Alert archive / Indiana / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 121, NWS Indianapolis, IN

July 12, 1986Union County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Jul 12, 1986, 7:30 PM EST for Union County, Indiana. It was in force for 20 min.

The area

The counties it named.

The facts

Issued
Jul 12, 1986, 7:30 PM EST (00:30 UTC)
Expired
Jul 12, 1986, 7:50 PM EST
In force
20 min
Issued by
NWS Indianapolis, IN
Area
Whole counties

County Union 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, 0.5 hours before the alert went out and 69 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 1986-07-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 301 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 1986-07-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 164 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
301 J/kg
Mixed-layer CIN
-84 J/kg
Mixed-layer LCL
788 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
164 m²/s²
0-3 km storm-relative helicity
220 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KIND 130031
SVRIND
INC161-130050-

BULLETIN...IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
730 PM EST SAT JUL 12 1986


THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 750 PM EST FOR PEOPLE IN

..........EASTERN UNION COUNTY......OF EAST CENTRAL INDIANA.

AT 728 PM EST RADAR AT INDIANPOLIS INDICATED A SEVER THUNDERSTORM WAS
ABOUT 5 MILES NORTHWEST OF LIBERTY. STATE POLICE REPORTED TREES WERE
DOWNED JUST NORTH OF LIBERTY ON U.S. 27.

REMEMBER A SEVERE THUNDERSTORM PRODUCES DAMAGING WINDS IN
EXCESS OF 60 MILES AN HOUR..LARGE HAIL..FREQUENT LIGHTNING
AND POSSIBLE HEAVY RAIN THAT CAN QUICKLY FLOOD LOW AREAS.

REPORT SEVERE WEATHER TO THE POLICE..SHERIFF..OR STATE POLICE
FOR RELAY TO THE NATIONAL WEATHER SERVICE.

HENDRICKSON

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 12, 4:09 PM EST, 3 hours 21 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
405 PM EST SAT JUL 12 1986

..THE SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR THE SOUTHERN
  THIRD OF INDIANA TIL 700 PM EST..

AT 355 PM EST INDIANAPOLIS RADAR SHOWED SCATTERED STRONG THUNDERSTORMS
EXTENDING FROM 10 MILES SOUTHWEST OF SHELBYVILLE..ABOUT 30 MILES
SOUTHEAST OF INDIANAPOLIS TO 20 MILES WEST OF TERRE HAUTE.

THE STRONGEST THUNDERSTORM WAS LOCATED ABOUT 10 MILES SOUTHWEST OF
SHELBYVILLE.

SOME OF THESE STORMS ARE CAPABLE OF PRODUCING GUSTY SURFACE WINDS
..INTENSE LIGHTNING AND HEAVY DOWNPOURS.
.
THE THUNDERSTORMS WERE MOVING EAST AT 35 MILES AN HOUR.
PRZYBYLINSKI
Special weather statement, Jul 12, 5:06 PM EST, 2 hours 24 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
500 PM EST SAT JUL 12 1986

...SEVERE THUNDERSTORM WATCH IN EFFECT FOR THE SOUTHERN THIRD OF
  INDIANA UNTIL 7 PM EST...

AT 455 PM EST...A BAND OF THUNDERSTORMS ABOUT 15 MILES WIDE
STRETCHED FROM 15 MILES NORTHEAST OF TERRE HAUTE TO 15 MILES NORTH OF
MARTINSVILLE AND CONTINUED EAST INTO OHIO.

THE STRONGEST THUNDERSTORMS WERE 15 MILES SOUTHWEST OF INDIANAPOLIS
NEAR STILESVILLE...AND NEAR MILROY OR 45 MILES SOUTHEAST OF
INDIANAPOLIS.

OTHER THUNDERSTORMS WERE RAPIDLY DEVELOPING OVER NORTH CENTRAL
INDIANA SINCE 4 PM EST. THESE THUNDERSTORMS WERE SCATTERED FROM NEAR
RENSSELAER THROUGH LOGANSPORT TO DECATUR...AND FROM THE KOKOMO AREA
TO 10 MILES EAST OF NEW CASTLE.
.
THE STRONGEST STORM OVER NORTH CENTRAL INDIANA WAS 10 MILES EAST OF
LOGANSPORT.

THE THUNDERSTORMS OVER CENTRAL INDIANA WERE MOVING NORTHEAST AT 30
MILES AN HOUR WHILE THE STORMS OVER NORT%H CENTRAL INDIANA WERE MOVING
EAST AT A SIMILAR SPEED.

HEAVY RAIN...DANGEROUS LIGHTNING AS WELL AS GUSTY WINDS CAN BE EXPECTED
WITH THE PASSAGE OF THE THUNDERSTORMS.
STEIGERWALDT
Special weather statement, Jul 12, 5:44 PM EST, 1 hour 46 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
540 PM EST SAT JUL 12 1986

A FEW VERY STRONG THUNDERSTORMS CONTINUED OVER PARTS OF CENTRAL AND
NORTH CENTRAL INDIANA.

AT 535 PM EST...A BAND OF SHOWERS AND A FEW VERY STRONG THUNDERSTORMS
ABOUT 35 MILES WIDE STRETCHED FROM 30 MILES NORTHEAST OF TERRE HAUTE
THROUGH INDIANAPOLIS AND BROOKVILLE INTO OHIO.

THE MOST INTENSE THUNDERSTORMS WERE IN THE GREENCASTLE AREA...AND
10 MILES EAST OF INDIANAPOLIS. ANOTHER VERY STRONG STORM WAS 5 MILES
EAST OF SHELBYVILLE OR 30 MILES SOUTHEAST OF INDIANAPOLIS.

OTHER SHOWERS AND A FEW THUNDERSTORMS WERE SCATTERED OVER NORTH
CENTRAL SECTIONS OF INDIANA FROM 15 MILES NORTH OF RENSSELAER THROUGH
LOGANSPORT...AND THROUGH MARION TO 10 MILES NORTHEAST OF MUNCIE.

THE STRONGEST THUNDERSTORM IN NORTH CENTRAL INDIANA WAS 10 MILES WEST
OF MARION.

MOVEMENT OF ALL THE PRECIPITATION WAS EAST AT 35 MILES AN HOUR.

THE STRONGER THUNDERSTORMS WILL PRODUCE FREQUENT LIGHTNING...BRIEF
VERY HEAVY RAIN AND GUSTY WINDS.
.
REMEMBER...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL
7 PM EST FOR THAT PART OF INDIANA SOUTH OF A LINE FROM 15 MILES
SOUTH OF TERRE HAUTE TO 15 MILSES NORTH OF RICHMOND.
STEIGERWALDT
Special weather statement, Jul 12, 6:09 PM EST, 1 hour 21 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
608 PM EST SAT JUL 12 1986

THE SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR ALL OF INDIANA.

EVEN THOUGH THERE HAVE BEEN SCATTERED STRONG THUNDERSTORMS OVER EAST
CENTRAL AND NORTH CENTRAL INDIANA. THERE HAVE BEEN NO RECENT REPORTS
OF SEVERE WEATHER. THESE THUNDERSTORMS HAVE MAINLY PRODUCED HEAVY RAIN
AND FREQUENT LIGHTNING.

AT 600 PM EST RADAR SHOWED THAT THE STRONGEST THUNDERSTORMS WERE
ABOUT 30 MILES EAST OF INDIANAPOLIS NEAR GREENFIELD AND SHELBYVILLE.

OTHER STRONG THUNDERSTORMS JUST NORTHEAST OF LOGANSPORT AND JUST NORTH
OF WABASH. THESE THUNDERSTORMS WERE APPROXIMATELY ABOUT 40 MILES
WEST OF FORT WcAYNE.

A LARGE AREA OF RAIN WITH A FEW EMBEDDED THUNDERSTORMS ALSO COVERED
MUCH OF SOUTHWEST INDIANA.

ALL OF THE SHOWERS AND THUNDERSTORMS WERE MOVING EAST AT 30 MPH.
HENDRICKSON
Special weather statement, Jul 12, 6:57 PM EST, 33 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
655 PM EST SAT JUL 12 1986

A TORNADO WARNING IS IN EFFECT FOR WELLS...ADAMS AND SOUTHERN ALLEN
COUNTIES OF NORTHEAST INDIANA UNTIL 715 PM. A SEVERE THUNDERSTORM
WARNING IS IN EFFECT UNTIL 745 PM FOR JAY COUNTY.

A TORNADO WAS REPORTED NEAR OSSIAN...10 MILES SOUTH OF FORT WAYNE...
AROUD 640 PM.

STRONG THUNDERSTORMS WERE OVER EAST CENTRAL INDIANA AT 650 PM EST.
THE STORMS WERE SCATTERED AROUND CONNERSVILLE...RICHMOND...NEW
CASTLE AND GREENFIELD.

THE STATE POLICE POST AT CONNERSVILLE REPORTED HEAVY RAINFALL...
DANGEROUS LIGHTNING AND WINDS UP TO 45 MILES PER HOUR AT 740 PM DUE
TO A THUNDERSTORM.

THE STORMS WERE MOVING EAST AT 35 MILES AN HOUR. SEEK SAFE SHELTER AWAY
FROM LIGHTNING.

DS
Special weather statement, Jul 12, 7:23 PM EST, 7 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
720 PM EST SAT JUL 12 1986

VERY STRONG THUNDERSTORMS WERE OVER EAST CENTRAL INDIANA AT 715 PM.

THE STRONGEST STORMS WERE NEAR CONNERSVILLE...15 MILES SOUTHWEST OF
RICHMOND...AND JUST SOUTH OF LIBERTY...20 MILES SOUTH OF RICHMOND.

STRONG GUSTY WINDS OF 40 TO 50 MILES PER HOUR...VERY DANGEROUS
LIGHTNING...AND HEAVY DOWNPOURS WILL OCCUR WITH THE STORMS.

IF YOU ARE IN OR NEAR THESE STORMS...FIND SAFE SHELTER AWAY FROM
LIGHTNING. DO NOT GET CAUGHT IN AN OPEN AREA. DO NOT TAKE SHELTER
UNDER AN ISOLATED TREE THAT STANDS ABOVE THE SURROUNDING GROUND.

THE STORMS WERE MOVING EAST AT 35 MILES PER HOUR.

REPORT SEVERE WEATHER TO THE STATE POLICE OR LOCAL POLICE.

DS

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.