Alert archive / Kentucky / Flash Flood Warnings in 2024

Flash Flood Warning 21, NWS Louisville, KY

July 28, 2024Logan County, Simpson County, Warren County, Kentucky

NWS Louisville, KY issued this flash flood warning at Jul 28, 2024, 7:55 PM CDT for Logan County, Simpson County, Warren County, Kentucky. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jul 28, 2024, 7:55 PM CDT (00:55 UTC)
Expired
Jul 28, 2024, 11:00 PM CDT
In force
3 hr
Issued by
NWS Louisville, KY
Area
Storm-based polygon
Flood severity
None

Counties Logan County, KY, Simpson County, KY, Warren County, KY

The radar

The Ft Campbell radar (KHPX), 57 km from the middle of the area, began a volume at 00:56 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.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 0.9 hours before the alert went out and 90 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 00:00Z on 2024-07-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 424 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 00:00Z on 2024-07-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 73 square meters per square second.193958Sfc1 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
424 J/kg
Mixed-layer CIN
-54 J/kg
Mixed-layer LCL
825 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
73 m²/s²
0-3 km storm-relative helicity
62 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.0

Open this sounding in Storm Lab

The text

As transmitted.

212 
WGUS53 KLMK 290055
FFWLMK
KYC141-213-227-290400-
/O.NEW.KLMK.FF.W.0021.240729T0055Z-240729T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Louisville KY
755 PM CDT Sun Jul 28 2024

The National Weather Service in Louisville has issued a

* Flash Flood Warning for...
  Northeastern Logan County in south central Kentucky...
  North Central Simpson County in south central Kentucky...
  West Central Warren County in south central Kentucky...

* Until 1100 PM CDT.

* At 755 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1 and 2.3 inches of 
  rain have fallen. Additional rainfall amounts of 1 to 2 inches are 
  possible in the warned area. 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...
  Auburn, Gasper, South Union, Chandlers Chapel, Browning, Petros, 
  Rockfield and Homer.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Move to higher ground now. Act quickly to protect your life.

&&

LAT...LON 3699 8657 3695 8656 3689 8655 3687 8658
      3686 8670 3686 8678 3687 8685 3691 8686
      3697 8684 3699 8676 3699 8669 3700 8664

FLASH FLOOD...RADAR INDICATED

$$

EBW
1 follow-up statement
012 
WGUS73 KLMK 290358
FFSLMK

Flash Flood Statement
National Weather Service Louisville KY
1058 PM CDT Sun Jul 28 2024

KYC141-213-227-290408-
/O.EXP.KLMK.FF.W.0021.000000T0000Z-240729T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Logan KY-Simpson KY-Warren KY-
1058 PM CDT Sun Jul 28 2024

...FLASH FLOOD WARNING WILL EXPIRE AT 11 PM CDT THIS EVENING FOR 
NORTHEASTERN LOGAN, NORTH CENTRAL SIMPSON AND WEST CENTRAL WARREN 
COUNTIES...

The heavy rain has ended. Flooding is no longer expected to pose a 
threat. Please continue to heed remaining road closures.

&&

LAT...LON 3699 8657 3695 8656 3689 8655 3687 8658
      3686 8670 3686 8678 3687 8685 3691 8686
      3697 8684 3699 8676 3699 8669 3700 8664

$$

RJS

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 28, 7:15 PM CDTSpecial Weather StatementLMKSimpson30 min
Jul 28, 7:43 PM CDTSpecial Weather StatementLMKSimpson32 min
Jul 28, 7:50 PM CDTAreal Flood AdvisoryLMKButler, Logan, Simpson, Warren3 hr
Jul 28, 8:12 PM CDTSpecial Weather StatementLMKSimpson33 min

Nearby

Flash Flood Warnings in Kentucky, 2024Every flash flood warning in 2024

Sources

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