Alert archive / Kentucky / Flash Flood Warnings in 1986

Flash Flood Warning 5, NWS Louisville, KY

November 9, 1986Whitley County, Kentucky

NWS Louisville, KY issued this flash flood warning at Nov 9, 1986, 1:15 AM EST for Whitley County, Kentucky. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Nov 9, 1986, 1:15 AM EST (06:15 UTC)
Expired
Nov 9, 1986, 5:00 AM EST
In force
4 hr
Issued by
NWS Louisville, KY
Area
Whole counties

County Whitley 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

Nashville Metro, TN (KBNA), launched 00:00Z, 6.3 hours before the alert went out and 230 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 1986-11-09Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 00:00Z on 1986-11-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
663 m above ground
0-6 km bulk shear
0 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
0 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 
TTAAOO KSDF 090615
FFWSDF
KYC235-091000-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
115 AM EST SUN NOV  9 1986
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING
EFFECTIVE UNTIL  500 AM EST FOR PEOPLE IN THE FOLLOWING COUNTIES:
 
IN SOUTH CENTRAL KENTUCKY
          ..WHITLEY

AT 110 AM EST HEAVY RAINS WERE OCCURRING OVER WHITLEY COUNTY. CREEKS
AND STREAMS WERE ALREADY SWOLLEN TO BANKFUL AND CONTINUED HEAVY RAINS
WILL RESULT IN FLASH FLOODING OF CREEKS AND STREAMS ALL ACROSS
WHITLEY COUNTY INCLUDING THE CITY OF WILLIAMSBURG. HEAVY RAINS ARE
EXPECTED TO CONTINUE FOR THE NEXT FEW HOURS.
 
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE
THE DANGERS OF FLOODS AND FLASH FLOODS.  IF FLASH FLOODING IS
OBSERVED...ACT QUICKLY.  MOVE UP TO ESCAPE FLOOD WATERS.  DO NOT
STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
 
A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT.  MOST FLASH FLOOD DEATHS 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 RICSING WATER MOVE UP TO HIGHER GROUND.
 
SCHOLZ

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 8, 10:45 PM ESTFlash Flood WarningLMKLincoln, Rockcastle3 hr
Nov 8, 11:02 PM ESTFlash Flood WarningLMKPowell4 hr
Nov 9, 12:25 AM ESTFlash Flood WarningLMKLaurel4 hr
Nov 9, 1:43 AM ESTFlash Flood WarningLMKMcCreary4 hr
Nov 9, 2:15 AM ESTFlash Flood WarningLMKPulaski, Rockcastle4 hr
Nov 9, 2:15 AM ESTFlash Flood WarningLMKClinton, Wayne4 hr
Nov 9, 5:06 AM ESTFlash Flood WarningLMKMcCreary, Whitley4 hr

Nearby

Flash Flood Warnings in Kentucky, 1986Every flash flood warning in 1986

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.