Severe Weather History


Hazard archive · 1950 — present

Flash Flood in Jefferson County, Kentucky

166

Recorded events

1

Direct deaths

0

Direct injuries

$47.5M

Property damage

Flash Flood in Jefferson County, Kentucky: 166 recorded events between 1997 and 2026. The strongest on record measured 0. That places the county #60 nationally and #1 statewide for this hazard.

Decade by decade

Flash Flood in Jefferson County, Kentucky: events per decade

Flash Flood in Jefferson County, Kentucky: recorded events per decade
Flash Flood in Jefferson County, Kentucky: recorded events per decade

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

The busiest decade for flash flood in Jefferson County is the 2010s, when 86 of the county's 166 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 Jefferson County archive, flash flood makes up 14.3% of all recorded severe weather across 8 hazard types. Nationally the county sits at #60 for this hazard and #1 within Kentucky, putting it in the 98.1 percentile of all U.S. counties.

Seasonality

Events by month

5Jan
19Feb
6Mar
17Apr
17May
21Jun
36Jul
10Aug
21Sep
12Oct
0Nov
2Dec

Jul is the peak month for flash flood in Jefferson County with 36 recorded events, while Nov 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.

Significant events

Deadliest on record

DateLocationScaleDeathsInjuriesDamage
Sep 9, 2018LOUISVILLE010$10K
Source: NOAA/NCEI Storm Events · dates UTC

Most recent

Latest recorded events

DateLocationMagnitudeDamage
Apr 27, 2026STRATHMOOR MANOR$0
Apr 27, 2026LOUISVILLE$0
Oct 7, 2025MINOR LANE HGTS0$0
Oct 7, 2025VALLEY STATION0$0
Oct 7, 2025LOUISVILLE0$0
Oct 7, 2025LOUISVILLE0$0
Oct 7, 2025LOUISVILLE0$0
Jul 19, 2025JEFFERSONTOWN0$0
Jul 17, 2025SHIVELY0$0
Apr 4, 2025MINOR LANE HGTS0$0
Source: NOAA/NCEI Storm Events · dates UTC · recent entries may be preliminary

Other hazards here

More from Jefferson County

County overview →

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 Jefferson County, Kentucky?

166 flash flood events are recorded in Jefferson County between 1997 and 2026, causing 1 direct deaths.

What is the strongest flash flood recorded in Jefferson County?

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

Where does the flash flood data for Jefferson 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 Jefferson County, Kentucky.” Severe Weather History. severeweatherhistory.com/county/kentucky/jefferson-county/flash-flood/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.


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