Alert archive / Indiana / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 23, NWS Northern Indiana

July 8, 1997Allen County, Indiana

NWS Northern Indiana issued this severe thunderstorm warning at Jul 8, 1997, 8:18 PM EST for Allen County, Indiana. It was in force for 42 min. 1 report 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
Jul 8, 1997, 8:18 PM EST (01:18 UTC)
Expired
Jul 8, 1997, 9:00 PM EST
In force
42 min
Issued by
NWS Northern Indiana
Area
Whole counties

County Allen County, IN

What was reported inside it

TimeReportWhereRemark
Jul 8, 8:30 PM ESTThunderstorm Wind 70Near Cedarville, 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.

The watch it was issued in

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

IssuedProductOfficeLasted
Jul 8, 8:00 PM ESTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 1.3 hours before the alert went out and 214 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, Cncnati-Daytn, OH at 00:00Z on 1997-07-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 702 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, Cncnati-Daytn, OH at 00:00Z on 1997-07-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 39 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
702 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
1294 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
39 m²/s²
0-3 km storm-relative helicity
92 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KFWA 090120 RRA
SVRFWA
INC003-090200-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE FORT WAYNE IN
818 PM EST TUE JUL 8 1997
 
THE NATIONAL WEATHER SERVICE IN FORT WAYNE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  900 PM EST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHEAST INDIANA
 
   ...ALLEN COUNTY
 
AT 815 PM EST RADAR INDICATED A SEVERE THUNDERSTORM NEAR HUNTERTOWN OR
JUST 20 MILES NORTH OF FORT WAYNE. THIS STORM WAS MOVING TO THE
SOUTHEAST AT 30 MPH. THE CITY OF FORT WAYNE IS IN THE PATH OF THIS
STORM.
 
THIS IS A DANGEROUS STORM!  SEEK SHELTER IF A STORM THREATENS YOUR AREA!
 
 
 
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DON'T USE TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.
 
PAVLOW

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 8, 7:04 PM ESTSevere Thunderstorm WarningIWXDeKalb56 min
Jul 8, 9:30 PM ESTSevere Thunderstorm WarningIWXBlackford45 min
Jul 8, 10:27 PM ESTSevere Thunderstorm WarningIWXAdams, Allen33 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.