Alert archive / West Virginia

Weather alerts in Hancock County, West Virginia

2,812 weather alerts since 1986, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Hancock County and its neighbors

Each county as a circle sized by its count since 1986. Tap one for its archive.

Alerts
2,812
Warnings
742
Watches
540
Advisories
471
Busiest year
2011173 alerts
Average year
69over 41 years on file

Over time

By year

Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.

By month of the year

Warning verification

How often warnings here had a storm report inside them, and how much warning the reports had.

From 2008 to 2025, 100% of tornado reports in Hancock County fell inside a tornado warning issued on average 19 minutes before, and 60% of the tornado warnings had no report inside them.

Tornado warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
201030100%0
201310100%0
202010100%0
2021220%0
2024220%4100%19 min
202510100%0

Severe thunderstorm warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
200813931%333%15 min
20094325%10%
2010241825%667%41 min
2011211624%3100%22 min
201221205%580%27 min
201324234%9100%14 min
201415940%888%24 min
201513128%6100%18 min
201613931%6100%14 min
2017181611%683%27 min
201812118%8100%24 min
2019211814%989%21 min
2020201620%580%20 min
2021262312%6100%9 min
2022201620%2100%8 min
2023131023%3100%19 min
2024221914%1191%27 min
2025252020%10100%24 min

Flash flood warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
2009110%0
2013440%4100%77 min
2015110%0
20162150%0
2017110%0
20182150%2100%103 min
2019330%2100%78 min
20203233%0
2021330%0
2022110%0
20235260%1100%23 min
20243233%2100%188 min
202510100%0

Years from 2008, the first full year of storm-based warnings. The year still running is on its own page.

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.

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

The latest warnings

The most recent on file, newest first.

IssuedProductOfficeLasted
Sep 9, 11:38 PM EDTAreal Flood WarningPBZ4 hr
Sep 9, 10:09 PM EDTFlash Flood WarningPBZ109 min
Sep 9, 8:54 PM EDTFlash Flood WarningPBZ3 hr
Sep 9, 7:24 PM EDTTornado WarningPBZ14 min
Sep 9, 7:21 PM EDTSevere Thunderstorm WarningPBZ39 min
Sep 4, 2:40 AM EDTFlash Flood WarningPBZ3 hr
Sep 3, 7:54 PM EDTSevere Thunderstorm WarningPBZ51 min
Sep 3, 7:51 PM EDTFlash Flood WarningPBZ2 hr
Sep 3, 6:11 PM EDTFlash Flood WarningPBZ6 hr
Sep 3, 5:57 PM EDTSevere Thunderstorm Warning Considerable damage threatPBZ48 min
Sep 3, 5:47 PM EDTSevere Thunderstorm Warning Considerable damage threatPBZ58 min
Sep 3, 5:25 PM EDTSevere Thunderstorm WarningPBZ50 min

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive

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.