Alert archive / Indiana / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 114, NWS Indianapolis, IN

June 29, 1998Hendricks County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Jun 29, 1998, 7:27 PM EST for Hendricks County, Indiana. It was in force for 33 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
Jun 29, 1998, 7:27 PM EST (00:27 UTC)
Expired
Jun 29, 1998, 8:00 PM EST
In force
33 min
Issued by
NWS Indianapolis, IN
Area
Whole counties

County Hendricks County, IN

What was reported inside it

TimeReportWhereRemark
Jun 29, 7:30 PM ESTThunderstorm Wind 65Clayton, 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 29, 6:30 PM ESTTornado WatchSPC6 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 0.5 hours before the alert went out and 235 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 1998-06-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 397 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 1998-06-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 146 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
397 J/kg
Mixed-layer CIN
-57 J/kg
Mixed-layer LCL
1435 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
146 m²/s²
0-3 km storm-relative helicity
201 m²/s²
Significant tornado parameter
0.1
Supercell composite
4.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KIND 300027 RRA
SVRIND
INC063-300100-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
727 PM EST MON JUN 29 1998

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  HENDRICKS COUNTY IN CENTRAL INDIANA

* UNTIL 800 PM EST

* AT 725 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 10 MILES WEST OF DANVILLE NEAR GROVELAND...
  MOVING EAST AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  NEW WINCHESTER BY 735 PM EST
  DANVILLE BY 745 PM EST
  AVON BY 755 PM EST

GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS! A TORNADO
WATCH IS IN EFFECT. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO
PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING.

CONLEY

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 29, 7:01 PM ESTSevere Thunderstorm WarningINDClay, Putnam34 min
Jun 29, 7:01 PM ESTSevere Thunderstorm WarningINDMontgomery34 min
Jun 29, 7:02 PM ESTSevere Thunderstorm WarningINDVermillion33 min
Jun 29, 7:15 PM ESTFlash Flood WarningINDClay, Owen3 hr
Jun 29, 7:34 PM ESTSevere Thunderstorm WarningINDMontgomery31 min
Jun 29, 7:38 PM ESTSevere Thunderstorm WarningINDMarion47 min
Jun 29, 7:53 PM ESTSevere Thunderstorm WarningINDGreene32 min
Jun 29, 8:01 PM ESTTornado WarningINDDaviess34 min
Jun 29, 8:04 PM ESTSevere Thunderstorm WarningINDJohnson51 min
Jun 29, 8:08 PM ESTSevere Thunderstorm WarningINDHancock, Shelby47 min
Jun 29, 8:22 PM ESTTornado WarningINDLawrence33 min
Jun 29, 8:29 PM ESTSevere Thunderstorm WarningINDBartholomew36 min
Jun 29, 8:45 PM ESTSevere Thunderstorm WarningINDJackson, Jennings45 min
Jun 29, 8:45 PM ESTSevere Thunderstorm WarningINDLawrence45 min
Jun 29, 8:51 PM ESTSevere Thunderstorm WarningINDJackson, Jennings49 min
Jun 29, 8:51 PM ESTSevere Thunderstorm WarningINDDecatur49 min

Nearby

Severe Thunderstorm Warnings in Indiana, 1998Every severe thunderstorm warning 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.