Alert archive / Indiana / Tornado Warnings in 1987

Tornado Warning 5, NWS Indianapolis, IN

May 25, 1987Decatur County, Shelby County, Indiana

NWS Indianapolis, IN issued this tornado warning at May 25, 1987, 6:19 PM EST for Decatur County, Shelby County, Indiana. It was in force for 41 min.

The area

The counties it named.

The facts

Issued
May 25, 1987, 6:19 PM EST (23:19 UTC)
Expired
May 25, 1987, 7:00 PM EST
In force
41 min
Issued by
NWS Indianapolis, IN
Area
Whole counties

Counties Decatur County, IN, Shelby 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 12:00Z, 11.3 hours before the alert went out and 135 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 1987-05-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 25 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 1987-05-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 75 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
25 J/kg
Mixed-layer CIN
-119 J/kg
Mixed-layer LCL
613 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
75 m²/s²
0-3 km storm-relative helicity
72 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 KIND 252318
TORIND
INC031-145-260000-
 
BULLETIN - EBS ACTIVATION AND IMMEDIATE BROADCAST REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
619 PM EST MON MAY 25 1987
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING
EFFECTIVE UNTIL 700 PM EST FOR THE FOLLOWING COUNTIES OF
 
CENTRAL INDIANA... DECATUR... SOUTHEAST SHELBY                           
 
AT 608 PM EST PUBLIC REPORT TORNADO 3 MILES NORTHEAST OF WESTPORT  
OR ABOUT 20 MILES EAST OF COLUMBUS. 
 
AT 620 PM EST RADAR ALSO SHOWED THAT A TORNADO WAS ABOUT 10 MILES 
NORTHEAST OF COLUMBUS. 
 
BOTH STORMS WERE MOVING NORTHEAST AT 20 MPH. 
                                                                         
IF YOU ARE IN A CAR OR MOBILE HOME...LEAVE AT ONCE FOR A BUILDING        
WHERE SHELTER CAN BE SOUGHT IN A BASEMENT OR INTERIOR PART OF THE        
LOWEST FLOOR.  IF NO STRUCTURE IS NEARBY...SEEK SHELTER IN A DITCH       
OR LOW SPOT.                                                             
                                                                         
REPORT SEVERE WEATHER TO YOUR NEAREST LAW ENFORC EMENT AGENCY OR          
THE NATIONAL WEATHER SERVICE.                                            
 
JEH

The office that day

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

IssuedProductOfficeCountiesLasted
May 25, 5:35 PM ESTTornado WarningINDJackson, Jennings35 min
May 25, 5:58 PM ESTTornado WarningINDBartholomew32 min
May 25, 6:39 PM ESTTornado WarningINDRush41 min

Nearby

Tornado Warnings in Indiana, 1987Every tornado warning in 1987Tornadoes 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; the sounding from the Mesonet's radiosonde archive.