Alert archive / Kentucky / Flash Flood Warnings in 1987

Flash Flood Warning 4, NWS Louisville, KY

July 13, 1987Jefferson County, Kentucky

NWS Louisville, KY issued this flash flood warning at Jul 13, 1987, 6:58 PM EDT for Jefferson County, Kentucky. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued
Jul 13, 1987, 6:58 PM EDT (22:58 UTC)
Expired
Jul 13, 1987, 9:00 PM EDT
In force
2 hr
Issued by
NWS Louisville, KY
Area
Whole counties

County Jefferson County, KY

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Dayton/James M C, OH (KDAY), launched 12:00Z, 11.0 hours before the alert went out and 228 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, Dayton/James M C, OH at 12:00Z on 1987-07-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 56 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, Dayton/James M C, OH at 12:00Z on 1987-07-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 46 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
56 J/kg
Mixed-layer CIN
-84 J/kg
Mixed-layer LCL
610 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
46 m²/s²
0-3 km storm-relative helicity
71 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KSDF 132256
FFWSDF
KYC111-140100-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
658 PM EDT MON JUL 13 1987
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING
EFFECTIVE UNTIL  900 PM EDT FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN NORTH CENTRAL KENTUCKY
          ...JEFFERSON
 
AT 650  VERY HEAVY RAINS WERE OCCURRING OVER THE LOUISVILLE
METROPOLITAN AREA. REPORTS OF STREET FLOODING FROM THE LOUISVILLE
POLICE DEPARTMENT HAVE BEEN RECEIVED FROM THE TAYLORSVILLE ROAD AND
PRESTON HIGHWAYS. FLOODING IS LIKELY IN LOW AREAS AND ALONG STREAMS
THROUGOUT JEFFERSON COUNTY.
 
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY.  THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO
CROSS SAFELY.  VEHICLES CAUGHT IN RISING WATER SHOULD BE
ABANDONED QUICKLY.  MOVE TO HIGHER GROUND.
 
A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT.  MOST FLASH FLOOD DEUATHS OCCUR IN AUTOMOBILES.  DO NOT
ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS
THE ROADWAY.  NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL
ONE...ON FOOT.  TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.
 
SCHOLZ

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.

In the hours before

Local storm report, Jul 13, 4:13 PM EDT, 2 hours 45 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE LEXINGTON KENTUCKY
415PM EDT MON JUL 13 1987

TIME                 EVENT
330PM EDT            NUMEROUS FUNNEL CLOUD REPORTS ACROSS FRANKLIN COUNTY
                     AND IN FRANKFORT. NEAR TOUCHDOWN REPORTED BY STATE
                     EMPLOYEE NEAR CAPITOL.
                     NEAR ANDERSON COUNTY LINE TREES DOWN AND STRUCTURAL
                     DAMAGE TO BARNS NEAR PATH OF TORNADO.
345PMp  EDT           SCOTT COUNTY TWO FUNNEL CLOUDS NEAR MINERVILLE..
                     HAIL HALF INCH
Special weather statement, Jul 13, 4:15 PM EDT, 2 hours 43 minutes before
SPECIAL WEATHER STATEMENT AND KENTUCKY WEATHER SUMMARY
NATIONAL WEATHER SERVICE LOUISVILLE KY
430 PM EDT MON JUL 13 1987

...SEVERE THUNDERSTORM WATCH UNTIL 8 PM EDT PARTS OF CENTRAL AND EAST
   KENTUCKY...

A COLD FRONT ADVANCING INTO THE LOWER OHIO VALLEY SET OFF THUNDERSTORMS
OVER MUCH OF WEST AND CENTRAL KENTUCKY DURING THE DAY. SOME PRODUCED
DAMAGING WIND...KNOCKING DOWN TREES AND POWER LINES IN A FEW PLACES.
A TORNADO WAS SPOTTED NEAR FRANKFORT...BUT LITTLE DAMAGE WAS REPORTED.

VERY WARM AND HUMID AIR AHEAD OF THE FRONT PROVIDED KEY INGREDIENTS
FOR THE DEVELOPMENT OF THUNDERSTORMS. AS THE FRONT MOVES THROUGH
KENTUCKY TONIGHT AND TUESDAY MORNING...MOST OF THE STATE WILL RECEIVE
SOME RAINFALL. SOME STORMS WILL GENERATE GENEROUS AMOUNTS OF RAIN.

PERSONS IN THE PATHS OF ANY THUNDERSTORMS WILL WANT TO TAKE SHELTER
UNTIL THEY PASS. DANGEROUS LIGHTNING WILL ACCOMPANY HEAVY RAIN AND
STRONG GUSTY WINDS IN THE STORMS.

COOLER AND DRuIER AIR BEHIND THE COLD FRONT WILL BRING MUCH MORE
COMFORTABLE CONDITIONS TO THE LOWER OHIO VALLEY FOR MUCH OF THE
REST OF THE WEEK. THE NEXT WARMING TREND WILL BEGIN ABOUT FRIDAY.

REITMEYER
Special weather statement, Jul 13, 5:17 PM EDT, 1 hour 41 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
515 PM EDT MON JUL 13 1987

...SEVERE THUNDERSTORM WATCH UNTIL 8 PM EDT PARTS OF CENTRAL AND EAST
   KENTUCKY...

AT 510 PM EDT STRONG THUNDERSTORMS WERE MOVING THROUGH GRAYSON AND
EDMONSON COUNTIES OF CENTRAL KENTUCKY. THESE STORMS WILL BE MOVING
INTO SOUTHERN HARDIN AND HART COUNTY BEFORE 540 PM EDT. VERY STRONG
WINDS AND VERY HEAVY RAINS ARE LIKELY WITH THESE STORMS. THE STORM
WAS NEAR LEITCHFIELD...ABOUT 60 MILES SOUTHEAST OF LOUISVILLE.

OTHER STRONG THUNDERSTORMS CONTINUED OVER EAST KENTUCKY FROM EAST OF
COVINGTON SOUTH TO NEAR MOREHEAD AND LONDON.

MANY OF THESE STORMS ARE DANGEROUS AND WILL PRODUCE STRONG GUSTY WINDS
HEAVY RAINS AND DANGEROUS LIGHTNING. BE PREPARED TO SEEK A PLACE OF
SAFETY IF THE WEATHER BECOMES UNUSUALLY THREATENING.
SCHOLZ
Special weather statement, Jul 13, 5:23 PM EDT, 1 hour 35 minutes before
SPECIAL WEATHER STATEMENT   CORRECTION
NATIONAL WEATHER SERVICE LOUISVILLE KY
515 PM EDT MON JUL 13 1987

...SEVERE THUNDERSTORM WATCH UNTIL 8 PM EDT PARTS OF CENTRAL AND EAST
   KENTUCKY...

AT 510 PM EDT STRONG THUNDERSTORMS WERE MOVING THROUGH GRAYSON AND
EDMONSON COUNTIES OF CENTRAL KENTUCKY. THESE STORMS WILL BE MOVING
INTO SOUTHERN HARDIN AND HART COUNTY BEFORE 540 PM EDT. VERY STRONG
WINDS AND VERY HEAVY RAINS ARE LIKELY WITH THESE STORMS. THE STRONGEST
STORM WAS NEAR LEITCHFIELD IN GRAYSON COUNTY...ABOUT 60 MILES SOUTHEAST
OF LOUISVILLE.

OTHER STRONG THUNDERSTORMS CONTINUED OVER EAST KENTUCKY FROM EAST OF
COVINGTON SOUTH TO NEAR MOREHEAD AND LONDON.

MANY OF THESE STORMS ARE DANGEROUS AND WILL PRODUCE STRONG GUSTY WINDS
HEAVY RAINS AND DANGEROUS LIGHTNING. BE PREPARED TO SEEK A PLACE OF
SAFETY IF THE WEATHER BECOMES UNUSUALLY THREATENING.

SCHOLZ
Local storm report, Jul 13, 5:40 PM EDT, 1 hour 18 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE LEXINGTON KENTUCKY
540PM EDT MON JUL 13 1987

TIME                 EVENT
243PM EDT            FRANKLIN COUNTY JUST NORTH OF FRANKFORT ON OWENTON
                     RD US 421...ONE FATALITY DUE TO LIGHTNING STRIKE

330PM EDT            WOODFORD COUNTY...APPARENT TORNADO TOUCHDOWN DID
                     DAMAGE TO HOUSE NEAR BUCKLEY WILDLIFE REFUGE ALSO
                     POWERLINE AND TREES DO"WN WITH LOCAL ROAD CLOSED.
                     THIS APPEARS TO BE SAME STORM THAT WAS REPORTED IN
                     FRANKLIN COUNTY AND FRANKFORT ABOUT SAME TIME.
Special weather statement, Jul 13, 6:18 PM EDT, 40 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
615 PM EDT MON JUL 13 1987

...SEVERE THUNDERSTORM WATCH UNTIL 8 PM EDT PARTS OF CENTRAL AND EAST
   KENTUCKY...

AT 610 PM EDT STRONG THUNDERSTORMS WERE MOVING THROUGH CENTRAL
KENTUCKY. A VERY STRONG STORM WAS MOVING INTO THE LOUISVILLE
METROPOLITAN AREA AND OTHER STRONG STORMS WERE MOVING ACROSS SOUTHERN
HARDIN COUNTY NEAR UPTON AND SOUTHERN LARUE SOUTH OF HODGENVILLE.

THESE STORMS ARE VERY STRONG AND CAPABLE OF PRODUCING VERY STRONG WINDS
VERY HEAVY RAINS AND DANGEROUS LIGHTNING. PONDING OF WATER IS LIKELY
IN LOW AREAS.

BE PREPARED TO SEEK A PLACE OF SAFETY IF THE WEATHER BECOMES UNUSUALLY
THREATENING. DO NOT 9DRIVE THROUGH ROADS COVERED BY WATER. IF WATER
BEGINS TO RISE...MOVE TO HIGHER GROUND.
<
SCHOLZ

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 13, 3:05 PM EDTFlash Flood WarningLMKFayette55 min
Jul 13, 3:05 PM EDTSevere Thunderstorm WarningLMKFayette55 min
Jul 13, 3:38 PM EDTTornado WarningLMKFranklin, Scott42 min
Jul 13, 4:05 PM EDTSevere Thunderstorm WarningLMKLaurel, Whitley40 min
Jul 13, 7:43 PM EDTFlash Flood WarningLMKBullitt, Nelson, Spencer2 hr
Jul 13, 7:43 PM EDTFlash Flood WarningLMKShelby2 hr

Nearby

Flash Flood Warnings in Kentucky, 1987Every flash flood warning in 1987

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.