Alert archive / Indiana / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 122, NWS Indianapolis, IN

June 29, 1998Lawrence County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Jun 29, 1998, 8:45 PM EST for Lawrence County, Indiana. It was in force for 45 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, 8:45 PM EST (01:45 UTC)
Expired: Jun 29, 1998, 9:30 PM EST
In force: 45 min
Issued by: NWS Indianapolis, IN
Area: Whole counties

County Lawrence County, 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
Jun 29, 6:30 PM EST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 1.8 hours before the alert went out and 240 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: 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 300145 RRA
SVRIND
INC071-079-093-300230-

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

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  JACKSON COUNTY IN SOUTH CENTRAL INDIANA
  JENNINGS COUNTY IN SOUTHEASTERN INDIANA
  LAWRENCE COUNTY IN SOUTH CENTRAL INDIANA

* UNTIL 930 PM EST

* AT 842 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM FROM 10 MILES NORTHWEST OF GREENSBURG TO 10
  MILES NORTHWEST OF NORTH VERNON TO SEYMOUR... MOVING EAST AT 40
  MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  GREENSBURG...NORTH VERNON AND SEYMOUR BY 850 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.

SECURE LAWN FURNITURE...GARBAGE CANS...OR OTHER OBJECTS WHICH
COULD BE BLOWN ABOUT BY THE WIND.

CONLEY

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 29, 7:01 PM EST	Severe Thunderstorm Warning	IND	Clay, Putnam	34 min
Jun 29, 7:01 PM EST	Severe Thunderstorm Warning	IND	Montgomery	34 min
Jun 29, 7:02 PM EST	Severe Thunderstorm Warning	IND	Vermillion	33 min
Jun 29, 7:15 PM EST	Flash Flood Warning	IND	Clay, Owen	3 hr
Jun 29, 7:27 PM EST	Severe Thunderstorm Warning	IND	Hendricks	33 min
Jun 29, 7:34 PM EST	Severe Thunderstorm Warning	IND	Montgomery	31 min
Jun 29, 7:38 PM EST	Severe Thunderstorm Warning	IND	Marion	47 min
Jun 29, 7:53 PM EST	Severe Thunderstorm Warning	IND	Greene	32 min
Jun 29, 8:01 PM EST	Tornado Warning	IND	Daviess	34 min
Jun 29, 8:04 PM EST	Severe Thunderstorm Warning	IND	Johnson	51 min
Jun 29, 8:08 PM EST	Severe Thunderstorm Warning	IND	Hancock, Shelby	47 min
Jun 29, 8:22 PM EST	Tornado Warning	IND	Lawrence	33 min
Jun 29, 8:29 PM EST	Severe Thunderstorm Warning	IND	Bartholomew	36 min
Jun 29, 8:45 PM EST	Severe Thunderstorm Warning	IND	Jackson, Jennings	45 min
Jun 29, 8:51 PM EST	Severe Thunderstorm Warning	IND	Jackson, Jennings	49 min
Jun 29, 8:51 PM EST	Severe Thunderstorm Warning	IND	Decatur	49 min

Nearby

Severe Thunderstorm Warnings in Indiana, 1998 Every 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.