Alert archive / Indiana / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 102, NWS Indianapolis, IN

July 8, 1986Johnson County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Jul 8, 1986, 5:24 PM EST for Johnson County, Indiana. It was in force for 41 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jul 8, 1986, 5:24 PM EST (22:24 UTC)
Expired
Jul 8, 1986, 6:05 PM EST
In force
41 min
Issued by
NWS Indianapolis, IN
Area
Whole counties

County Johnson County, IN

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

What was reported inside it

TimeReportWhereRemark
Jul 8, 5:40 PM ESTThunderstorm Wind 0Johnson, IN

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Dayton/James M C, OH (KDAY), launched 12:00Z, 10.4 hours before the alert went out and 169 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 1986-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1082 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 1986-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 59 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
1082 J/kg
Mixed-layer CIN
-46 J/kg
Mixed-layer LCL
1069 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
59 m²/s²
0-3 km storm-relative helicity
62 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 
TTAAOO KIND 082224
SVRIND
INC081-082305-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
524 PM EST TUE JUL  8 1986
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL  605 PM EST FOR PEOPLE IN THE FOLLOWING COUNTIES:
 
IN CENTRAL INDIANA
          ..JOHNSON

AT 525 PM EST RADAR SHOWED A SEVERE THUNDERSTORM OVER JOHNSON
COUNTY...20 MILES SOUTH OF INDIANAPOLIS.
 
THIS STORM WAS MOVING EAST AT 35 TO 40 MILES AN HOUR THE TOWNS OF
FRANKLIN AND WHITELAND ARE IN THE PATH OF THIS STORM.
 
IF YOU ARE CAUGHT OUTSIDE, SEEK SHELTER 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.
GERY/RP

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, Jul 8, 2:54 PM EST, 2 hours 30 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
250 PM EST TUE JUL 8 1986

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 9 PM EST FOR MOST
OF THE NORTH HALF OF INDIANA...

AT 240 PM EST ISOLATED VERY STRONG THUNDERSTORMS WERE DEVELOPING OVER
PARTS OF WEST CENTRAL INDIANA.  THE STRONGEST THUNDERSTORMS WERE JUST
NORTHEAST OF TERRE HAUTE OVER PARKE COUNTY AND WESTERN PUTNAM COUNTY.

ISOLATED THUNDERSTORMS WERE DEVELOPING OVER THE INDIANAPOLIS METRO
AREA.  A REPORT WAS RECEIVED THAT TREE DAMAGE HAD OCCURRED JUST AFTER
230 ON THE NORTHEAST SIDE OF INDIANAPOLIS.

THESE THUNDERSTORMS LIKELY CONTAIN HEAVY DOWNPOURS AND MAY ALSO BE
ACCOMPANIED BY HAIL AND SPTRONG WINDS.  MOVEMENT OF THESE STORMS WAS
TOWARD THE EAST NORTHEAST AT 20 TO 25 MPH.

OTHER ISOLATED THUNDERSHOWERS WERE OVER SOUTHERN TIPTON COUNTY AND
OVER MONROE COUNTY NEAR BLOOMINGTON.

YESS
Special weather statement, Jul 8, 3:47 PM EST, 1 hour 37 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
350 PM EST TUE JUL 8 1986

A SEVERE THUNDERSTORM WARNING IS IN EFFECT UNTIL 4 PM EST
FOR NORTH JOHNSON AND SHELBY COUNTY IN CENTRAL INDIANA.

RADAR AT 340 PM EST SHOWED THE SEVERE THUNDERSTORM THAT PRODUCED
70 MPH WINDS AT SOUTHPORT HAS MOVED OVER THE NORTHWEST PART OF
SHELBY COUNTY AND WILL BE MOVING ACROSS THE REMAINDER OF THE
NORTH HALF OF SHELBY COUNTY BETWEEN NOW AND 415 PM EST.

NO SEVERE WEATHER HAS BEEN REPORTED TO THE NATIONAL WEATHER SERVICE
SINCE 320 PM EST.

OTHER STRONG THUDERSTORMS AT 345 PM EST WERE MOVING THROUGH NEWTON
COUNTY TOWARDS RENNSELAER...35 MILES NORTHWEST OF LAFAYETTE...AND
THROUGH SOUTHERN HENDzRICKS COUNTY 20 MILES SOUTHWEST OF INDIANAPOLIS.

IF THREATENING WEATHER APPROACHES...SEEK SHELTER IMMEDIATELY.
CURRAN

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 8, 3:20 PM ESTSevere Thunderstorm WarningINDJohnson, Shelby40 min
Jul 8, 4:50 PM ESTSevere Thunderstorm WarningINDJohnson, Marion25 min
Jul 8, 5:05 PM ESTSevere Thunderstorm WarningINDHancock, Shelby35 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.