Alert archive / Kentucky / Flash Flood Warnings in 1990

Flash Flood Warning 23, NWS Jackson, KY

December 18, 1990Jackson County, Kentucky

NWS Jackson, KY issued this flash flood warning at Dec 18, 1990, 3:55 PM EST for Jackson County, Kentucky. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
Dec 18, 1990, 3:55 PM EST (20:55 UTC)
Expired
Dec 18, 1990, 10:00 PM EST
In force
6 hr
Issued by
NWS Jackson, KY
Area
Whole counties

County Jackson 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

Huntington/Tri S, WV (KHTS), launched 12:00Z, 8.9 hours before the alert went out and 169 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, Huntington/Tri S, WV at 12:00Z on 1990-12-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Huntington/Tri S, WV at 12:00Z on 1990-12-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -109 square meters per square second.1939587897117Sfc1 km3 km6 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
573 m above ground
0-6 km bulk shear
91 kt
0-1 km storm-relative helicity
-109 m²/s²
0-3 km storm-relative helicity
316 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 KJKL 182055
FFWJKL
KYC109-190300-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON  KY
355 PM EST TUE DEC 18 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A FLOOD WARNING EFFECTIVE
UNTIL 1000 PM EST FOR PEOPLE IN THE FOLLOWING COUNTIES

   IN THE SOUTHEAST PART OF KENTUCKY
      JACKSON...LEE...WOLFE...MORGAN...OWSLY...BREATHITT AND MAGOFFIN

AT 345 PM EST...FLOODING CONTINUED IN JACKSON...BREATHITT AND MAGOFFIN
COUNTIES...BUT AN AREA OF MODERATE TO HEAVY RAIN OVER CENTRAL KENTUCKY
WILL MOVE INTO SOUTHEAST KENTUCKY BY 430 PM. WITH THE GROUND SATURATED
AND FLOODING OCCURRING IN SOME AREAS...MOST CREEKS AND STREAMS IN THESE
COUNTIES WILL COME OUT OF THEIR BANKS.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROAD. 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 FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS IMMINENT.
MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS
BRIDGES..DIPS OR LOW SPOTS IF WATER COVERS THE ROAD. NEVER TRY TO
CROSS A FLOWING STREAM..EVEN A SMALL ONE..ON FOOT. TO ESCA9PE RISING
WATER..MOVE UP TO HIGHER GROUND.

ASK THE NEAREST LAW ENFORCEMENT AGENCY TO RELAY YOUR REPORTS OF
SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE OFFICE IN JACKSON

OGREN

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 18, 9:39 AM ESTFlash Flood WarningJKLJackson8 hr
Dec 18, 11:23 AM ESTFlash Flood WarningJKLLewis4 hr
Dec 18, 1:39 PM ESTFlash Flood WarningJKLLewis4 hr
Dec 18, 1:45 PM ESTFlash Flood WarningJKLJackson4 hr
Dec 18, 3:19 PM ESTFlash Flood WarningJKLJohnson3 hr
Dec 18, 4:55 PM ESTFlash Flood WarningJKLBoyd, Carter, Greenup, Lewis3 hr
Dec 18, 4:55 PM ESTFlash Flood WarningJKLJohnson, Lawrence, Martin3 hr
Dec 18, 4:55 PM ESTFlash Flood WarningJKLElliott3 hr

Nearby

Flash Flood Warnings in Kentucky, 1990Every flash flood warning in 1990

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.