Alert archive / Indiana / Tornado Warnings in 1998

Tornado Warning 1, NWS Indianapolis, IN

April 7, 1998Hendricks County, Putnam County, Indiana

NWS Indianapolis, IN issued this tornado warning at Apr 7, 1998, 6:39 PM EST for Hendricks County, Putnam County, Indiana. It was in force for 51 min. 3 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: Apr 7, 1998, 6:39 PM EST (23:39 UTC)
Expired: Apr 7, 1998, 7:30 PM EST
In force: 51 min
Issued by: NWS Indianapolis, IN
Area: Whole counties

Counties Hendricks County, IN, Putnam County, IN

The radar

The Indianapolis radar (KIND), 34 km from the middle of the area, began a volume at 23:42 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where
Apr 7, 6:55 PM EST	Hail 1	Putnamville, IN
Apr 7, 7:20 PM EST	Hail 1.75	Belleville, IN
Apr 7, 7:37 PM EST	Hail 1.75	Plainfield, 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.

Issued	Product	Office	Lasted
Apr 7, 4:15 PM EST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 11.7 hours before the alert went out and 171 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1568 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: 69 m²/s²
0-3 km storm-relative helicity: 51 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.

457 
WFUS1 KIND 072340 RRA
TORIND
INC063-133-080030-
 
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
639 PM EST TUE APR 7 1998
 
THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  730 PM EST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN CENTRAL INDIANA
 
   ...HENDRICKS COUNTY
 
IN WEST CENTRAL INDIANA
 
   ...SOUTHERN PUTNAM COUNTY
 
AT 637 PM NATIONAL WEATHER SERVICE RADAR INDICATED A POSSIBLE TORNADO 30
MILES SOUTHWEST OF INDIANAPOLIS...NEAR THE TOWN OF CLOVERDALE. THIS
STORM WAS MOVING NORTHEAST AT 30 MPH.
 
SOME TOWNS IN THE PATH OF THIS STORM INCLUDE BELLE UNION...
STILESVILLE...BELLEVILLE AND AVON.
 
IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS A
BASEMENT.  GET UNDER A WORKBENCH OR PIECE OF STURDY FURNITURE.
IF NO BASEMENT IS AVAILABLE...SEEK SHELTER IN AN INTERIOR ROOM
SUCH AS A CLOSET ON THE LOWEST FLOOR.  USE BLANKETS...PILLOWS...
OR CUSHIONS TO COVER YOUR BODY.  AVOID WINDOWS.
 
LASHLEY

Nearby

Tornado Warnings in Indiana, 1998 Every tornado warning in 1998 Tornadoes 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; radar from the NEXRAD Level II archive.