Alert archive / Illinois / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 5, NWS Lincoln, IL

May 14, 1987Christian County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at May 14, 1987, 4:55 PM CDT for Christian County, Illinois. It was in force for 65 min.

The area

The counties it named.

The facts

Issued
May 14, 1987, 4:55 PM CDT (21:55 UTC)
Expired
May 14, 1987, 6:00 PM CDT
In force
65 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, 9.9 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-pSkew-T log-p diagram, Salem-Leckrone, IL at 12:00Z on 1987-05-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 917 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 12:00Z on 1987-05-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -13 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
917 J/kg
Mixed-layer CIN
-57 J/kg
Mixed-layer LCL
1117 m above ground
0-6 km bulk shear
5 kt
0-1 km storm-relative helicity
-13 m²/s²
0-3 km storm-relative helicity
2 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What forecasters said that day

The local office's own words before this severe thunderstorm 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, May 14, 1:32 PM CDT, 3 hours 23 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
130 PM CDT THU MAY 14 1987

...THUNDERSTORMS BEGINNING TO RUMBLE THROUGH NORTH CENTRAL ILLINOIS...

AT 115 PM THIS AFTERNOON...SHOWERS AND SCATTERED HEAVY THUNDERSTORMS
WERE MOVING THROUGH NORTH CENTRAL ILLINOIS.  THE HEAVIEST WAS LOCATED
IN BUREAU COUNTY NEAR THE TOWN OF WYANET.  OTHER HEAVY THUNDERSTORMS
WERE LOCATED BETWEEN THE TOWNS OF BENSON AND ROANOKE IN CENTRAL
WOODFORD COUNTY.  0THESE THUNDERSTORMS WERE PRODUCING PEA SIZE HAIL...
DANGEROUS LIGHTNING AND HEAVY RAIN AS THEY MOVED THROUGH.

ALL SHOWERS AND THUNDERSTORMS WERE MOVE EAST AT 35 MPH.

NADOLSKI/WSO PIA
Special weather statement, May 14, 2:06 PM CDT, 2 hours 49 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
200 PM CDT THU MAY 14 1987

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR THE EASTERN HALF OF
    MCLEAN COUNTY UNTIL 800 PM TONIGHT...

AT 200 THIS AFTERNOON RADAR INDICATED A LINE OF OF THUNDERSTORMS THAT
EXTENDED FROM PONTIAC TO MACKINAW IN TAZEWELL COUNTY.  THE HEAVIEST WAS
INDICATED NEAR MORTON IN TAZEWELL COUNTY AND CARLOCK IN MCLEAN COUNTY.

PEA SIZE HAIL...DANGEROUS LIGHTNING AND HEAVY RAIN CAN BE EXPECTED
WITH THESE STORMS AS THEY MOVE THROUGH THESE AREAS.

THESE STORMS WERE MOVING TO THE EAST AT 35 MPH.

PERSONS NEAR THE CITIES OF DANVERS...AND BLOOMINGTON SHOULD KEEP AN
EYE TO THE SKY FOR THREATENING WEATHER.

YNADOLSKI/WSO PIA
Special weather statement, May 14, 2:42 PM CDT, 2 hours 13 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD IL
3 35PM CDT THU MAY 14 1987

...STRONG THUNDERSTORMS MOVING INTO CENTRAL ILLINOIS...

AT 3 30 PM CDT WEATHER SERVICE RADARS SHOWS THE LEADING EDGE OF
AN AREA OF SHOWERS AND THUNDERSTORMS FROM NEAR JACKSONVILLE TO
15 MILES NORTHWEST OF SPRINGFIELD TO JUST SOUTHEAST OF BLOOMINGTON
ILLINOIS.

THE STRONGEST THUNDERSTORMS WERE JUST NORTHWEST OF CLINTON ILLINOIS
AND NEAR CHANDLERSVILLE IiLLINOIS.

THE AREA OF THUNDERSTORMS WAS MOVING SOUTHEAST AT 25 MPH.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR PORTIONS OF CENTRAL
AND EASTERN ILLINOIS UNTIL 8 15 PM CDT.
HILLIARD
Special weather statement, May 14, 3:00 PM CDT, 1 hour 55 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
300 PM CDT THU MAY 14 1987

...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR THE EASTERN HALF
   OF MCLEAN COUNTY UNTIL 800 PM TONIGHT...

AT 250 THIS AFTERNOON RADAR INDICATED A 15 MILE WIDE LINE OF THUNDER-
STORMS THAT EXTENDED COLFAX IN NORTHEAST MCLEAN COUNTY...SOUTHWEST
THROUGH THE BLOOMINGTON-NORMAL AREA ON INTO DELAVAN IN SOUTHERN
TAZEWELL COUNTY.  THE HEAVIEST ACTIVITY WAS LOCATED IN  MCLEAN
COUNTY SOUTHEAST OF BLOOMINGTON...AND IN SOUTHEASTERN TAZEWELL COUNTY
SOUTH OF MINIER.  THERE HAVE BEEN NUMEROUS REPORTS OF PEA SIZE HAIL...
DANGEROUS LIGHTNING AND HEAVY RAIN AS THESE THUNDERSTORMS MOVED
THROUGH.

OTHER SHOWER}S AND THUNDERSTORMS WERE LOCATED WELL TO THE SOUTHWEST OF
PEORIA IN FULTON...MASON AND SCHUYLER COUNTIES

ALL SHOWERS AND THUNDERSTORMS WERE CONTINUING TO MOVE TO THE EAST
SOUTHEAST AT 35 MPH.

NADOLSKI/WSO PIA
Special weather statement, May 14, 4:08 PM CDT, 47 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD IL
4 03PM CDT THU MAY 14 1987

...STRONG THUNDERSTORMS MOVING THROUGH CENTRAL ILLINOIS...

AT 3 35 PM CDT A STRONG THUNDERSTORM NEAR WAPELLA, ILLINOIS...23 MILES
NORTH OF DECATUR, ILLINOIS, PRODUCED HIGH WINDS WHICH DOWNED TREES
LIMBS AND RESULTED IN POWER OUTAGES. PEA SIZE HAIL ALSO ACCOMPANIED
THE STORM.

A SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT FOR A LARGE PART OF
EAST CENTRAL ILLINOIS UNTIL 800 PM CDT.

AT 400 PM CDT A LINE OF STRONG THUNDERSTORMS...ABOUT 30 MILES WIDE...
EXTENDED FROM LOUISIANA, MISSOURI TO 20 MILES SOUTH OF SPRINGFIELD,
ILLINOIS TO JUST NORTH OF DANVILLE, ILLINOIS.

THE STRONGEST THUNDERSTORM ALONG THIS LINE WAS LOCATED JUST NORTHWEST
OF DECATUR, ILLINOIS IN MACON COUNTY AND MAY PRODUCE HAIL...STRONG
GUSTY WINDS...DANGEROUS LIGHTNING AND HEAVY DOWNPOURS.

THE LINE OF STRONG THUNDERSTORMS WAS MOVING SOUTHEAST AT 25 MPH.

HUGHES
Special weather statement, May 14, 4:32 PM CDT, 23 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
430 PM CDT THU MAY 14 1987

...THE SEVERE THUNDERSTORMS WATCH FOR THE EASTERN HALF OF MCLEAN COUNTY
   HAS BEEN CANCELLED...

AT 425 THIS AFTERNOON RADAR COTINUED TO INDICATE A STRONG THUNDERSTORM
JUST OT THE WEST OF LEROY IN SOUTHCENTRAL MCLEAN COUNTY.  PEA SIZE HAIL
...INTENSE LIGHTNING AND HEAVY RAIN HAVE BEEN REPORTED WITH THIS STORM.
HOWEVER...NO SEVERE WEATHER HAS BEEN REPORTED WITH THIS STORM.

THE STORM WAS MOVING TO THE EAST AT 35 MPH AND SHOULD CONTINUE TO SKIRT
THE SOUTHERN PART OF MCLEAN COUNTY FOR THE NEXT HOUR OR SO.

THIS WILL BE THE LAST STATEMENT ON THIS WEATHER SITUATION UNLESS
CONDITIONS WARRANT.

NADOLSKI/WSO PIA

Nearby

Severe Thunderstorm Warnings in Illinois, 1987Every severe thunderstorm warning 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.