Severe Weather History


Hazard archive · 1950 — present

Flash Flood in Mercer County, West Virginia

77

Recorded events

0

Direct deaths

0

Direct injuries

$14.6M

Property damage

Flash Flood in Mercer County, West Virginia: 77 recorded events between 1996 and 2025. The strongest on record measured 0. That places the county #289 nationally and #5 statewide for this hazard.

Decade by decade

Flash Flood in Mercer County, West Virginia: events per decade

Flash Flood in Mercer County, West Virginia: recorded events per decade
Flash Flood in Mercer County, West Virginia: recorded events per decade

Reporting practice changed over time — early decades are undercounted, not calmer.

The busiest decade for flash flood in Mercer County is the 2000s, when 28 of the county's 77 recorded events were logged. Comparing decades is useful for spotting active periods, but the earliest years are thin because systematic reporting for this hazard began later.

Within the Mercer County archive, flash flood makes up 22.6% of all recorded severe weather across 8 hazard types. Nationally the county sits at #289 for this hazard and #5 within West Virginia, putting it in the 90.7 percentile of all U.S. counties.

Seasonality

Events by month

3Jan
3Feb
6Mar
0Apr
32May
6Jun
11Jul
8Aug
6Sep
0Oct
1Nov
1Dec

May is the peak month for flash flood in Mercer County with 32 recorded events, while Apr is the quietest. Seasonality here is a property of the archive as much as the climate: reports cluster where population and spotter networks are densest.

Most recent

Latest recorded events

DateLocationMagnitudeDamage
Jul 31, 2025HALES GAP0$0
Feb 15, 2025KELLYSVILLE0$50K
Feb 15, 2025FLAT TOP0$2.0M
Sep 26, 2024SANDLICK0$25K
Sep 26, 2024PRINCETON0$100K
Sep 26, 2024LITTLESBURG0$0
Sep 26, 2024BLUEFIELD0$0
Sep 26, 2024BRUSH FORK0$0
May 19, 2024FLIPPING CREEK JCT0$10K
May 19, 2024NEMOURS0$0
Source: NOAA/NCEI Storm Events · dates UTC · recent entries may be preliminary

Other hazards here

More from Mercer County

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From the record

What the reports say

Written by National Weather Service staff at the time of the event · public domain

Quick answers

Frequently asked

How many flash flood events are on record in Mercer County, West Virginia?

77 flash flood events are recorded in Mercer County between 1996 and 2025, causing 0 direct deaths.

What is the strongest flash flood recorded in Mercer County?

The strongest flash flood on record in Mercer County measured 0.

Where does the flash flood data for Mercer County come from?

All events come from the NOAA/NCEI Storm Events Database, the federal public-domain archive of severe weather reports. Dates are UTC, damage is as reported and not inflation-adjusted, and the most recent entries may still be revised.

Cite this page

“Flash Flood in Mercer County, West Virginia.” Severe Weather History. severeweatherhistory.com/county/west-virginia/mercer-county/flash-flood/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.


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