Alert archive / Indiana / Tornado Warnings in 1998

Tornado Warning 63, NWS Northern Indiana

July 3, 1998LaPorte County, Marshall County, Starke County, Indiana

NWS Northern Indiana issued this tornado warning at Jul 3, 1998, 9:21 PM CDT for LaPorte County, Marshall County, Starke County, Indiana. It was in force for 49 min. 3 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: Jul 3, 1998, 9:21 PM CDT (02:21 UTC)
Expired: Jul 3, 1998, 10:10 PM CDT
In force: 49 min
Issued by: NWS Northern Indiana
Area: Whole counties

Counties LaPorte County, IN, Marshall County, IN, Starke County, IN

The radar

The Northern Indiana radar (KIWX), 71 km from the middle of the area, began a volume at 02:25 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

Time	Report	Where	Remark
Jul 3, 9:30 PM CDT	Thunderstorm Wind 50	Plymouth, IN	SEVERAL TREES DOWN IN COUNTY WITH SOME MINOR ROOF DAMAGE MAINLY NORTHEAST THROUGH SOUTHEAST OF PLYMOUTH.
Jul 3, 9:41 PM CDT	Thunderstorm Wind 50	La Porte, IN	WIND DAMAGE - POWER LINES DOWN.
Jul 3, 9:42 PM CDT	Thunderstorm Wind 50	South Center, IN	POWER LINES DOWN.

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

Lincoln, IL (KILX), launched 00:00Z, 2.4 hours before the alert went out and 221 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: 1525 J/kg
Mixed-layer CIN: -73 J/kg
Mixed-layer LCL: 1014 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 26 m²/s²
0-3 km storm-relative helicity: 113 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KFWA 040221 RRA
TORFWA
INC091-099-149-040310-

BULLETIN- EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
921 PM EST (921 PM CDT) FRI JUL 3 1998

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN LAPORTE COUNTY IN NORTHWESTERN INDIANA
  NORTHERN MARSHALL COUNTY IN NORTH CENTRAL INDIANA
  NORTHERN STARKE COUNTY IN NORTHWESTERN INDIANA

* UNTIL 1010 PM CDT (1010 PM EST)

* AT 919 PM CDT (919 PM EST)... DOPPLER RADAR AT NORTH WEBSTER
  INDICATED A DEVELOPING TORNADO 15 MILES NORTHWEST OF PLYMOUTH OR
  8 MILES WEST OF TEEGARDEN MOVING EAST AT 40 MPH.

* SOME LOCATIONS IN THE PATH OF THIS TORNADO ARE...
  DONALDSON
  TEEGARDEN
  TYNER
  KOONTZ LAKE
  LA PAZ
  PLYMOUTH

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

TEH/JLA

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 3, 8:45 PM CDT	Severe Thunderstorm Warning	IWX	LaPorte	65 min
Jul 3, 9:08 PM CDT	Tornado Warning	IWX	Saint Joseph	52 min
Jul 3, 9:35 PM CDT	Tornado Warning	IWX	Elkhart	50 min
Jul 3, 9:54 PM CDT	Tornado Warning	IWX	Kosciusko	66 min
Jul 3, 10:25 PM CDT	Severe Thunderstorm Warning	IWX	LaGrange, Noble	65 min
Jul 3, 10:29 PM CDT	Severe Thunderstorm Warning	IWX	Elkhart	21 min
Jul 3, 10:49 PM CDT	Tornado Warning	IWX	Wabash	46 min
Jul 3, 10:51 PM CDT	Tornado Warning	IWX	Fulton, Miami	49 min
Jul 3, 11:00 PM CDT	Tornado Warning	IWX	Huntington, Whitley	50 min
Jul 3, 11:27 PM CDT	Tornado Warning	IWX	Cass, Miami	48 min
Jul 3, 11:35 PM CDT	Tornado Warning	IWX	Wabash	50 min
Jul 3, 11:50 PM CDT	Tornado Warning	IWX	Huntington	35 min
Jul 3, 11:57 PM CDT	Tornado Warning	IWX	Miami	48 min
Jul 4, 12:25 AM CDT	Tornado Warning	IWX	Grant	65 min
Jul 4, 1:21 AM CDT	Flash Flood Warning	IWX	Cass, Fulton, Miami	3 hr
Jul 4, 4:34 AM CDT	Flash Flood Warning	IWX	Cass, Fulton, Miami	2 hr
Jul 4, 6:35 AM CDT	Flash Flood Warning	IWX	Cass, Fulton, Miami

Nearby

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