Alert archive / Indiana / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 8, NWS Indianapolis, IN

April 8, 1998Rush County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Apr 8, 1998, 8:29 PM EST for Rush County, Indiana. It was in force for 36 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, 8:29 PM EST (01:29 UTC)
Expired
Apr 8, 1998, 9:05 PM EST
In force
36 min
Issued by
NWS Indianapolis, IN
Area
Whole counties

County Rush County, IN

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 1.5 hours before the alert went out and 144 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°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 1998-04-09The 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.

218 
WUUS1 KIND 090128 RRA
SVRIND
INC139-090205-

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

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 905 PM EST
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN CENTRAL INDIANA

   ...RUSH COUNTY


AT 825 PM EST RADAR INDICATED A SEVERE THUNDERSTORM JUST NORTH OF
RUSHVILLE MOVING NORTHEAST AT 30 MPH. THIS STORM WILL AFFECT
RALEIGH... SEXTON AND GINGS.

WHEN THUNDERSTORMS ARE OCCURRING... PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING. DO NOT STAND BY WINDOWS. DO NOT USE 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, 2:45 PM EST, 5 hours 44 minutes before
INZ050-058-059-065-066-072>075-080-082045-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
245 PM EST WED APR 8 1998

...TORNADO WATCH FOR SOUTHEAST INDIANA CANCELLED...

THE TORNADO WATCH THAT WAS IN EFFECT FOR SOUTHEAST INDIANA UNTIL 600
PM EST HAS BEEN CANCELLED.

THUNDERSTORMS FORMED IN THE WATCH AREA...BUT WERE MAINLY SOUTH OF
INDIANA.  THEREFORE...THE PART OF THE WATCH THAT WAS IN EFFECT FOR
SOUTHEAST INDIANA HAS BEEN CANCELLED. ANY FURTHER CHANCES FOR SEVERE
WEATHER WILL BE TO THE SOUTH OR EAST OF THE HOOSIER STATE.

SHOWERS AND THUNDERSTORMS ARE STILL POSSIBLE TONIGHT IN
INDIANA...HOWEVER...SEVER STORMS ARE NOT EXPECTED.

CONLEY
Special weather statement, Apr 8, 2:45 PM EST, 5 hours 44 minutes before
INZ050-058-059-065-066-072>075-080-082045-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
245 PM EST WED APR 8 1998

...TORNADO WATCH FOR SOUTHEAST INDIANA CANCELLED...

THE TORNADO WATCH THAT WAS IN EFFECT FOR SOUTHEAST INDIANA UNTIL 600
PM EST HAS BEEN CANCELLED.

THUNDERSTORMS FORMED IN THE WATCH AREA...BUT WERE MAINLY SOUTH OF
INDIANA.  THEREFORE...THE PART OF THE WATCH THAT WAS IN EFFECT FOR
SOUTHEAST INDIANA HAS BEEN CANCELLED. ANY FURTHER CHANCES FOR SEVERE
WEATHER WILL BE TO THE SOUTH OR EAST OF THE HOOSIER STATE.

SHOWERS AND THUNDERSTORMS ARE STILL POSSIBLE TONIGHT IN
INDIANA...HOWEVER...SEVER STORMS ARE NOT EXPECTED.

CONLEY
Special weather statement, Apr 8, 7:17 PM EST, 1 hour 12 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, 9:13 PM ESTSevere Thunderstorm WarningINDRandolph32 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.