Alert archive / Indiana / Tornado Warnings in 1997

Tornado Warning 16, NWS Chicago, IL

August 16, 1997Saint Joseph County, Indiana

NWS Chicago, IL issued this tornado warning at Aug 16, 1997, 7:59 PM EST for Saint Joseph County, Indiana. It was in force for 31 min. 2 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
Aug 16, 1997, 7:59 PM EST (00:59 UTC)
Expired
Aug 16, 1997, 8:30 PM EST
In force
31 min
Issued by
NWS Chicago, IL
Area
Whole counties

County Saint Joseph County, IN

What was reported inside it

TimeReportWhereRemark
Aug 16, 8:03 PM ESTHail 1.75South Bend, IN
Aug 16, 8:22 PM ESTTornado F0Lakeville, INA short, narrow tornado touched down briefly between Lakeville and LaPaz. A semi was blown over on highway 31.

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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Aug 16, 1:45 PM ESTSevere Thunderstorm WatchSPC6 hr
Aug 16, 5:15 PM ESTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 1.0 hours before the alert went out and 254 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, Lincoln, IL at 00:00Z on 1997-08-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 5712 joules per kilogram.LCLEL10008507005003002001001 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, Lincoln, IL at 00:00Z on 1997-08-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 98 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
5712 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
995 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
98 m²/s²
0-3 km storm-relative helicity
317 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 KCHI 170059 RRA
TORCHI
INC141-170130-
 
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CHICAGO IL
759 PM CDT (759 PM EST) SAT AUG 16 1997
 
THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  830 PM CDT (830 PM EST)
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTH CENTRAL INDIANA
 
   ...ST. JOSEPH COUNTY
 
A TORNADO WAS REPORTED ON THE GROUND 4 MILES SOUTH OF SOUTH BEND. IT WAS
MOVING EAST SOUTHEAST AT 30 MPH. WOODLAND IS IN THE PATH OF THIS STORM.
 
GO TO THE BASEMENT OR A SMALL INTERIOR ROOM ON THE LOWEST FLOOR!
 
&
ALLSOPP

The office that day

Everything else NWS Chicago, IL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 16, 7:09 PM ESTTornado WarningLOTLaPorte36 min
Aug 16, 7:48 PM ESTSevere Thunderstorm WarningLOTLaPorte, Saint Joseph42 min
Aug 16, 8:16 PM ESTSevere Thunderstorm WarningLOTElkhart29 min

Nearby

Tornado Warnings in Indiana, 1997Every tornado warning in 1997Tornadoes in 1997

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.