Alert archive / Indiana / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 21, NWS Indianapolis, IN

April 3, 1989Spencer County, Vanderburgh County, Warrick County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Apr 3, 1989, 6:23 PM CDT for Spencer County, Vanderburgh County, Warrick County, Indiana. It was in force for 67 min. 3 reports 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: Apr 3, 1989, 6:23 PM CDT (23:23 UTC)
Expired: Apr 3, 1989, 7:30 PM CDT
In force: 67 min
Issued by: NWS Indianapolis, IN
Area: Whole counties

Counties Spencer County, IN, Vanderburgh County, IN, Warrick 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

Time	Report	Where
Apr 3, 7:00 PM CDT	Thunderstorm Wind 0	Vanderburgh, IN
Apr 3, 7:02 PM CDT	Hail 1.75	Warrick, IN
Apr 3, 7:30 PM CDT	Hail 1.75	Spencer, 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

Paducah/Barkley, KY (KPAH), launched 12:00Z, 11.4 hours before the alert went out and 165 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 55 J/kg
Mixed-layer CIN: -45 J/kg
Mixed-layer LCL: 556 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 128 m²/s²
0-3 km storm-relative helicity: 171 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KEVV 032324
SVREVV
INC123-129-147-163-173-040030-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EVANSVILLE IN
623 PM CDT (623 PM EST) MON APR 3 1989
 
THE NATIONAL WEATHER SERVICE IN EVANSVILLE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  730 PM CDT (730 PM EST)
FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN SOUTH CENTRAL INDIANA
          ...PERRY
IN SOUTHWEST INDIANA
          ...POSEY...SPENCER...VANDERBURGH...WARRICK
 
AT 620 PM CDT...SEVERE THUNDERSTORMS EXTENDED FROM ABOUT 25 MILES
NORTHEAST OF EVANSVILLE TO 15 MILES SOUTHWEST OF EVANSVILLE. THESE
THUNDERSTORMS WERE MOVING TO THE EAST AT 45 MILES AN HOUR.
NUMEROUS REPORTS OF LARGE HAIL HAVE BEEN REPORTED WITH THESE
THUNDERSTORMS.
 
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BQUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
SPODEN

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 3, 4:45 PM CDT	Severe Thunderstorm Warning	IND	Gibson, Posey	45 min
Apr 3, 4:57 PM CDT	Tornado Warning	IND	Gibson	33 min
Apr 3, 5:29 PM CDT	Severe Thunderstorm Warning	IND	Posey	46 min
Apr 3, 5:29 PM CDT	Severe Thunderstorm Warning	IND	Gibson, Vanderburgh	46 min
Apr 3, 5:45 PM CDT	Tornado Warning	IND	Gibson, Pike, Warrick	45 min
Apr 3, 5:45 PM CDT	Tornado Warning	IND	Vanderburgh	45 min
Apr 3, 6:23 PM CDT	Severe Thunderstorm Warning	IND	Posey	67 min
Apr 3, 6:23 PM CDT	Severe Thunderstorm Warning	IND	Perry	67 min
Apr 3, 6:45 PM CDT	Severe Thunderstorm Warning	IND	Dubois, Pike	45 min

Nearby

Severe Thunderstorm Warnings in Indiana, 1989 Every 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.