Alert archive / Indiana / Tornado Warnings in 1998

Tornado Warning 6, NWS Chicago, IL

June 11, 1998Jasper County, Newton County, Indiana

NWS Chicago, IL issued this tornado warning at Jun 11, 1998, 5:17 PM CDT for Jasper County, Newton County, Indiana. It was in force for 28 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 11, 1998, 5:17 PM CDT (22:17 UTC)
Expired
Jun 11, 1998, 5:45 PM CDT
In force
28 min
Issued by
NWS Chicago, IL
Area
Whole counties

Counties Jasper County, IN, Newton County, IN

The radar

The Chicago radar (KLOT), 97 km from the middle of the area, began a volume at 22:19 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.

IssuedProductOfficeLasted
Jun 11, 2:30 PM CDTSevere Thunderstorm WatchSPC7 hr
Jun 11, 5:00 PM CDTTornado WatchSPC5 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 10.3 hours before the alert went out and 147 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, Lincoln, IL at 12:00Z on 1998-06-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.1000850700500300200100-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 12:00Z on 1998-06-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 42 square meters per square second.1939Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
6598 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
42 m²/s²
0-3 km storm-relative helicity
34 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 KCHI 112217 RRA
TORCHI
INC073-111-112245-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CHICAGO IL
517 PM CDT THU JUN 11 1998

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A

* TORNADO WARNING FOR...
  JASPER COUNTY IN NORTHWEST INDIANA
  NEWTON COUNTY IN NORTHWEST INDIANA

* UNTIL 545 PM CDT

* AT 515 PM CDT DOPPLER RADAR INDICATED A TORNADO ABOUT 5 MILES SOUTH
  OF MOROCCO IN NEWTON COUNTY. THE SEVERE THUNDERSTORM PRODUCING THE
  TORNADO IS MOVING TO THE NORTHEAT AT 40 MPH.

* THE TORNADO WILL PASS NEAR...
  BEAVER CITY
  MOUNT AYR
  NORTH NEWTON
  SURREY

GO TO THE BASEMENT OR A SMALL INTERIOR ROOM ON THE LOWEST FLOOR!

$$
SOMREK

The office that day

Everything else NWS Chicago, IL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 11, 4:57 PM CDTSevere Thunderstorm WarningLOTNewton33 min
Jun 11, 5:50 PM CDTSevere Thunderstorm WarningLOTJasper25 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.