Alert archive / Indiana / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 47, NWS Northern Indiana

August 16, 1997LaGrange County, Noble County, Indiana

NWS Northern Indiana issued this severe thunderstorm warning at Aug 16, 1997, 8:39 PM EST for LaGrange County, Noble County, Indiana. It was in force for 61 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 16, 1997, 8:39 PM EST (01:39 UTC)
Expired
Aug 16, 1997, 9:40 PM EST
In force
61 min
Issued by
NWS Northern Indiana
Area
Whole counties

Counties LaGrange County, IN, Noble County, IN

The watch it was issued in

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

IssuedProductOfficeLasted
Aug 16, 8:30 PM ESTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 00:00Z, 1.7 hours before the alert went out and 212 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 00:00Z on 1997-08-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 861 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, Detroit, MI at 00:00Z on 1997-08-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 3 square meters per square second.19395878Sfc1 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
861 J/kg
Mixed-layer CIN
-136 J/kg
Mixed-layer LCL
1182 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
3 m²/s²
0-3 km storm-relative helicity
86 m²/s²
Significant tornado parameter
0.1
Supercell composite
3.0

Open this sounding in Storm Lab

The text

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

949 
WUUS1 KFWA 170139
SVRFWA
INC087-113-170245-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE FORT WAYNE IN
839 PM EST SAT AUG 16 1997
 
THE NATIONAL WEATHER SERVICE IN FORT WAYNE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  940 PM EST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHEAST INDIANA
 
   ...SOUTHERN LAGRANGE COUNTY...NORTHERN NOBLE COUNTY
 
AT 835PM EST A SEVERE THUNDERSTORM WAS LOCATED 40 MILES NORTHWEST OF FORWAYNE...NEAR MILLERSBURG.
 
MOVEMENT WAS TO THE EAST AT 30 MPH.
 
WINDS TO 80 MPH WERE REPORTED WITH THIS STORM AS IT MOVED NEAR SOUTH
BEND. LARGE HAIL IS ALSO POSSIBLE...ALONG WITH TORRENTIAL DOWNPOURS OF
RAIN.
 
COMMUNITIES IN THE PATH OF THIS STORM INCULDE TOPEKA...WOLCOTTVILLE...
KENDALLVILLE...LIGONIER...AND CROMWELL.
 
 
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 BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DONT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
 
 
REAUGH

The office that day

Everything else NWS Northern Indiana issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 16, 7:08 PM ESTFlash Flood WarningIWXDeKalb97 min
Aug 16, 8:26 PM ESTFlash Flood WarningIWXDeKalb, LaGrange, Noble2 hr
Aug 16, 10:12 PM ESTFlash Flood WarningIWXAllen, DeKalb2 hr
Aug 16, 10:12 PM ESTFlash Flood WarningIWXWhitley2 hr
Aug 16, 10:20 PM ESTFlash Flood WarningIWXAllen, DeKalb, Whitley2 hr

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; the sounding from the Mesonet's radiosonde archive.