Alert archive / Illinois / Tornado Warnings in 1992

Tornado Warning 8, NWS Chicago, IL

September 9, 1992Ford County, Livingston County, Illinois

NWS Chicago, IL issued this tornado warning at Sep 9, 1992, 5:52 PM CDT for Ford County, Livingston County, Illinois. It was in force for 53 min.

The area

The counties it named.

The facts

Issued
Sep 9, 1992, 5:52 PM CDT (22:52 UTC)
Expired
Sep 9, 1992, 6:45 PM CDT
In force
53 min
Issued by
NWS Chicago, IL
Area
Whole counties

Counties Ford County, IL, Livingston County, IL

The nearest sounding before it

Dayton/James M C, OH (KDAY), launched 12:00Z, 10.9 hours before the alert went out and 367 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, Dayton/James M C, OH at 12:00Z on 1992-09-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 386 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, Dayton/James M C, OH at 12:00Z on 1992-09-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 119 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
386 J/kg
Mixed-layer CIN
-54 J/kg
Mixed-layer LCL
544 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
119 m²/s²
0-3 km storm-relative helicity
120 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.7

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KCHI 092255
TORCHI
ILC053-105-092345-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CHICAGO IL
552 PM CDT WED SEP 9 1992
 
THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  645 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN EAST CENTRAL ILLINOIS
 
   ...FORD COUNTY
 
IN NORTHEAST ILLINOIS
 
   ...SOUTHERN LIVINGSTON COUNTY
 
AT 5 50 PM CDT A TORNADO WAS REPORTED ON THE GROUND AT GRIDLEY
ILLINOIS...OR 15 MILES SOUTHWEST OF THE CITY OF PONTIAC. THE STORM IS
MOVING TO THE EAST AT 35 MPH. COMMUNITIES IN THE PATH OF THIS TORNADO
INCLUDE FAIRBURY...FORREST...AND PIPER CITY.
 
 
 
THIS IS A DANGEROUS STORM SITUATION.  ACT QUICKLY.  IF YOU ARE
IN THE PATH OF THIS TORNADO MOVE TO A SHELTER BELOW GROUND IF
AVAILABLE.  OTHERWISE...GO TO A SMALL INTERIOR ROOM ON THE LOWEST
FLOOR POSSIBLE.  GET AWAY FROM WINDOWS.  ABANDON CARS AND MOBILE HOME
FOR A REINFORCED BUILDING OR GET INTO A DITCH OR CULVERT.
 
ATTN ISP 6...21
 
MERZLOCK

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, Sep 9, 4:34 PM CDT, 1 hour 18 minutes before
ILZ001-002-092215-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ROCKFORD IL
430 PM CDT WED SEP 9 1992

...TORNADO WATCH FOR DE KALB/LEE/WHITESIDE AND LASALLE COUNTIES OF
NORTHERN ILLINOIS TIL 9 PM CDT...

THIS AFTERNOON AT 430 CDT NUMEROUS THUNDERSTORMS CONTINUED TO THE SOUTH
AND EAST OF A LINE EXTENDING FROM EAST OF ROCKFORD DOWN ILLINOIS
HIGHWAY 2 TO AROUND OREGON AND ON SOUTHWEST TO MOLINE. THEY WERE MOVING
EAST AT 30 TO 35 MILES AN HOUR.

BEHIND THIS LINE...RAINFALL WAS VERY LIGHT AND SOME CLEARING WAS TAKING
PLACE.

THE HEAVIEST THUNERSTORMS WERE LOCATED IN SOUTHEAST LEE COUNTY AND FAR
SOUTHWEST DE KALB COUNTY. THEY WERE PRODUCING VERY HEAVY DOWNPOURS THAT
WILL PRODUCE PERIODS OF LOCALIZED FLOODING OF STREETS AND SMALL
STREAMS. GUSTY WINDS TO ABOUT 35 OR 40 MPH AND CLOUD TO GROUND
LIGHTNING STRIKES WILL ALSO OCCUR.

PERSONS IN THE TORNADO WATCH AREA...LEE/DE KALB/WHITESIDE/AND
LASALLE SHOULD CONTINUE TO MONITOR WEATHEXR RADIO OR YOUR LOCAL
T. V. AND RADIO STATIONS FOR FURTHER STATEMENTS OR POSSIBLE WARNINGS.

ATTN ISP 1..2..16
FIELDS
Special weather statement, Sep 9, 5:13 PM CDT, 39 minutes before
ILZ001-002-092330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ROCKFORD IL
515 PM CDT WED SEP 9 1992

...TORNADO WATCH FOR DE KALB/LEE/WHITESIDE AND LASALLE COUNTIES OF
NORTHERN ILLINOIS TIL 9 PM CDT...

THIS AFTERNOON AT 515 CDT NUMEROUS THUNDERSTORMS CONTINUED TO THE SOUTH
AND EAST OF A LINE EXTENDING FROM ROCKFORD TO MOLINE. THESE STORMS WERE
MOVING TO THE EAST AROUND 35 MPH.

SOME CLEARING WAS TAKING PLACE BEHIND THIS LINE.

THE HEAVIEST THUNERSTORMS WERE LOCATED IN SOUTHERN DEKLAB COUNTY...SOUTH
OF THE CITY OF DEKALB. TEY WERE PRODUCING VERY HEAVY DOWNPOURS THAT CAN
PRODUCE PERIODS OF LOCALIZED FLOODING OF STREETS AND SMALL STREAMS.
GUSTY WINDS TO ABOUT 35 OR 40 MPH AND CLOUD TO GROUND LIGHTNING WILL
OCCUR.
PERSONS IN THE TORNADO WATCH AREA...LEE/DE KALB/WHITESIDE/AND
LASALLE SHOULD CONTINUE TO MONITOR WEATHER RADIO OR YOUR LOCAL
T. V. AND RADIO STATIONS FOR FURTHER STATEMENTS OR POSSIBLE WARNINGS.

ATTN ISP 1..2..16
PETROVICH
Special weather statement, Sep 9, 5:39 PM CDT, 13 minutes before
ILZ003-005-008-INZ001-092345-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHICAGO IL
538 PM CDT WED SEP 9 1992

...URBAN AND SMALL STREAM FLOOD ADVISORY FOR NORTHEAST ILLINOIS AND
   NORTHWEST INDIANA UNTIL 9 PM CDT...

...FLASH FLOOD WARNING IN EFFECT UNTIL 915 PM CDT FOR SOUTHERN COOK...
   AND WILL COUNTIES...AND LAKE COUNTY INDIANA...

AT 5 30 PM...NATIONAL WEATHER SERVICE RADAR SHOWED A LARGE AREA OF
THUNDERSTORMS PRODUCING VERY HEAVY RAINS...GUSTY WINDS AND FREQUENT LIGHTNING
FROM THE SOUTH SUBURBS OF CHICAGO...TO JOLIET...INTO LASALLE COUNTY. GENERAL
MOVEMENT WAS EAST AT 35 MILES AN HOUR...WITH THE LINE SLOWLY SAGGING SOUTHWARD
DURING THE LAST COUPLE OF HOURS.

HEAVY RAINS WILL CONTINUE TO PROMOTE AND AGGREVATE URBAN AND SMALL STREAM
FLOODING ACROSS THE AREA. WILL COUNTY ESDA REPORTED THAT ROUTE 59 WAS
CLOSED IN PLAINFIELD DUE TO HIGH WATER OVER THE ROADWAY. ALSO...I-80 WAS
FLOODED AT MEADOW STREET IN JOLIET. BASEMENT FLOODING WAS REPORTED AT
SOME OF THE BUILDINGS ON THE LEWIS UNIVERSITY CAMPUS IN ROMEOVILLE.

SOME RAINFALL REPORTS FROM THE COOPERATIVE OBSERVER NETWORK THROUGH 5 PM
INCLUDE: 3.07 INCHES AT DARIEN... 3.14 INCHES AT ORLAND PARK... 3.54 INCHES
AT THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN ROMEOVILLE...WITH OVER
FOUR INCHES IN THE JOLIET AREA.

PERSONS ALONG SMALL CREEKS AND STREAMS SHOULD BE ON THE LOOKOUT FOR RAPIDLY
RISING WATERS AND BE PREPARED TO TAKE MEASURES TO PROTECT PROPERTY.
MOTORISTS SHOULD BE AWARE OF THE POSSIBLITY OF FLOODED ROADWAYS AND
UNDERPASSES.

REMEMBER...A TORNADO WATCH IS ALSO IN EFFECT FOR MOST OF NORTHEAST
ILLINOIS AND METRO CHICAGO...EXCEPT MCHENRY AND LAKE COUNTY ILLINOIS AND
LAKE AND PORTER COUNTIESd OF NORTHWEST INDIANA. LISTEN TO NOAA WEATHER RADIO
AND LOCAL T.V. OR RADIO STATIONS FOR LATER STATEMENTS OR WARNINGS.

DARMOFAL
Special weather statement, Sep 9, 5:45 PM CDT, 7 minutes before
ILZ003-005-008-INZ001-092345-

SPECIAL WEATHER STATEMENT ...CORRECTED LAST PARAGRAPH...
NATIONAL WEATHER SERVICE CHICAGO IL
538 PM CDT WED SEP 9 1992

...URBAN AND SMALL STREAM FLOOD ADVISORY FOR NORTHEAST ILLINOIS AND
   NORTHWEST INDIANA UNTIL 9 PM CDT...

...FLASH FLOOD WARNING IN EFFECT UNTIL 915 PM CDT FOR SOUTHERN COOK...
   AND WILL COUNTIES...AND LAKE COUNTY INDIANA...

AT 5 30 PM...NATIONAL WEATHER SERVICE RADAR SHOWED A LARGE AREA OF
THUNDERSTORMS PRODUCING VERY HEAVY RAINS...GUSTY WINDS AND FREQUENT LIGHTNING
FROM THE SOUTH SUBURBS OF CHICAGO...TO JOLIET...INTO LASALLE COUNTY. GENERAL
MOVEMENT WAS EAST AT 35 MILES AN HOUR...WITH THE LINE SLOWLY SAGGING SOUTHWARD
DURING THE LAST COUPLE OF HOURS.

HEAVY RAINS WILL CONTINUE TO PROMOTE AND AGGREVATE URBAN AND SMALL STREAM
FLOODING ACROSS THE AREA. WILL COUNTY ESDA REPORTED THAT ROUTE 59 WAS
CLOSED IN PLAINFIELD DUE TO HIGH WATER OVER THE ROADWAY. ALSO...I-80 WAS
FLOODED AT MEADOW STREET IN JOLIET. BASEMENT FLOODING WAS REPORTED AT
SOME OF THE BUILDINGS ON THE LEWIS UNIVERSITY CAMPUS IN ROMEOVILLE.

SOME RAINFALL REPORTS FROM THE COOPERATIVE OBSERVER NETWORK THROUGH 5 PM
INCLUDE: 3.07 INCHES AT DARIEN... 3.14 INCHES AT ORLAND PARK... 3.54 INCHES
AT THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN ROMEOVILLE...WITH OVER
FOUR INCHES IN THE JOLIET AREA.

PERSONS ALONG SMALL CREEKS AND STREAMS SHOULD BE ON THE LOOKOUT FOR RAPIDLY
RISING WATERS AND BE PREPARED TO TAKE MEASURES TO PROTECT PROPERTY.
MOTORISTS SHOULD BE AWARE OF THE POSSIBLITY OF FLOODED ROADWAYS AND
UNDERPASSES.

REMEMBER...A TORNADO WATCH IS ALSO IN EFFECT FOR MOST OF NORTHEAST ILLINOIS
AND METRO CHICAGO UNTIL 9 PM...EXCEPT FOR MCHENRY AND LAKE COUNTY ILLINOIS
AND LAKE AND PORTER COUNTIES OF NORTHWEST INDIANA. LISTEN TO NOAA WEATHER
RADIO AND LOCAL T.V. OR RADIO STATIONS FOR LATER STATEMENTS OR WARNINGS.

DARMOFAL
Special weather statement, Sep 9, 5:50 PM CDT, 2 minutes before
ILZ001-002-100000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ROCKFORD IL
550 PM CDT WED SEP 9 1992

...TORNADO WATCH FOR DE KALB/LEE/WHITESIDE AND LASALLE COUNTIES OF
NORTHERN ILLINOIS HAS BEEN CANCELLED...

THE TORNADO WATCH FOR PORTIONS OF NORTHCENTRAL ILLINOIS HAS BEEN
CANCELLED THIS AFTERNOON...EFFECTIVE AS OF 545 PM CDT.

SHOWERS AND THUNDERSTORMS WERE CONTINUING EAST OF A LINE FROM BEVIDERE
TO ROCHELLE TO WEST OF LASALLE. THESE STORMS CONTINUE MOVING TO THE
EAST AROUND 30 MPH.

ELSEWHERE...SKIES WERE BEGINNING TO CLEAR...WITH TEMPERATURES IN THE
MIDDLE 60S. WINDS WERE SHIFTING TO THE NORTHWEST AROUND 10 MPH.

ATTN ISP 1..2..16
PETROVICH
Special weather statement, Sep 9, 5:51 PM CDT, 1 minute before
ILZ003-005-008-INZ001-100000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHICAGO IL
549 PM CDT WED SEP 9 1992

...THE TORNADO WATCH IS NO LONGER IN EFFECT FOR MOST OF NORTHERN
   ILLINOIS...

THE TORNADO WATCH REMAINS IN EFFECT SOUTH OF A LINE FROM NEAR QUINCY
TO MARSEILLES TO 20 MILES SOUTH OF CHICAGO. IN NORTHEAST ILLINOIS
GRUNDY...WILL...KANKAKEE...LIVINGSTON...FORD AND IROQUOIS COUNTIES
ARE STILL IN THE TORNADO WATCH UNTIL 900 PM. THE CITY OF CHICAGO
IS NO LONGER IN THE WATCH.

AT 545 PM RADAR SHOWED A LINE OF STRONG TO SEVERE THUNDERSTORMS FROM
MARSEILLES TO PEORIA AND SOUTHWEST INTO MISSOURI MOVING EAST. RAIN AND
THUNDERSTORMS...SOME WITH HEAVY RAIN EXTENDED EAST FROM MARSEILLES TO
JOLIET AND GARY INDIANA.

ALLSOPP
FLOODED AT MEADOW STREET IN JOLIET. BASEMENT FLOODING WAS REPORTED AT
SOME OF THE BUILDINGS ON THE LEWIS UNIVERSITY CAMPUS IN ROMEOVILLE.

SOME RAINFALL REPORTS FROM THE COOPERATIVE OBSERVER NETWORK THROUGH 5 PM
INCLUDE: 3.07 INCHES AT DARIEN... 3.14 INCHES AT ORLAND PARK... 3.54 INCHES
AT THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN ROMEOVILLE...WITH OVER
FOUR INCHES IN THE JOLIET AREA.

PERSONS ALONG SMALL CREEKS AND STREAMS SHOULD BE ON THE LOOKOUT FOR RAPIDLY
RISING WATERS AND BE PREPARED TO TAKE MEASURES TO PROTECT PROPERTY.
MOTORISTS SHOULD BE AWARE OF THE POSSIBLITY OF FLOODED ROADWAYS AND
UNDERPASSES.

REMEMBER...A TORNADO WATCH IS ALSO IN EFFECT FOR MOST OF NORTHEAST
ILLINOIS AND METRO CHICAGO...EXCEPT MCHENRY AND LAKE COUNTY ILLINOIS AND
LAKE AND PORTER COUNTIES OF NORTHWEST INDIANA. LISTEN TO NOAA WEATHER RADIO
AND LOCAL T.V. OR RADIO STATIONS FOR LATER STATEMENTS OR WARNINGS.

DARMOFAL

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 9, 5:20 PM CDTFlash Flood WarningLOTCook, Will4 hr
Sep 9, 6:22 PM CDTSevere Thunderstorm WarningLOTIroquois, Kankakee38 min

Nearby

Tornado Warnings in Illinois, 1992Every tornado warning in 1992Tornadoes in 1992

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.