Alert archive / Illinois / Tornado Warnings in 1998

Tornado Warning 30, NWS Lincoln, IL

April 7, 1998Edgar County, Illinois

NWS Lincoln, IL issued this tornado warning at Apr 7, 1998, 7:39 PM CDT for Edgar County, Illinois. It was in force for 51 min. 4 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: Apr 7, 1998, 7:39 PM CDT (00:39 UTC)
Expired: Apr 7, 1998, 8:30 PM CDT
In force: 51 min
Issued by: NWS Lincoln, IL
Area: Whole counties

County Edgar County, IL

What was reported inside it

Time	Report	Where	Remark
Apr 7, 8:11 PM CDT	Tornado F0	Brocton, IL	A tornado briefly touched down 4 miles north of Brocton. A shed was destroyed and 7 utility poles were either bent or snapped off completely. No injuries were reported and no damage estimate was available.
Apr 7, 8:14 PM CDT	Hail 1.75	Chrisman, IL
Apr 7, 8:15 PM CDT	Tornado F0	Chrisman, IL	A tornado briefly touched down in a field near Chrisman. It tore off some metal siding and roofing from a barn on the west side of town. It then threw the debris throughout the town, causing minor damage to several homes and businesses, including breaking a
Apr 7, 8:29 PM CDT	Tornado F0	Hume, IL	A tornado briefly touched down in a field 2 miles northeast of Hume. No injuries or damage were reported.

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 watch it was issued in

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

Issued	Product	Office	Lasted
Apr 7, 4:15 PM CDT	Tornado Watch	SPC	6 hr
Apr 7, 7:00 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 0.7 hours before the alert went out and 90 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: 756 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 671 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 75 m²/s²
0-3 km storm-relative helicity: 185 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 2.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSPI 080041 RRA
TORSPI
ILC045-080130-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
739 PM CDT TUE APR 7 1998

* TORNADO WARNING FOR
  EDGAR COUNTY IN EAST CENTRAL ILLINOIS

* UNTIL 830 PM CDT

* SOME LOCATIONS AFFECTED
  CHRISMAN
  PARIS
  KANSAS
  REDMON

* AT 735 PM CDT LINCOLN DOPPLER RADAR INDICATED A POSSIBLE TORNADO 8
  MILES NORTH OF MATTOON...MOVING EAST AT 25 MPH.

TAKE COVER IMMEDIATELY IN A BASEMENT OR INTERIOR ROOM ON THE LOWEST
FLOOR. ABANDON MOBILE HOMES AND VEHICLES FOR SAFER SHELTER.

FRIEDERS

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 7, 7:01 PM CDT	Tornado Warning	ILX	Vermilion	59 min
Apr 7, 7:03 PM CDT	Tornado Warning	ILX	Coles, Douglas	57 min
Apr 7, 7:13 PM CDT	Tornado Warning	ILX	Peoria, Tazewell	62 min
Apr 7, 7:23 PM CDT	Tornado Warning	ILX	Woodford	67 min
Apr 7, 7:28 PM CDT	Tornado Warning	ILX	DeWitt, McLean	62 min
Apr 7, 8:00 PM CDT	Tornado Warning	ILX	Douglas	45 min
Apr 7, 8:10 PM CDT	Tornado Warning	ILX	Vermilion	50 min
Apr 7, 8:24 PM CDT	Tornado Warning	ILX	DeWitt, McLean	66 min
Apr 7, 8:28 PM CDT	Tornado Warning	ILX	Edgar	62 min
Apr 7, 8:36 PM CDT	Tornado Warning	ILX	Effingham	54 min
Apr 7, 9:08 PM CDT	Severe Thunderstorm Warning	ILX	Champaign, Piatt	52 min
Apr 7, 9:11 PM CDT	Tornado Warning	ILX	Jasper	64 min
Apr 7, 9:30 PM CDT	Tornado Warning	ILX	Clay, Effingham	60 min
Apr 7, 9:48 PM CDT	Tornado Warning	ILX	Champaign, Douglas	42 min
Apr 7, 10:07 PM CDT	Tornado Warning	ILX	Clark	53 min
Apr 7, 10:22 PM CDT	Tornado Warning	ILX	Jasper	53 min
Apr 7, 10:33 PM CDT	Tornado Warning	ILX	Clay	57 min
Apr 7, 11:09 PM CDT	Tornado Warning	ILX	Crawford, Jasper	51 min

Nearby

Tornado Warnings in Illinois, 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.