Alert archive / West Virginia / Kanawha County
Weather alerts in Kanawha County, West Virginia, 2021
118 weather alerts in 2021, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Kanawha County and its neighbors
Each county as a circle sized by its count in 2021. Tap one for its archive.
- Alerts
- 118
- Warnings
- 52
- Watches
- 14
- Advisories
- 18
- Busiest month
- June24 alerts
- Busiest day
- June 13, 202110 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Kanawha County, 2021
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 20 | 12 | 40% | 22 | 55% | 19 min |
| Flash flood warnings | 12 | 8 | 33% | 12 | 25% | 42 min |
Each office's whole area, 2021
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Charleston, WV: tornado warnings | 4 | 0 | 100% | 1 | 0% | |
| NWS Charleston, WV: severe thunderstorm warnings | 127 | 74 | 42% | 221 | 62% | 20 min |
| NWS Charleston, WV: flash flood warnings | 117 | 56 | 52% | 202 | 71% | 85 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 16, 2:33 PM EST | Snow Squall Warning | RLX | 27 min |
| Jan 16, 4:36 PM EST | Snow Squall Warning | RLX | 24 min |
| Jan 16, 4:42 PM EST | Snow Squall Warning | RLX | 33 min |
| Jan 18, 6:03 AM EST | Snow Squall Warning | RLX | 27 min |
| Jan 18, 3:17 PM EST | Winter Weather Advisory | RLX | 21 hr |
| Jan 27, 3:40 AM EST | Winter Weather Advisory | RLX | 26 hr |
| Jan 30, 3:43 AM EST | Winter Weather Advisory | RLX | 4 days |
| Jan 30, 9:23 PM EST | Special Weather Statement | RLX | 37 min |
| Jan 30, 10:05 PM EST | Special Weather Statement | RLX | 55 min |
| Feb 6, 3:32 AM EST | Winter Weather Advisory | RLX | 32 hr |
| Feb 8, 3:02 PM EST | Winter Storm Watch | RLX | 37 hr |
| Feb 9, 3:01 PM EST | Winter Storm Warning | RLX | 60 hr |
| Feb 9, 3:01 PM EST | Winter Weather Advisory | RLX | 67 hr |
| Feb 12, 2:51 PM EST | Winter Weather Advisory | RLX | 40 hr |
| Feb 13, 3:05 PM EST | Winter Storm Watch | RLX | 13 hr |
| Feb 14, 4:13 AM EST | Ice Storm Warning | RLX | 50 hr |
| Feb 15, 2:15 PM EST | Winter Weather Advisory | RLX | 13 hr |
| Feb 16, 6:39 AM EST | Special Weather Statement | RLX | 111 min |
| Feb 16, 11:07 AM EST | Winter Storm Watch | RLX | 17 hr |
| Feb 17, 4:18 AM EST | Winter Storm Warning | RLX | 34 hr |
| Feb 17, 4:18 AM EST | Winter Weather Advisory | RLX | 54 hr |
| Feb 26, 4:09 PM EST | Flood Watch | RLX | 63 hr |
| Feb 27, 10:37 AM EST | River Flood Warning | RLX | 3 days |
| Feb 28, 8:09 AM EST | Areal Flood Warning | RLX | 5 hr |
| Feb 28, 8:46 AM EST | Areal Flood Warning | RLX | 5 hr |
| Feb 28, 1:17 PM EST | Areal Flood Warning | RLX | 47 hr |
| Feb 28, 4:25 PM EST | Areal Flood Warning | RLX | 38 hr |
| Mar 1, 5:49 AM EST | River Flood Warning | RLX | 13 hr |
| Mar 1, 5:52 AM EST | River Flood Warning | RLX | 20 hr |
| Mar 18, 2:25 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Mar 18, 2:48 PM EDT | Special Weather Statement | RLX | 27 min |
| Mar 18, 6:09 PM EDT | Severe Thunderstorm Warning | RLX | 36 min |
| Mar 18, 6:15 PM EDT | Severe Thunderstorm Warning | RLX | 30 min |
| Mar 18, 6:43 PM EDT | Severe Thunderstorm Warning | RLX | 29 min |
| Mar 18, 7:36 PM EDT | Special Weather Statement | RLX | 39 min |
| Mar 18, 8:08 PM EDT | Flash Flood Warning | RLX | 82 min |
| Mar 25, 3:51 AM EDT | Wind Advisory | RLX | 34 hr |
| Mar 30, 3:07 PM EDT | Freeze Watch | RLX | 23 hr |
| Mar 30, 3:07 PM EDT | Freeze Warning | RLX | 43 hr |
| Mar 31, 2:07 PM EDT | Freeze Warning | RLX | 45 hr |
| Apr 1, 11:00 AM EDT | Freeze Warning | RLX | 48 hr |
| Apr 3, 5:42 PM EDT | Frost Advisory | RLX | 15 hr |
| Apr 20, 3:55 AM EDT | Freeze Watch | RLX | 23 hr |
| Apr 21, 3:10 AM EDT | Freeze Warning | RLX | 31 hr |
| Apr 21, 1:36 PM EDT | Freeze Watch | RLX | 13 hr |
| Apr 22, 2:18 AM EDT | Freeze Warning | RLX | 31 hr |
| Apr 30, 1:04 PM EDT | Frost Advisory | RLX | 20 hr |
| May 3, 2:47 PM EDT | Mesoscale Discussion | SPC | 118 min |
| May 4, 2:35 PM EDT | Flash Flood Watch | RLX | 17 hr |
| May 12, 11:56 AM EDT | Frost Advisory | RLX | 21 hr |
| May 13, 2:40 PM EDT | Frost Advisory | RLX | 18 hr |
| May 28, 4:15 PM EDT | Special Weather Statement | RLX | 45 min |
| May 28, 10:23 PM EDT | Special Weather Statement | RLX | 37 min |
| Jun 3, 9:09 PM EDT | Special Weather Statement | RLX | 36 min |
| Jun 9, 2:20 PM EDT | Flash Flood Warning | RLX | 55 min |
| Jun 10, 9:59 AM EDT | Flash Flood Watch | RLX | 36 hr |
| Jun 10, 8:21 PM EDT | Flash Flood Warning | RLX | 2 hr |
| Jun 11, 3:56 PM EDT | Flash Flood Warning | RLX | 5 hr |
| Jun 11, 4:35 PM EDT | Special Weather Statement | RLX | 55 min |
| Jun 11, 4:52 PM EDT | Flash Flood Warning | RLX | 3 hr |
| Jun 13, 12:50 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 13, 3:26 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Jun 13, 4:31 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Jun 13, 5:34 PM EDT | Severe Thunderstorm Warning | RLX | 26 min |
| Jun 13, 5:57 PM EDT | Severe Thunderstorm Warning | RLX | 48 min |
| Jun 13, 6:18 PM EDT | Severe Thunderstorm Warning | RLX | 42 min |
| Jun 13, 6:36 PM EDT | Severe Thunderstorm Warning | RLX | 39 min |
| Jun 13, 6:49 PM EDT | Severe Thunderstorm Warning | RLX | 41 min |
| Jun 13, 7:08 PM EDT | Severe Thunderstorm Warning | RLX | 52 min |
| Jun 13, 7:34 PM EDT | Severe Thunderstorm Warning | RLX | 26 min |
| Jun 13, 8:00 PM EDT | Flash Flood Warning | RLX | 2 hr |
| Jun 21, 12:31 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 21, 12:34 PM EDT | Severe Thunderstorm Warning | RLX | 41 min |
| Jun 21, 12:57 PM EDT | Severe Thunderstorm Warning | RLX | 33 min |
| Jun 21, 1:25 PM EDT | Severe Thunderstorm Warning | RLX | 50 min |
| Jun 30, 12:05 PM EDT | Special Weather Statement | RLX | 25 min |
| Jun 30, 2:09 PM EDT | Flash Flood Watch | RLX | 39 hr |
| Jul 1, 3:15 PM EDT | Special Weather Statement | RLX | 30 min |
| Jul 10, 1:27 PM EDT | Special Weather Statement | RLX | 48 min |
| Jul 10, 2:32 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Aug 9, 4:57 PM EDT | Severe Thunderstorm Warning | RLX | 33 min |
| Aug 9, 5:39 PM EDT | Special Weather Statement | RLX | 36 min |
| Aug 11, 8:51 AM EDT | Flash Flood Warning | RLX | 5 hr |
| Aug 11, 10:23 AM EDT | Special Weather Statement | RLX | 37 min |
| Aug 11, 1:47 PM EDT | Heat Advisory | RLX | 30 hr |
| Aug 13, 2:48 AM EDT | Heat Advisory | RLX | 14 hr |
| Aug 13, 1:13 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 13, 2:03 PM EDT | Severe Thunderstorm Warning | RLX | 27 min |
| Aug 13, 2:35 PM EDT | Severe Thunderstorm Warning | RLX | 40 min |
| Aug 13, 2:55 PM EDT | Severe Thunderstorm Warning | RLX | 22 min |
| Aug 14, 8:54 PM EDT | Flash Flood Warning | RLX | 2 hr |
| Aug 15, 9:21 AM EDT | Special Weather Statement | RLX | 84 min |
| Aug 15, 9:58 AM EDT | Flash Flood Warning | RLX | 3 hr |
| Aug 15, 7:47 PM EDT | Special Weather Statement | RLX | 28 min |
| Aug 15, 7:59 PM EDT | Severe Thunderstorm Warning | RLX | 31 min |
| Aug 17, 2:56 AM EDT | Flash Flood Watch | RLX | 33 hr |
| Aug 20, 1:00 AM EDT | Dense Fog Advisory | RLX | 9 hr |
| Aug 24, 11:22 AM EDT | Heat Advisory | RLX | 8 hr |
| Aug 25, 11:19 AM EDT | Heat Advisory | RLX | 7 hr |
| Aug 29, 3:57 PM EDT | Special Weather Statement | RLX | 33 min |
| Aug 29, 4:03 PM EDT | Severe Thunderstorm Warning | RLX | 27 min |
| Aug 30, 3:48 AM EDT | Flash Flood Watch | RLX | 58 hr |
| Sep 1, 6:22 AM EDT | Flash Flood Warning | RLX | 3 hr |
| Sep 1, 7:28 AM EDT | Flash Flood Warning | RLX | 4 hr |
| Sep 22, 1:09 PM EDT | Special Weather Statement | RLX | 51 min |
| Oct 8, 2:39 PM EDT | Special Weather Statement | RLX | 36 min |
| Oct 8, 8:33 PM EDT | Special Weather Statement | RLX | 27 min |
| Oct 8, 9:00 PM EDT | Flash Flood Warning | RLX | 3 hr |
| Oct 25, 5:46 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Oct 25, 7:47 PM EDT | Special Weather Statement | RLX | 28 min |
| Nov 2, 3:10 AM EDT | Freeze Warning | RLX | 31 hr |
| Dec 11, 8:42 AM EST | Special Weather Statement | RLX | 33 min |
| Dec 11, 9:20 AM EST | Special Weather Statement | RLX | 25 min |
| Dec 11, 2:38 PM EST | Special Weather Statement | RLX | 67 min |
| Dec 25, 6:31 PM EST | Special Weather Statement | RLX | 44 min |
| Dec 25, 7:48 PM EST | Special Weather Statement | RLX | 42 min |
| Dec 25, 8:12 PM EST | Severe Thunderstorm Warning | RLX | 48 min |
| Dec 28, 10:19 PM EST | Special Weather Statement | RLX | 26 min |
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 | 20 |
| Severe Thunderstorm Watch | 2 |
| Mesoscale Discussion | 7 |
| Special Weather Statement | 27 |
| Flooding | |
| Areal Flood Warning | 4 |
| Flash Flood Warning | 12 |
| River Flood Warning | 3 |
| Flash Flood Watch | 5 |
| Flood Watch | 1 |
| Winter | |
| Ice Storm Warning | 1 |
| Snow Squall Warning | 4 |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 3 |
| Winter Weather Advisory | 8 |
| Heat | |
| Heat Advisory | 4 |
| Cold | |
| Freeze Warning | 6 |
| Freeze Watch | 3 |
| Frost Advisory | 4 |
| Wind and dust | |
| Wind Advisory | 1 |
| 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 archive20202022
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.