Alert archive / Indiana / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 138, NWS Chicago, IL

August 16, 1997LaPorte County, Saint Joseph County, Indiana

NWS Chicago, IL issued this severe thunderstorm warning at Aug 16, 1997, 7:48 PM CDT for LaPorte County, Saint Joseph County, Indiana. It was in force for 42 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, 7:48 PM CDT (00:48 UTC)
Expired
Aug 16, 1997, 8:30 PM CDT
In force
42 min
Issued by
NWS Chicago, IL
Area
Whole counties

Counties LaPorte County, IN, Saint Joseph County, IN

What was reported inside it

TimeReportWhereRemark
Aug 16, 8:03 PM CDTHail 1.75South Bend, IN
Aug 16, 8:22 PM CDTTornado 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 CDTSevere Thunderstorm WatchSPC6 hr
Aug 16, 5:15 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 0.8 hours before the alert went out and 237 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

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

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 16, 7:02 PM CDTSevere Thunderstorm WarningLOTDeKalb28 min
Aug 16, 7:29 PM CDTFlash Flood WarningLOTCook3 hr
Aug 16, 8:07 PM CDTSevere Thunderstorm WarningLOTGrundy, Kendall, Will68 min
Aug 16, 8:07 PM CDTSevere Thunderstorm WarningLOTLaSalle68 min
Aug 16, 9:02 PM CDTSevere Thunderstorm WarningLOTKankakee28 min
Aug 17, 1:05 AM CDTFlash Flood WarningLOTFord6 hr
Aug 17, 2:45 AM CDTFlash Flood WarningLOTLivingston6 hr
Aug 16, 7:09 PM CDTTornado WarningLOTLaPorte36 min
Aug 16, 7:59 PM CDTTornado WarningLOTSaint Joseph31 min
Aug 16, 8:16 PM CDTSevere Thunderstorm WarningLOTElkhart29 min

Nearby

Severe Thunderstorm Warnings in Indiana, 1997Every severe thunderstorm warning 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.