Alert archive / Indiana / Tornado Warnings in 1986

Tornado Warning 13, NWS Indianapolis, IN

May 15, 1986Dubois County, Indiana

NWS Indianapolis, IN issued this tornado warning at May 15, 1986, 6:15 PM EST for Dubois County, Indiana. It was in force for 45 min.

The area

The counties it named.

The facts

Issued
May 15, 1986, 6:15 PM EST (23:15 UTC)
Expired
May 15, 1986, 7:00 PM EST
In force
45 min
Issued by
NWS Indianapolis, IN
Area
Whole counties

County Dubois 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

Salem-Leckrone, IL (KSLO), launched 12:00Z, 11.3 hours before the alert went out and 179 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, Salem-Leckrone, IL at 12:00Z on 1986-05-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 10 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, Salem-Leckrone, IL at 12:00Z on 1986-05-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 303 square meters per square second.19395878Sfc1 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
10 J/kg
Mixed-layer CIN
-77 J/kg
Mixed-layer LCL
593 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
303 m²/s²
0-3 km storm-relative helicity
342 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 152315
TOREVV
INC037-160000-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING
NATIONAL WEATHER SERVICE EVANSVILLE IN
615 PM CDT THU MAY 15 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 700 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY OF

SOUTHWEST INDIANA...DUBOIS

A TORNADO WAS REPORTED IN NORTHEAST WARRICK COUNTY..NEAR
TENNYSON..IT WAS MOVING TOWARD THE NORTHEAST..AND SHOULD
MOVE INTO SOUTHWEST DUBIOS COUNTY IN INDIANA.

THIS IS A DANGEROUS STORM. TAKE COVER IMMEDIATELY!

WILLIAMS

The office that day

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

IssuedProductOfficeCountiesLasted
May 14, 7:15 PM ESTSevere Thunderstorm WarningINDGibson, Knox45 min
May 15, 2:00 PM ESTSevere Thunderstorm WarningINDVanderburgh30 min
May 15, 3:19 PM ESTSevere Thunderstorm WarningINDLawrence41 min
May 15, 4:16 PM ESTTornado WarningINDGibson, Pike44 min
May 15, 4:29 PM ESTTornado WarningINDPosey, Vanderburgh46 min
May 15, 4:31 PM ESTSevere Thunderstorm WarningINDMadison29 min
May 15, 5:05 PM ESTSevere Thunderstorm WarningINDRandolph, Wayne25 min
May 15, 5:23 PM ESTSevere Thunderstorm WarningINDUnion22 min
May 15, 5:40 PM ESTTornado WarningINDVanderburgh, Warrick35 min

Nearby

Tornado Warnings in Indiana, 1986Every tornado warning in 1986Tornadoes in 1986

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.