Alert archive / Indiana / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 156, NWS Indianapolis, IN

September 7, 1990Fountain County, Vermillion County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Sep 7, 1990, 10:42 AM EST for Fountain County, Vermillion County, Indiana. It was in force for 48 min.

The area

The counties it named.

The facts

Issued
Sep 7, 1990, 10:42 AM EST (15:42 UTC)
Expired
Sep 7, 1990, 11:30 AM EST
In force
48 min
Issued by
NWS Indianapolis, IN
Area
Whole counties

Counties Fountain County, IN, Vermillion 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 12:00Z, 3.7 hours before the alert went out and 269 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°0°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 KIND 071542
SVRIND
INC045-165-071630-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1042 AM EST FRI SEP 7 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 1130 AM EST FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE WEST CENTRAL PART OF INDIANA
      SOUTHERN FOUNTAIN...NORTHERN VERMILLION

AT 1040 AN EST RADAR SHOWED A SEVERE THUNDERSTORM NEAR CAYUGA OR
35 MILES NORTH OF TERRE HAUTE. THIS STORM WAS MOVING EAST AT 25
MILES AN HOUR. THE TOWNS OF KINGMAN AND CAYUGA ARE IN THE PATH OF
THIS STORM.

IF YOU ARE CAUGHT OUTSIDE...FIND SHELTER FROM THE WEATHER IN A
STRONG BUILDING.  DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...
AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADWAYS QUICKLY...
AVOID DRIVING INTO AREAS WHERE WATER COVERS THE ROAD.

 KOLDITZ

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, Sep 7, 10:28 AM EST, 14 minutes before
INZ008>015-072200-

SPECIAL WEATHER STATEMENT...SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1028 AM EST FRI SEP 7 1990

THERE IS A POTENTIAL FOR SEVERE THUNDERSTORMS OVER CENTRAL INDIANA LATE
THIS MORNING AND AFTERNOON AND OVER SOUTHERN INDIANA FROM MID AFTERNOON
INTO EVENING. SEVERE THUNDERSTORMS PRODUCE GUSTS OF 58 MILES AN HOUR OR
GREATER AND 3/4 INCH DIAMETER HAIL OR GREATER.

KOLDITZ

The office that day

Everything else NWS Indianapolis, IN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 7, 2:59 PM ESTSevere Thunderstorm WarningINDGibson31 min
Sep 7, 3:40 PM ESTSevere Thunderstorm WarningINDPike35 min

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.