Alert archive / Indiana / Tornado Warnings in 1998

Tornado Warning 15, NWS Indianapolis, IN

June 11, 1998Hancock County, Marion County, Indiana

NWS Indianapolis, IN issued this tornado warning at Jun 11, 1998, 6:12 PM EST for Hancock County, Marion County, Indiana. It was in force for 33 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
Jun 11, 1998, 6:12 PM EST (23:12 UTC)
Expired
Jun 11, 1998, 6:45 PM EST
In force
33 min
Issued by
NWS Indianapolis, IN
Area
Whole counties

Counties Hancock County, IN, Marion County, IN

What was reported inside it

TimeReportWhereRemark
Jun 11, 6:20 PM ESTTornado F4Greenfield, IN
Jun 11, 6:45 PM ESTTornado F2Eden, 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
Jun 11, 5:00 PM ESTTornado WatchSPC5 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 11.2 hours before the alert went out and 189 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 12:00Z on 1998-06-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1257 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 12:00Z on 1998-06-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 98 square meters per square second.1939587897Sfc1 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
1257 J/kg
Mixed-layer CIN
-28 J/kg
Mixed-layer LCL
619 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
98 m²/s²
0-3 km storm-relative helicity
109 m²/s²
Significant tornado parameter
0.5
Supercell composite
4.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KIND 112312 RRA
TORIND
INC059-097-112345-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
612 PM EST THU JUN 11 1998

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* TORNADO WARNING FOR...
  HANCOCK COUNTY IN CENTRAL INDIANA
  EXTREME EASTERN MARION COUNTY IN CENTRAL INDIANA

* UNTIL 645 PM EST

* AT 610 PM EST... SPOTTERS INDICATED A TORNADO AT BROOKVILLE AND
  FRANKLIN ROADS...MOVING NORTHEAST AT 35 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  CUMBERLAND
  GEM
  MOUNT COMFORT

GO TO THE BASEMENT OR A SMALL INTERIOR ROOM ON THE LOWEST FLOOR!

DRT



&

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 11, 12:05 PM ESTFlash Flood WarningINDClinton, Howard, Tipton3 hr
Jun 11, 12:05 PM ESTFlash Flood WarningINDCarroll, Tippecanoe3 hr
Jun 11, 5:44 PM ESTTornado WarningINDClinton, Montgomery46 min
Jun 11, 6:27 PM ESTTornado WarningINDClinton, Tipton33 min
Jun 11, 6:45 PM ESTTornado WarningINDHancock, Henry60 min

Nearby

Tornado Warnings in Indiana, 1998Every tornado warning in 1998Tornadoes in 1998

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.