX | 58 min |
| Jul 7, 8:46 PM EDT | Severe Thunderstorm Warning | RLX | 44 min |
| Jul 10, 3:08 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 10, 7:30 PM EDT | Severe Thunderstorm Warning | RLX | 47 min |
| Jul 10, 7:39 PM EDT | Tornado Warning | RLX | 36 min |
| Jul 11, 10:26 PM EDT | Special Weather Statement | RLX | 64 min |
| Jul 13, 9:22 AM EDT | Flash Flood Watch | RLX | 33 hr |
| Jul 14, 3:19 PM EDT | Special Weather Statement | RLX | 26 min |
| Jul 14, 9:45 PM EDT | Special Weather Statement | RLX | 60 min |
| Jul 20, 2:27 PM EDT | Heat Advisory | RLX | 22 hr |
| Jul 21, 10:32 AM EDT | Special Weather Statement | RLX | 28 min |
| Jul 21, 11:02 AM EDT | Special Weather Statement | RLX | 28 min |
| Jul 21, 11:03 AM EDT | Mesoscale Discussion | SPC | 57 min |
| Jul 22, 12:27 AM EDT | Special Weather Statement | RLX | 33 min |
| Jul 22, 12:49 AM EDT | Special Weather Statement | RLX | 26 min |
| Jul 22, 11:59 AM EDT | Flash Flood Watch | RLX | 28 hr |
| 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 27, 1:37 PM EDT | Flash Flood Watch | RLX | 30 hr |
| Jul 28, 2:31 PM EDT | Flash Flood Warning | RLX | 3 hr |
| Aug 2, 6:33 PM EDT | Special Weather Statement | RLX | 27 min |
| Aug 2, 6:58 PM EDT | Special Weather Statement | RLX | 32 min |
| Aug 4, 11:38 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 17, 12:59 PM EDT | Special Weather Statement | RLX | 31 min |
| Aug 22, 11:54 AM EDT | Mesoscale Discussion | SPC | 66 min |
| Aug 22, 12:39 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 22, 2:44 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Aug 22, 3:03 PM EDT | Severe Thunderstorm Warning | RLX | 27 min |
| Aug 22, 4:39 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Sep 5, 4:22 AM EDT | Special Weather Statement | RLX | 23 min |
| Sep 5, 5:50 AM EDT | Special Weather Statement | RLX | 55 min |
| Oct 15, 6:04 PM EDT | Special Weather Statement | RLX | 56 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 | Freeze Warning | 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 |
| 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 | 13 |
| Tornado Warning | 4 |
| Severe Thunderstorm Watch | 7 |
| Mesoscale Discussion | 30 |
| Special Weather Statement | 32 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 6 |
| Flash Flood Watch | 7 |
| Winter | |
| Freezing Rain Advisory | 1 |
| Winter Weather Advisory | 2 |
| Heat | |
| Heat Advisory | 1 |
| Cold | |
| Freeze Warning | 3 |
| Frost Advisory | 4 |
| Wind and dust | |
| Wind Advisory | 2 |
| 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 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.