Alert archive / Indiana / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 147, NWS Indianapolis, IN

July 20, 1998Johnson County, Shelby County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Jul 20, 1998, 3:26 AM EST for Johnson County, Shelby County, Indiana. It was in force for 34 min. 1 report 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: Jul 20, 1998, 3:26 AM EST (08:26 UTC)
Expired: Jul 20, 1998, 4:00 AM EST
In force: 34 min
Issued by: NWS Indianapolis, IN
Area: Whole counties

Counties Johnson County, IN, Shelby County, IN

What was reported inside it

Time	Report	Where	Remark
Jul 20, 3:30 AM EST	Thunderstorm Wind	Countywide, IN	Yet another round of storms brought down trees and power lines.

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 nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 8.4 hours before the alert went out and 184 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 200826 RRA
SVRIND
INC081-145-200900-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
326 AM EST MON JUL 20 1998

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  JOHNSON COUNTY IN CENTRAL INDIANA
  SOUTHERN SHELBY COUNTY IN CENTRAL INDIANA

* UNTIL 400 AM EST

* AT 325 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 15 MILES WEST OF SHELBYVILLE NEAR FRANKLIN...
  MOVING SOUTHEAST AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  SHELBYVILLE AT 335 AM EST
  EDINBURG AT 340 AM EST

DAMAGING WINDS AND HEAVY RAIN ARE LIKELY. GO INSIDE A STURDY
BUILDING ANND STAY AWAY FROM WINDOWS!

JAS/DT

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, 10:07 PM EST, 5 hours 19 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1007 PM EST SUN JUL 19 1998

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

1004 PM    CICERO                    IN   0.88 INCH HAIL
07/19/98   HAMILTON

ELSON

Local storm report, Jul 19, 10:43 PM EST, 4 hours 43 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1043 PM EST SUN JUL 19 1998

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

0647 PM    RUSSIAVILLE               IN   0.75 INCH HAIL
07/19/98   HOWARD

0735 PM    10 NE LEBANON             IN   WIND DAMAGE
07/19/98   BOONE                          BUILDING UNDER CONSTRUCTION
                                          ...WALL BLOWN DOWN

1022 PM    MIDDLETOWN                IN   WIND DAMAGE
07/19/98   HENRY                          2 FOOT DIAMETER TREE
                                          AND LARGE LIMBS DOWN

ELSON

Local storm report, Jul 20, 12:17 AM EST, 3 hours 9 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1217 AM EST MON JUL 20 1998

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

1143 PM    1 E ARLINGTON             IN   WIND DAMAGE
07/19/98   RUSH

1204 AM    RUSHVILLE                 IN   WIND DAMAGE
07/20/98   RUSH                           GAS PUMPS BLOWN OVER AND
                                          TREES DOWN

1212 AM    ARLINGTON                 IN   WIND DAMAGE
07/20/98   RUSH                           TREES DOWN ON CR 775W

ZIMMERMAN

Local storm report, Jul 20, 3:20 AM EST, 6 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
320 AM EST MON JUL 20 1998

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

0140 AM    COUNTYWIDE                IN   WIND DAMAGE
07/20/98   MORGAN                         NUMEROUS TREES AND POWER
                                          LINES BLOWN DOWN

0245 AM    COLUMBUS                  IN   WIND DAMAGE
07/>20/98   BARTHOLOMEW                    TREES BLOWN DOWN

JAS

Local storm report, Jul 20, 3:20 AM EST, 6 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
320 AM EST MON JUL 20 1998

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

0140 AM    COUNTYWIDE                IN   WIND DAMAGE
07/20/98   MORGAN                         NUMEROUS TREES AND POWER
                                          LINES BLOWN DOWN

0245 AM    COLUMBUS                  IN   WIND DAMAGE
07/>20/98   BARTHOLOMEW                    TREES BLOWN DOWN

JAS

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, 8:40 PM EST	Severe Thunderstorm Warning	IND	Madison	30 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, 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.