Alert archive / Kentucky / Flash Flood Warnings in 2002

Flash Flood Warning 70, NWS Jackson, KY

July 20, 2002Laurel County, Kentucky

NWS Jackson, KY issued this flash flood warning at Jul 20, 2002, 5:54 PM EDT for Laurel 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 20, 2002, 5:54 PM EDT (21:54 UTC)
Expired: Jul 20, 2002, 8:45 PM EDT
In force: 3 hr
Issued by: NWS Jackson, KY
Area: Counties, with a storm outline in the text

County Laurel County, KY

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 9.9 hours before the alert went out and 248 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 631 J/kg
Mixed-layer CIN: -55 J/kg
Mixed-layer LCL: 837 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 28 m²/s²
0-3 km storm-relative helicity: 54 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KJKL 202154
FFWJKL
KYC125-210045-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON KY
546 PM EDT SAT JUL 20 2002

THE NATIONAL WEATHER SERVICE IN JACKSON KY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  LAUREL COUNTY.

* UNTIL 845 PM EDT.

* AT 542 PM EDT...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY 
  RAIN FALLING FROM A NEARLY STATIONARY THUNDERSTORM NEAR LONDON.

NATIONAL WEATHER SERVICE DOPPLER RADAR ESTIMATES THAT BETWEEN ONE AND 
TWO INCHES OF RAIN HAS FALLEN IN THE PAST HOUR OVER CENTRAL LAUREL 
COUNTY.

COUNTY OFFICIALS REPORTED THAT AROUND ONE FOOT OF WATER WAS FLOWING 
OVER NORTH MILL STREET IN LONDON. SINCE THIS THUNDERSTORM IS NEARLY 
STATIONARY AND WILL REMAIN OVER CENTRAL PORTIONS OF LAUREL COUNTY 
FOR THE NEXT HOUR OR TWO...ADDITIONAL FLASH FLOODING OF ROADS AND 
SMALL CREEKS AND STREAMS IS LIKELY IN AND NEAR LONDON.

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

TO REPORT SEVERE WEATHER OR FLASH FLOODING HAVE THE NEAREST LAW 
ENFORCEMENT AGENCY RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE 
FORECAST OFFICE IN JACKSON KY.

LAT...LON 3716 8424 3703 8408 3713 8400 3725 8407

PELTON

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 20, 6:18 AM EDT	Flash Flood Warning	JKL	Pike	3 hr
Jul 20, 8:06 AM EDT	Flash Flood Warning	JKL	Knott	3 hr
Jul 20, 9:05 AM EDT	Flash Flood Warning	JKL	Magoffin	3 hr
Jul 20, 10:15 AM EDT	Flash Flood Warning	JKL	Pulaski	3 hr
Jul 20, 10:22 AM EDT	Flash Flood Warning	JKL	Pulaski	3 hr
Jul 20, 3:01 PM EDT	Flash Flood Warning	JKL	Wayne	119 min

Nearby

Flash Flood Warnings in Kentucky, 2002 Every flash flood warning in 2002

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.