Alert archive / Kentucky / Flash Flood Warnings in 1998

Flash Flood Warning 33, NWS Louisville, KY

June 23, 1998Hancock County, Kentucky

NWS Louisville, KY issued this flash flood warning at Jun 23, 1998, 1:51 AM CDT for Hancock County, Kentucky. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 23, 1998, 1:51 AM CDT (06:51 UTC)
Expired: Jun 23, 1998, 4:00 AM CDT
In force: 2 hr
Issued by: NWS Louisville, KY
Area: Whole counties

County Hancock County, KY

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 6.9 hours before the alert went out and 191 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: 2645 J/kg
Mixed-layer CIN: -4 J/kg
Mixed-layer LCL: 1476 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 31 m²/s²
0-3 km storm-relative helicity: 61 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSDF 230650
FFWSDF
KYC091-230900-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
251 AM EDT (151 AM CDT) TUE JUN 23 1998

THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  HANCOCK COUNTY IN NORTHWESTERN KENTUCKY

* UNTIL 400 AM CDT (500 AM EDT)

* AT 240 AM EDT (140 AM CDT)... NATIONAL WEATHER SERVICE DOPPLER
  RADAR INDICATED A LINE OF THUNDERSTORMS WITH VERY HEAVY RAIN
  FROM 50 MILES SOUTHWEST OF LOUISVILLE ACROSS HANCOCK COUNTY AND
  EXTENDING WEST INTO SOUTHWEST INDIANA...MOVING SOUTHEAST AT 25 MPH.

* NUMEROUS THUNDERSTORMS CONTINUE TO MOVE ACROSS HANCOCK COUNTY.  A
  CITIZEN REPORTED 1.6 INCHES OF RAIN IN HAWESVILLE.  RADAR ESTIMATES
  INDICATE RAINFALL RATES OF 1 TO 1.5 INCHES AN HOUR. THUNDERSTORMS
  WITH HEAVY RAIN WILL CONTINUE THROUGH 430 AM EDT (330 AM CDT).  AN
  ADDITIONAL 1 TO 2 INCHES OF RAIN IS POSSIBLE.

BE ESPECIALLY CAUTIOUS AT NIGHT WH<EN IT IS HARDER TO RECOGNIZE THE
DANGER OF FLOODING.

RNK

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, Jun 23, 1:31 AM CDT, 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LOUISVILLE KENTUCKY
231 AM EDT TUE JUN 23 1998

TIME(EDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0228 AM    HAYSVILLE                 IN    60 MPH TSTM GUST
06/23/98   DUBOIS                          POWER LINES DOWN
                                           REPORTED BY POLICE
                                           DEPARTMENT

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 23, 12:05 AM CDT	Severe Thunderstorm Warning	LMK	Hancock	35 min
Jun 23, 12:25 AM CDT	Severe Thunderstorm Warning	LMK	Breckinridge, Meade	35 min
Jun 23, 5:07 PM CDT	Severe Thunderstorm Warning	LMK	Hancock	23 min
Jun 23, 5:32 PM CDT	Severe Thunderstorm Warning	LMK	Breckinridge	28 min

Nearby

Flash Flood Warnings in Kentucky, 1998 Every flash flood warning in 1998

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.