Alert archive / Missouri / Tornado Warnings in 1989

Tornado Warning 5, NWS Kansas City, MO

June 12, 1989Boone County, Callaway County, Missouri

NWS Kansas City, MO issued this tornado warning at Jun 12, 1989, 8:45 PM CDT for Boone County, Callaway County, Missouri. It was in force for 30 min.

The area

The counties it named.

The facts

Issued
Jun 12, 1989, 8:45 PM CDT (01:45 UTC)
Expired
Jun 12, 1989, 9:15 PM CDT
In force
30 min
Issued by
NWS Kansas City, MO
Area
Whole counties

Counties Boone County, MO, Callaway County, MO

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Springfield, MO (KUMN), launched 00:00Z, 1.8 hours before the alert went out and 268 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, Springfield, MO at 00:00Z on 1989-06-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 124 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, Springfield, MO at 00:00Z on 1989-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 106 square meters per square second.19395878Sfc1 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
124 J/kg
Mixed-layer CIN
-121 J/kg
Mixed-layer LCL
963 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
106 m²/s²
0-3 km storm-relative helicity
175 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KCOU 130145
TORCOU
MOC019-027-130215-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING 
NATIONAL WEATHER SERVICE COLUMBIA MO
845 PM CDT MON JUN 12 1989

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 915 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE CENTRAL PART OF MISSOURI
      EASTERN BOONE...CITY OF COLUMBIA...WESTERN CALLAWAY

AT 835 PM CDT A SEVERE WEATHER SPOTTER REPORTED A FUNNEL CLOUD
ABOUT 6 MILES NORTH-NORTHEAST OF COLUMBIA.  RADAR SHOWED
THUNDERSTORMS WITH VERY HEAVY SHOWERS AND POSSIBLY HAIL IN A
NARROW BAND FROM 10 MILES NORTHWEST OF COLUMBIA TO ABOUT 15 MILES
NORTHEAST OF COLUMBIA.  THESE THUNDERSTORMS WERE MOVING TO THE
SOUTHEAST AT 30 MILES AN HOUR.

IF YOU ARE IN THE PATH OF THIS TORNADO...TAKE COVER IMMEDIATELY...
GO TO YOUR BASEMENT OR AN INTERIOR ROOM SUCH AS A CLOSET OR BATHROOM
ON THE LOWEST FLOOR.  GET UNDER SOMETHING STURDY. AVOID WINDOWS AND
PROTECT YOURSELF FROM FLYING GLASS AND DEBRIS.

IF YOU ARE CAUGHT OUTSIDE IN THE PATH OF THIS TORNADO...FIND SHELTER
IN THE LOWEST FLOOR OF A NEARBY REINFORCED BUILDING. ABANDON CARS
AND MOBILE HOMES FOR SAFE SHELTER.  AS A LAST RESORT...TAKE SHELTmER
IN A CULVERT...DITCH...OR LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

 LB/GV

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, Jun 12, 6:42 PM CDT, 2 hours 3 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE KANSAS CITY INTERNATIONAL AIRPORT MO
635 PM CDT MON JUN 12 1989

AT 630 PM...SCATTERED SHOWERS AND THUNDERSTORMS...A FEW WITH HAIL...
STRONG GUSTY WINDS AND VERY HEAVY RAIN...EXTENDED FROM WESTCENTRAL
TO NORTHEAST MISSOURI.

ONE HALF INCH HAIL WAS REPORTED IN WESTERN LAFAYETTE COUNTY...ABOUT
25 MILES EAST OF KANSAS CITY AT 625 PM.  OTHER STORNG STORMS WERE
SCATTERED TO THE SOUTH OF KIRKSVILLE IN NORTHEAST MISSOURI.

STORMS WERE MOVING EAST...SOUTHEAST AT 25 MPH.

Nearby

Tornado Warnings in Missouri, 1989Every tornado warning in 1989Tornadoes in 1989

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.