Alert archive / Indiana / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 16, NWS Indianapolis, IN

April 25, 1986Fulton County, Marshall County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Apr 25, 1986, 8:18 PM EST for Fulton County, Marshall County, Indiana. It was in force for 42 min.

The area

The counties it named.

The facts

Issued
Apr 25, 1986, 8:18 PM EST (01:18 UTC)
Expired
Apr 25, 1986, 9:00 PM EST
In force
42 min
Issued by
NWS Indianapolis, IN
Area
Whole counties

Counties Fulton County, IN, Marshall 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, 1.3 hours before the alert went out and 225 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 1986-04-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 536 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 1986-04-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 27 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
536 J/kg
Mixed-layer CIN
-96 J/kg
Mixed-layer LCL
2144 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
27 m²/s²
0-3 km storm-relative helicity
95 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSBN 260118
SVRSBN
INC099-049-260200-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SOUTH BEND IN
818 PM EST FRI APR 25 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 900 PM EST FOR PEOPLE IN THE FOLLOWING
COUNTIES OF

NORTH CENTRAL INDIANA...EXTREME SOUTHERN MARSHALL AND EXTREME
 NORTHERN FULTON

AT 805 PM EST RADAR INDICATED A SEVERE THUNDERSTORMS 25 MILES SOUTH
OF SOUTH BEND INDIANA IN EXTREME SOUTHERN MARSHALL AND EXTREME NORTHERN
FULTON COUNTIES IN NORTH CENTRAL INDIANA.

IF YOU ARE IN THE PATH OF THIS SEVERE THUNDERSTORM GET INTO A REIN-
FORCED SHELTER AND PREPARE FOR STRONG DAMAGING WIND...LARGE HAIL...
VERY HEAVY RAIN AND LIGHTNING.

THIS SLOW MOVING THUNDERSTORM MAY CAUSE FLOODING OF SMALL STREAMS AND
UNDERPASSES.

REPORT SEVERE WEATHER TO YOUR NEAREST LAW ENFORCEMENT AGENCY AND ASK
THEM TO RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE.

SAVAGE

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 25, 9:32 PM ESTSevere Thunderstorm WarningINDSaint Joseph58 min

Nearby

Severe Thunderstorm Warnings in Indiana, 1986Every severe thunderstorm warning 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.