Alert archive / Illinois / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 43, NWS St. Louis, MO

April 27, 1994Clinton County, Saint Clair County, Illinois

NWS St. Louis, MO issued this severe thunderstorm warning at Apr 27, 1994, 1:12 AM CDT for Clinton County, Saint Clair County, Illinois. It was in force for 48 min.

The area

The counties it named.

The facts

Issued: Apr 27, 1994, 1:12 AM CDT (06:12 UTC)
Expired: Apr 27, 1994, 2:00 AM CDT
In force: 48 min
Issued by: NWS St. Louis, MO
Area: Whole counties

Counties Clinton County, IL, Saint Clair County, IL

The nearest sounding before it

Paducah/Barkley, KY (KPAH), launched 00:00Z, 6.2 hours before the alert went out and 184 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: 2999 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 1036 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 128 m²/s²
0-3 km storm-relative helicity: 139 m²/s²
Significant tornado parameter: 1.8
Supercell composite: 10.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSTL 270615
SVRSTL
ILC027-163-270700-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
112 AM CDT WED APR 27 1994
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  200 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH CENTRAL ILLINOIS
 
   ...CLINTON COUNTY
 
IN SOUTHWEST ILLINOIS
 
   ...ST CLAIR COUNTY
 
AT 110 AM...WEATHER SERVICE RADAR WAS DETECTING A SEVERE THUNDERSTORM
OVER ST. CLAIR COUNTY NEAR BELLEVILLE. THE STORMS WAS MOVING NORTHEAST
AT 35 MPH AND WILL BE EFFECTING THE TOWNS OF TRENTON...GERMANTOWN...AND
CARLYLE IN CLINTON COUNTY ILLINOIS. RESIDENTS IN THIS AREA SHOULD SEEK
SAFE SHELTER IMMEDIATELY.
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.
 
GKS/TRUETT

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

Local storm report, Apr 26, 10:16 PM CDT, 2 hours 56 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA MO
1015 PM CDT TUE APR 27 1994

...PRELIMINARY STORM REPORTS...ALL TIMES LOCAL PM

TIME      COUNTY             REPORT
710       PULASKI        TORRENTIAL RAINS//PEA SIZED HAIL.
730       CAMDEN         WIND GUSTS ESTIMATED 85 MPH//POLICE JEEP LIFTED
                         OFF THE GROUND BY WIND//ROOF DESTROYED ON A NEW
                         2 STORY BLDG//AIRCRAFT HANGAR DESTROYED//HOUSE
                         BOAT FLIPPED IN LAKE//LARGE TREES...1 TO 11/2
                         FEET IN DIAMETER DOWN//LARGE BOATS DESTROYED IN
                         HARBOUR//ANOTHER REPORT OF 65 MPH WINDS.
737       MORGAN         60 PLUS MPH WINDS//TORRENTIAL RAINS//LARGE TREES
                         DOWN.
740       CAMDEN         ANTENNA TORN OFF COURT HOUSE//LARGE TREES DOWN
                         AT HIWAYS591/589//LARGE TREES DOWN JCT.99//3
                         MILES WEST OF CAMDENTON AT HH BLDG DESTROYED//
                         POWER OUT AT GRENVIEW AND JCT 5/17.
753        MILLER           TRAILER DESTROYED NEAR BRUMLEY//TREES
                              AND PHONE LINES DOWN//POWER OUT THERE.
805        GASCONADE        TREES DOWN//LARGE HAIL TO 11/2 INCH SOUTH
                            OF OWENSVILLE.
815        BENTON           3/4 INCH HAIL AND GROWING AROUND WARSAW.
817        COLE             LARGE TREES DOWN AND DAMAGE TO SIGNS AND
                            ROOFS IN JEFFERSON CITY.
820        S. CALLAWAY      TORNADO SIGHTED BY OFF DUTY POLICEMAN
                            MOVING TO NORTHEAST ON CO. ROAD AA.
830        BOONE            50 TO 60 MPH WINDS 11/2 MILES SOUTH OF
                RN DESTROYED//LARGE TREES AND POWER LINES
                            DOWN IN FULTON//WXL-45 NOAA WEA. RADIO OUT
                            OF BUSINESS.
845        MONTGOMERY       LARGE TREES AND POWER LINES DOWN IN
                            MONTGOMERY CITY.

LB/AP/AL

Special weather statement, Apr 26, 11:07 PM CDT, 2 hours 5 minutes before

MOZALL-270800-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1100 PM CDT TUE APR 26 1994

...A NEW TORNADO WATCH HAS BEEN ISSUED FOR MUCH OF SOUTHERN AND
   EAST CENTRAL MISSOURI UNTIL 300 AM...

...THE TORNADO WATCH FOR EAST CENTRAL MISSOURI AND SOUTHWEST
   ILLINOIS CONTINUES IN EFFECT UNTIL MIDNIGHT...

AT 1100 PM...THE NATIONAL WEATHER SERVICE HAS ISSUED A NEW
TORNADO WATCH FOR MUCH OF SOUTHERN AND EAST CENTRAL MISSOURI
IN EFFECT UNTIL 300 AM.  THIS INCLUDES THE CITIES OF CAMDENTON...
FARMINGTON...CAPE GIRARDEAU...JEFFERSON CITY...LEBANON...ROLLA...
ST. CHARLES...ST. LOUIS AND UNION.  TORNADO WATCH NUMBER 131 FOR
EAST CENTRAL MISSOURI AND SOUTHWEST ILLINOIS CONTINUES IN EFFECT
UNTIL MIDNIGHT.  THE ONLY COUNTY IN MISSOURI THIS WATCH INCLUDES IS
LINCOLN COUNTY.

AT 1100 PM...RADAR CONTINUED TO INDICATE THUNDERSTORMS EXTENDING
FROM NEAR VICHY THROUGH THE ST. LOUIS METRO AREA INTO WESTERN
ILLINOIS.

A TORNADO WATCH MEANS THAT CONDITIONS ARE FAVORABLE FOR TORNADOES AND
SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA.  PERSONS IN THESE
AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS
AND LISTEN TO NOAA WEATHER RADIO OR LOCAL MEDIA SOURCxES FOR LATER
STATEMENTS AND POSSIBLE WARNINGS.

GKS

Special weather statement, Apr 27, 12:10 AM CDT, 1 hour 2 minutes before

MOZ052-060>065-072>076-ILZ098>102-270800-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1210 AM CDT WED APR 27 1994

...A TORNADO WATCH IS IN EFFECT FOR PARTS OF SOUTHERN AND EAST CENTRAL
MISSOURI UNTIL 300 AM...
...THE TORNADO WATCH FOR OTHER AREAS OF EAST CENTRAL MISSOURI AND INTO
SOUTHWEST ILLINOIS HAS EXPIRED...

TORNADO WATCH #131 IS NO LONGER IN EFFECT FOR PARTS OF EAST CENTRAL
MISSOURI AND SOUTWEST ILLINOIS.  THE COUNTIES CLOSE TO ST LOUIS THAT
ARE NO LONGER INCLUDED IN A TORNADO WATCH INCLUDE LINCOLN COUNTY IN
MISSOURI AND CALHOUN AND JERSEY COUNTIES IN ILLINOIS.

ALL OTHER COUNTIES AROUND THE ST LOUIS AREA REMAIN IN A TORNADO WATCH
UNTIL 300 AM.  IF STORMS MOVE I.NTO YOUR AREA...REMAIN INDOORS AND
LISTEN FOR POSSIBLE WARNINGS.

SHEA

Special weather statement, Apr 27, 12:49 AM CDT, 23 minutes before

ILZ064-069-066-065-075-100-070-102-101-074-270745-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1247 AM CDT WED APR 27 1994

...THUNDERSTORMS REDEVELOPING OVER SOUTHERN ILLINOIS...

AT 1245 AM...WEATHER SERVICE RADAR WAS INDICATING THUNDERSTORMS WERE
REDEVELOPING OVER SOUTHERN ILLINOIS FROM NEAR ST. LOUIS TO NEAR SALEM.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM.  RESIDENTS IN THIS
AREA SHOULD CONTINUE TO MONITOR NOAA WEATHER RADIO AND LOCAL MEDIA
SOURCES FOR FURTHER STATEMENTS AND POSSIBLE WARNINGS.  IF THREATENING
WEATHER APPROACHES TAKE COVER IN A REINFORCED BUILDING AWAY FROM
WINDOWS.

GKS/TRUETT

Special weather statement, Apr 27, 12:57 AM CDT, 15 minutes before

MOZ024-025-032-033-039>042-045>051-055>059-068>070-270700-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA MO
1255 AM CDT WED APR 27 1994

...A TORNADO WATCH IS IN EFFECT FOR THE SOUTHEAST HALF OF CENTRAL
MISSOURI UNTIL 300 AM CDT...

AT 150 AM STRONG THUNDERSTORMS IN CENTRAL MISSOURI EXTENDED FROM 40
MILES SOUTHEAST OF JEFFERSON CITY NEAR OWENSVILLE TO 50 MILES SOUTH
OF JEFFERSON CITY NEAR WAYNESVILLE.  THE BAND OF THUNDERSTORMS TRAILED
SOUTHWEST TO JUST NORTH OF SPRINGFIELD.  THE THUNDERSTORMS WERE MOVING
NORTHEAST AT 45 MPH.  OWENSVILLE...VIENNA...AND WAYNESVILLE WILL
CONTINUE TO BE AFFECTED BY THESE THUNDERSTORMS THROUGH 2 AM.

BE ALERT FOR BRIEF PERIODS OF HEAVY RAIN ACCOMPANIED BY GUSTY WINDS
AND SMALL HAIL.  FLOODING OF URBAN AREAS AND BRIDGES ON COUNTY ROADS
IS POSSIBLE.  DRIVE SLOWLY THROUGH LOW SPOTS AS FLOODED ROADS ARE
DIFFICULT TO SEE AT NIGHT.
        KENNEDY

Local storm report, Apr 27, 1:04 AM CDT, 8 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
104 AM CDT WED APR 27 1994

...PRELIMINARY STORM REPORTS FROM TUESDAY EVENING AND EARLY WEDNESDAY
   MORNING...APRIL 26TH AND 27TH...

TIME(CDT)  COUNTY        REPORT

655 PM     DENT          4 1/2 MILES SOUTH OF SALEM...15 MINUTES OF
           MISSOURI      ONE INCH DIAMETER HAIL...FROM CIVIL DEFENSE
                         DIRECTOR.

710 PM     DENT          GOLF BALL SIZE HAIL AT SALEM.  REPORTED BY
           MISSOURI      COUNTY SHERIFF.

723 PM     DENT          GOLF BALL SIZE HAIL 6 MILES SOUTH OF SALEM.
           MISSOURI      REPORTED BY COUNTY SHERIFF.

725 PM     FRANKLIN      ONE INCH HAIL AND 60 MPH WINDS AT GERALD.
           MISSOURI      REPORTED BY COUNTY SHERIFF.

738 PM     IRON          GOLF BALL SIZE HAIL NEAR VIBURNUM...FROM
           MISSOURI      THE COUNTY SHERIFF.

745 PM     FRANKLIN      GOLF BALL SIZE HAIL 2 MILES SOUTH OF UNION...
           MISSOURI      FROM COUNTY SHERIFF.

755 PM     FRANKLIN      3/4 INCH HAIL AT UNION...FROM PUBLIC.
           MISSOURI

800 PM     ST CHARLES    LARGE TREES UPROOTED AT LAKE ST LOUIS....FROM
           MISSOURI      HAM RADIO.

820 PM     PHELPS        TRACTOR TRAILER OVERTUNED ON INTERSTATE 44
           MISSOURI      DUE TO HIGH WINDS NEAR ST JAMES.  RELAYED BY HAM
                         RADIO.

822 PM     PHELPS        WIND DAMAGE AT ROLLA...UNCONFIRMED TORNADO.
           MISSOURI      RELAYED FROM HAM RADIO.

825 PM     FRANKLIN      60 MPH WINDS AT NEW HAVEN...FROM COUNTY
           MISSOURI      SHERIFF.

825 PM     ST LOUIS      DIME SIZE HAIL IN GROVER...FROM NWS SPOTTER.
           MISSOURI

825 PM     ST LOUIS      ONE INCH HAIL AT ELLISVILLE.  REPORTED BY THE
           MISSOURI      PUBLIC.

830 PM     ST LOUIS      3 INCH DIAMETER HAIL IN CHESTERFIELD...AUTO
           MISSOURI      DAMAGE...REPORTED FROM NWS SPOTTER.

831 PM     ST LOUIS      ONE INCH HAIL IN WEST COUNTY...FROM ST LOUIS
           MISSOURI      EOC.

831 PM     ST LOUIS      ONE INCH HAIL REPORTED NEAR SPIRIT OF ST LOUIS
           MISSOURI      AIRPORT...FROM NWS SPOTTER.

831 PM     WARREN        ONE INCH HAIL AND WIND DAMAGE IN WRIGHT CITY.
           MISSOURI      RELAYED BY HAM RADIO.

833 PM     JERSEY        WIND DAMAGE IN JERSEYVILLE...FROM THE COUNTY
           ILLINOIS      SHERIFF.

833 PM     JERSEY        GOLF BALL SIZE HAIL...WINDS IN EXCESS OF 60
           ILLINOIS      MPH AND EXTENSIVE WIND DAMAGE IN OTTERVILLE.
                         REPORTED BY THE COUNTY SHERIFF.

836 PM     WARREN        ONE INCH HAIL AND STRONG WINDS 2 MILES EAST OF
           MISSOURI      WRIGHT CITY...RELAYED BY HAM RADIO.

836 PM     ST LOUIS      ONE INCH DIAMTER HAIL REPORTED AT CHESTERFIELD FROM
           MISSOURI      NWS SPOTTER.

840 PM     ST CHARLES    2 INCH DIAMTER HAIL AT O'FALLON...FROM THE PUBLIC.
           MISSOURI

840 PM     ST LOUIS      3/4 INCH DIAMTER HAIL REPORTED IN BRIDGETON...FROM
           MISSOURI      NWS SPOTTER.

840 PM     CRAWFORD      TREES UNROOTED IN CUBA...FROM NWS SPOTTER.
           MISSOURI

842 PM     ST LOUIS      1 INCH DIAMTER HAIL AT BRIDGETON.  REPORTED BY
           MISSOURI      MISSOURI HIGHWAY PATROL...TROOP C.

858 PM     ST LOUIS      3/4 INCH DIAMETER HAIL AT FLORISSANT.  REPORTED
           MISSOURI      BY THE PUBLIC.

900 PM     CRAWFORD      TORNADO 3 MILES SOUTH OF CUBA.  REPORTED BY
           MISSOURI      MISSOURI HIGHWAY PATROL...TROOP I.

906 PM     CRAWFORD      POWER LINES DOWN IN CUBA...FROM PUBLIC.
           MISSOURI

910 PM     FRANKLIN      50 TO 60 MPH WINDS IN ST CLAIR...REPORTED BY
           MISSOURI      NWS SPOTTER.

912 PM     JEFFERSON     GOLF BALL SIZE HAIL SOUTHWEST OF FESTUS.
           MISSOURI      REPORTED BY COUNTY EOC.

915 PM     CRAWFORD      NUMEROUS REPORTS OF TREES AND POWER LINES
           MISSOURI      DOWN NEAR CUBA.  REPORTED BY COUNTY SHERIFF.

915-920 PM JEFFERSON     GOLF BALL SIZE HAIL NEAR FESTUS...FROM THE
           MISSOURI      PUBLIC.

918 PM     PIKE          TELEPHONE POLES DOWN NEAR MIDDLETOWN.  RELAYED
           MISSOURI      FROM HAM RADIO.

923 PM     LINCOLN       50 TO 60 MPH WINDS AT ELSBERRY...FROM HAM RADIO.
           MISSOURI

935 PM     JEFFERSON     POSSIBLE TORNADO NEAR CRYSTAL CITY.  REPORTED BY
           MISSOURI      HAM RADIO.

957 PM     ST CLAIR      QUARTER SIZE HAIL AT FREEBURG...FROM HAM RADIO.
           ILLINOIS

1000 PM    ST CLAIR      UNCONFIRMED TORNADO 10 MILES SOUTH OF BELLEVILLE.
           ILLINOIS      REPORTED BY HAM RADIO RELAY.

1003 PM    ST CLAIR      DIME SIZE HAIL AT MASCOUTAH...FROM HAM RADIO.
           ILLINOIS

1010 PM    ST CLAIR      60 TO 70 MPH WINDS REPORTED AT CENTERVILLE AND
           ILLINOIS      BELLEVILLE.  REPORTED BY HAM RADIO.

1013 PM    ST CLAIR      UNCONFIRMED TORNADO NEAR NEW BADEN...FROM COUNTY
           ILLINOIS      EOC.

1015 PM    ST CLAIR      TREES DOWN NEAR DUPO.  REPORTED BY COUNTY SHERIFF.
           ILLINOIS

1030 PM    CLINTON       TREES DOWN IN TRENTON...FROM THE COUNTY SHERIFF.
           ILLINOIS

1030 PM    BOND          QUARTER SIZE HAIL AT GREENVILLE...FROM HAM RADIO.
           ILLINOIS

1030 PM    RANDOLPH      50 TO 60 MPH WINDS AT PRAIRE DU ROCHER.  REPORTED
           ILLINOIS      FROM COUNTY EOC.

1038 PM    BOND          GOLF BALL SIZE AT MULBERRY GROVE.  REPORTED BY
           ILLINOIS      HAM RADIO.

1050 PM    WASHINGTON    TREES DOWN 4 MILES SOUTH OF LIVELY GROVE.
           ILLINOIS      REPORTED BY COUNTY SHERIFF.

1055 PM    FAYETTE       ONE INCH HAIL 2 MILES WEST OF VANDALIA...FROM
           ILLINOIS      ILLINOIS STATE POLICE.

1110-1120  MARION        NUMEROUS TREES DOWN AND DAMAGE TO HOUSE TRAILERS
PM         ILLINOIS      AT PAKOTA AND KINMUNDY...FROM COUNTY SHERIFF.

1220 AM    FRANKLIN      NICKEL SIZE HAIL AT LONEDELL...FROM COUNTY SHERIFF.
           MISSOURI

1225 AM    JEFFERSON     GOLF BALL SIZE AND WIND GUSTS UP TO 60 MPH AT
           MISSOURI      CEDAR HILL...COUNTY EOC.

1227 AM    JEFFERSON     GOLF BALL SIZE HAIL AT SHADY VALLEY...FROM
           MISSOURI      COUNTY SHERIFF.

1233 AM    ST LOUIS      1 INCH HAIL AT FENTON...FROM COUNTY EOC.
           MISSOURI

1233 AM    JEFFERSON     1 INCH HAIL AT ARNOLD...FROM COUNTY EOC.
           MISSOURI

SMALL/GLASS

The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 26, 8:07 PM CDT	Severe Thunderstorm Warning	LSX	Calhoun, Jersey	68 min
Apr 26, 8:55 PM CDT	Severe Thunderstorm Warning	LSX	Madison	65 min
Apr 26, 9:12 PM CDT	Tornado Warning	LSX	Macoupin, Montgomery	33 min
Apr 26, 9:27 PM CDT	Tornado Warning	LSX	Monroe	48 min
Apr 26, 9:43 PM CDT	Severe Thunderstorm Warning	LSX	Saint Clair	47 min
Apr 26, 9:54 PM CDT	Severe Thunderstorm Warning	LSX	Randolph	66 min
Apr 26, 10:14 PM CDT	Severe Thunderstorm Warning	LSX	Clinton, Washington	61 min
Apr 26, 10:30 PM CDT	Severe Thunderstorm Warning	LSX	Bond	45 min
Apr 26, 10:39 PM CDT	Severe Thunderstorm Warning	LSX	Fayette	51 min
Apr 26, 10:47 PM CDT	Severe Thunderstorm Warning	LSX	Jefferson, Marion	58 min
Apr 27, 12:33 AM CDT	Severe Thunderstorm Warning	LSX	Monroe, Saint Clair	42 min
Apr 27, 2:40 AM CDT	Severe Thunderstorm Warning	LSX	Randolph	50 min
Apr 27, 3:02 AM CDT	Severe Thunderstorm Warning	LSX	Perry	43 min
Apr 27, 3:20 AM CDT	Tornado Warning	LSX	Perry	27 min
Apr 27, 6:58 PM CDT	Severe Thunderstorm Warning	LSX	Madison, Saint Clair	47 min

Nearby

Severe Thunderstorm Warnings in Illinois, 1994 Every 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.