Alert archive / Illinois / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 75, NWS Lincoln, IL

August 1, 1994Bureau County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Aug 1, 1994, 5:21 PM CDT for Bureau County, Illinois. It was in force for 36 min.

The area

The counties it named.

The facts

Issued
Aug 1, 1994, 5:21 PM CDT (22:21 UTC)
Expired
Aug 1, 1994, 5:57 PM CDT
In force
36 min
Issued by
NWS Lincoln, IL
Area
Whole counties

County Bureau County, IL

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 10.4 hours before the alert went out and 361 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, Green Bay/Straub, WI at 12:00Z on 1994-08-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 371 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, Green Bay/Straub, WI at 12:00Z on 1994-08-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 48 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
371 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
522 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
48 m²/s²
0-3 km storm-relative helicity
48 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 012225 RRA
SVRPIA
ILC011-012330-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEORIA IL
521 PM CDT MON AUG 1 1994
 
THE NATIONAL WEATHER SERVICE IN PEORIA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  630 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTH CENTRAL ILLINOIS
 
   ...EASTERN BUREAU COUNTY
 
AT 520 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM NEAR DE PUE...31
MILES WEST OF MARSEILLES. THIS STORM IS MOVING TO THE EAST AT 10 MPH AND
WILL AFFECT THE COMMUNITIES OF SEATONVILLE...LADD...AND DALZELL BY 600
PM.
 
DAMAGING WINDS AND LARGE HAIL ARE LIKELY. GO INSIDE A STURDY
BUILDING AND STAY AWAY FROM WINDOWS!
 
WATERHOUSE
 T

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, Aug 1, 4:01 PM CDT, 1 hour 20 minutes before
ILZ042-043-047-048-050>053-059-060-012145-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD IL
400 PM CDT MON AUG 1 1994

...STRONG THUNDERSTORMS CONTINUE OVER CENTRAL ILLINOIS...

WEATHER RADAR AT 357 PM CDT INDICATED INTENSE THUNDERSTORMS FROM 15
MILES NORTHWEST OF SPRINGFIELD...NEAR PETERSBURG...TO 30 MILES
SOUTHWEST OF SPRINGFIELD.  THE STORMS WERE MOVING EAST AT 15 MPH.

THE STORMS WILL MOVE ACROSS MOST OF SANGAMON COUNTY INCLUDING THE
CITY OF SPRINGFIELD...AND NORTHERN MACOUPIN COUNTY BY 5 PM.

TAKE SHELTER IN A SUBSTANTIAL BUILDING FOR THE PROTECTION FROM THESE
STORMS.  50 MPH WINDS CAN KNOCK DOWN OLD TREE LIMBS WHICH MAY FALL ON
POWER LINES...VEHICLES AND PEOPLE.

zMOTORISTS SHOULD EXPECT VISIBILITIES NEAR ZERO IN HEAVY RAINFALL FROM
THESE STORMS.

SKIPPER /PALMER
Special weather statement, Aug 1, 4:10 PM CDT, 1 hour 11 minutes before
ILZ017-018-025>031-034>038-040-041-012215-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
410 PM CDT MON AUG 1 1994

...STRONG THUNDERSTORMS DEVELOPING ACROSS CENTRAL ILLINOIS...

AT 410 PM CDT...RADAR INDICATED A LINE OF STRONG THUNDERSTORMS
DEVELOPING FROM COLFAX...IN NORTHEASTERN MCLEAN COUNTY...WEST TO THE
WOODFORD/MCLEAN COUNTY BORDER...THEN SOUTHWEST THROUGH CENTRAL TAZEWELL
AND MASON COUNTIES. THESE THUNDERSTORMS ARE MOVING TO THE EAST AT 10
MPH.

HIGH WINDS...FREQUENT LIGHTNING AND HAIL MAY ACCOMPANY THESE STORMS.
Special weather statement, Aug 1, 4:14 PM CDT, 1 hour 7 minutes before
ILZ017-018-025>031-034>038-040-041-012215-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
410 PM CDT MON AUG 1 1994

...STRONG THUNDERSTORMS DEVELOPING ACROSS CENTRAL ILLINOIS...

AT 410 PM CDT...RADAR INDICATED A LINE OF STRONG THUNDERSTORMS
DEVELOPING FROM COLFAX...IN NORTHEASTERN MCLEAN COUNTY...WEST TO THE
WOODFORD/MCLEAN COUNTY BORDER...THEN SOUTHWEST THROUGH CENTRAL TAZEWELL
AND MASON COUNTIES. THESE THUNDERSTORMS ARE MOVING TO THE EAST AT 10
MPH.

HIGH WINDS...FREQUENT LIGHTNING AND HAIL MAY ACCOMPANY THESE STORMS.
Special weather statement, Aug 1, 5:10 PM CDT, 11 minutes before
ILZ017-018-025>031-034>038-040-041-012310-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
510 PM CDT MON AUG 1 1994

...STRONG THUNDERSTORMS CONTINUE TO DEVELOP ACROSS CENTRAL ILLINOIS...

AT 505 PM CDT...RADAR INDICATED AN AREA OF STRONG THUNDERSTORMS
EXTENDING FROM LEXINGTON...IN NORTHERN MCLEAN COUNTY...SOUTHWEST TO
BLOOMINGTON...THEN WEST INTO CARLOCK...IN SOUTHERN WOODFORD COUNTY AND
MACKINAW IN EASTERN TAZEWELL COUNTY. THESE STORMS MOVING TO THE EAST AT
10 MPH.

HIGH WINDS...FREQUENT LIGHTNING...PERIODS OF HEAVY RAINFALL AND HAIL MAY
ACCOMPANY THESE STORMS.

WATERHOUSE
Special weather statement, Aug 1, 5:11 PM CDT, 10 minutes before
ILZ042>048-050>057-059>063-012315-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD IL
511 PM CDT MON AUG 1 1994

...STRONG THUNDERSTORMS CONTINUE OVER CENTRAL ILLINOIS AND HAVE
DEVELOPED OVER EAST CENTRAL ILLINOIS.

AT 505 PM CDT...RADAR INDICATED A LINE OF STRONG THUNDERSTORMS FROM
20 MILES NORTH OF CHAMPAIGN...NEAR GIBSON CITY TO 50 MILES SOUTH OF
SPRINGFIELD NEAR HILLSBORO.  THE STORMS WERE MOVING EAST AT 15 MPH AND
SHOULD MOVE ACROSS SHELBY...CHRISTIAN...MACON...PIATT AND NORTHWESTERN
CHAMPAIGN COUNTIES.

SOME OF THESE STORMS MAY CONTAIN SMALL HAIL...GUSTY WINDS TO 45
MPH...DEADLY LIGHTNING AND VERY HEAVY DOWNPOURS OF RAIN.

SKIPPER
Special weather statement, Aug 1, 5:13 PM CDT, 8 minutes before
ILZ017-018-025>031-034>038-040-041-012310-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
510 PM CDT MON AUG 1 1994

...STRONG THUNDERSTORMS CONTINUE TO DEVELOP ACROSS CENTRAL ILLINOIS...

AT 505 PM CDT...RADAR INDICATED AN AREA OF STRONG THUNDERSTORMS
EXTENDING FROM LEXINGTON...IN NORTHERN MCLEAN COUNTY...SOUTHWEST TO
BLOOMINGTON...THEN WEST INTO CARLOCK...IN SOUTHERN WOODFORD COUNTY AND
MACKINAW IN EASTERN TAZEWELL COUNTY. THESE STNORMS MOVING TO THE EAST AT
10 MPH.

HIGH WINDS...FREQUENT LIGHTNING...PERIODS OF HEAVY RAINFALL AND HAIL MAY
ACCOMPANY THESE STORMS.

WATERHOUSE

Nearby

Severe Thunderstorm Warnings in Illinois, 1994Every severe thunderstorm warning in 1994

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.