Alert archive / Illinois / Tornado Warnings in 1987
Tornado Warning 19, NWS Lincoln, IL
NWS Lincoln, IL issued this tornado warning at Jun 12, 1987, 3:32 PM CDT for Clark County, Illinois. It was in force for 28 min.
The area
The counties it named.
The facts
- Issued
- Jun 12, 1987, 3:32 PM CDT (20:32 UTC)
- Expired
- Jun 12, 1987, 4:00 PM CDT
- In force
- 28 min
- Issued by
- NWS Lincoln, IL
- Area
- Whole counties
County Clark 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 12:00Z, 8.5 hours before the alert went out and 123 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.
- Mixed-layer CAPE
- 762 J/kg
- Mixed-layer CIN
- -22 J/kg
- Mixed-layer LCL
- 714 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 24 m²/s²
- 0-3 km storm-relative helicity
- 48 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSPI 122032 TORSPI ILC023-122100- BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE SPRINGFIELD IL 332 PM CDT FRI JUN 12 1987 THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 400 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY OF EAST CENTRAL ILLINOIS...CLARK AT 325 PM CDT THE PUBLIC REPORTED A TORNADO 1 MILE SOUTHEAST OF WESTFIELD ILLINOIS IN CLARK COUNTY...ABOUT 30 MILES WEST OF TERRE HAUTE INDIANA. THE TORNADO WAS MOVING SOUTHEAST. IF YOU ARE IN THE PATH OF A TORNADO...GO TO A BASEMENT SHELTER IF AVAILABLE...OTHERWISE TO A CENTRAL INTERIOR ROOM ON THE LOWEST FLOOR. ABANDON CARS AND MOBILE HOMES FOR A REINFORCED BUILDING. IF YOU ARE IN AN AREA THREATENED BY THE STORM..GO TO A REINFORCED SHELTER AND PREPARE FOR DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN AND DANGEROUS LIGHTING. THIS IS A DANGEROUS STORM. TAKE COVER IMMEDIATELY. ATTN ISP DIST...12 HUGHES
What forecasters said that day
The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Jun 12, 12:50 PM CDT, 2 hours 42 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SPRINGFIELD IL 1250 PM CDT FRI JUN 12 1987 AT 1245 PM CDT RADAR INDICATED A DEVELOPING LINE OF VERY STRONG THUNDERSTORMS FROM DANVILLE ILLINOIS TO CHAMPAIGN TO 15 MILES SOUTHEAST OF DECATUR ILLINOIS. THE LINE WAS 15 MILES WIDE AND WAS MOVING SOUTHEAST AT 20 MPH. THE STRONGEST THUNDERSTORMS ALONG THE LINE WAS LOCATED 15 MILES SOUTH OF CHAMPAIGN AND 10 MILES WEST OF DANVILLE. THESE STORMS MAY PROFDUCE SOME HAIL...STRONG GUSTY WINDS...DANGEROUS LIGHTNING AND LOCAL DOWNPOURS. ATTN: ISP DIST 10 HUGHES
Special weather statement, Jun 12, 1:21 PM CDT, 2 hours 11 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SPRINGFIELD IL 118 PM CDT FRI JUN 12 1987 AT 115 PM CDT RADAR INDICATED A A LINE OF VERY STRONG THUNDERSTORMS 15 MILES WIDE FROM 15 MILES SOUTH OF CHAMPAIGN ILLINOIS TO JUST EAST OF DANVILLE ILLINOIS. THE STRONGEST THUNDERSTORM ALONG THE LINE WAS LOCATED 7 MILES WEST SOUTHWEST OF DANVILLE ILLINOIS. THESE STORMS MAY PRODUCE SOME HAIL...STRONG GUSTY WINDS...DANGEROUS LIGHTNING AND TORRENTIAL DOWUNPOURS. THE LINE OF THUNDERSTORMS WAS MOVING SOUTHEAST AT 20 MPH. ATTN: ISP DIST 10 HUGHES
Nearby
Tornado Warnings in Illinois, 1987Every tornado warning in 1987Tornadoes in 1987
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.