Alert archive / Illinois / Tornado Warnings in 1986

Tornado Warning 16, NWS Lincoln, IL

September 24, 1986Marshall County, Woodford County, Illinois

NWS Lincoln, IL issued this tornado warning at Sep 24, 1986, 6:43 PM CDT for Marshall County, Woodford County, Illinois. It was in force for 62 min.

The area

The counties it named.

The facts

Issued
Sep 24, 1986, 6:43 PM CDT (23:43 UTC)
Expired
Sep 24, 1986, 7:45 PM CDT
In force
62 min
Issued by
NWS Lincoln, IL
Area
Whole counties

Counties Marshall County, IL, Woodford 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

Peoria Regional, IL (KPIA), launched 12:00Z, 11.7 hours before the alert went out and 38 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, Peoria Regional, IL at 12:00Z on 1986-09-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 8 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, Peoria Regional, IL at 12:00Z on 1986-09-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 113 square meters per square second.193958Sfc1 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
8 J/kg
Mixed-layer CIN
-63 J/kg
Mixed-layer LCL
688 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
113 m²/s²
0-3 km storm-relative helicity
101 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 KPIA 242343
TORPIA
ILC123-203-250045-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING
NATIONAL WEATHER SERVICE PEORIA IL
643 PM CDT WED SEP 24 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 745 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF

CENTRAL ILLINOIS...SOUTHEAST MARSHALL AND CENTRAL AND NORTHEAST 
 WOODFORD

AT 630 PM CDT A TORNADO WAS ON THE GROUND IN NORTH CENTRAL
WOODFORD COUNTY JUST NORTH OF ROANOKE MOVING NORTHEAST AT 30 MPH.

COMMUNITIES DIRECTLY IN THE PATH OF THIS STORM ARE BENSON AND
MINONK AND DANA IN SOUTHEAST MARSHAL COUNTY.

 IF YOU ARE IN THE PATH OF THIS TORNADO...YOU SHOULD GO TO A
BASEMENT SHELTER IF AVAILABLE.  OTHERWISE GO TO A CENTRAL INTERIOR
ROOM ON THE LOWEST FLOOR POSSIBLE.  ABANDON CARS AND MOBILE HOMES
FOR A REINFORCED BUILDING.

ATTN ISP 8

STUMETZ

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 24, 5:33 PM CDTTornado WarningILXPeoria, Woodford57 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.