Alert archive / West Virginia / Harrison County
Weather alerts in Harrison County, West Virginia, 2018
109 weather alerts in 2018, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Harrison County and its neighbors
Each county as a circle sized by its count in 2018. Tap one for its archive.
- Alerts
- 109
- Warnings
- 33
- Watches
- 20
- Advisories
- 21
- Busiest month
- April23 alerts
- Busiest day
- October 2, 20187 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Harrison County, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 7 | 4 | 43% | 8 | 50% | 10 min |
| Flash flood warnings | 9 | 6 | 33% | 8 | 75% | 65 min |
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 3, 3:27 AM EST | Wind Chill Advisory | RLX | 58 hr |
| Jan 5, 1:29 PM EST | Wind Chill Advisory | RLX | 26 hr |
| 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 6, 4:23 AM EST | Winter Weather Advisory | RLX | 33 hr |
| Feb 6, 10:36 AM EST | Flood Watch | RLX | 26 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, 1:22 AM EST | Areal Flood Warning | RLX | 36 hr |
| Feb 16, 8:18 AM EST | Areal Flood Warning | RLX | 24 hr |
| Feb 16, 6:34 PM EST | River Flood Warning | RLX | 14 hr |
| Feb 16, 9:17 PM EST | Winter Weather Advisory | RLX | 31 hr |
| Feb 24, 11:52 AM EST | Areal Flood Warning | RLX | 5 hr |
| Feb 24, 1:21 PM EST | Special Weather Statement | RLX | 114 min |
| Mar 1, 3:27 AM EST | Wind Advisory | RLX | 35 hr |
| Mar 1, 7:08 PM EST | Special Weather Statement | RLX | 67 min |
| Mar 6, 10:00 AM EST | Special Weather Statement | RLX | 15 min |
| Mar 7, 3:36 PM EST | Special Weather Statement | RLX | 54 min |
| Mar 7, 4:31 PM EST | Special Weather Statement | RLX | 59 min |
| Mar 8, 9:06 AM EST | Special Weather Statement | RLX | 54 min |
| Mar 8, 10:19 AM EST | Special Weather Statement | RLX | 116 min |
| Mar 8, 2:29 PM EST | Special Weather Statement | RLX | 61 min |
| Mar 13, 10:39 AM EDT | Winter Weather Advisory | RLX | 27 hr |
| Mar 16, 3:56 AM EDT | Winter Weather Advisory | RLX | 33 hr |
| Mar 19, 3:39 PM EDT | Winter Storm Watch | RLX | 13 hr |
| Mar 19, 3:39 PM EDT | Winter Weather Advisory | RLX | 55 hr |
| Mar 22, 6:17 AM EDT | Special Weather Statement | RLX | 118 min |
| Mar 27, 1:32 PM EDT | Flood Watch | RLX | 68 hr |
| Apr 1, 2:12 PM EDT | Winter Weather Advisory | RLX | 14 hr |
| Apr 3, 7:16 AM EDT | Flash Flood Watch | RLX | 8 hr |
| Apr 3, 12:43 PM EDT | Special Weather Statement | RLX | 2 hr |
| Apr 3, 2:24 PM EDT | Flash Flood Watch | RLX | 13 hr |
| Apr 3, 5:13 PM EDT | Areal Flood Warning | RLX | 18 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, 10:06 PM EDT | Special Weather Statement | RLX | 24 min |
| Apr 3, 10:13 PM EDT | Severe Thunderstorm Warning | RLX | 34 min |
| Apr 4, 3:14 AM EDT | Wind Advisory | RLX | 16 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 14, 2:18 PM EDT | Flash Flood Watch | RLX | 38 hr |
| Apr 15, 10:19 PM EDT | Areal Flood Warning | RLX | 24 hr |
| Apr 16, 3:03 AM EDT | Freeze Warning | RLX | 31 hr |
| Apr 16, 9:53 AM EDT | River Flood Warning | RLX | 18 hr |
| Apr 17, 4:58 PM EDT | Freeze Warning | RLX | 16 hr |
| 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 |
| Apr 30, 7:18 PM EDT | Frost Advisory | RLX | 14 hr |
| May 12, 1:51 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 12, 2:47 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 12, 5:05 PM EDT | Mesoscale Discussion | SPC | 115 min |
| May 13, 1:56 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 13, 4:28 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 13, 7:00 PM EDT | Mesoscale Discussion | SPC | 60 min |
| May 14, 11:56 AM EDT | Mesoscale Discussion | SPC | 64 min |
| May 14, 12:29 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| May 14, 3:26 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 15, 7:34 PM EDT | Special Weather Statement | RLX | 26 min |
| May 15, 7:59 PM EDT | Severe Thunderstorm Warning | RLX | 46 min |
| May 16, 2:23 PM EDT | Flood Watch | RLX | 59 hr |
| May 21, 3:30 PM EDT | Mesoscale Discussion | SPC | 60 min |
| May 21, 6:10 PM EDT | Special Weather Statement | RLX | 50 min |
| Jun 20, 2:52 PM EDT | Special Weather Statement | RLX | 38 min |
| Jun 20, 3:23 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 21, 3:41 AM EDT | Flash Flood Watch | RLX | 46 hr |
| Jun 22, 2:08 PM EDT | Flash Flood Warning | RLX | 3 hr |
| Jun 22, 2:29 PM EDT | Flash Flood Warning | RLX | 3 hr |
| Jun 27, 5:06 PM EDT | Special Weather Statement | RLX | 39 min |
| Jun 27, 7:50 PM EDT | Special Weather Statement | RLX | 55 min |
| Jun 27, 10:39 PM EDT | Flash Flood Warning | RLX | 7 hr |
| Jul 1, 2:09 PM EDT | Heat Advisory | RLX | 6 hr |
| Jul 3, 1:56 PM EDT | Heat Advisory | RLX | 30 hr |
| Jul 4, 6:51 PM EDT | Severe Thunderstorm Warning | RLX | 24 min |
| Jul 4, 7:29 PM EDT | Flash Flood Warning | RLX | 2 hr |
| Jul 5, 10:32 AM EDT | Flash Flood Watch | RLX | 14 hr |
| Jul 15, 4:55 PM EDT | Flash Flood Warning | RLX | 3 hr |
| Aug 1, 3:40 AM EDT | Flash Flood Watch | RLX | 62 hr |
| Aug 3, 11:34 AM EDT | Flash Flood Warning | RLX | 3 hr |
| Aug 7, 1:09 PM EDT | Special Weather Statement | RLX | 51 min |
| Aug 10, 9:46 PM EDT | Flash Flood Warning | RLX | 3 hr |
| Aug 13, 1:57 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 21, 12:45 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 21, 2:16 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Sep 8, 3:34 AM EDT | Flood Watch | RLX | 49 hr |
| Sep 9, 8:39 AM EDT | Areal Flood Warning | RLX | 6 hr |
| Sep 11, 2:50 AM EDT | River Flood Warning | RLX | 18 days |
| Sep 22, 3:09 PM EDT | Flash Flood Watch | RLX | 4 days |
| Oct 2, 4:41 PM EDT | Severe Thunderstorm Warning | RLX | 34 min |
| Oct 2, 5:08 PM EDT | Special Weather Statement | RLX | 37 min |
| Oct 2, 5:29 PM EDT | Special Weather Statement | RLX | 31 min |
| Oct 2, 5:51 PM EDT | Severe Thunderstorm Warning | RLX | 39 min |
| Oct 2, 6:11 PM EDT | Flash Flood Warning | RLX | 3 hr |
| Oct 2, 6:26 PM EDT | Flash Flood Warning | RLX | 3 hr |
| Oct 2, 6:29 PM EDT | Severe Thunderstorm Warning | RLX | 35 min |
| 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 |
| 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, 4:30 PM EST | Special Weather Statement | RLX | 3 hr |
| Nov 27, 7:03 PM EST | Special Weather Statement | RLX | 3 hr |
| Dec 1, 11:24 PM EST | Severe Thunderstorm Warning | RLX | 36 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 | 7 |
| Severe Thunderstorm Watch | 4 |
| Mesoscale Discussion | 14 |
| Special Weather Statement | 21 |
| Flooding | |
| Areal Flood Warning | 6 |
| Flash Flood Warning | 9 |
| River Flood Warning | 3 |
| Flash Flood Watch | 7 |
| Flood Watch | 7 |
| Winter | |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 11 |
| Heat | |
| Heat Advisory | 2 |
| Cold | |
| Freeze Warning | 6 |
| Frost Advisory | 3 |
| Wind Chill Advisory | 2 |
| Wind and dust | |
| Wind Advisory | 3 |
| 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.