Alert archive / Indiana / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 171, NWS Indianapolis, IN

September 28, 1990Parke County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Sep 28, 1990, 3:36 PM EST for Parke County, Indiana. It was in force for 54 min.

The area

The counties it named.

The facts

Issued
Sep 28, 1990, 3:36 PM EST (20:36 UTC)
Expired
Sep 28, 1990, 4:30 PM EST
In force
54 min
Issued by
NWS Indianapolis, IN
Area
Whole counties

County Parke 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, 8.6 hours before the alert went out and 257 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 1990-09-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 12 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 1990-09-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 62 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
12 J/kg
Mixed-layer CIN
-62 J/kg
Mixed-layer LCL
1550 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
62 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

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

000 
TTAA00 KIND 282037
SVRIND
INC121-282130-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
336 PM EST FRI SEP 28 1990
 
THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  430 PM EST
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN WEST CENTRAL INDIANA
          ...NORTHERN PARKE
 
STATE POLICE REPORTED THAT QUARTER SIZE HAIL FELL AT CAYUGA IN
VERMILLION COUNTY AT 333 PM EST. CAYUGA IS 30 MILES NORTH OF TERRE
HAUTE.
 
THE THUNDERSTORM WAS MOVING EAST AT 30 MPH. PEOPLE IN TANGIER AND
GRANGE CORNER SHOULD SEEK SHELTER INDOORS AWAY FROM WINDOWS. CAMPERS
AT TURKEY RUN AND SHADES STATE PARKS SHOULD SEEK SAFETY IhN A NEARBY
BUILDING.
 
ALLSOPP

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 28, 3:23 PM ESTSevere Thunderstorm WarningINDVermillion37 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.