Alert archive / Indiana / Tornado Warnings in 1998

Tornado Warning 39, NWS Northern Indiana

June 12, 1998Marshall County, Starke County, Indiana

NWS Northern Indiana issued this tornado warning at Jun 12, 1998, 4:23 PM EST for Marshall County, Starke County, Indiana. It was in force for 47 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: Jun 12, 1998, 4:23 PM EST (21:23 UTC)
Expired: Jun 12, 1998, 5:10 PM EST
In force: 47 min
Issued by: NWS Northern Indiana
Area: Whole counties

Counties Marshall County, IN, Starke County, IN

The radar

The Northern Indiana radar (KIWX), 63 km from the middle of the area, began a volume at 21:23 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 12, 2:45 PM EST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 9.4 hours before the alert went out and 222 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: 538 J/kg
Mixed-layer CIN: -80 J/kg
Mixed-layer LCL: 1016 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 105 m²/s²
0-3 km storm-relative helicity: 129 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 2.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KFWA 122122 RRA
TORFWA
INC099-149-122210-

BULLETIN- EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
423 PM EST (423 PM CDT) FRI JUN 12 1998

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

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

* UNTIL 510 PM EST (510 PM CDT)

* AT 421 PM EST (421 PM CDT)... NATIONAL WEATHER SERVICE DOPPLER
  RADAR INDICATED A POSSIBLE TORNADO 12 MILES WEST OF PLYMOUTH OR 2
  MILES WEST OF GROVERTOWN MOVING EAST AT 40 MPH.

* SOME LOCATIONS IN THE PATH OF THIS TORNADO ARE...
  GROVERTOWN
  KOONTZ LAKE
  NORTH JUDSON
  DONALDSON
  PLYMOUTH
  ARGOS

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

MES/JM!

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 11, 7:09 PM EST	Tornado Warning	IWX	Grant	46 min
Jun 11, 7:32 PM EST	Tornado Warning	IWX	Kosciusko	28 min
Jun 11, 7:44 PM EST	Tornado Warning	IWX	Elkhart	31 min
Jun 11, 7:54 PM EST	Tornado Warning	IWX	Grant	46 min
Jun 11, 7:59 PM EST	Tornado Warning	IWX	Grant, Huntington	51 min
Jun 11, 8:15 PM EST	Tornado Warning	IWX	Blackford	35 min
Jun 11, 9:33 PM EST	Severe Thunderstorm Warning	IWX	Adams, Wells	37 min
Jun 12, 2:55 PM EST	Severe Thunderstorm Warning	IWX	Marshall	35 min
Jun 12, 3:24 PM EST	Severe Thunderstorm Warning	IWX	Kosciusko	51 min
Jun 12, 3:28 PM EST	Tornado Warning	IWX	DeKalb, Steuben	47 min
Jun 12, 3:30 PM EST	Tornado Warning	IWX	Marshall	50 min
Jun 12, 3:52 PM EST	Severe Thunderstorm Warning	IWX	Whitley	33 min
Jun 12, 4:05 PM EST	Severe Thunderstorm Warning	IWX	LaGrange	50 min
Jun 12, 4:08 PM EST	Severe Thunderstorm Warning	IWX	Noble	32 min
Jun 12, 4:10 PM EST	Tornado Warning	IWX	Allen, Whitley	50 min
Jun 12, 4:16 PM EST	Severe Thunderstorm Warning	IWX	Kosciusko	34 min
Jun 12, 4:26 PM EST	Severe Thunderstorm Warning	IWX	Saint Joseph	34 min
Jun 12, 4:37 PM EST	Tornado Warning	IWX	Whitley	33 min
Jun 12, 4:42 PM EST	Tornado Warning	IWX	Cass	33 min
Jun 12, 4:48 PM EST	Tornado Warning	IWX	Elkhart	32 min
Jun 12, 5:01 PM EST	Tornado Warning	IWX	White	34 min
Jun 12, 5:04 PM EST	Tornado Warning	IWX	Allen	36 min
Jun 12, 5:08 PM EST	Tornado Warning	IWX	LaGrange	32 min
Jun 12, 5:43 PM EST	Severe Thunderstorm Warning	IWX	Allen	32 min

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.