Alert archive / Illinois / Tornado Warnings in 1998

Tornado Warning 71, NWS Lincoln, IL

May 19, 1998Vermilion County, Illinois

NWS Lincoln, IL issued this tornado warning at May 19, 1998, 6:33 PM CDT for Vermilion County, Illinois. It was in force for 42 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 19, 1998, 6:33 PM CDT (23:33 UTC)
Expired: May 19, 1998, 7:15 PM CDT
In force: 42 min
Issued by: NWS Lincoln, IL
Area: Whole counties

County Vermilion County, IL

The radar

The Indianapolis radar (KIND), 135 km from the middle of the area, began a volume at 23:35 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.

Issued	Product	Office	Lasted
May 19, 6:00 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 11.6 hours before the alert went out and 74 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: 1768 J/kg
Mixed-layer CIN: -211 J/kg
Mixed-layer LCL: 1007 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 134 m²/s²
0-3 km storm-relative helicity: 108 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.

554 
WFUS1 KSPI 192333 RRA
TORSPI
ILC183-200015-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
633 PM CDT TUE MAY 19 1998

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* TORNADO WARNING FOR
  VERMILION COUNTY IN EAST CENTRAL ILLINOIS

* UNTIL 715 PM CDT

* AT 630 PM CDT DOPPLER RADAR AND LAW ENFORCEMENT INDICATED A
  POSSIBLE TORNADO 5 MILES WEST OF GEORGETOWN OR 10 MILES SOUTHWEST
  OF DANVILLE....MOVING SOUTHEAST AT 20 MPH..

* THIS STORM IS EXPECTED TO AFFECT AREAS AROUND...
  GOERGETOWN
  SIDELL
  WESTVILLE

A BRIEF TORNADO TOUCHDOWN WAS REPORTED BY SPOTTERS WEST OF
GEORGETOWN.

THE TORNADO MAY BE OBSCURED BY RAIN AND MAY NOT BE VISIBLE. TAKE
COVER IN A BASEMENT OR INTERIOR ROOM ON THE LOWEST FLOOR.

KETCHAM

The office that day

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

Issued	Product	Office	Counties	Lasted
May 19, 5:01 PM CDT	Severe Thunderstorm Warning	ILX	Knox	44 min
May 19, 5:14 PM CDT	Severe Thunderstorm Warning	ILX	Vermilion	31 min
May 19, 5:24 PM CDT	Severe Thunderstorm Warning	ILX	Peoria	36 min
May 19, 5:42 PM CDT	Tornado Warning	ILX	Fulton, Knox, Peoria	48 min
May 19, 5:50 PM CDT	Severe Thunderstorm Warning	ILX	Vermilion	40 min
May 19, 5:55 PM CDT	Severe Thunderstorm Warning	ILX	Marshall, Stark	50 min
May 19, 6:26 PM CDT	Severe Thunderstorm Warning	ILX	Fulton, Peoria, Tazewell, Woodford	49 min
May 19, 6:49 PM CDT	Flash Flood Warning	ILX	Fulton	3 hr
May 19, 6:58 PM CDT	Severe Thunderstorm Warning	ILX	Logan, Mason	47 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.