Alert archive / Kentucky / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 106, NWS Indianapolis, IN

July 20, 1990Grayson County, Kentucky

NWS Indianapolis, IN issued this severe thunderstorm warning at Jul 20, 1990, 8:12 PM CDT for Grayson County, Kentucky. It was in force for 33 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
Jul 20, 1990, 8:12 PM CDT (01:12 UTC)
Expired
Jul 20, 1990, 8:45 PM CDT
In force
33 min
Issued by
NWS Indianapolis, IN
Area
Whole counties

County Grayson 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
Jul 20, 8:15 PM CDTThunderstorm Wind 0Grayson, 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, 1.2 hours before the alert went out and 150 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, Nashville Metro, TN at 00:00Z on 1990-07-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1061 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 00:00Z on 1990-07-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 6 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
1061 J/kg
Mixed-layer CIN
-29 J/kg
Mixed-layer LCL
1157 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
6 m²/s²
0-3 km storm-relative helicity
33 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KEVV 210113
SVREVV
KYC085-210145-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EVANSVILLE IN
812 PM CDT FRI JUL 20 1990
 
THE NATIONAL WEATHER SERVICE IN EVANSVILLE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  845 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN SOUTH CENTRAL KENTUCKY
          ...GRAYSON
 
AT 815 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM JUST EAST OF
LEITCHFIELD MOVING EAST TO CLARKSVILLE KENTUCKY. THIS IS 30 MILES
NORTHEAST OF BOWLING GREEN KENTUCKY. THE STORM WAS MOVING TO THE EAST
AT 20 MILES AN HOUR.
 
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DON'T USE\ TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.

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 20, 3:34 PM CDT, 4 hours 38 minutes before
INZ009>013-202130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
335 PM EST FRI JUL 20 1990

RADAR SHOWED A VERY STRONG THUNDERSTORM 10 MILES NORTHWEST OF
SHELBYVILLE NEAR FAIRLAND AT 330 PM EST. ANOTHER STRONG STORM
WAS 5 MILES SOUTH OF RUSHVILLE.

THESE STORMS HAVE THE POTENTIAL OF PRODUCING TORRENTIAL RAIN...
HAIL...AND STRONG GUSTY WINDS WHICH COULD BLOW AWAY LOOOSE OBJECTS
AND SNAP SOME TREE LIMBS.

THE STORMS WERE MOVING EAST AT 40 MPH. THE SHELBY COUNTY STORM WILL
PASS THROUGH SHELBYVILLE AND ST PAUL BETWEEN 325 AND 400 PM WHILE
THE RUSH COUNTY STORM MOVES THROUGH ANDERSONVILLE...LAUREL AND
CONNERSVILLE.

REPORT SEVERE WEATHER TO LAW ENFORCEMENT FOR RELAY TO xTHE NATIONAL
WEATHER SERVICE.

ALLSOPP
Special weather statement, Jul 20, 4:19 PM CDT, 3 hours 53 minutes before
INZ009>013-202200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
417 PM EST FRI JUL 20 1990

A LINE OF STRONG THUNDERSTORMS WAS OVER SOUTH CENTRAL AND EAST CENTRAL
INDIANA LATE THIS AFTERNOON.

THUNDERSTORMS WERE FROM JUST SOUTH OF SULLIVAN TO THE SOUTHEAST SIDE OF
BLOOMINGTON AND FROM 10 MILES NORTHWEST OF COLUMBUS TO 5 MILES NORTH OF
GREENSBURG TO NEAR BROOKVILLE LAKE.

SOME OF THESE STORMS WERE PRODUCING VERY HEAVY RAIN WHICH CAN FLOOD
ROADS...DITCHES AND LOW LYING AREAS. SOME OF THE STORMS MAY ALSO
PRODUCE STRONG GUSTY WINDS AND SMALL HAIL.

THE STORMS WERE MOVING EAST AT 30 MPH. PEOPLE IN SANDBORN...NEWBERRY...
COLUMBUS...GREENSBURG AND BROOKVILLE SHOULD STAY INDOORS TIL AROUND 5PM
WHILE THE STORMS PASS. BOATERS SHOULD GET OFF MONROE LAKE AND SEEK
SHELTER FROM THE LIGHTNING AND GUSTY WINDS.

ALLSOPP
Special weather statement, Jul 20, 4:51 PM CDT, 3 hours 21 minutes before
INZ009>013-202230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
450 PM EST FRI JUL 20 1990

THUNDERSTORMS WERE POPPING UP ALONG INTERSTATE 70 IN CENTRAL AND WEST
CENTRAL INDIANA LATE THIS AFTERNOON.

AT 445 PM EST RADAR SHOWED THUNDERSTORMS SCATTERED ALOMG A LINE FROM
WEST OF TERRE HAUTE TO JUST EAST OF INDIANAPOLIS. OTHER STORMS WERE IN
SOUTH CENTRAL INDIANA BETWEEN BLOOMFIELD AND BLOOMINGTON AND IN EAST
CENTRAL INDIANA FROM 10 MILES SOUTHEAST OF SHELBYVILLE TO BROOKVILLE.

SOME OF THESE STORMS WERE PRODUCING VERY HEAVY RAIN WHICH CAN FLOOD
ROADS...DITCHES AND LOW LYING AREAS. SOME OF THE STORMS MAY ALSO
PRODUCE GUSTY WINDS AND SMALL HAIL.

THE STORMS WERE MOVING E+AST AT 30 MPH. GET INDOORS WHEN STORMS APPROACH.
BOATERS SHOULD GET OFF MONROE LAKE TIL THE STORMS PASS. LIGHTNING CAN
KILL.

ALLSOPP
Special weather statement, Jul 20, 5:35 PM CDT, 2 hours 37 minutes before
INZ009>013-202330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
530 PM EST FRI JUL 20 1990

THUNDERSTORMS CONTINUED TO DEVELOP ALONG INTERSTATE 70 IN CENTRAL AND
WESTCENTRAL INDIANA EARLY THIS EVENING.

AT 520 PM EST RADAR SHOWED THUNDERSTORMS SCATTERED ALONG A LINE FROM
WEST OF TERRE HAUTE TO JUST EAST OF INDIANAPOLIS.

SOME OF THESE STORMS WERE PRODUCING VERY HEAVY RAIN WHICH CAN FLOOD
ROADS...DITCHES AND LOW LYING AREAS AS WELL AS SMALL HAIL...GUSTY WIND
AND DANGEROUS LIGHTNING. INDIANA STATE POLICE REPORTED SMALL HAIL IN
SOUTHWESTERN HANCOCK COUNTY AT 525 PM.

THE STORMS WERE MOVING EAST AT 25 MPH. GET INDOORS WHEN STORMS APPROACH.
BOATERS SHOULD GET OFF MONROE ZLAKE TIL THE STORMS PASS. LIGHTNING CAN
KILL.

DUMEYER
Special weather statement, Jul 20, 6:02 PM CDT, 2 hours 10 minutes before
INZ008-202330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
600 PM EST FRI JUL 20 1990

...THERE WAS A STRONG THUNDERSTORM NEAR TERRE HAUTE...

AMATEUR RADIO OPERATORS REPORTED PEA SIZE HAIL...50 MILE PER HOUR
WINDS...AND 4 TO 6 INCH TREE LIMBS DOWNED 2 MILES SOUTH OF TERRE HAUTE
AROUND 545 PM.

THE STORM WAS MOVING EAST AND WILL BE AROUND BOWLING GREEN AT 630 PM
PEOPLE BETWEEN THE SOUTH SIDE OF TERRE HAUTE AND BOWLING GREEN SHOULD
REMAIN INSIDE UNTIL THIS STORM PASSES.

BESIDES STRONG WINDS AND SMALL HAIL...THERE WILL BE DANGEROUS LIGHTNING
AND BRIEF HEAVY RAINFALL IN THAT STORM.

OTHER STORMS WITH LIGHTNING...HEAVY RAINFALL AND POSSIBLY SMALL HAIL
WERE OVER WEST CENTRAL AND CENTRAL INDIANA ALONG AND JUST SOUTH OF INTERSTATE 70 BETWEEN
TERRE HAUTE AND KNIGHTSTOWN...EAST OF INDIANAPOLIS. THOSE STORMS WERE
MOVING EAST AND DRIFTING A LITTLE SOUTH OF THE INTERSTATE.

DS
Local storm report, Jul 20, 7:46 PM CDT, 26 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
745 PM EST FRI JUL 20 1990

JUST BEFORE 700 PM EST...SOUTHEAST PUTNAM COUNTY...EAST OF CLOVERDALE
     ...TREES AND POWER LINES DOWNED...DAMAGE TO SOM/E OUT BUILDINGS.
     REPORTED BY STATE POLICE AT 740 PM.

DS

Nearby

Severe Thunderstorm Warnings in Kentucky, 1990Every severe thunderstorm warning 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.