Alert archive / Indiana / Tornado Warnings in 1998

Tornado Warning 28, NWS Northern Indiana

June 11, 1998Grant County, Indiana

NWS Northern Indiana issued this tornado warning at Jun 11, 1998, 7:09 PM EST for Grant County, Indiana. It was in force for 46 min. 2 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
Jun 11, 1998, 7:09 PM EST (00:09 UTC)
Expired
Jun 11, 1998, 7:55 PM EST
In force
46 min
Issued by
NWS Northern Indiana
Area
Whole counties

County Grant County, IN

The radar

The Northern Indiana radar (KIWX), 94 km from the middle of the area, began a volume at 00:13 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

TimeReportWhereRemark
Jun 11, 7:21 PM ESTTornado F1Swayzee, INTHIS TORNADO WAS A CONTINUATION OF THE GREENTOWN TORNADO IN HOWARD COUNTY. THE TORNADO WAS WEAKENING AS IT CROSSED INTO GRANT COUNTY BUT CAUSED EXTENSIVE TREE DAMAGE ALONG ITS PATH AND SEVERLY DAMAGED SEVERAL HOMES IN SWAYZEE. MANY OF THE HOMES SUFFERED DAMA
Jun 11, 7:58 PM ESTTornado F1Fairmount, INTHIS TORNADO TRACK WAS A CONTINUATION OF THE TORNADO WHICH BEGAN NEAR THE TOWN OF ELWOOD IN MADISON COUNTY. THE TORNADO WAS WEAKENING AS IT CROSSED INTO GRANT COUNTY BUT CAUSED EXTENSIVE DAMAGE TO SEVERAL FARMS. ONE FARMSTEAD SUFFERED A DESTROYED BARN AND AN

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.

IssuedProductOfficeLasted
Jun 11, 5:00 PM ESTTornado WatchSPC5 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 0.2 hours before the alert went out and 199 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-pSkew-T log-p diagram, Cncnati-Daytn, OH at 00:00Z on 1998-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 593 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cncnati-Daytn, OH at 00:00Z on 1998-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 388 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
593 J/kg
Mixed-layer CIN
-63 J/kg
Mixed-layer LCL
676 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
388 m²/s²
0-3 km storm-relative helicity
431 m²/s²
Significant tornado parameter
1.0
Supercell composite
11.4

Open this sounding in Storm Lab

The text

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

603 
WFUS53 KIWX 120018
TORFWA
INC053-120055-

BULLETIN- EAS ACTIVATION REQUESTED
TORNADO WARNING...RETRANSMITTED
NATIONAL WEATHER SERVICE NORTHERN INDIANA
709 PM EST THU JUN 11 1998

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

* TORNADO WARNING FOR...
  GRANT COUNTY IN NORTH CENTRAL INDIANA

* UNTIL 755 PM EST

* AT 707 PM EST... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A TORNADO 17 MILES SOUTHWEST OF MARION MOVING NORTHEAST AT
  40 MPH.

* SOME LOCATIONS IN THE PATH OF THIS TORNADO ARE...
  NORMAL
  SWAYZEE
  SWEETSER
  GAS CITY
  MARION

A TORNADO WAS ON THE GROUND JUST SOUTHEAST OF KOKOMO PRODUCING
DAMAGE AT 707 PM EST.

THIS IS A DANGEROUS STORM ACT QUICKLY. SEEK SHELTER IN AN
INTERIOR ROOM ON THE LOWEST FLOOR AWAY FROM WINDOWS.

JAH/JM

The office that day

Everything else NWS Northern Indiana issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 11, 7:32 PM ESTTornado WarningIWXKosciusko28 min
Jun 11, 7:44 PM ESTTornado WarningIWXElkhart31 min
Jun 11, 7:54 PM ESTTornado WarningIWXGrant46 min
Jun 11, 7:59 PM ESTTornado WarningIWXGrant, Huntington51 min
Jun 11, 8:15 PM ESTTornado WarningIWXBlackford35 min
Jun 11, 9:33 PM ESTSevere Thunderstorm WarningIWXAdams, Wells37 min
Jun 12, 2:55 PM ESTSevere Thunderstorm WarningIWXMarshall35 min
Jun 12, 3:24 PM ESTSevere Thunderstorm WarningIWXKosciusko51 min
Jun 12, 3:28 PM ESTTornado WarningIWXDeKalb, Steuben47 min
Jun 12, 3:30 PM ESTTornado WarningIWXMarshall50 min
Jun 12, 3:52 PM ESTSevere Thunderstorm WarningIWXWhitley33 min
Jun 12, 4:05 PM ESTSevere Thunderstorm WarningIWXLaGrange50 min
Jun 12, 4:08 PM ESTSevere Thunderstorm WarningIWXNoble32 min
Jun 12, 4:10 PM ESTTornado WarningIWXAllen, Whitley50 min
Jun 12, 4:16 PM ESTSevere Thunderstorm WarningIWXKosciusko34 min
Jun 12, 4:23 PM ESTTornado WarningIWXMarshall, Starke47 min
Jun 12, 4:26 PM ESTSevere Thunderstorm WarningIWXSaint Joseph34 min
Jun 12, 4:37 PM ESTTornado WarningIWXWhitley33 min
Jun 12, 4:42 PM ESTTornado WarningIWXCass33 min
Jun 12, 4:48 PM ESTTornado WarningIWXElkhart32 min
Jun 12, 5:01 PM ESTTornado WarningIWXWhite34 min
Jun 12, 5:04 PM ESTTornado WarningIWXAllen36 min
Jun 12, 5:08 PM ESTTornado WarningIWXLaGrange32 min
Jun 12, 5:43 PM ESTSevere Thunderstorm WarningIWXAllen32 min

Nearby

Tornado Warnings in Indiana, 1998Every tornado warning in 1998Tornadoes 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.