Alert archive / Indiana / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 135, NWS Indianapolis, IN

July 19, 1998Madison County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Jul 19, 1998, 8:40 PM EST for Madison County, Indiana. It was in force for 30 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: Jul 19, 1998, 8:40 PM EST (01:40 UTC)
Expired: Jul 19, 1998, 9:10 PM EST
In force: 30 min
Issued by: NWS Indianapolis, IN
Area: Whole counties

County Madison 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
Jul 19, 3:15 PM EST	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 1.7 hours before the alert went out and 183 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: 2300 J/kg
Mixed-layer CIN: -43 J/kg
Mixed-layer LCL: 1282 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 189 m²/s²
0-3 km storm-relative helicity: 232 m²/s²
Significant tornado parameter: 1.0
Supercell composite: 7.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KIND 200141
SVRIND
INC095-200210-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
840 PM EST SUN JUL 19 1998

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN MADISON COUNTY IN CENTRAL INDIANA

* UNTIL 910 PM EST

* AT 840 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 10 MILES SOUTHWEST OF ANDERSON NEAR
  CLARKSVILLE... MOVING EAST AT 35 MPH.  0.75 INCH HAIL WAS REPORTED
  WITH THIS STORM JUST EAST OF WESTFIELD AT 819 PM EST.

* THE SEVERE THUNDERSTORM WILL MOVE THROUGH...
  PENDLETON
  HUNTSVILLE
  MARKLEVILLE

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

ELSON


&

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

Local storm report, Jul 19, 6:39 PM EST, 2 hours 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
639 PM EST SUN JUL 19 1998

TIME (EST) .....CITY LOCATION.....STATE   ...EVENT...
DATE       ....COUNTY LOCATION....        ...REMARKS...

0631 PM    FOREST                    IN   1.75 INCH HAIL
07/19/98   CLINTON                        GOLFBALL SIZE HAIL
                                          COVERING THE GROUND

ELSON

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 19, 7:46 PM EST	Severe Thunderstorm Warning	IND	Boone	34 min
Jul 19, 7:59 PM EST	Severe Thunderstorm Warning	IND	Clinton	36 min
Jul 19, 8:11 PM EST	Severe Thunderstorm Warning	IND	Rush	34 min
Jul 19, 8:15 PM EST	Severe Thunderstorm Warning	IND	Hamilton	35 min
Jul 19, 9:14 PM EST	Severe Thunderstorm Warning	IND	Delaware	31 min
Jul 19, 9:21 PM EST	Severe Thunderstorm Warning	IND	Randolph	49 min
Jul 19, 9:43 PM EST	Severe Thunderstorm Warning	IND	Madison	32 min
Jul 19, 11:13 PM EST	Severe Thunderstorm Warning	IND	Rush	32 min
Jul 19, 11:48 PM EST	Severe Thunderstorm Warning	IND	Rush	32 min
Jul 20, 1:20 AM EST	Severe Thunderstorm Warning	IND	Johnson, Marion, Morgan	30 min
Jul 20, 1:47 AM EST	Severe Thunderstorm Warning	IND	Shelby	33 min
Jul 20, 1:52 AM EST	Severe Thunderstorm Warning	IND	Johnson	33 min
Jul 20, 2:32 AM EST	Severe Thunderstorm Warning	IND	Bartholomew, Decatur	33 min
Jul 20, 2:54 AM EST	Severe Thunderstorm Warning	IND	Brown	31 min
Jul 20, 3:06 AM EST	Severe Thunderstorm Warning	IND	Bartholomew	34 min
Jul 20, 3:26 AM EST	Severe Thunderstorm Warning	IND	Johnson, Shelby	34 min
Jul 20, 5:43 AM EST	Flash Flood Warning	IND	Bartholomew, Decatur, Jennings	6 hr
Jul 20, 11:40 AM EST	Flash Flood Warning	IND	Bartholomew, Decatur, Jackson, Jennings	5 hr

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.