Alert archive / Missouri / Tornado Warnings in 1993

Tornado Warning 2, NWS Kansas City, MO

April 12, 1993Pettis County, Missouri

NWS Kansas City, MO issued this tornado warning at Apr 12, 1993, 4:27 PM CDT for Pettis County, Missouri. It was in force for 33 min.

The area

The counties it named.

The facts

Issued
Apr 12, 1993, 4:27 PM CDT (21:27 UTC)
Expired
Apr 12, 1993, 5:00 PM CDT
In force
33 min
Issued by
NWS Kansas City, MO
Area
Whole counties

County Pettis County, MO

The nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 9.5 hours before the alert went out and 206 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, Topeka, KS at 12:00Z on 1993-04-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Topeka, KS at 12:00Z on 1993-04-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 213 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1394 m above ground
0-6 km bulk shear
74 kt
0-1 km storm-relative helicity
213 m²/s²
0-3 km storm-relative helicity
366 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 KCOU 122134 RRA
TORCOU
MOC159-122200-

BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE COLUMBIA MO
427 PM CDT MON APR 12 1993

THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  500 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN CENTRAL MISSOURI

   ...SOUTHERN PETTIS COUNTY...INCLUDING SEDALIA

AT 430 PM RADAR INDICATED A POSSIBLE TORNADO 20 MILES SOUTHWEST OF
SEDALIA...JUST SOUTH OF WHITEMAN AFB. THIS STORM IS MOVING TO THE EAST
AT 35 MPH AND WILL PASS NEAR SEDALIA BY 450 PM.


IF YOU LIVE IN A MOBILE HOME...GET OUT AND TAKE COVER IN A STRONG
BUILDING...OR GET IN A DITCH OR LOW SPOT AND COVER YOUR HEAD. IF YOU
ARE IN AN APARTMENT...OFFICE OR SCHOOL...TAKE COVER IN THE BASEMENT
OR A SMALL INSIDE ROOM ON THE LOWEST FLOOR. STAY AWAY FROM WINDOWS.


KENNEDY/STANLEY

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, Apr 12, 12:57 PM CDT, 3 hours 30 minutes before
MOZ008-009-KSZ016-121900-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY MISSOURI
1255 PM CST MON APR 12 1993

...STRONG THUNDERSTORMS MOVING INTO KANSAS CITY METRO AREA...

AT 1250 PM...TWO LINES OF STRONG THUNDERSTORMS WERE OCCURRING OVER
NORTHEAST KANSAS.  THE FIRST LINE OF STORMS EXTENDED FROM JUST NORTH OF
OLATHE TO JUST NORTH OF PEOLA...IN JOHNSON AND MIAMI COUNTIES.  THESE
STRORMS HAVE PRODUCED PEA TO MARBLE SIZE HAIL IN GARDNER...WHICH IS ABOUT
10 MILES SOUTHWEST OF OLATHE.

THE OTHER LINE OF THUNDERSTORMS EXTENDED EXTREME WESTERN JOHNSON COUNTY
...TO THE SOUTHEAST OF LAWRENCE...TO JUST WEST OF TOPEKA.

THE THUNDERSTORMS WERE MOVING NORTHEAST AT 40 MILES AN HOUR...NAND THEY
WILL MOVE THROUGH THE SOUTHWEST AND WEST PARTS OF THE METRO AREA BETWEEN
100 AND 230 PM.
.
HAIL OF UP TO MARBLE SIZE...GUSTY WINDS...AND VERY HEAVY RAIN ARE
LIKELY WITH THESE STORMS.

DESTRI
Special weather statement, Apr 12, 1:55 PM CDT, 2 hours 32 minutes before
MOZ008-009-KSZ016-121900-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY MISSOURI
1255 PM CST MON APR 12 1993

...STRONG THUNDERSTORMS MOVING INTO KANSAS CITY METRO AREA...

AT 1250 PM...TWO LINES OF STRONG THUNDERSTORMS WERE OCCURRING OVER
NORTHEAST KANSAS.  THE FIRST LINE OF STORMS EXTENDED FROM JUST NORTH OF
OLATHE TO JUST NORTH OF PEOLA...IN JOHNSON AND MIAMI COUNTIES.  THESE
STRORMS HAVE PRODUCED PEA TO MARBLE SIZE HAIL IN GARDNER...WHICH IS ABOUT
10 MILES SOUTHWEST OF OLATHE.

THE OTHER LINE OF THUNDERSTORMS EXTENDED EXTREME WESTERN JOHNSON COUNTY
...TO THE SOUTHEAST OF LAWRENCE...TO JUST WEST OF TOPEKA.

THE THUNDERSTORMS WERE MOVING NORTHEAST AT 40 MILES AN HOUR...AND THEY
WILL MOVE THROUGH THE SOUTHWEST AND WEST PARTS OF THE METRO AREA BETWEEN
100 AND 230 PM.
.
HAIL OF UP TO MARBLE SIZE...GUSTY WINDS...AND VERY HEAVY RAIN ARE
LIKELY WITH THESE STORMS.

DESTRI
Special weather statement, Apr 12, 3:01 PM CDT, 1 hour 26 minutes before
MOZ008-009-KSZ016-122045-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY MISSOURI
300 PM CST MON APR 12 1993

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR THE KANSAS CITY
AREA UNTIL 800 PM...
...STRONG THUNDERSTORMS MOVING INTO KANSAS CITY METRO AREA...

AT 255 PM...STRONG THUNDERSTORMS WERE OCCURRING OVER NORTHEAST KANSAS
AND WERE MOVING EAST-NORTHEAST AT 40 MILES AN HOUR.  SOME VERY STRONG
STORMS WERE NEAR LAWRENCE AND DE SOTO KANSAS AND WERE PRODUCING PEA TO
MARBAL SIZED HAIL WITH STRONG GUSTY WIND.  AS THE STORMS CONTINUE TO
TRACK TO THE EAST-NORTHEAST THEY WILL BE ENTERING THE WESTERN PARTS OF
THE KANSAS CITY METRO AREA BETWEEN 300 AND 315 PM...MAINLY AFFECTING THE
PARTS OF THE METRO AREA NORTH OF THE KANSAS AND MISSOURI RIVERS.  SOME
COMMUNITIES IN THE PATH OF THESE STORMS ARE TONGANOXIE...LEAVENWORTH...
PARKVILLE AND RIVERSIDE.

THESE THUNDERSTORMS MAY DEVELOP TO SEVERE LEVELS WITH LARGE HAIL...STRONG
DAMAdGING WINDS AND VERY HEAVY RAIN.  STAY ALERT FOR RAPIDLY DEVELOPING
STORMS AND LITEN FOR FURTHER UPDATES.

HIBBERT
Special weather statement, Apr 12, 4:00 PM CDT, 27 minutes before
MOZ008-009-KSZ016-122045-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY MISSOURI
300 PM CST MON APR 12 1993

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR THE KANSAS CITY
AREA UNTIL 800 PM...
...STRONG THUNDERSTORMS MOVING INTO KANSAS CITY METRO AREA...

AT 255 PM...STRONG THUNDERSTORMS WERE OCCURRING OVER NORTHEAST KANSAS
AND WERE MOVING EAST-NORTHEAST AT 40 MILES AN HOUR.  SOME VERY STRONG
STORMS WERE NEAR LAWRENCE AND DE SOTO KANSAS AND WERE PRODUCING PEA TO
MARBAL SIZED HAIL WITH STRONG GUSTY WIND.  AS THE STORMS CONTINUE TO
TRACK TO THE EAST-NORTHEAST THEY WILL BE ENTERING THE WESTERN PARTS OF
THE KANSAS CITY METRO AREA BETWEEN 300 AND 315 PM...MAINLY AFFECTING THE
PARTS OF THE METRO AREA NORTH OF THE KANSAS AND MISSOURI RIVERS.  SOME
COMMUNITIES IN THE PATH OF THESE STORMS ARE TONGANOXIE...LEAVENWORTH...
PARKVILLE AND RIVERSIDE.

THESE THUNDERSTORMS MAY DEVELOP TO SEVERE LEVELS WITH LARGE HAIL...STRONG
DAMAGING WINDS AND VERY HEAVY RAIN.  STAY ALERT FOR RAPIDLY DEVELOPING
STORMS AND LITEN FOR FURTHER UPDATES.

HIBBERT

The office that day

Everything else NWS Kansas City, MO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 12, 3:39 PM CDTSevere Thunderstorm WarningEAXCass, Henry, Johnson61 min
Apr 12, 4:53 PM CDTSevere Thunderstorm WarningEAXBenton, Pettis37 min

Nearby

Tornado Warnings in Missouri, 1993Every tornado warning in 1993Tornadoes in 1993

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.