Alert archive / West Virginia / Mason County
Weather alerts in Mason County, West Virginia, 2018
113 weather alerts in 2018, 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 2018. Tap one for its archive.
- Alerts
- 113
- Warnings
- 43
- Watches
- 17
- Advisories
- 19
- Busiest month
- February21 alerts
- Busiest day
- February 16, 20186 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Mason County, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 10 | 8 | 20% | 8 | 88% | 18 min |
| Flash flood warnings | 2 | 1 | 50% | 0 |
Each office's whole area, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Charleston, WV: tornado warnings | 2 | 1 | 50% | 3 | 33% | 4 min |
| NWS Charleston, WV: severe thunderstorm warnings | 124 | 73 | 41% | 186 | 66% | 16 min |
| NWS Charleston, WV: flash flood warnings | 80 | 48 | 40% | 163 | 74% | 60 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 7, 3:45 AM EST | Winter Weather Advisory | RLX | 43 hr |
| Jan 11, 11:21 AM EST | Flood Watch | RLX | 23 hr |
| Jan 11, 4:40 PM EST | Winter Weather Advisory | RLX | 41 hr |
| Jan 12, 7:04 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 15, 5:43 AM EST | Winter Weather Advisory | RLX | 48 hr |
| Feb 5, 8:16 PM EST | Winter Weather Advisory | RLX | 18 hr |
| Feb 6, 4:23 AM EST | Winter Weather Advisory | RLX | 33 hr |
| Feb 6, 10:36 AM EST | Flood Watch | RLX | 26 hr |
| Feb 6, 10:42 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 7, 9:21 AM EST | Special Weather Statement | RLX | 54 min |
| Feb 7, 10:07 AM EST | Areal Flood Warning | RLX | 9 hr |
| Feb 9, 2:56 AM EST | Flood Watch | RLX | 59 hr |
| Feb 13, 2:13 PM EST | Flood Watch | RLX | 3 days |
| Feb 16, 7:26 AM EST | Areal Flood Warning | RLX | 12 hr |
| Feb 16, 9:34 AM EST | Areal Flood Warning | RLX | 15 hr |
| Feb 16, 11:24 AM EST | River Flood Warning | RLX | 4 days |
| Feb 16, 11:24 AM EST | River Flood Warning | RLX | 4 days |
| Feb 16, 11:24 AM EST | River Flood Warning | RLX | 5 days |
| Feb 16, 11:24 AM EST | River Flood Warning | RLX | 4 days |
| Feb 16, 9:17 PM EST | Winter Weather Advisory | RLX | 31 hr |
| Feb 21, 3:06 PM EST | Flood Watch | RLX | 4 days |
| Feb 23, 8:17 AM EST | Special Weather Statement | RLX | 58 min |
| Feb 24, 11:23 AM EST | Special Weather Statement | RLX | 112 min |
| Feb 24, 11:37 AM EST | Areal Flood Warning | RLX | 6 hr |
| Feb 25, 8:03 AM EST | Special Weather Statement | RLX | 4 hr |
| Feb 25, 10:02 AM EST | River Flood Warning | RLX | 4 days |
| Mar 1, 3:27 AM EST | Wind Advisory | RLX | 35 hr |
| Mar 6, 10:00 AM EST | Special Weather Statement | RLX | 15 min |
| Mar 8, 10:24 AM EST | Special Weather Statement | RLX | 2 hr |
| Mar 13, 5:26 PM EDT | Special Weather Statement | RLX | 49 min |
| Mar 16, 3:56 AM EDT | Winter Weather Advisory | RLX | 33 hr |
| Mar 19, 3:39 PM EDT | Winter Weather Advisory | RLX | 55 hr |
| Mar 27, 1:32 PM EDT | Flood Watch | RLX | 68 hr |
| Apr 3, 2:24 PM EDT | Flash Flood Watch | RLX | 13 hr |
| Apr 3, 6:38 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 3, 7:07 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 3, 8:15 PM EDT | Severe Thunderstorm Warning | RLX | 45 min |
| Apr 3, 8:42 PM EDT | Severe Thunderstorm Warning | RLX | 33 min |
| Apr 4, 10:59 AM EDT | River Flood Warning | RLX | 3 days |
| Apr 4, 10:59 AM EDT | River Flood Warning | RLX | 3 days |
| Apr 4, 1:56 PM EDT | River Flood Warning | RLX | 63 hr |
| Apr 5, 4:11 AM EDT | Winter Storm Watch | RLX | 24 hr |
| Apr 11, 11:27 AM EDT | Fire Weather Watch | RLX | 33 hr |
| Apr 12, 3:58 AM EDT | Red Flag Warning | RLX | 16 hr |
| Apr 13, 8:49 AM EDT | Red Flag Warning | RLX | 11 hr |
| Apr 16, 3:03 AM EDT | Freeze Warning | RLX | 31 hr |
| Apr 17, 11:24 AM EDT | River Flood Warning | RLX | 48 hr |
| Apr 17, 4:58 PM EDT | Freeze Warning | RLX | 16 hr |
| Apr 18, 10:38 PM EDT | Special Weather Statement | RLX | 37 min |
| Apr 18, 11:18 PM EDT | Special Weather Statement | RLX | 42 min |
| Apr 19, 3:05 AM EDT | Freeze Warning | RLX | 31 hr |
| Apr 20, 2:13 PM EDT | Freeze Warning | RLX | 20 hr |
| Apr 28, 3:08 AM EDT | Frost Advisory | RLX | 30 hr |
| Apr 29, 9:39 AM EDT | Freeze Warning | RLX | 23 hr |
| May 21, 3:30 PM EDT | Mesoscale Discussion | SPC | 60 min |
| May 21, 5:14 PM EDT | Severe Thunderstorm Warning | RLX | 31 min |
| May 26, 7:15 PM EDT | Special Weather Statement | RLX | 3 hr |
| May 28, 4:53 PM EDT | Special Weather Statement | RLX | 37 min |
| May 28, 5:30 PM EDT | Special Weather Statement | RLX | 45 min |
| May 30, 5:14 PM EDT | Special Weather Statement | RLX | 31 min |
| May 30, 5:40 PM EDT | Severe Thunderstorm Warning | RLX | 35 min |
| May 31, 4:10 PM EDT | Severe Thunderstorm Warning | RLX | 20 min |
| May 31, 5:57 PM EDT | Special Weather Statement | RLX | 33 min |
| May 31, 6:32 PM EDT | Special Weather Statement | RLX | 43 min |
| Jun 13, 9:19 PM EDT | Special Weather Statement | RLX | 41 min |
| Jun 17, 5:49 PM EDT | Special Weather Statement | RLX | 26 min |
| Jun 17, 6:20 PM EDT | Special Weather Statement | RLX | 25 min |
| Jun 18, 2:44 AM EDT | Heat Advisory | RLX | 17 hr |
| Jun 21, 3:41 AM EDT | Flash Flood Watch | RLX | 46 hr |
| Jun 22, 7:49 PM EDT | Flash Flood Warning | RLX | 10 hr |
| Jun 23, 5:18 AM EDT | Areal Flood Warning | RLX | 9 hr |
| Jul 1, 2:09 PM EDT | Heat Advisory | RLX | 6 hr |
| Jul 1, 5:39 PM EDT | Severe Thunderstorm Warning | RLX | 36 min |
| Jul 1, 6:06 PM EDT | Severe Thunderstorm Warning | RLX | 24 min |
| Jul 1, 6:13 PM EDT | Severe Thunderstorm Warning | RLX | 32 min |
| Jul 3, 4:15 AM EDT | Excessive Heat Watch | RLX | 10 hr |
| Jul 3, 4:15 AM EDT | Heat Advisory | RLX | 16 hr |
| Jul 3, 1:56 PM EDT | Excessive Heat Warning | RLX | 30 hr |
| Jul 5, 4:27 AM EDT | Heat Advisory | RLX | 14 hr |
| Jul 5, 10:32 AM EDT | Flash Flood Watch | RLX | 14 hr |
| Jul 20, 6:08 PM EDT | Special Weather Statement | RLX | 37 min |
| Jul 20, 7:24 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Jul 31, 2:10 PM EDT | Severe Thunderstorm Warning | RLX | 35 min |
| Aug 26, 6:04 PM EDT | Special Weather Statement | RLX | 26 min |
| Sep 4, 3:02 AM EDT | Heat Advisory | RLX | 16 hr |
| Sep 7, 8:02 PM EDT | Flash Flood Warning | RLX | 93 min |
| Sep 8, 3:34 AM EDT | Flood Watch | RLX | 49 hr |
| Sep 9, 9:43 AM EDT | Areal Flood Warning | RLX | 21 hr |
| Sep 9, 1:34 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Sep 9, 5:10 PM EDT | Areal Flood Warning | RLX | 6 hr |
| Sep 9, 5:21 PM EDT | Areal Flood Warning | RLX | 6 hr |
| Sep 9, 11:16 PM EDT | Areal Flood Warning | RLX | 6 hr |
| Sep 11, 1:33 PM EDT | River Flood Warning | RLX | 47 hr |
| Sep 22, 3:09 PM EDT | Flash Flood Watch | RLX | 4 days |
| Oct 17, 3:18 AM EDT | Frost Advisory | RLX | 31 hr |
| Oct 18, 2:02 PM EDT | Freeze Warning | RLX | 20 hr |
| Oct 20, 3:49 PM EDT | Wind Advisory | RLX | 14 hr |
| Oct 28, 3:16 PM EDT | Special Weather Statement | RLX | 29 min |
| Oct 28, 6:35 PM EDT | Severe Thunderstorm Warning | RLX | 25 min |
| Nov 2, 12:01 AM EDT | Special Weather Statement | RLX | 29 min |
| Nov 14, 3:51 AM EST | Winter Weather Advisory | RLX | 31 hr |
| Nov 15, 3:18 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Nov 15, 6:12 AM EST | Winter Weather Advisory | RLX | 3 hr |
| Nov 27, 4:18 PM EST | Special Weather Statement | RLX | 117 min |
| Nov 27, 7:03 PM EST | Special Weather Statement | RLX | 3 hr |
| Dec 15, 10:47 AM EST | Flood Watch | RLX | 23 hr |
| Dec 20, 11:10 AM EST | Flood Watch | RLX | 31 hr |
| Dec 20, 7:22 PM EST | Areal Flood Warning | RLX | 3 hr |
| Dec 20, 8:14 PM EST | Areal Flood Warning | RLX | 39 hr |
| Dec 21, 11:08 AM EST | Special Weather Statement | RLX | 3 hr |
| Dec 21, 2:12 PM EST | Special Weather Statement | RLX | 3 hr |
| Dec 21, 2:19 PM EST | Special Weather Statement | RLX | 3 hr |
| Dec 22, 11:48 AM EST | River Flood Warning | RLX | 53 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 | 10 |
| Severe Thunderstorm Watch | 1 |
| Mesoscale Discussion | 7 |
| Special Weather Statement | 27 |
| Flooding | |
| Areal Flood Warning | 11 |
| Flash Flood Warning | 2 |
| River Flood Warning | 11 |
| Flash Flood Watch | 4 |
| Flood Watch | 9 |
| Winter | |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 10 |
| Heat | |
| Excessive Heat Warning | 1 |
| Excessive Heat Watch | 1 |
| Heat Advisory | 5 |
| Cold | |
| Freeze Warning | 6 |
| Frost Advisory | 2 |
| Wind and dust | |
| Wind Advisory | 2 |
| Fire | |
| Red Flag Warning | 2 |
| Fire Weather Watch | 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.