Alert archive / Indiana / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 110, NWS Indianapolis, IN

June 29, 1998Tippecanoe County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Jun 29, 1998, 6:56 PM EST for Tippecanoe County, Indiana. It was in force for 34 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
Jun 29, 1998, 6:56 PM EST (23:56 UTC)
Expired
Jun 29, 1998, 7:30 PM EST
In force
34 min
Issued by
NWS Indianapolis, IN
Area
Whole counties

County Tippecanoe County, 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

Lincoln, IL (KILX), launched 12:00Z, 11.9 hours before the alert went out and 147 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 12:00Z on 1998-06-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 12:00Z on 1998-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 91 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2020 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
91 m²/s²
0-3 km storm-relative helicity
71 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KIND 292357 RRA
SVRIND
INC157-300030-

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

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  TIPPECANOE COUNTY IN WEST CENTRAL INDIANA

* UNTIL 730 PM EST

* AT 654 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 10 MILES WEST OF LAFAYETTE NEAR GREENVILLE...
  MOVING EAST AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  LAFAYETTE AT 705 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 28, 7:06 PM ESTSevere Thunderstorm WarningINDMorgan34 min
Jun 28, 7:42 PM ESTSevere Thunderstorm WarningINDOwen33 min
Jun 28, 8:21 PM ESTSevere Thunderstorm WarningINDOwen34 min
Jun 28, 8:44 PM ESTFlash Flood WarningINDOwen4 hr
Jun 28, 9:07 PM ESTSevere Thunderstorm WarningINDOwen63 min
Jun 28, 9:25 PM ESTSevere Thunderstorm WarningINDClay, Vigo45 min
Jun 28, 10:12 PM ESTSevere Thunderstorm WarningINDOwen48 min
Jun 29, 12:54 AM ESTFlash Flood WarningINDOwen8 hr
Jun 29, 6:05 PM ESTSevere Thunderstorm WarningINDVermillion, Warren50 min
Jun 29, 6:44 PM ESTSevere Thunderstorm WarningINDFountain, Parke51 min
Jun 29, 6:44 PM ESTSevere Thunderstorm WarningINDVigo51 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; the sounding from the Mesonet's radiosonde archive.