Alert archive / Indiana / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 92, NWS Indianapolis, IN

June 26, 1989Saint Joseph County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Jun 26, 1989, 4:38 PM EST for Saint Joseph County, Indiana. It was in force for 52 min.

The area

The counties it named.

The facts

Issued
Jun 26, 1989, 4:38 PM EST (21:38 UTC)
Expired
Jun 26, 1989, 5:30 PM EST
In force
52 min
Issued by
NWS Indianapolis, IN
Area
Whole counties

County 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.

The nearest sounding before it

Detroit, MI (KFNT), launched 12:00Z, 9.6 hours before the alert went out and 266 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, Detroit, MI at 12:00Z on 1989-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 102 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Detroit, MI at 12:00Z on 1989-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 83 square meters per square second.1939Sfc1 km3 km6 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
102 J/kg
Mixed-layer CIN
-162 J/kg
Mixed-layer LCL
1533 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
83 m²/s²
0-3 km storm-relative helicity
92 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 26, 1:20 PM EST, 3 hours 18 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS INDIANA
118 PM EST MON JUN 26 1989

IN INDIANA SEVERE THUNDERSTORM WATCH NUMBER 538 IS IN EFFECT
UNTIL 900 PM EST AND INCLUDES EXTREME NORTHWEST INDIANA.
THE WATCH AREA IS FOR THAT PART OF INDIANA NORTH OF A LINE FROM
50 MILES SOUTH OF CHICAGO TO WARSAW...AND WEST OF A LINE FROM WARSAW
TO LAGRANGE.

SOME CITIES INCLUDED ARE...CROWN POINT...GARY...MICHIGAN CITY...
SOUTH BEND AND ELKHART.

REMEMBER...A WATCH MEANS THAT CONDITIONS ARE FAVORABLE FOR SEVERE
WEATHER IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD
BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR
LATER STATEMENTS AND POSSIBLE WARNINGS.

AT 115 PM EST SCATTERED THUNDERSTORMS WERE DEVELOPING OVER EXTREME
NORTHWEST INDIANA.  HOWEVER NONE OF THEM APPEARED SEVERE AT THIS TIME.
HENDRICKSON

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 26, 5:36 PM ESTSevere Thunderstorm WarningINDElkhart, Saint Joseph54 min
Jun 26, 6:30 PM ESTSevere Thunderstorm WarningINDElkhart30 min

Nearby

Severe Thunderstorm Warnings in Indiana, 1989Every severe thunderstorm warning in 1989

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.