Alert archive / Kentucky / Flash Flood Warnings in 2026

Flash Flood Warning 69, NWS Louisville, KY

June 27, 202612 counties in Kentucky

NWS Louisville, KY issued this flash flood warning at Jun 27, 2026, 11:29 AM EDT for 12 counties in Kentucky. It was in force for 8 hr. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jun 27, 2026, 11:29 AM EDT (15:29 UTC)
Expired
Jun 27, 2026, 7:00 PM EDT
In force
8 hr
Issued by
NWS Louisville, KY
Area
Storm-based polygon
Flood severity
None

Counties Boyle County, KY, Casey County, KY, Grayson County, KY, Green County, KY, Hardin County, KY, Hart County, KY, Larue County, KY, Lincoln County, KY, Marion County, KY, Nelson County, KY, Taylor County, KY, Washington County, KY

The radar

The Louisville radar (KLVX), 69 km from the middle of the area, began a volume at 15:28 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Jun 27, 1:30 PM EDTFLASH FLOODColesburg, KYRoadway flooding at Battle Training Road and Colesburg Road.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched 2 storm reports to this flash flood warning; the first came 121 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 3.5 hours before the alert went out and 192 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Nashville Metro, TN at 12:00Z on 2026-06-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 575 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 12:00Z on 2026-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 152 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
575 J/kg
Mixed-layer CIN
-42 J/kg
Mixed-layer LCL
991 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
152 m²/s²
0-3 km storm-relative helicity
174 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.2

Open this sounding in Storm Lab

The text

As transmitted.

048 
WGUS53 KLMK 271529
FFWLMK
KYC021-045-085-087-093-099-123-137-155-179-217-229-272100-
/O.NEW.KLMK.FF.W.0069.260627T1529Z-260627T2100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Louisville KY
1129 AM EDT Sat Jun 27 2026

The National Weather Service in Louisville has issued a

* Flash Flood Warning for...
  Southern Boyle County in central Kentucky...
  Northwestern Casey County in central Kentucky...
  Southeastern Grayson County in central Kentucky...
  Northwestern Green County in central Kentucky...
  Southeastern Hardin County in central Kentucky...
  Northern Hart County in central Kentucky...
  Larue County in central Kentucky...
  Northern Lincoln County in central Kentucky...
  Marion County in central Kentucky...
  Southwestern Nelson County in central Kentucky...
  Taylor County in central Kentucky...
  South Central Washington County in central Kentucky...

* Until 500 PM EDT /400 PM CDT/.

* At 1129 AM EDT /1029 AM CDT/, Doppler radar indicated 
  thunderstorms producing heavy rain across the warned area. Between 
  2 and 4.8 inches of rain have fallen. Flash flooding is ongoing or 
  expected to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Elizabethtown, Danville, Campbellsville, Lebanon, Stanford, 
  Hodgenville, Radcliff, Junction City, Lebanon Junction and New 
  Haven.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.

In hilly terrain there are hundreds of low water crossings which are 
potentially dangerous in heavy rain. Do not attempt to cross flooded 
roads. Find an alternate route.

Please report flooding to your local law enforcement agency when you 
can do so safely and have them relay your report to the National 
Weather Service in Louisville.

&&

LAT...LON 3750 8607 3751 8579 3780 8593 3781 8572
      3781 8571 3763 8533 3764 8504 3755 8501
      3754 8491 3761 8475 3759 8466 3744 8450
      3741 8482 3737 8513 3731 8569 3732 8611

FLASH FLOOD...RADAR INDICATED

$$

KDW
2 follow-up statements
205 
WGUS53 KLMK 271749
FFWLMK
KYC021-045-085-087-093-099-123-137-155-179-217-229-272300-
/O.EXT.KLMK.FF.W.0069.000000T0000Z-260627T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Louisville KY
149 PM EDT Sat Jun 27 2026

The National Weather Service in Louisville has extended the

* Flash Flood Warning for...
  Southern Boyle County in central Kentucky...
  Northwestern Casey County in central Kentucky...
  Southeastern Grayson County in central Kentucky...
  Northwestern Green County in central Kentucky...
  Southeastern Hardin County in central Kentucky...
  Northern Hart County in central Kentucky...
  Larue County in central Kentucky...
  Northern Lincoln County in central Kentucky...
  Marion County in central Kentucky...
  Southwestern Nelson County in central Kentucky...
  Taylor County in central Kentucky...
  South Central Washington County in central Kentucky...

* Until 700 PM EDT /600 PM CDT/.

* At 149 PM EDT /1249 PM CDT/, the public reported thunderstorms 
  producing heavy rain across the warned area. Flash flooding is 
  ongoing or expected to begin shortly.

  HAZARD...Life threatening flash flooding. Thunderstorms
           producing flash flooding.

  SOURCE...Public reported.

  IMPACT...Life threatening flash flooding of creeks and streams,
           urban areas, highways, streets and underpasses.

* Some locations that will experience flash flooding include...
  Elizabethtown, Danville, Campbellsville, Lebanon, Stanford, 
  Hodgenville, Radcliff, Junction City, Lebanon Junction and New 
  Haven.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.

In hilly terrain there are hundreds of low water crossings which are 
potentially dangerous in heavy rain. Do not attempt to cross flooded 
roads. Find an alternate route.

Please report flooding to your local law enforcement agency when you 
can do so safely and have them relay your report to the National 
Weather Service in Louisville.

&&

LAT...LON 3750 8607 3751 8579 3780 8593 3781 8572
      3781 8571 3763 8533 3764 8504 3755 8501
      3754 8491 3761 8475 3759 8466 3744 8450
      3741 8482 3737 8513 3731 8569 3732 8611

FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

KDW
123 
WGUS73 KLMK 272303
FFSLMK

Flash Flood Statement
National Weather Service Louisville KY
703 PM EDT Sat Jun 27 2026

KYC021-045-085-087-093-099-123-137-155-179-217-229-272313-
/O.EXP.KLMK.FF.W.0069.000000T0000Z-260627T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Boyle KY-Casey KY-Grayson KY-Green KY-Hardin KY-Hart KY-Larue KY-
Lincoln KY-Marion KY-Nelson KY-Taylor KY-Washington KY-
703 PM EDT Sat Jun 27 2026 /603 PM CDT Sat Jun 27 2026/

...FLASH FLOOD WARNING HAS EXPIRED FOR SOUTHERN BOYLE, NORTHWESTERN 
CASEY, SOUTHEASTERN GRAYSON, NORTHWESTERN GREEN, SOUTHEASTERN 
HARDIN, NORTHERN HART, LARUE, NORTHERN LINCOLN, MARION, SOUTHWESTERN 
NELSON, TAYLOR AND SOUTH CENTRAL WASHINGTON COUNTIES...

Flood waters have receded. Please continue to heed remaining road 
closures.

A Flood Watch remains in effect until 800 AM EDT Sunday/700 AM CDT 
Sunday for portions of east central, north central, northwest, and 
south central Kentucky.

&&

LAT...LON 3750 8607 3751 8579 3780 8593 3781 8572
      3781 8571 3763 8533 3764 8504 3755 8501
      3754 8491 3761 8475 3759 8466 3744 8450
      3741 8482 3737 8513 3731 8569 3732 8611

$$

KDW

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Louisville, KY wrote its last area forecast discussion before this flash flood warning went out at Jun 27, 7:10 AM EDT, 4 hours 19 minutes earlier. Its key messages:

  • * The risk for heavy rainfall and flash flooding continues today across southern IN and central KY. Rainfall amounts of 1 to 3 inches are possible, with locally higher amounts due to training storms. Isolated significant flash flooding is possible. * 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.
Area forecast discussion, Jun 27, 7:10 AM EDT, 4 hours 19 minutes before
Area Forecast Discussion
National Weather Service Louisville KY
710 AM EDT Sat Jun 27 2026

.KEY MESSAGES...

* The risk for heavy rainfall and flash flooding continues today
  across southern IN and central KY. Rainfall amounts of 1 to 3
  inches are possible, with locally higher amounts due to training
  storms. Isolated significant flash flooding is possible.

* 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 SUNDAY/...
Issued at 413 AM EDT Sat Jun 27 2026

A significant rainfall and flash flooding event is in progress
across southern Indiana, and the heavy rainfall threat is set to
shift southward later today. Early this morning, scattered storms
producing highly efficient rainfall are moving west to east across
southern IN and north-central KY. A 25-30 kt WSW low-level jet
continues to funnel moisture up the Lower OH River Valley. PW values
approaching 2.2 inches and deep warm cloud depths are supporting
more tropical rainfall processes. New Flash Flood Warnings are in
effect for Dubois, Perry, Crawford, and Meade counties, and
additional warnings are possible downstream (including in the
Louisville Metro).

By 7-11 AM EDT this morning, convective clusters are forecast to
have congealed more over central KY ahead of a convectively-
generated wave/MCV. The 25 kt westerly LLJ weakens slightly and
shifts ever so slightly south over central KY during the late
morning and early afternoon hours. This trend continues, with the 25-
30 kt LLJ responding across south-central KY this evening in the
left exit region of a 40 kt mid-level jet over TN. This should give
southern IN a brief respite, with swaths of heavier rainfall
shifting into central and southern KY from mid-morning into early
afternoon.

Scattered showers and storms will remain possible in southern KY
into the evening hours. However, the lull in the action along and
north of I-64 will allow the northern areas to destabilize during
peak heating. Scattered convective redevelopment appears likely
across southern IN and northern KY by early to mid-afternoon. The
still moist environment will still support locally heavy rainfall,
so we have extended the Flood Watch for areas along and north of I-
64 through 8 PM EDT this evening. The Flood Watch for areas south of
I-64 continues through 8 AM EDT Sunday.

Additional rainfall amounts of 1-3 inches appear possible early this
morning through Sunday. Localized higher totals of 3-5 inches will
be possible across south-central KY today into tonight. In addition
to heavy rainfall today, some stronger storms will be capable of
locally strong wind gusts. We do see a modest increase in low-level
SRH this evening across southern KY, but overall the tornado threat
is fairly low.

Overnight into early Sunday, shower and thunderstorm coverage should
decrease over much of the area with the highest PoPs consolidating
in a NW to SE oriented warm advection wing over western and south-
central KY. Mid and upper level ridging amplifies over the MS Valley
on Sunday, and increasing subsidence aloft will lessen precipitation
chances and coverage. However, at least isolated showers and storms
will remain possible into Sunday afternoon. Highs in the low 80s
will be common today, with temperatures rising into the mid 80s to
near 90 on Sunday.

&&

.LONG TERM /SUNDAY NIGHT THROUGH FRIDAY/...
Issued at 413 AM EDT Sat Jun 27 2026

A dramatic pattern change is still expected next week. Models
suggest substantial amplification of an upper level ridge over the
eastern CONUS. We expect to transition to a stretch of hot and
oppressively humid conditions. For those currently experiencing
flooding, it will be a notably drier stretch. Afternoon high
temperatures are forecast to reach the low to mid 90s. With
lingering humidity (sfc dewpoints in the mid 70s, heat indices of
100-110+ are likely each day.

Strong ridging aloft should keep us mostly dry through Thursday,
though there is a 10% chance for isolated pulse convection by
Thursday. There are signals the ridge may weaken somewhat heading
into next weekend. Hot and humid conditions are likely to linger
into the Fourth of July holiday, but we have a 30-40% chance for
showers and storms on Friday and Saturday.

&&

.AVIATION /12Z TAFS THROUGH 18Z SUNDAY/...
Issued at 709 AM EDT Sat Jun 27 2026

Multiple waves of showers and storms are moving west to east across
Kentucky and southern Indiana Saturday morning. These will bring
occasional visibility drops and perhaps (40-50% chance)
lightning strikes to the airfields - both are included in PROB30
groups. The area should have a short lull in activity early
this afternoon, though MVFR ceilings may linger. Another round
of showers and thunderstorms is forecast to develop during the
late afternoon and linger through the evening, possibly into the
overnight period. Confidence is highest in this second wave at
BWG where another PROB30 group was added, but there is a low
(20-30%) chance at the other terminals as well. Winds will
become predominantly southwesterly at 8-12kt by around 15z/11am
EDT.

&&

.LMK WATCHES/WARNINGS/ADVISORIES...
KY...Flood Watch through this evening for KYZ030>043-049.
     Flood Watch through Sunday morning for KYZ023>029-045>048-
     053>057-061>067-070>078-081-082.
IN...Flood Watch through this evening for INZ076>079-083-084-
     089>092.

&&

SHORT TERM...EBW
LONG TERM...EBW
AVIATION...JRB

In the hours before

Local storm report, Jun 27, 6:52 AM EDT, 4 hours 37 minutes before
Preliminary Local Storm Report
National Weather Service Louisville KY
652 AM EDT Sat Jun 27 2026

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

0641 AM     Flash Flood      3 SSW Brooks            38.03N 85.74W
06/27/2026                   Bullitt            KY   Emergency Mngr

            Multiple roads flooded in northern Bullitt
            County, with several water rescues.

&&

JRB
Local storm report, Jun 27, 7:11 AM EDT, 4 hours 18 minutes before
Preliminary Local Storm Report
National Weather Service Louisville KY
711 AM EDT Sat Jun 27 2026

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

0901 PM     Tornado          1 N Memphis             38.50N 85.77W
06/26/2026                   Clark              IN   NWS Storm Survey

            EF0 Tornado with 85 mph winds was on the
            ground for 0.3 miles and had a width of 25
            yards.

&&

JRB
Local storm report, Jun 27, 11:22 AM EDT, 7 minutes before
Preliminary Local Storm Report
National Weather Service Louisville KY
1122 AM EDT Sat Jun 27 2026

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

0921 AM     Flash Flood      1 WSW New Pekin         38.50N 86.04W
06/27/2026                   Washington         IN   Emergency Mngr

            Roadway flooded on Martinsburg Rd near the
            Blue River.

&&

BEN
Local storm report, Jun 27, 11:25 AM EDT, 4 minutes before
Preliminary Local Storm Report
National Weather Service Louisville KY
1125 AM EDT Sat Jun 27 2026

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

0921 AM     Flash Flood      2 NNW Martinsburg       38.48N 86.05W
06/27/2026                   Washington         IN   Emergency Mngr

            Roadway flooded on Trainor Lane near the
            Blue River.

&&

BEN
Local storm report, Jun 27, 11:27 AM EDT, 2 minutes before
Preliminary Local Storm Report
National Weather Service Louisville KY
1127 AM EDT Sat Jun 27 2026

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

0921 AM     Flash Flood      2 NNW Martinsburg       38.48N 86.05W
06/27/2026                   Washington         IN   Emergency Mngr

            Corrects previous flash flood report from 2
            NNW Martinsburg. Roadway flooded on Trainer
            Lane near the Blue River.

&&

BEN

The office that day

Everything else NWS Louisville, KY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 26, 8:30 PM EDTSevere Thunderstorm WarningLMKJefferson, Oldham30 min
Jun 26, 8:33 PM EDTSpecial Weather StatementLMKShelby, Spencer42 min
Jun 26, 8:48 PM EDTSpecial Weather StatementLMKHenry, Jefferson, Oldham, Trimble42 min
Jun 26, 8:57 PM EDTSevere Thunderstorm WarningLMKAnderson, Mercer, Nelson, Spencer, Washington48 min
Jun 26, 9:17 PM EDTSevere Thunderstorm WarningLMKTrimble24 min
Jun 26, 9:23 PM EDTSpecial Weather StatementLMKBoyle, Mercer, Washington37 min
Jun 26, 9:31 PM EDTSevere Thunderstorm WarningLMKAnderson, Fayette, Jessamine, Mercer, Scott, Washington and 1 more21 min
Jun 26, 9:51 PM EDTSpecial Weather StatementLMKFayette, Franklin, Scott, Woodford39 min
Jun 26, 10:00 PM EDTSpecial Weather StatementLMKBoyle, Garrard, Jessamine30 min
Jun 26, 10:27 PM EDTSpecial Weather StatementLMKBourbon, Clark, Fayette, Garrard, Harrison, Madison and 2 more63 min
Jun 27, 3:28 AM EDTFlash Flood WarningLMKBreckinridge, Meade13 hr
Jun 27, 4:26 AM EDTFlash Flood WarningLMKBullitt, Hardin, Meade19 hr
Jun 27, 4:42 AM EDTAreal Flood AdvisoryLMKBreckinridge, Hardin, Larue, Nelson3 hr
Jun 27, 5:15 AM EDTAreal Flood AdvisoryLMKHenry, Oldham, Trimble3 hr
Jun 27, 5:52 AM EDTFlash Flood WarningLMKMarion, Nelson, Washington17 hr
Jun 27, 6:38 AM EDTFlash Flood WarningLMKJefferson8 hr
Jun 27, 6:47 AM EDTFlash Flood WarningLMKSpencer7 hr
Jun 27, 6:54 AM EDTFlash Flood WarningLMKBoyle, Mercer, Washington8 hr
Jun 27, 8:04 AM EDTFlash Flood WarningLMKAnderson, Bullitt, Jefferson, Mercer, Nelson, Shelby and 3 more7 hr
Jun 27, 8:08 AM EDTFlash Flood Warning EmergencyLMKBoyle, Garrard, Jessamine, Lincoln, Madison, Mercer11 hr
Jun 27, 8:58 AM EDTAreal Flood AdvisoryLMKLogan, Simpson, Warren3 hr
Jun 27, 10:37 AM EDTAreal Flood AdvisoryLMKBreckinridge, Hancock35 min
Jun 27, 10:45 AM EDTFlash Flood WarningLMKGarrard, Lincoln, Madison6 hr
Jun 27, 10:55 AM EDTAreal Flood AdvisoryLMKBoyle, Casey, Grayson, Green, Hardin, Hart and 6 more34 min
Jun 27, 11:12 AM EDTFlash Flood WarningLMKBreckinridge, Hancock3 hr
Jun 27, 11:53 AM EDTAreal Flood AdvisoryLMKBreckinridge, Butler, Edmonson, Grayson, Hancock, Hart and 2 more8 min
Jun 27, 12:01 PM EDTFlash Flood WarningLMKBreckinridge, Butler, Edmonson, Grayson, Hancock, Hart and 2 more11 hr
Jun 27, 3:39 PM EDTRiver Flood WarningLMKOhio5 days
Jun 27, 4:27 PM EDTSevere Thunderstorm WarningLMKBreckinridge, Hancock, Ohio63 min
Jun 27, 4:34 PM EDTRiver Flood WarningLMKHardin, Nelson4 days
Jun 27, 5:02 PM EDTSevere Thunderstorm WarningLMKBreckinridge, Grayson, Hancock, Hardin, Meade28 min
Jun 27, 5:25 PM EDTFlash Flood Warning Considerable damage threatLMKBreckinridge, Hancock, Meade6 hr
Jun 27, 6:40 PM EDTFlash Flood Warning Considerable damage threatLMKButler, Logan, Ohio, Warren5 hr

Nearby

Flash Flood Warnings in Kentucky, 2026Every flash flood warning in 2026

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.