Alert archive / Kentucky / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 65, NWS Louisville, KY

July 13, 1987Laurel County, Whitley County, Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at Jul 13, 1987, 4:05 PM EDT for Laurel County, Whitley County, Kentucky. It was in force for 40 min.

The area

The counties it named.

The facts

Issued: Jul 13, 1987, 4:05 PM EDT (20:05 UTC)
Expired: Jul 13, 1987, 4:45 PM EDT
In force: 40 min
Issued by: NWS Louisville, KY
Area: Whole counties

Counties Laurel County, KY, 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

Huntington/Tri S, WV (KHTS), launched 12:00Z, 8.1 hours before the alert went out and 215 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: 511 J/kg
Mixed-layer CIN: -84 J/kg
Mixed-layer LCL: 881 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: 26 m²/s²
0-3 km storm-relative helicity: 47 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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, Jul 13, 2:10 PM EDT, 1 hour 55 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
205 PM EDT MON JUL 13 1987

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR MOS OF CENTRAL KENTUCKY
   UNTIL 8 PM EDT THE EVENING...

THUNDERSTORMS WERE SCATTERED OVER CENTRAL AND EASTERN KENTUCKY AT 2PM.
THE STRONGEST STORMS WERE LOCATED IN A LINE FROM TOMPKINSVILLE IN MONROE
COUNTY NORTH TO CORYDON IN HARRISON COUNTY INDIANA.  THESE STORMS ARE
CAPABLE OF PRODUCING VERY HEAVY RAIN...STRONG WINDS AND POSSIBLY SOME
SMALL HAIL AS THEY MOVE EAST AROUND 20 MPH.

THUNDERSTORMS WILL CONTINUE OVER CENTRAL AND EASTERN KENTUCKY FOR THE
NEXT FEW HOURS. OVER THE REST OF THE STATE WARM AND HUMID WEATHER
WILL PREVAIL.

AMMERMAN*

Special weather statement, Jul 13, 2:45 PM EDT, 1 hour 20 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LEXINGTON KY
240 PM EDT MON JUL 13 1987

...SEVERE THUNDERSTORM WATCH TILL 8 PM EDT TONIGHT...

NUMEROUS SHOWERS AND THUNDERSTORMS DOTTED EAST CENTRAL KENTUCKY
AT 2 35 PM.

RADAR SHOWED A NORTH SOUTH LINE OF THUNDERSTORMS BETWEEN
LOUISVILLE AND LEXINGTON MOVING EAST A 25 MPH.  THIS LINE OF
THUNDERSTORMS PRODUCED WIND GUSTS TO 43 MPH AT AIRPORT IN
LOUISVILLE AS IT PASSED OVER.  ALSO BRIEF TORRENTIAL RAIN HAS
OCCURRED WITH THUNDERSTORMS IN EAST CENTRAL KENTUCKY.

THE LINE OF THUNDERSTORMS TO THE WEST OF LEXINGTON WILL MOVE
INTO PORTIONS OF FRANKLIN..ANDERSON AND BOYLE COUNTIES BY ABOUT
3 PM EDT.

Special weather statement, Jul 13, 3:06 PM EDT, 59 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
305 PM EDT MON JUL 13 1987

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR MOST OF CENTRAL KENTUCKY
   UNTIL 8 PM EDT THE EVENING...

THUNDERSTORMS WERE SCATTERED OVER MOST OF KENTUCKY AT 3PM.  THE
STRONGEST STORMS WERE LOCATED OVER CLARK COUNTY INDIANA AND OVER HENRY
AND SCOTT COUNTIES IN KENTUCKY.  THESE STORMS ARE CAPABLE OF PRODUCING
VERY HEAVY RAIN...STRONG WINDS AND POSSI1BLY SOME SMALL HAIL AS THEY
MOVE EAST AROUND 20 MPH.

THUNDERSTORMS WILL CONTINUE OVER THE STATE FOR THE NEXT FEW HOURS.
OVER THE REST OF THE STATE WARM AND HUMID WEATHER WILL PREVAIL.

AMMERMAN

Special weather statement, Jul 13, 4:00 PM EDT, 5 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 13, 3:05 PM EDT	Flash Flood Warning	LMK	Fayette	55 min
Jul 13, 3:05 PM EDT	Severe Thunderstorm Warning	LMK	Fayette	55 min
Jul 13, 3:38 PM EDT	Tornado Warning	LMK	Franklin, Scott	42 min
Jul 13, 6:58 PM EDT	Flash Flood Warning	LMK	Jefferson	2 hr
Jul 13, 7:43 PM EDT	Flash Flood Warning	LMK	Bullitt, Nelson, Spencer	2 hr
Jul 13, 7:43 PM EDT	Flash Flood Warning	LMK	Shelby	2 hr

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; the sounding from the Mesonet's radiosonde archive.