Alert archive / Kentucky / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 13, NWS Louisville, KY

June 12, 1987Hardin County, Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at Jun 12, 1987, 8:48 PM EDT for Hardin County, Kentucky. It was in force for 57 min. 3 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jun 12, 1987, 8:48 PM EDT (00:48 UTC)
Expired: Jun 12, 1987, 9:45 PM EDT
In force: 57 min
Issued by: NWS Louisville, KY
Area: Whole counties

County Hardin County, KY

The radar

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

What was reported inside it

Time	Report	Where
Jun 12, 9:00 PM EDT	Hail 1	Hardin, KY
Jun 12, 9:40 PM EDT	Thunderstorm Wind 0	Hardin, KY
Jun 12, 9:55 PM EDT	Thunderstorm Wind 0	Hardin, KY

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 0.8 hours before the alert went out and 183 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: 194 J/kg
Mixed-layer CIN: -30 J/kg
Mixed-layer LCL: 547 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 91 m²/s²
0-3 km storm-relative helicity: 97 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSDF 130048
SVRSDF
KYC093-130145-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
848 PM EDT FRI JUN 12 1987
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL  945 PM EDT FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN NORTH CENTRAL KENTUCKY
          ...HARDIN
 
AT 845 PM EDT RADAR INDICATED A SEVERE THUNDERSTORM NEAR WEST
POINT KENTUCKY LOCATED 14 MILES SOUTHWEST OF LOUISVILLE IN NORTHERN
HARDIN COUNTY. THIS STORM IS MOVING SOUTHEAST AT 20 MPH ACROSS HARDIN
COUNTY. LARGE HAIL WAS REPORTED FALLING IN THE SAME AREA BY THE WEST
POINT POLICE DEPARTMENT.
 
IF YOU ARE IN THE PATH OF THESE STORMS...MOVE TO A SA=FE SHELTER
QUICKLY AND PREPARE FOR STRONG DAMAGING WIND...LARGE HAIL...VERY
HEAVY RAIN AND DANGEROUS LIGHTNING. THESE SEVERE THUNDERSTORMS
CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING...SO BE
ALERT IF SEVERE WEATHER THREATENS.
POOLE

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Jun 12, 6:16 PM EDT, 2 hours 32 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LEXINGTON KY
615 PM EDT FRI JUN 12 1987

AT 610 PM EDT...THUNDERSTORMS WERE SCATTERED ACROSS EAST CENTRAL
KENTUCKY. THE STRONGEST STORMS WERE LOCATED OVER NORTHERN BOYLE
COUNTY..NORTH OF DANVILLE AND OVER CENTRAL JESSAMINE COUNTY..NEAR
NICHOLASVILLE.

HEAVY RAIN...STRONG GUSTY WINDS AND DEADLY LIGHTNING STRIKES CAN
BE EXPECTED WITH THE PASSAGE OF THESE STORMS. RECREATION INTERESTS
IN AND AROUND THE LAKE HERRINGTON AREA SHOULD SEEK INDOOR SHELTER.

THE THUNDERSTORMS WERE MOVING EAST AT 30 MPH AND WILL CROSS INTO
NORTHERN GARRARD AND NORTHERN MADISON COUNTIES BETWEEN 615 PM AND
700 PM EDT THIS FRIDAY EVENING.
WHITE

Special weather statement, Jun 12, 7:09 PM EDT, 1 hour 39 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
700 PM EDT FRI JUN 12 1987

STRONG THUNDERSTORMS ARE MOVING SOUTH OUT OF SOUTHERN INDIANA AND
WILL APPROACH NORTHERN KENTUCKY ALONG THE OHIO RIVER BETWEEN 7
AND 9 PM EDT.

THESE STRONG THUNDERSTORMS STRETCHED FROM VINCENNES INDIANA
WEST ACROSS SCOTTSBURG INDIANA...LOCATED 30 MILES NORTH OF
LOUISVILLE...ON WEST INTO CINCINNATI. THESE STORMS WILL LIKELY
PRODUCE VERY HEAVY RAIN...STRONG GUSTY WINDS...DANGEROUS CLOUD TO
GROUND LIGHTNING...AND POSSIBLY SOME SMALL HAIL.

PERSONS IN THE PATH OF THESE STRONG THUNDERSTORMS SHOULD MOVE TO
INDOOR SHELTER WHEN STORMS APPROACH AND CONTINUE TO LISTEN TO NOAA
WEATHER RADIO FOR FURTHER UPDATES.

OTHER THUNDERSTORMS STRETCH FROM SOUTH OF LEXINGTON TO FORT KNOX.
A SOUTHEAST MOVEMENT OF 20 MPH WAS OBSERVED.

POOLE

Special weather statement, Jun 12, 8:33 PM EDT, 15 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LEXINGTON KY
830 PM EDT FRI JUN 12 1987

AT 825 PM EDT...THUNDERSTORMS WERE RAPIDLY DEVELOPING ACROSS EAST
CENTRAL KENTUCKY. THE STRONGEST STORM WERE LOCATED OVER NORTHERN
MERCER COUNTY NEAR SALVISA...18 MILES SOUTHWEST OF LEXINGTON.
OTHER STRONG THUNDERSTORMS WERE LOCATED OVER SOUTHERN WOODFORD AND
EASTERN FAYETTE COUNTIES.

THESE STORMS WERE MOVING SOUTHEAST AT 30 MPH. PEOPLE IN EASTERN MERCER
..SOUTHERN WOODFORD..WESTERN JESSAMINE AND NORTHERN GARRARD COUNTIES
SHOULD REMAIN ALERT FOR THE POSSIBILITY OF HEAVY RAIN..STRONG GUSTY
WINDS AND DEADLY LIGHTNING STRIKES WITH THE PASSAGE OF THESE STORMS.

IF YOU FIND YOURSELF IN THE PATH OF THUND'ERSTORMS..SEEK SAFE INDOOR
SHELTER. RECREATIONAL INTERESTS IN AND AROUND LAKE HERRINGTON SHOULD
ONCE AGAIN SEEK INDOOR SHELTER AS THUNDERSTORMS PASS YOUR AREA.
WHITE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 12, 8:05 PM EDT	Severe Thunderstorm Warning	LMK	Jefferson	40 min
Jun 12, 9:42 PM EDT	Severe Thunderstorm Warning	LMK	Larue, Nelson	63 min
Jun 13, 7:19 PM EDT	Severe Thunderstorm Warning	LMK	Jefferson	41 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 1987 Every severe thunderstorm 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.