Alert archive / Illinois / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 99, NWS Lincoln, IL

September 9, 1992Mason County, Tazewell County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Sep 9, 1992, 12:45 PM CDT for Mason County, Tazewell County, Illinois. It was in force for 30 min.

The area

The counties it named.

The facts

Issued
Sep 9, 1992, 12:45 PM CDT (17:45 UTC)
Expired
Sep 9, 1992, 1:15 PM CDT
In force
30 min
Issued by
NWS Lincoln, IL
Area
Whole counties

Counties Mason County, IL, Tazewell County, IL

The nearest sounding before it

Paducah/Barkley, KY (KPAH), launched 12:00Z, 5.8 hours before the alert went out and 378 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, Paducah/Barkley, KY at 12:00Z on 1992-09-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1613 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, Paducah/Barkley, KY at 12:00Z on 1992-09-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -14 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
1613 J/kg
Mixed-layer CIN
-48 J/kg
Mixed-layer LCL
830 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
-14 m²/s²
0-3 km storm-relative helicity
27 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 091745
SVRPIA
ILC179-125-091815-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE PEORIA IL
1245 PM CDT WED SEP 9 1992

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 115 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE CENTRAL PART OF ILLINOIS
      TAZEWELL...EASTERN MASON

AT 12:39 PM... RADAR INDICATED A POSSIBLE SEVERE THUNDERSTORM IN
EASTERN MASON COUNTY A FEW MILES WEST OF MASON CITY.  RADAR ALSO
INDICATED POSSIBLE SEVERE THUNDERSTORMS IN TAZEWELL COUNTY NEAR
MANITO.  THIS IS 25 MILES SOUTH OF PEORIA.

THIS STORM SHOULD AFFECT MASON CITY... DELAVAN AND HOPEDALE DURING
THE NEXT 30 MINUTES.

REMEMBER...SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
A TORNADO WITH LITTLE OR NO ADVANCE WARNING SO BE ON THE LOOKOUT.

ATTN ISP 8 AND 9

JACOBS

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, Sep 9, 9:00 AM CDT, 3 hours 45 minutes before
ILZ010-091500-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD IL
900 AM CDT WED SEP 9 1992

...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 11 AM CDT FOR MOST OF
CENTRAL ILLINOIS...

AT 855 AM CDT...RAEAR INDICATED A LARGE AREA OF SHOWERS AND THUNDER/
STORMS OVER CENTRAL ILLINOIS. THE STORMS WERE NORTH!OF A LINE FROM 20
MILES SOUTH OF QUINCY TO SPRINGFIELD TO 20 MILES NORTH OF CHAMPAIGN.
THE STORMS WERE MOVING TO THE EAST AT 45 MILES AN HOUR.

THE STRONGEST STORMS WERE LOCATED 10 MILES SOUTH OF QUINCY.  STRONG
GUSTY WINDS...DANGEROUS LIGHTNING...HAIL AND HEAVY RAINFALL AMOUNTS
ARE POSSIBLE WITH THESE STORMS.

BE ALERT TO THE RAPIDLY CHANGING WEATHER CONDITIONS AND IF THREATENING
WEATHER APPROACHES BE PREPARED TO MOVE TO A PLACE OF SAFETY.

LISTEN TO NOAA WEATHER RADIO FOR FURTHER UPDATES AND POSSIBLE WARNINGS.

BYRD
Special weather statement, Sep 9, 10:00 AM CDT, 2 hours 45 minutes before
ILZ010-091600-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD IL
1000 AM CDT WED SEP 9 1992

...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 11 AM CDT FOR MOST OF
CENTRAL ILLINOIS...

AT 955 AM CDT...RADAR INDICATED A LARGE AREA OF SHOWERS AND THUNDER/
STORMS OVER CENTRAL ILLINOIS. THE STORMS WERE NORTH OF A LINE FROM
QUINCY TO 10 MILES NORTH OF SPRINGFIELD TO BLOOMINGTON.  THE STORMS WERE
MOVING TO THE EAST AT 45 MILES AN HOUR.

STRONG GUSTY WINDS...DANGEROUS LIGHTNING...HAIL AND HEAVY RAINFALL
AMOUNTS ARE POSSIBLE WITH THESE STORMS.

BE ALERT TO THE RAPIDLY CHANGING WEATHER CONDITIONS AND IF THREATENING
WEATHER APPROACHES BE PREPARED TO MOVE TO A PLACE OF SAFETY.

LISTEN TO NOAA WEATHER RADIO FOR FURTHER UPDATES AND POSSIBLE WARNINGS.

BYRD
Special weather statement, Sep 9, 10:16 AM CDT, 2 hours 29 minutes before
ILZ005>007-009-091610-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
1015 AM CDT WED SEP 9 1992

...RAIN AND THUNDERSTORMS CONTINUE IN THE WEST AND CENTRAL ILLINOIS AREA...

AT 1010 AM... RADAR INIDCATED AN AREA OF SHOWERS AND THUNDERSTORMS NORTH
OF A LINE FROM QUINCY TO SPRINGFIELD TO LEROY IN SOUTHEAST MCLEAN COUNTY
...15 SOUTHEAST OF BLOOMINGTON.  THE AREA OF RAIN CONTINUED TO MOVE TO
THE NORTHEAST AT 45 MPH.

STRONG THUNDERSTORMS WERE MOVING ACROSS SOUTHERN HENDERSON COUNTY AND
WESTERN HANCOCK COUNTY. TOWNS IN THE PATH OF THESE STORMS INCLUDE TERRE
HOUTE...CARTHAGE AND WEST POINT. THESE AREAS CAN EXPECT HEAVY RAINS...
GUSTY WINDS AND DANGEROUS LIGHTNING.  THE LINE OF STORMS WILL MOVE INTO
SOUTHERN WARREN COUNTY AND WESTERN MCDONOUGH AND SCHUYLER COUNTIES BY
BEFORE 11 AM.

A SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT FOR ALL OF WEST CENTRAL
ILLINOIS UNTIL 11 AM CDT.

NELSON
Special weather statement, Sep 9, 11:12 AM CDT, 1 hour 33 minutes before
ILZ010-091700-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD IL
1105 AM CDT WED SEP 9 1992

...TORNADO WATCH IN EFFECT UNTIL 4 PM CDT FOR MOST OF CENTRAL AND EAST
CENTRAL ILLINOIS...
...VERY STRONG THUNDERSTORMS CONTINUE OVER WEST CENTRAL ILLINOIS...

AT 1100 AM CDT...RADAR INDICATED AN AREA OF VERY STRONG THUNDERSTORMS
WHICH EXTENDED FROM 45 MILES NORTHEAST OF QUINCY...NEAR MACOMB TO 10
MILES WEST OF QUINCY.  THE STORMS WERE MOVING TO THE EAST NORTHEAST AT
45 MILES AN HOUR AND WILL INTO CASS COUNTY BY NOON.

REMEMBER DAMAGING WINDS...LARGE HAIL...HEAVY RAINFALL AMOUNTS...DANGEROUS
LIGHTNING ARE POSSIBLE WITH THESE STORMS.  ALSO...TORNADOES CAN AND
OCCASIONALLY DO OCCUR WITH LITTLE OR NO WARNING.

BE ALERT TO THE RAPIDLY CHANGING WEATHER CONDITIONS AND IF THREATENING
WEATHER APPROACHES BE PREPARED TO MOVE TO A PLACE OF SAFETY.

LISTEN TO NOAA WEATHER RADIO FOR FURTHER UPDATES AND POSSIBLE WARNINGS.

BYRD
Special weather statement, Sep 9, 12:01 PM CDT, 44 minutes before
ILZ010-091800-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD IL
NOON CDT WED SEP 9 1992

...TORNADO WATCH IN EFFECT UNTIL 4 PM CDT FOR MOST OF CENTRAL AND EAST
CENTRAL ILLINOIS...

AT 1155 AM CDT...RADAR INDICATED A LARGE AREA OF VERY STRONG THUNDER/
STORMS NORTH OF A LINE FROM 30 MILES SOUTH OF QUINCY TO 25 MILES SOUTH
OF PEORIA TO 15 MILES SOUTH OF BLOOMINGTON.  THE STORMS WERE MOVING TO
THE EAST AT 40 MILES AN HOUR AND WILL MOVE THROUGH CASS...MORGAN AND
MENARD COUNTIES OVER THE NEXT HOUR.

THE STRONGEST STORMS EXTENDED FROM 35 MILES NORTHWEST OF SPRINGFIELD...
NEAR HAVANA TO 25 MILES EAST OF QUINCY.  REMEMBER DAMAGING WINDS...LARGE
HAIL...VERY HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING ARE POSSIBLE
WITH THESE STORMS.  ALSO...TORNADOES CAN AND OCCASIONALLY DO OCCUR WITH
LITTLE OR NO WARNING.

BE ALERT TO THE RAPIDLY CHANGING WEATHER CONDITIONS AND BE PREPARED TO
MOVE TO A PLACE OF SAFETY IF THREATENING WEATHER  APPROACHES.

LISTEN TO NOAA WEATHER RADIO FOR FURTHER UPDATES AND POSSIBLE WARNINGS.

BYRD
Special weather statement, Sep 9, 12:29 PM CDT, 16 minutes before
ILZ005>007-009-091825

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
1230 PM CDT WED SEP 9 1992

...TORNADO WATCH CONTINUES UNTIL 4PM...

AT 12:25 PM... RADAR INDICATED A LINE OF STRONG THUNDERSTORMS FROM NORTHERN
MASON COUNTY... 20 MILES SOUTH OF PEORIA... DOWN THROUGH CENTRAL MASON
COUNTY ACROSS MASON CITY.  THUNDERSTORMS WERE MOVING EAST AT 45 MPH.

THERE HAVE BEEN NO REPORTS OF SEVERE WEATHER ASSOCIATED WITH THIS LINE OF
THUNDERSTORMS... BUT THERE IS HEAVY RAIN AND A CHANCE FOR STRONG WINDS AND
SMALL HAIL.

ELSEWHERE... A GENERAL AREA OF RAIN AND THUNDERSTORMS COVERED MUCH OF THE
CENTRAL ILLINOIS AREA WEST OF A LINE FROM BLOOMINGTON TO MEREDOSIA.  THIS
INCLUDED THE PEORxIA AREA.

JACOBS

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 9, 10:38 AM CDTSevere Thunderstorm WarningILXMcDonough, Schuyler52 min
Sep 9, 3:46 PM CDTSevere Thunderstorm WarningILXHancock44 min
Sep 9, 4:13 PM CDTSevere Thunderstorm WarningILXMcDonough, Warren37 min
Sep 9, 5:08 PM CDTSevere Thunderstorm WarningILXFulton, Peoria, Tazewell52 min
Sep 9, 5:41 PM CDTSevere Thunderstorm WarningILXMcLean, Woodford64 min
Sep 9, 5:51 PM CDTSevere Thunderstorm WarningILXCass, Morgan54 min
Sep 9, 5:51 PM CDTSevere Thunderstorm WarningILXMenard54 min
Sep 9, 5:51 PM CDTTornado WarningILXMcLean39 min
Sep 9, 6:30 PM CDTSevere Thunderstorm WarningILXLogan, Sangamon45 min

Nearby

Severe Thunderstorm Warnings in Illinois, 1992Every severe thunderstorm warning 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.