Alert archive / Indiana / Tornado Warnings in 1998

Tornado Warning 15, NWS Northern Indiana

May 31, 1998LaGrange County, Steuben County, Indiana

NWS Northern Indiana issued this tornado warning at May 31, 1998, 11:54 AM EST for LaGrange County, Steuben County, Indiana. It was in force for 36 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: May 31, 1998, 11:54 AM EST (16:54 UTC)
Expired: May 31, 1998, 12:30 PM EST
In force: 36 min
Issued by: NWS Northern Indiana
Area: Whole counties

Counties LaGrange County, IN, Steuben County, IN

The radar

The Northern Indiana radar (KIWX), 51 km from the middle of the area, began a volume at 16:55 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 nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 4.9 hours before the alert went out and 190 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1019 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 0 m²/s²
0-3 km storm-relative helicity: 18 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KFWA 311653 RRA
TORFWA
INC087-151-311730-

BULLETIN- EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1154 AM EST SUN MAY 31 1998

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

* TORNADO WARNING FOR...
  LAGRANGE COUNTY IN NORTHEASTERN INDIANA
  STEUBEN COUNTY IN NORTHEASTERN INDIANA

* UNTIL 1230 PM EST

* AT 1153 AM EST... DOPPLER RADAR AT NORTH WEBSTER INDICATED A
  POSSIBLE TORNADO 10 MILES WEST SOUTHWEST OF ANGOLA OR 8 MILES
  NORTHWEST OF ASHLEY MOVING EAST AT 50 MPH.

* SOME LOCATIONS IN THE PATH OF THIS TORNADO ARE...
  ASHLEY
  PLEASANT LAKE
  ANGOLA
  STEUBENVILLE
  ELLIS
  HAMILTON
  METZ

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

TAL

The office that day

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

Issued	Product	Office	Counties	Lasted
May 31, 12:14 PM EST	Tornado Warning	IWX	DeKalb	51 min
May 31, 12:17 PM EST	Severe Thunderstorm Warning	IWX	Noble	48 min
May 31, 12:35 PM EST	Tornado Warning	IWX	Noble	50 min
May 31, 12:49 PM EST	Tornado Warning	IWX	Allen	46 min
May 31, 1:05 PM EST	Tornado Warning	IWX	DeKalb	30 min
May 31, 1:07 PM EST	Severe Thunderstorm Warning	IWX	Whitley	48 min
May 31, 1:35 PM EST	Severe Thunderstorm Warning	IWX	Allen	50 min
May 31, 1:39 PM EST	Severe Thunderstorm Warning	IWX	Allen	46 min
May 31, 1:48 PM EST	Severe Thunderstorm Warning	IWX	Grant	62 min
May 31, 1:59 PM EST	Severe Thunderstorm Warning	IWX	Blackford	46 min
May 31, 2:05 PM EST	Tornado Warning	IWX	Blackford, Grant	50 min
May 31, 2:09 PM EST	Severe Thunderstorm Warning	IWX	Jay	51 min
May 31, 2:31 PM EST	Severe Thunderstorm Warning	IWX	Adams, Wells	49 min
May 31, 3:38 PM EST	Severe Thunderstorm Warning	IWX	Grant	47 min
May 31, 4:15 PM EST	Tornado Warning	IWX	Blackford	35 min
May 31, 4:23 PM EST	Severe Thunderstorm Warning	IWX	Jay	32 min
May 31, 4:29 PM EST	Tornado Warning	IWX	Jay	31 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.