Alert archive / Kentucky / Tornado Warnings in 1990

Tornado Warning 27, NWS Louisville, KY

September 7, 1990Oldham County, Kentucky; Clark County, Indiana

NWS Louisville, KY issued this tornado warning at Sep 7, 1990, 5:20 PM EDT for Oldham County, Kentucky; Clark County, Indiana. It was in force for 40 min. 1 report 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
Sep 7, 1990, 5:20 PM EDT (21:20 UTC)
Expired
Sep 7, 1990, 6:00 PM EDT
In force
40 min
Issued by
NWS Louisville, KY
Area
Whole counties

Counties Clark County, IN, Oldham 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

TimeReportWhereRemark
Sep 7, 5:39 PM EDTHail 1Oldham, 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

Dayton/James M C, OH (KDAY), launched 12:00Z, 9.3 hours before the alert went out and 201 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, Dayton/James M C, OH at 12:00Z on 1990-09-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1234 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Dayton/James M C, OH at 12:00Z on 1990-09-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 209 square meters per square second.193958Sfc1 km3 km6 km9 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
1234 J/kg
Mixed-layer CIN
-131 J/kg
Mixed-layer LCL
1461 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
209 m²/s²
0-3 km storm-relative helicity
151 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.9

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSDF 072121
TORSDF
INC019-KYC185-072200-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
520 PM EDT FRI SEP 7 1990
 
THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  600 PM EDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN SOUTH INDIANA
          ...CLARK
IN NORTH CENTRAL KENTUCKY
          ...OLDHAM
 
AT 518 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED A POSSIBLE
TORNADO 20 MILES NORTH OF LOUISVILLE OR 3 MILES WEST OF CHARLESTOWN
INDIANA...MOVING EAST AT 25 MPH. PERSONS IN CHARLESTOWN SHOULD TAKE
COVER IMMEDIATELY.
 
 
IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS A
BASEMENT.  GET UNDER A WORKBENCH OR PIECE OF STURDY FURNITURE.
IF NO BASEMENT IS AVAILABLE...SEEK SHELTER IN AN INTERIOR ROOM
SUCH AS A CLOSET ON THE LOWEST FLOOR.  USE BLANKETS...PILLOWS...
OR CUSHIONS TO COVER YOUR BODY.  AVOID WINDOWS.
 
HOLDERBACH

What forecasters said that day

The local office's own words before this tornado 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, Sep 7, 3:02 PM EDT, 2 hours 18 minutes before
KYZ007-072100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LEXINGTON KY
3 PM EDT FRI SEP 7 1990

...SEVERE THUNDERSTORM WATCH FOR PARTS OF EAST CENTRAL KENTUCKY...

A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR PARTS OF EAST CENTRAL
KENTUCKY UNTIL 6 PM THIS EVENING. AT 3 PM...SKIES WERE PARTLY TO MOSTLY
SUNNY AS TEMPERATURES HAD RISEN INTO THE LOWER 90S.

PARTLY TO MOSTLY SUNNY SKIES WILL CONTINUE OVER THE CENTRAL BLUEGRASS
THIS AFTERNO	ON THROUGH 5 PM. TEMPERATURES WILL BE RISING A DEGREE OR
TWO MORE.

ALTHOUGH THERE ARE NO SHOWERS OR THUNDERSTORMS IN KENTUCKY THIS
AFTERNOON...DEVELOPMENT COULD BE STRONG AND RAPID.
ULLOM
Special weather statement, Sep 7, 3:10 PM EDT, 2 hours 10 minutes before
INZ15-KYZ04-071900-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
315 PM EDT FRI SEP 7 1990

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 6 PM EDT...

A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR SOUTHERN INDIANA AND
NORTHERN KENTUCKY UNTIL 6 PM EDT.  AT 3 PM...THE STORMS WERE BETWEEN
BLOOMINGTON AND INDIANAPOLIS INDIANA.  THESE  STORMS WERE MOVING
SOUTHEAST AROUND 20 MPH AND WILL NOT MOVE INTO KENTUCKY UNTIL AROUND
5 PM.

HAZY SUNSHINE COVERED KENTUCKY WITH TEMPERATURES IN THE MID AND
UPPER 90.  HEAT INDICES RANGED FROM 100 TO 105 DEGREES.

AMMERMAN
Special weather statement, Sep 7, 3:32 PM EDT, 1 hour 48 minutes before
INZ15-KYZ04-072030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
330 PM EDT FRI SEP 7 1990

...STIFFLING HEAT SEERS KENTUCKY AGAIN...

SHORTLY AFTER 3PM EDT THE THERMOMETER AT STANDIFORD FIELD REGISTERED
99 DEGREES.  THIS TIES THE 99 DEGREES RECORDED ON JULY THE 9 AND 10
FOR THE HOTTEST TEMPERATURE THIS SUMMER. THE RECORD HIGH TEMPERATURE
FOR THIS DATE IS 101 DEGREES SET IN 1899.

AS THE TEMPERATURE HIT THE 99 DEGREE MARK THE+ RELATIVE HUMIDITY
REGISTERED 37 PERCENT.  THIS COMBINATION PRODUCED A HEAT INDEX
OF 107 DEGREES.

KLEIN
Special weather statement, Sep 7, 4:14 PM EDT, 1 hour 6 minutes before
KYZ007-072115-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LEXINGTON KY
410 PM EDT FRI SEP 7 1990

...SEVERE THUNDERSTORM WATCH UNTIL 1100 PM EDT...

AT 405 PM EDT...THUNDERSTORMS WERE DEVELOPING ACROSS CENTRAL GARRARD
COUNTY OF EAST CENTRAL KENTUCKY. THE STRONGEST STORMS WERE LOCATED 5
MILES NORTH OF LANCASTER OR 24 MILES SOUTH OF LEXINGTON.

THESE THUNDERSTORMS WERE MOVING SOUTHEAST AT 25 MPH AND WILL MOVE INTO
SOUTHERN MADISON COUNTY BUY 430 PM EDT.

HEAVY RAIN...STRONG WINDS...HAIL AND DEADLY LIGHTNING STRIKES ARE
POSSIBLE ACROSS MOST OF EAST CENTRAL KENTUCKY THROUGH 11 PM EDT.

GO TO SAFE INDOOR SHELTER WHEN THUNDERSTORMS APPROACH.
WHITE
Special weather statement, Sep 7, 4:22 PM EDT, 58 minutes before
KYZ004-009-INZ013-015-072115-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
420 PM EDT FRIDAY SEP 7 1990

...STRONG STORMS DEVELOPING RAPIDLY IN KENTUCKY AND SOUTHERN INDIANA...

AT 400 PM EDT...RADAR INDICATED STRONG THUNDERSTORMS DEVELOPING IN
SOUTH INDIANA AND CENTRAL KENTUCKY.  THE STRONGEST STORMS WERE IN A
LINE FROM BOWLING GREEN NORTHEAST TO 20 MILES SOUTH OF LEXINGTON.  OTHER
STRONG STORMS WERE 25 MILES NORTHWEST OF BOWLING GREEN AND 25 MILES
NORTHWEST OF LOUISVILLE NEAR SALEM INDIANA.

ALL THE STORMS WERE MOVING EAST AROUND 30 MILES AN HOUR AND ARE LIKELY
PRODUCING SMALL HAIL AND VERY HEAVY RAIN.  BASED ON THERE EXPLOSIVE
DEVELOPMENT...THEY ALSO MAY PRODUCE DAMAGING WINDS AND HAIL.

IF A STORM APPROACHES YOUR AREA SEEK IMMEDIATE SHELTER IN A NEARBY
REINFORCED BUILDING.
<
A SEVERE THUNDERSTORM WATCH IS ALSO IN EFFECT FOR MUCH OF KENTUCKY
AND SOUTHERN INDIANA UNTIL 11 PM EDT.

IF YOU RECEIVE ANY SEVERE _WEATHER...REPORT IT TO YOUR NEAREST LAW
ENFORCEMENT AGENCY.  STAY TUNED TO NOAA WEATHER RADIO FOR THE
LATEST INFORMATION AND POSSIBLE WARNINGS.

TUCEK
Special weather statement, Sep 7, 4:54 PM EDT, 26 minutes before
KYZ007-072130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LEXINGTON KY
450 PM EDT FRI SEP 7 1990

...SEVERE THUNDERSTORM WATCH UNTIL 1100 PM EDT...

AT 450 PM EDT...THUNDERSTORMS WERE DEVELOPING ACROSS BOYLE...GARRARD
AND MADISON COUNTIES OF EAST CENTRAL KENTUCKY. THE STRONGEST STORMS WERE
LOCATED 5 MILES EAST OF DANVILLE OR 25 MILES SOUTH OF LEXINGTON ALONG THE
BOYLE AND GARRARD COUNTY LINE. AT 430 PM EDT MARBLE SIZE HAIL WAS REPORTED
NEAR DANVILLE IN BOYLE COUNTY AND PEA SIZE HAIL FELL NEAR LANCASTER IN
GARRARD COUNTY.

ALL THUNDERSTORMS WERE MOVING EAST AT 20 MPH AND MAY CONTAIN HEAVY RAIN
...DAMAGING WINDS...HAIL AND DEADLY LIGHTNING STRIKES.

A SEVERE THUNDERSTORMS WATCH REMAIN IN EFFECT UNTIL 1100 PM EDT FOR MOST
OF EAST CENTRAL KENTUCKY. SEEK SAFE INDOOR SHELTER IMMEDIATELY WHEN
STORMS APPROACH. STAY AWAY FROM WINDOWS AND CONTINUE TO MONITOR NOAA
WEATHER RADIO FOR LATER STATEMENTS AND POSSIBLE WARNINGS.
WHITE

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 7, 4:30 PM EDTSevere Thunderstorm WarningLMKCasey, Marion, Taylor45 min
Sep 7, 5:55 PM EDTSevere Thunderstorm WarningLMKAnderson, Woodford65 min
Sep 7, 5:55 PM EDTSevere Thunderstorm WarningLMKCasey, Taylor50 min
Sep 7, 6:02 PM EDTSevere Thunderstorm WarningLMKShelby43 min
Sep 7, 6:32 PM EDTSevere Thunderstorm WarningLMKFayette, Jessamine28 min
Sep 7, 7:19 PM EDTSevere Thunderstorm WarningLMKBreckinridge41 min
Sep 7, 4:35 PM EDTSevere Thunderstorm WarningLMKClark, Scott, Washington40 min
Sep 7, 4:57 PM EDTTornado WarningLMKClark, Scott, Washington48 min

Nearby

Tornado Warnings in Kentucky, 1990Tornado Warnings in Indiana, 1990Every tornado warning in 1990Tornadoes 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.