Alert archive / Illinois / Tornado Warnings in 1986

Tornado Warning 8, NWS Lincoln, IL

July 10, 1986Champaign County, Illinois

NWS Lincoln, IL issued this tornado warning at Jul 10, 1986, 8:45 PM CDT for Champaign County, Illinois. It was in force for 30 min.

The area

The counties it named.

The facts

Issued
Jul 10, 1986, 8:45 PM CDT (01:45 UTC)
Expired
Jul 10, 1986, 9:15 PM CDT
In force
30 min
Issued by
NWS Lincoln, IL
Area
Whole counties

County Champaign County, IL

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Salem-Leckrone, IL (KSLO), launched 00:00Z, 1.8 hours before the alert went out and 176 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, Salem-Leckrone, IL at 00:00Z on 1986-07-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 933 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Salem-Leckrone, IL at 00:00Z on 1986-07-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 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
933 J/kg
Mixed-layer CIN
-97 J/kg
Mixed-layer LCL
1223 m above ground
0-6 km bulk shear
0 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
0 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 KSPI 110145
TORSPI
ILC019-110215-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD IL
845 PM CDT THU JUL 10 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 915 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY OF

EAST CENTRAL ILLINOIS...CHAMPAIGN

AT 840 PM CDT A CONFIRMED FUNNEL CLOUD WAS REPORTED BY CHAMPAIGN
COUNTY EMERGENCY SERVICES AND DISASTER AGENCY 2 MILES NORTH OF
PHILO ILLINOIS WHICH IS 8 MILES SOUTHEAST OF CHAMPAIGN ILLINOIS.

FUNNEL CLOUDS CAN AND OCCASIONALLY DO PRODUCE A TORNADO WITH LITTLE
OR NO ADVANCE WARNING..SO BE ON THE LOOKOUT AND BE PREPARED TO MOVE
TO A PLACE OF SAFETY.

 ATTN UISP DIST...10
 HILLIARD

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 10, 7:35 PM CDTSevere Thunderstorm WarningILXDeWitt, Macon55 min
Jul 10, 7:57 PM CDTSevere Thunderstorm WarningILXCass, Morgan63 min
Jul 10, 7:57 PM CDTSevere Thunderstorm WarningILXMenard63 min
Jul 10, 8:01 PM CDTSevere Thunderstorm WarningILXPiatt59 min
Jul 10, 8:09 PM CDTTornado WarningILXDeWitt, Piatt21 min
Jul 10, 8:17 PM CDTSevere Thunderstorm WarningILXSangamon58 min
Jul 10, 8:55 PM CDTTornado WarningILXMacon35 min
Jul 10, 9:05 PM CDTTornado WarningILXDouglas, Edgar, Vermilion25 min
Jul 10, 9:50 PM CDTTornado WarningILXChampaign25 min
Jul 11, 2:59 PM CDTSevere Thunderstorm WarningILXEdgar, Vermilion61 min

Nearby

Tornado Warnings in Illinois, 1986Every tornado warning in 1986Tornadoes in 1986

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.