Alert archive / Indiana / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 31, NWS Louisville, KY

June 17, 1990Orange County, Washington County, Indiana

NWS Louisville, KY issued this severe thunderstorm warning at Jun 17, 1990, 11:54 PM EST for Orange County, Washington County, Indiana. It was in force for 51 min.

The area

The counties it named.

The facts

Issued
Jun 17, 1990, 11:54 PM EST (04:54 UTC)
Expired
Jun 18, 1990, 12:45 AM EST
In force
51 min
Issued by
NWS Louisville, KY
Area
Whole counties

Counties Orange County, IN, Washington County, IN

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

Dayton/James M C, OH (KDAY), launched 00:00Z, 4.9 hours before the alert went out and 234 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 00:00Z on 1990-06-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1277 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, Dayton/James M C, OH at 00:00Z on 1990-06-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 43 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
1277 J/kg
Mixed-layer CIN
-32 J/kg
Mixed-layer LCL
1225 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
43 m²/s²
0-3 km storm-relative helicity
109 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSDF 180456
SVRSDF
INC117-175-180545-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
1254 AM EDT MON JUN 18 1990
 
THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  145 AM EDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN SOUTH INDIANA
          ...ORANGE...WASHINGTON
 
AT 1250 PM EDT WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM
IN ORANGE COUNTY INDIANA...5 MILES NORTH OF PAOLI OR 45 MILES
NORTHWEST OF LOUISVILLE KENTUCKY. THE STORM WAS MOVING SOUTHEAST AT 35
MILES AN HOUR AND WILL TAKE THE STORM SOUTH OF SALEM INDIANA IN
WASHINGTON COUNTY BY 130 AM EDT.
 
LIGHTNING IS THE SINGLE WORSTF KILLER WITHIN A THUNDERSTORM
...SO STAY INDOORS AND AVOID USING ELECTRICAL APPLIANCES.
HEAVY RAINS FROM THUNDERSTORMS FLOOD ROADWAYS QUICKLY
...SO AVOID DRIVING INTO AREAS WHERE WATER COVERS THE ROAD.
KLEIN

Nearby

Severe Thunderstorm Warnings in Indiana, 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; the sounding from the Mesonet's radiosonde archive.