Alert archive / Illinois / Tornado Warnings in 1998

Tornado Warning 73, NWS Lincoln, IL

May 22, 1998Christian County, Illinois

NWS Lincoln, IL issued this tornado warning at May 22, 1998, 9:56 PM CDT for Christian County, Illinois. It was in force for 34 min. 1 report 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: May 22, 1998, 9:56 PM CDT (02:56 UTC)
Expired: May 22, 1998, 10:30 PM CDT
In force: 34 min
Issued by: NWS Lincoln, IL
Area: Whole counties

County Christian County, IL

The radar

The Lincoln radar (KILX), 67 km from the middle of the area, began a volume at 02:56 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.

What was reported inside it

Time	Report	Where	Remark
May 22, 10:27 PM CDT	Hail 1	Kincaid, IL

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 nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 2.9 hours before the alert went out and 89 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: 5 J/kg
Mixed-layer CIN: -616 J/kg
Mixed-layer LCL: 570 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 257 m²/s²
0-3 km storm-relative helicity: 430 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSPI 230256 RRA
TORSPI
ILC021-230330-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
956 PM CDT FRI MAY 22 1998

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* TORNADO WARNING FOR
  CHRISTIAN COUNTY IN CENTRAL ILLINOIS

* UNTIL 1030 PM CDT

* AT 951 PM CDT LINCOLN DOPPLER RADAR INDICATED A POSSIBLE TORNADO
  10 MILES SOUTHWEST OF TAYLORVILLE...MOVING EAST AT 35 MPH.

* THIS STORM IS EXPECTED TO AFFECT AREAS AROUND.J..
  TOVEY
  TAYLORVILLE
  CLARKSDALE
  ASSUMPTION

TORNADOES ARE ESPECIALLY DANGEROUS AT NIGHT BECAUSE THEY ARE HARD
TO SEE. TAKE COVER IN A BASEMENT OR INTERIOR ROOM ON THE LOWEST
FLOOR.

LEWIS/BYRD

The office that day

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

Issued	Product	Office	Counties	Lasted
May 22, 10:32 PM CDT	Severe Thunderstorm Warning	ILX	Christian, Moultrie, Shelby	43 min
May 22, 11:27 PM CDT	Severe Thunderstorm Warning	ILX	Cumberland	33 min
May 23, 12:03 AM CDT	Severe Thunderstorm Warning	ILX	Crawford	42 min
May 23, 2:35 AM CDT	Severe Thunderstorm Warning	ILX	Macon, Piatt	40 min
May 23, 3:04 AM CDT	Severe Thunderstorm Warning	ILX	Champaign	41 min
May 23, 4:34 AM CDT	Severe Thunderstorm Warning	ILX	Piatt	41 min
May 23, 5:19 AM CDT	Severe Thunderstorm Warning	ILX	Douglas	41 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; radar from the NEXRAD Level II archive.