Alert archive / Kentucky / Flash Flood Warnings in 2018

Flash Flood Warning 2, NWS Louisville, KY

February 24, 2018Bullitt County, Jefferson County, Kentucky; Clark County, Floyd County, Indiana

NWS Louisville, KY issued this flash flood warning at Feb 24, 2018, 6:15 PM EST for Bullitt County, Jefferson County, Kentucky; Clark County, Floyd County, Indiana. It was in force for 4 hr. 11 reports 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
Feb 24, 2018, 6:15 PM EST (23:15 UTC)
Expired
Feb 24, 2018, 9:45 PM EST
In force
4 hr
Issued by
NWS Louisville, KY
Area
Storm-based polygon
Flood severity
None

Counties Clark County, IN, Floyd County, IN, Bullitt County, KY, Jefferson County, KY

The radar

The Louisville radar (KLVX), 30 km from the middle of the area, began a volume at 23:16 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
Feb 24, 6:30 PM ESTFLASH FLOOD1 Sse Anchorage, KYNUMEROUS REPORTS OF FLOODED ROADWAYS ACROSS MUCH OF THE LOUISVILLE METRO AREA INCLUDING WATER RESCUES IN THE ANCHORAGE AREA. MANHOLE COVERS REPORTED OFF IN THE DOWNTOWN AREA.
Feb 24, 6:40 PM ESTFLOOD1 E Okolona, KYHIGH WATER, ROADS CLOSED, VEHICLES STRANDED.
Feb 24, 6:45 PM ESTFLASH FLOOD3 Wnw Louisville, KY
Feb 24, 6:59 PM ESTFLASH FLOOD2 Nnw Jeffersontown, KYCARS STRANDED. WATER UP 4 FT ON THE ROAD.
Feb 24, 7:01 PM ESTFLASH FLOOD2 E Louisville, KYEXIT RAMPS BEING CLOSED DUE TO HIGH WATER. I64 AND STORY AVE.
Feb 24, 7:17 PM ESTFLASH FLOOD2 Ssw Fairdale, KYFAIRDALE FIRE DEPT SAYS INTERSECTION OF MITCHELL RD AND HOLSCLAW RD IMPASSABLE.
Feb 24, 7:19 PM ESTFLASH FLOOD2 Nnw Jeffersontown, KYWATER RESCUES.
Feb 24, 7:51 PM ESTFLASH FLOOD1 Nw Anchorage, KYWATER RESCUE ON THE INTERSECTION OF NUTWOOD RD AND EVERGREEN RD.
Feb 24, 8:00 PM ESTFLASH FLOOD1 Sse Lyndon, KYSHELBYVILLE RD AND HURSTBOURNE PKWY INTERSECTION. RIGHT LANE FLOODED, CAR SUBMERGED.
Feb 24, 9:23 PM ESTFLASH FLOOD5 Ene West Point, KYBULLITT COUNTY KY 1526 HAS BEEN CLOSED BETWEEN MILE MARKER 1 AND 2 (NEAR KY 44) DUE TO A MUDSLIDE.
Feb 24, 9:50 PM ESTFLASH FLOOD5 S Valley Station, KYPORTION OF THE ROAD WASHED OUT ON WEAVERS RUN ROAD.

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

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 11.3 hours before the alert went out and 218 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, Cncnati-Daytn, OH at 12:00Z on 2018-02-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Cncnati-Daytn, OH at 12:00Z on 2018-02-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 50 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
627 m above ground
0-6 km bulk shear
75 kt
0-1 km storm-relative helicity
50 m²/s²
0-3 km storm-relative helicity
224 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

509 
WGUS53 KLMK 242315
FFWLMK
INC019-043-KYC029-111-250245-
/O.NEW.KLMK.FF.W.0002.180224T2315Z-180225T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Louisville KY
615 PM EST SAT FEB 24 2018

The National Weather Service in Louisville has issued a

* Flash Flood Warning for...
  Southwestern Clark County in south central Indiana...
  Floyd County in south central Indiana...
  Jefferson County in central Kentucky...
  Northwestern Bullitt County in central Kentucky...

* Until 945 PM EST

* At 613 PM EST, Doppler radar indicated thunderstorms producing 
  heavy rain moving into the Louisville metro. Expect 1 to 2 inches 
  to fall quickly over the next 1 to 3 hours. Localized higher 
  amounts likely. Flash flooding is expected to begin shortly and 
  last through the evening hours.0

* Some locations that will experience flooding include...
  Louisville, Jeffersonville, New Albany, Jeffersontown, St.
  Matthews, Shively, Shepherdsville, Lyndon, Middletown and Douglass
  Hills.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be especially cautious at night when it is harder to recognize the
dangers of flooding.

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, urban areas, highways, streets and underpasses as
well as other drainage areas and low lying spots.

&&

LAT...LON 3840 8593 3841 8569 3835 8558 3834 8558
      3834 8556 3829 8547 3826 8541 3812 8543
      3798 8577 3794 8590 3799 8591 3800 8595
      3803 8592 3809 8591 3814 8591 3818 8590
      3842 8603

$$

ZT
3 follow-up statements
696 
WGUS73 KLMK 242354
FFSLMK

Flash Flood Statement
National Weather Service Louisville KY
654 PM EST SAT FEB 24 2018

INC019-043-KYC029-111-250245-
/O.CON.KLMK.FF.W.0002.000000T0000Z-180225T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Clark IN-Floyd IN-Jefferson KY-Bullitt KY-
654 PM EST SAT FEB 24 2018

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 945 PM EST FOR
SOUTHWESTERN CLARK...FLOYD...JEFFERSON AND NORTHWESTERN BULLITT
COUNTIES...

At 653 PM EST, trained weather spotters reported thunderstorms 
producing heavy rain and flash flooding across Louisville metro. Up 
to two inches of rain have already fallen. Flash flooding is 
expected to continue as more thunderstorms move into the area.

Some locations that will experience flooding include...
Louisville, Jeffersonville, New Albany, Jeffersontown, St. Matthews,
Shively, Shepherdsville, Lyndon, Middletown and Douglass Hills.

Additional rainfall amounts of 1 to locally 2 inches are possible in 
the warned area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be especially cautious at night when it is harder to recognize the
dangers of flooding.

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, urban areas, highways, streets and underpasses as
well as other drainage areas and low lying spots.

&&

LAT...LON 3840 8593 3841 8569 3835 8558 3834 8558
      3834 8556 3829 8547 3826 8541 3812 8543
      3798 8577 3794 8590 3799 8591 3800 8595
      3803 8592 3809 8591 3814 8591 3818 8590
      3842 8603

$$

ZT
136 
WGUS73 KLMK 250014
FFSLMK

Flash Flood Statement
National Weather Service Louisville KY
714 PM EST SAT FEB 24 2018

INC019-043-KYC029-111-250245-
/O.CON.KLMK.FF.W.0002.000000T0000Z-180225T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Clark IN-Floyd IN-Jefferson KY-Bullitt KY-
714 PM EST SAT FEB 24 2018

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 945 PM EST FOR
SOUTHWESTERN CLARK...FLOYD...JEFFERSON AND NORTHWESTERN BULLITT
COUNTIES...

At 712 PM EST, local law enforcement reported extremely heavy rain 
due to a thunderstorm over Jefferson County Kentucky and Louisville 
metro. Up to two inches of rain have already fallen. Flash flooding 
is occurring. There are numerous reports of stranded vehicles, water 
reaching the top of cars. This is a serious situation! Please avoid 
travel across Louisville metro. 

Some locations that will experience flooding include...
Louisville, Jeffersonville, New Albany, Jeffersontown, St. Matthews,
Shively, Shepherdsville, Lyndon, Middletown and Douglass Hills.

Additional rainfall amounts of 1 to 2 inches are possible in the 
warned area through 9 pm. More storms will cross the area overnight 
as well. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be especially cautious at night when it is harder to recognize the
dangers of flooding.

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, urban areas, highways, streets and underpasses as
well as other drainage areas and low lying spots.

&&

LAT...LON 3840 8593 3841 8569 3835 8558 3834 8558
      3834 8556 3829 8547 3826 8541 3812 8543
      3798 8577 3794 8590 3799 8591 3800 8595
      3803 8592 3809 8591 3814 8591 3818 8590
      3842 8603

$$

ZT
816 
WGUS73 KLMK 250135
FFSLMK

Flash Flood Statement
National Weather Service Louisville KY
835 PM EST SAT FEB 24 2018

INC019-043-KYC029-111-250245-
/O.CON.KLMK.FF.W.0002.000000T0000Z-180225T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Clark IN-Floyd IN-Jefferson KY-Bullitt KY-
835 PM EST SAT FEB 24 2018

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 945 PM EST FOR
SOUTHWESTERN CLARK...FLOYD...JEFFERSON AND NORTHWESTERN BULLITT
COUNTIES...

At 830 PM EST, NWS Doppler radar indicated that heavy rain had ended 
for the time being across the warned area. However, there have been 
reports of water over roads, especially over parts of south-central 
and eastern Jefferson County, Kentucky. Some creeks and small 
streams are out of their banks.   

Additional heavy rain, and likely additional flash flooding, will 
occur in the warned area later this evening as a band of 
thunderstorms moves in from the west.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles. Be especially cautious at night when it is 
harder to recognize the dangers of flooding.

&&

LAT...LON 3840 8593 3841 8569 3835 8558 3834 8558
      3834 8556 3829 8547 3826 8541 3812 8543
      3798 8577 3794 8590 3799 8591 3800 8595
      3803 8592 3809 8591 3814 8591 3818 8590
      3842 8603

$$

TWF

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 23, 9:54 PM ESTAreal Flood WarningLMKButler, Edmonson, Grayson, Logan, Warren6 hr
Feb 24, 12:57 AM ESTRiver Flood WarningLMKBullitt3 days
Feb 24, 9:26 AM ESTRiver Flood WarningLMKBourbon37 hr
Feb 24, 3:57 PM ESTRiver Flood AdvisoryLMKHart36 hr
Feb 24, 3:57 PM ESTSpecial Weather StatementLMKButler33 min
Feb 24, 4:29 PM ESTSpecial Weather StatementLMKGrayson31 min
Feb 24, 4:46 PM ESTSpecial Weather StatementLMKLogan29 min
Feb 24, 4:58 PM ESTSevere Thunderstorm WarningLMKLogan, Simpson32 min
Feb 24, 5:06 PM ESTTornado WarningLMKLogan, Simpson24 min
Feb 24, 5:20 PM ESTTornado WarningLMKLogan, Simpson, Warren25 min
Feb 24, 6:06 PM ESTAreal Flood WarningLMKMeade12 hr
Feb 24, 6:47 PM ESTFlash Flood WarningLMKHenry, Oldham, Trimble4 hr
Feb 24, 3:39 PM ESTRiver Flood WarningLMKJefferson, Scott28 hr
Feb 24, 4:42 PM ESTRiver Flood WarningLMKHarrison, Washington32 hr

Nearby

Flash Flood Warnings in Kentucky, 2018Flash Flood Warnings in Indiana, 2018Every flash flood warning in 2018

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.