Alert archive / Indiana / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 9, NWS Indianapolis, IN

April 8, 1998Randolph County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Apr 8, 1998, 9:13 PM EST for Randolph County, Indiana. It was in force for 32 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
Apr 8, 1998, 9:13 PM EST (02:13 UTC)
Expired
Apr 8, 1998, 9:45 PM EST
In force
32 min
Issued by
NWS Indianapolis, IN
Area
Whole counties

County Randolph County, IN

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 2.2 hours before the alert went out and 131 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 1998-04-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 149 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cncnati-Daytn, OH at 00:00Z on 1998-04-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 30 square meters per square second.1939587897117136156Sfc1 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
149 J/kg
Mixed-layer CIN
-82 J/kg
Mixed-layer LCL
1572 m above ground
0-6 km bulk shear
85 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
76 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KIND 090212 RRA
SVRIND
INC135-090245-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
913 PM EST WED APR 8 1998

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 945 PM EST
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN EAST CENTRAL INDIANA

   ...RANDOLPH COUNTY


AT 909 PM EST RADAR SHOWED A SEVERE THUNDERSTORM 8 MILES SOUTH OF
WINCHESTER OR 15 MILES NORTH OF RICHMOND. THIS STORM WAS MOVING
NORTHEAST AT 30 MPH AND WILL AFFECT THE TOWNS OF LYNN...WINCHESTER...
BARTONIA AND RURAL.

WHEN THUNDERSTORMS ARE OCCURRING... PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING. DO NOT STAND BY WINDOWS. DO NOT USEr TELEPHONES OR
ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM HAS
PASSED. MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.

LASHLEY

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Apr 8, 7:17 PM EST, 1 hour 56 minutes before
INZ071-072-090100-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
717 PM EST WED APR 8 1998

THE SEVERE THUNDERSTORM WARNING FOR JACKSON COUNTY EXPIRED AT 715PM
EST. THE STORM IN JACKSON COUNTY WEAKENED AS IT MOVED NORTHEAST AT 20
MILES AN HOUR. THE JACKSON COUNTY SHERIFF REPORTED LARGE HAIL AT
SPARKSVILLE AND MEDORA AT 645 PM BUT DID NOT INDICATE AN EXACT SIZE.

THE STORM WILL MOVE THROUGH NORTHERN JENNINGS COUNTY. FROM 730PM TO
830PM NORTH VERNON...BREWERSVILLE AND QUEENSVILLE BY EXPERIENCE VERY
HEAVY RAIN...SMALL HAIL AND GUSTY WINDS.

HAINES

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 8, 7:46 PM ESTTornado WarningINDJackson34 min
Apr 8, 8:29 PM ESTSevere Thunderstorm WarningINDRush36 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.