Alert archive / Indiana / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 66, NWS Indianapolis, IN

June 25, 1987LaPorte County, Saint Joseph County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Jun 25, 1987, 1:04 PM CDT for LaPorte County, Saint Joseph County, Indiana. It was in force for 56 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
Jun 25, 1987, 1:04 PM CDT (18:04 UTC)
Expired
Jun 25, 1987, 2:00 PM CDT
In force
56 min
Issued by
NWS Indianapolis, IN
Area
Whole counties

Counties LaPorte County, IN, Saint Joseph 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
Jun 25, 1:10 PM CDTThunderstorm Wind 52La Porte, 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, 6.1 hours before the alert went out and 270 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 1987-06-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 1987-06-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 6 square meters per square second.1939Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
0 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
6 m²/s²
0-3 km storm-relative helicity
28 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 KSBN 251804
SVRSBN
INC091-141-251900-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SOUTH BEND IN
104 PM EST THU JUN 25 1987

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 200 PM EST FOR PEOPLE IN THE FOLLOWING 
COUNTIES OF

NORTH CENTRAL INDIANA...NORTHERN LAPORTE...NORTHERN ST JOSEPH AND 
 THE CITY OF SOUTH BEND

AT 1 PM EST RADAR INDICATED A SEVERE THUNDERSTORMS 15 MILES WEST OF
SOUTH BEND INDIANA JUST NORTH OF LAPORTE INDIANA.

THE SEVERE THUNDERSTORM WAS MOVING EAST AT 30 MPH.

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.

REMEMBER THESE STORMS CAN AND OCCASIONALLY TO PRODUCE A TORNADO WITH
LITTLE OR NO ADVANCE WARNING.

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

MOWERY

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, Jun 25, 11:35 AM CDT, 1 hour 29 minutes before
REDEFING STATEMENT FOR SEVERE THUNDERSTORM WATCH 262
NATIONAL WEATHER SERVICE INDIANAPOLIS INDIANA
1130 AM EST THU JUN 25 1987

IN INDIANA THIS WATCH IS IN EFFECT UNTIL 500 PM EST AND INCLUDES
MOST OF THE NORTHWEST HALF OF INDIANA.  THE AREA IS NORTH OF A LINE
FROM 20 MILE NORTHEAST OF FORT WAYNE TO 10 MILES SOUTH OF VINCENNES.
THIS WATCH DOES NOT INCLUDE INCLUDE LAKE COUNTY IN EXTREME NORTHWEST
INDIANA.

SOME CITIES INCLUDED ARE..0.SOUTH BEND..FORT WAYNE...RENSSELAER...
KOKOMO...LAFAYETE AND TERRE HAUTE.
HENDRICKSON
Special weather statement, Jun 25, 12:00 PM CDT, 1 hour 4 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS INDIANA
1202 PM EST THU JUN 25 1987

A SEVERE THUNDERSTORM WATCH COVERS THE NORTHWEST HALF OF INDIANA
UNTIL 500 PM EST. SOME CITIES INCLUDED IN THE WATCH ARE SOUTH BEND
...FORT WAYNE...RENSSELAER...KOKOMO...LAFAYETTE AND TERRE HAUTE.
AT THIS TIME THE WATCH DOES NOT INCLUDE INDIANAPOLIS.

SHORTLY BEFORE NOONTIME A LINE OF STRONG THUNDERSTORMS WAS ENTERING
NORTHWEST INDIANA. IN ADDITION A CLUSTER OF THUNDERSTORMS WAS FORMING
IN EAST CENTRAL ILLINOIS ABOUT 35 MILES WEST AND 45 MILES SOUTHWEST
OF LAFAYETTE. THE STORMS WILL MOVE EAST AT 30 MILES AN HOUR.

PERSONS IN NORTHWEST AND WEST CENTRAL INDIANA SHOULD BE ALERT FOR
THCE POSSIBILITY OF SEVERE THUNDERSTORMS EARLY THIS AFTERNOON. DAMAGING
WINDS AND LARGE HAIL MAY OCCUR WITH THE STRONGER STORMS.

LISTEN TO THIS STATION FOR ADDITIONAL STATEMENTS AND POSSIBLE WARNINGS
FROM THE NATIONAL WEATHER SERVICE.
EDWARDS
Special weather statement, Jun 25, 12:56 PM CDT, 8 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS INDIANA
1255 PM EST THU JUN 25 1987

A SEVERE THUNDERSTORM WATCH COVERS THE NORTHWEST HALF OF INDIANA
UNTIL 500 PM EST. SOME CITIES INCLUDED IN THE WATCH ARE SOUTH BEND
...FORT WAYNE...RENSSELAER...KOKOMO...LAFAYETTE AND TERRE HAUTE.

REMEMBER A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE
FOR SEVERE THUNDERSTORMS IN OR NEAR THE WATCH AREA.

AT 1245 PM EST THUNDERSTORMS HAD MOVED INTO NORTHWEST AND WEST CENTRAL
INDIANA. THUNDERSTORMS WERE 25 MILES NORTH OF LAFAYETTE TO NORTH OF
DANVILLE ILLINOIS AND BACK TO CHAMPAIGN ILLINOIS.

A SMALL CLUSTER OF THUNDERSHOWERS WAS ABOUT 10 MILES NORTH OF TERRE
HAUTE.

THE THUNDERSTORMS WERE MOVING EAST AT 25 MILES AN HOUR AND COULD BECOME
SEVERE THIS AFTERNOON. PERSONS IN NORTH AND WEST CENTRAL INDIANA SHOULD
BE AWARE OF THE POTENTIAL FOR SEVERE THUNDERSTORMS AND BE PREPARED TO
SEEK SHELTER INDOORS IF THUNDERSTORMS APPROACH YOUR AREA.
EDWARDS

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 25, 2:31 PM CDTSevere Thunderstorm WarningINDClay, Putnam44 min

Nearby

Severe Thunderstorm Warnings in Indiana, 1987Every severe thunderstorm warning in 1987

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.