Alert archive / Illinois / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 113, NWS Lincoln, IL

June 11, 1998Champaign County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Jun 11, 1998, 4:49 PM CDT for Champaign County, Illinois. It was in force for 56 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, 4:49 PM CDT (21:49 UTC)
Expired
Jun 11, 1998, 5:45 PM CDT
In force
56 min
Issued by
NWS Lincoln, IL
Area
Whole counties

County Champaign County, IL

The radar

The Lincoln radar (KILX), 97 km from the middle of the area, began a volume at 21:52 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

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 9.8 hours before the alert went out and 34 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°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.

678 
WUUS1 KSPI 112150 RRA
SVRSPI
ILC019-112245-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
449 PM CDT THU JUN 11 1998

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR
  CHAMPAIGN COUNTY IN EAST CENTRAL ILLINOIS

* UNTIL 545 PM CDT

* AT 448 PM CDT LINCOLN DOPPLER RADAR INDICATED A LINE OF SEVERE
  THUNDERSTORMS EXTENDING FROM JUST EAST OF FARMER CITY TO MONTICELLO
  TO CERRO GORDO...MOVING NORTHEAST AT 40 MPH.

* THIS STORM IS EXPECTED TO AFFECT AREAS AROUND...
  MAHOMET
  LAKE OF THE WOODS
  CHAMPAIGN/URBANA
  RANTOUL

THIS STORM WILL PRODUCE DAMAGING WINDS AND LARGE HAIL. MOVE TO A
STURDY BUILDING AND STAY AWAY FROM WINDOWS.

REMEMBER...SEVERE THUNDERSTORMS MAY PRODUCE TORNADOES AT ANY TIME.

BYRD/KETCHAM

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 11, 2:58 PM CDTTornado WarningILXMorgan, Sangamon47 min
Jun 11, 3:42 PM CDTSevere Thunderstorm WarningILXTazewell48 min
Jun 11, 3:46 PM CDTTornado WarningILXSangamon44 min
Jun 11, 3:55 PM CDTTornado WarningILXKnox, Stark35 min
Jun 11, 4:04 PM CDTSevere Thunderstorm WarningILXWoodford41 min
Jun 11, 4:11 PM CDTSevere Thunderstorm WarningILXChristian, Macon49 min
Jun 11, 4:36 PM CDTSevere Thunderstorm WarningILXMoultrie, Piatt54 min
Jun 11, 4:36 PM CDTSevere Thunderstorm WarningILXShelby54 min
Jun 11, 5:13 PM CDTTornado WarningILXMoultrie, Shelby47 min
Jun 11, 5:25 PM CDTSevere Thunderstorm WarningILXVermilion35 min
Jun 11, 6:02 PM CDTSevere Thunderstorm WarningILXRichland43 min

Nearby

Severe Thunderstorm Warnings in Illinois, 1998Every severe thunderstorm warning 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.