Severe Thunderstorm Warning 121, NWS Louisville, KY

Area Forecast Discussion
National Weather Service Louisville KY
753 PM EDT Fri Jun 26 2026

...Updated Aviation Discussion...

.KEY MESSAGES...

* Flash flooding concerns remain as heavy rainfall chances
  remain in parts of the area through Saturday night.

* Summer heat and humidity build across the region next week, with
  triple digit heat indices likely (70-90% chance) west of I-65 on
  Monday and area-wide Tuesday through at least Friday. This will
  pose a risk for heat-related illness, especially among vulnerable
  populations.

&&

.SHORT TERM /THROUGH SATURDAY NIGHT/...
Issued at 426 PM EDT Fri Jun 26 2026

The Lower Ohio Valley sits under the right entrance region of an
upper jet while an 850 jet is beginning to push in from the west.
This is pulling moisture along a stationary front sitting near
central Indiana. Just to the west, over southeast Missouri and
southwest Illinois, precipitable water values are reaching over 2.1"
in an area with MLCAPE values around 1,500 J/kg. Over southern
Indiana and central Kentucky, instability it trying to recover from
earlier convection.

In the coming hours into the overnight, the system will slide east,
south of the front. The very high PWATs will move eastward along the
Ohio River as the low level jet increases to around 35 knots over
the area. This is expected to produce heavy showers and
thunderstorms. This afternoon and evening, the severe threat isn't
overly concerning, but if instability is able to recover, a few
strong storms could be possible. Overall the severe threat is
expected to remain fairly low with flooding being the main concern
over southern Indiana and north central Kentucky, so our counties
along and north of Interstate 64 will remain in a Flood Watch until
12z tomorrow. Later in the night, showers and thunderstorms are
expected to move with the high PWATs farther south into southern
Kentucky. We issued a Flood Watch for the rest of our counties in
Kentucky beginning at 6z tonight to cover the increased threat. With
training possible and the HREF showing 6-Hour Probability-Matched
Mean totals reaching as high as 3-4 inches in south-central Kentucky
during the day Saturday for multiple runs now, the watch will run
through 6z Sunday for when we believe the highest threat exists.

WAA will keep lows near the dew points in the low 70s to upper 60s.
Tomorrow as winds veer slightly towards the southwest, as surface
low pressure pushes in over central Indiana. With some small periods
of sunshine being possible, temperatures are expected to climb into
the low to mid 80s with dew points in the low to mid 70s.

&&

.LONG TERM /SUNDAY THROUGH FRIDAY/...
Issued at 426 PM EDT Fri Jun 26 2026

Into the day Sunday, PWATs are expected to begin decreasing from the
northwest ahead of a northwest to southeast oriented warm front that
is expected to push east across the CWA Sunday morning, producing
the last round of showers before precipitation finally comes to an
end.

Later Sunday through the rest of the week, an upper ridge axis will
advance east towards the CWA, brining a major shift in the weather
pattern. Dew points in the low 70s and temperatures climbing through
the mid and upper 90s will make it feel hot and sticky. High
pressure under the ridge should keep winds light, providing little
in the way of relieve as heat indices climb into the 90s to low
100s.

&&

.AVIATION /00Z TAFS THROUGH 06Z SUNDAY/...
Issued at 753 PM EDT Fri Jun 26 2026

A cluster of storms is moving northeast dropping visibilities to
MVFR/IFR conditions and ceilings to MVFR heights temporarily. Main
threat is gusty winds and lightning within these storms as they move
east through the evening. Once this cluster clears, spotty showers
and storms will linger overnight with ceilings dropping to MVFR
conditions across HNB/SDF/LEX. Except for lowered ceilings in
storms, high end MVFR ceilings are expected for BWG in the morning.
Multiple rounds of storms are expected tomorrow with near MVFR
conditions continuing Saturday morning.

&&

.LMK WATCHES/WARNINGS/ADVISORIES...
KY...Flood Watch through Saturday morning for KYZ030>043-049.
     Flood Watch from 2 AM EDT /1 AM CDT/ Saturday through late
     Saturday night for KYZ023>029-045>048-053>057-061>067-
     070>078-081-082.
IN...Flood Watch through Saturday morning for INZ076>079-083-084-
     089>092.

&&

SHORT TERM...KDW
LONG TERM...KDW
AVIATION...BKF

Special Weather Statement
National Weather Service Louisville KY
753 PM EDT Fri Jun 26 2026

KYZ024-025-028>030-045-053-270030-
Jefferson KY-Bullitt KY-Nelson KY-Meade KY-Larue KY-Hardin KY-
Breckinridge KY-
753 PM EDT Fri Jun 26 2026

...STRONG THUNDERSTORMS WILL IMPACT NORTHWESTERN NELSON...
SOUTHEASTERN MEADE...NORTH CENTRAL LARUE...SOUTHWESTERN JEFFERSON...
BULLITT...EAST CENTRAL BRECKINRIDGE AND HARDIN COUNTIES THROUGH 830
PM EDT/730 PM CDT/...

At 753 PM EDT/653 PM CDT/, Doppler radar was tracking a cluster of
strong thunderstorms 11 miles northwest of Elizabethtown, moving
northeast at 45 mph.

HAZARD...Wind gusts of 50 to 55 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Elizabethtown, Shepherdsville, Pioneer Village, Radcliff, Hillview,
Vine Grove, Lebanon Junction, Hebron Estates, Muldraugh, and New
Haven.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3790 8619 3811 8569 3783 8552 3768 8550
      3759 8607 3762 8625
TIME...MOT...LOC 2353Z 246DEG 38KT 3782 8603

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH

Neudorff

Special Weather Statement
National Weather Service Louisville KY
758 PM EDT Fri Jun 26 2026

INZ077-084-090>092-KYZ025-030-270045-
Crawford IN-Washington IN-Floyd IN-Clark IN-Harrison IN-Jefferson KY-
Meade KY-
758 PM EDT Fri Jun 26 2026

...STRONG THUNDERSTORMS WILL IMPACT HARRISON...WESTERN CLARK...
NORTHEASTERN CRAWFORD...FLOYD...SOUTHEASTERN WASHINGTON...EAST
CENTRAL MEADE AND SOUTHWESTERN JEFFERSON COUNTIES THROUGH 845 PM
EDT...

At 758 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Carefree Town to near Brandenburg.
Movement was northeast at 50 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Louisville, Jeffersonville, New Albany, Shively, Corydon, Audubon
Park, West Buechel, Watterson Park, Lynnview, and Hollow Creek.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3865 8593 3814 8561 3806 8581 3804 8588
      3800 8595 3800 8600 3798 8600 3795 8608
      3832 8641
TIME...MOT...LOC 2358Z 230DEG 41KT 3831 8634 3795 8611

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

BJS

Special Weather Statement
National Weather Service Louisville KY
833 PM EDT Fri Jun 26 2026

KYZ029-030-034-038-039-045-046-270115-
Jefferson KY-Shelby KY-Bullitt KY-Spencer KY-Washington KY-Nelson KY-
Anderson KY-
833 PM EDT Fri Jun 26 2026

...A STRONG THUNDERSTORM WILL IMPACT SPENCER...CENTRAL SHELBY...
NORTHERN NELSON...SOUTHWESTERN ANDERSON...NORTHEASTERN WASHINGTON...
SOUTHEASTERN JEFFERSON AND EASTERN BULLITT COUNTIES THROUGH 915 PM
EDT...

At 833 PM EDT, Doppler radar was tracking a strong thunderstorm 8
miles northwest of Bardstown, moving east at 40 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Shelbyville, Bardstown, Shepherdsville, Pioneer Village,
Taylorsville, Minor Lane Heights, Highview, Fern Creek, Mount
Washington, and Hillview.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3788 8504 3778 8564 3810 8571 3831 8517
TIME...MOT...LOC 0033Z 252DEG 35KT 3792 8556

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

Neudorff

Special Weather Statement
National Weather Service Louisville KY
848 PM EDT Fri Jun 26 2026

INZ078-079-091-092-KYZ030>034-270130-
Jefferson IN-Floyd IN-Clark IN-Scott IN-Jefferson KY-Oldham KY-
Shelby KY-Henry KY-Trimble KY-
848 PM EDT Fri Jun 26 2026

...A STRONG THUNDERSTORM WILL IMPACT WESTERN JEFFERSON...CLARK...
NORTHEASTERN FLOYD...CENTRAL SCOTT...OLDHAM...NORTHWESTERN SHELBY...
TRIMBLE...WESTERN HENRY AND CENTRAL JEFFERSON COUNTIES THROUGH 930 PM
EDT...

At 848 PM EDT, Doppler radar was tracking a strong thunderstorm 9
miles north of Jeffersonville, moving northeast at 40 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Louisville, Jeffersonville, New Albany, Jeffersontown, St. Matthews,
Madison, Lyndon, La Grange, Middletown, and Scottsburg.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3838 8499 3811 8567 3841 8591 3882 8572
      3883 8571 3882 8570 3882 8563 3883 8561
      3885 8561 3886 8557 3888 8557
TIME...MOT...LOC 0048Z 204DEG 33KT 3845 8577

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

Neudorff

Preliminary Local Storm Report
National Weather Service Louisville KY
910 PM EDT Fri Jun 26 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0816 PM     Flash Flood      Huntingburg             38.30N 86.95W
06/26/2026                   Dubois             IN   911 Call Center

            Time Estimated by Radar: East 6th Street
            from North Van Buren Street to North Cherry
            Street flooded. Multiple vehicles in high
            water.

&&

BKF

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