Alert archive / Indiana / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 156, NWS Indianapolis, IN

August 24, 1998Hamilton County, Hendricks County, Marion County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Aug 24, 1998, 6:04 PM EST for Hamilton County, Hendricks County, Marion County, Indiana. It was in force for 46 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: Aug 24, 1998, 6:04 PM EST (23:04 UTC)
Expired: Aug 24, 1998, 6:50 PM EST
In force: 46 min
Issued by: NWS Indianapolis, IN
Area: Whole counties

Counties Hamilton County, IN, Hendricks County, IN, Marion 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
Aug 24, 5:45 PM EST	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 11.1 hours before the alert went out and 204 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: 380 J/kg
Mixed-layer CIN: -343 J/kg
Mixed-layer LCL: 1993 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 226 m²/s²
0-3 km storm-relative helicity: 231 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.

942 
WUUS1 KIND 242305 RRA
SVRIND
INC057-063-097-242350-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
604 PM EST MON AUG 24 1998

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  HAMILTON COUNTY IN CENTRAL INDIANA
  HENDRICKS COUNTY IN CENTRAL INDIANA
  MARION COUNTY IN CENTRAL INDIANA

* UNTIL 650 PM EST

* AT 600 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORM FROM 10 MILES SOUTHWEST OF LEBANON TO
  10 MILES NORTH OF NOBLESVILLE... MOVING SOUTHEAST AT 35 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  CARMEL AT 615 PM EST
  NOBLESVILLE AT 620 PM EST
  BROWNSBURG AT 620 PM EST
  PLAINFIELD AT 630 PM EST
  INDIANAPOLIS AT 630 PM EST

DAMAGING WINDS AND LARGE HAIL ARE LIKELY. GO INSIDE A STURDY
BUILDING AND STAY AWAY FROM WINDOWS

JEH

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 24, 4:05 PM EST	Severe Thunderstorm Warning	IND	Carroll	35 min
Aug 24, 4:44 PM EST	Severe Thunderstorm Warning	IND	Howard	16 min
Aug 24, 5:13 PM EST	Severe Thunderstorm Warning	IND	Montgomery, Tippecanoe	47 min
Aug 24, 5:16 PM EST	Severe Thunderstorm Warning	IND	Delaware, Madison	34 min
Aug 24, 5:29 PM EST	Severe Thunderstorm Warning	IND	Boone	46 min
Aug 24, 5:38 PM EST	Severe Thunderstorm Warning	IND	Fountain, Montgomery, Parke	37 min
Aug 24, 5:48 PM EST	Severe Thunderstorm Warning	IND	Henry, Randolph	32 min
Aug 24, 6:08 PM EST	Severe Thunderstorm Warning	IND	Parke, Putnam	32 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.