Alert archive / Illinois / Tornado Warnings in 1987

Tornado Warning 6, NWS Lincoln, IL

April 13, 1987Christian County, Illinois

NWS Lincoln, IL issued this tornado warning at Apr 13, 1987, 10:42 AM CDT for Christian County, Illinois. It was in force for 18 min.

The area

The counties it named.

The facts

Issued: Apr 13, 1987, 10:42 AM CDT (15:42 UTC)
Expired: Apr 13, 1987, 11:00 AM CDT
In force: 18 min
Issued by: NWS Lincoln, IL
Area: Whole counties

County Christian 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, 3.7 hours before the alert went out and 105 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1230 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 283 m²/s²
0-3 km storm-relative helicity: 418 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.7

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSPI 131542
TORSPI
ILC021-131600-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD IL
1042 AM CDT MON APR 13 1987

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 1100 AM CDT FOR PEOPLE IN THE FOLLOWING COUNTY OF

CENTRAL ILLINOIS...CHRISTIAN

AT 10 30 AM CDT A TORNADO WAS REPORTED 8 MILES  NORTHWEST OF
MORRISONVILLE ILLINOIS...30 MILES SOUTH SOUTHEAST OF SPRINGFIELD...
IN CHRISTIAN COUNTY.

SOME INJURIES WAS REPORTED FROM FLYING DEBRIS.

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 MOBIL HOMES
FOR A REINFORCED BUILDING.

 ATTN ISP DIST...9

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

Local storm report, Apr 13, 10:06 AM CDT, 36 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE PEORIA IL
1000 AM CDT MON APR 13 1987

...STORM REPORT FOR THE AFTERNOON OF SATURDAY APRIL 11...

TIME        EVENT

2 34 PM     HAIL             MOLINE RADAR AND  CITIZEN REPORTS OF
                             PEA SIZE HAIL NEAR GALESBURG.

3 05 PM     SPS ISSUED       A SPECIAL WEATHER STATEMENT WAS ISSUED
                             FOR HEAVY THUNDERSTORMS THAT DEVELOPED
                             ON A LINE FROM MOLINE TO CANTON, IL.

3 30 PM     FUNNEL           THE FARMINGTON FIRE DEPARTMENT REPORTED
                             NUMEROUS SIGHTINGS OF A FUNNEL CLOUD OVER
                             FARMINGTON IN THE NORTHEAST CORNER OF
                             FULTON COUNTY.  THERE WAS NO CONFIRMATION
                             OF THE FUNNEL TOUCHING DOWN OR REPORTS OF
                             ANY DAMAGE.

3 51 PM     TOR WARNING      A TORNADO WARNING WAS ISSUED FOR PEORIA AND
            ISSUED           WESTERN WOODFORD COUNTIES IN ILLINOIS VALID
                             UNTIL 500 PM CDT.  ISSUANCE BASED ON THE
                             NUMEROUS FUNNEL CLOUD SIGHTINGS.

4 05 PM     SMALL HAIL       CITIZEN REPORT OF SMALL HAIL ON THE WEST
                             SIDE OF THE CITY OF PEORIA.

4 06 PM     HAIL             ANOTHER REPORT OF HAIL, THIS TIME MARBLE
                             SIZE, WAS RECEIVED FROM A CITIZEN NEAR
                             RTES 6 AND 88 IN PEORIA COUNTY.

4 10 PM     FUNNEL & HAIL    REPORT FROM THE DUNLAP FIRE DEPARTMENT OF
                             NUMEROUS SIGHTINGS OF A FUNNEL CLOUD OVER
                             DUNLAP.  ALSO, A REPORT OF A HEAVY ACCUMU-
                             LATION OF HAIL IN ALTA.  THERE WAS NO
                             CONFIRMATION OF TOUCHDOWN OR DAMAGE FROM
                             THE FUNNEL CLOUD.

4 22 PM     HAIL             THE WOODFORD COUNTY CIVIL DEFENSE RELAYED
                             A REPORT OF GOLF BALL SIZE HAIL 2 MILES
                             NORTH OF METAMORA IN WEST CENTRAL WOODFORD
                             COUNTY.

4 49 PM     HAIL             THE MCLEAN COUNTY CIVIL DEFENSE REPORTED
                             PEA SIZE HAIL IN CARLOCK.

5 25 PM     HAIL             THE MCLEAN COUNTY CIVIL DEFENSE REPORTED
                             PEA SIZE HAIL NEAR LEXINGTON IN NORTH
                             CENTRAL MCLEAN COUNTY.

NADOLSKI/WSO PIA

Nearby

Tornado Warnings in Illinois, 1987 Every tornado warning in 1987 Tornadoes 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.