Alert archive / Missouri / Tornado Warnings in 1991

Tornado Warning 7, NWS Kansas City, MO

June 15, 1991Callaway County, Missouri

NWS Kansas City, MO issued this tornado warning at Jun 15, 1991, 6:40 PM CDT for Callaway County, Missouri. It was in force for 35 min.

The area

The counties it named.

The facts

Issued
Jun 15, 1991, 6:40 PM CDT (23:40 UTC)
Expired
Jun 15, 1991, 7:15 PM CDT
In force
35 min
Issued by
NWS Kansas City, MO
Area
Whole counties

County Callaway County, MO

The nearest sounding before it

Springfield, MO (KUMN), launched 12:00Z, 11.7 hours before the alert went out and 271 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 12:00Z on 1991-06-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1766 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 12:00Z on 1991-06-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -8 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
1766 J/kg
Mixed-layer CIN
-56 J/kg
Mixed-layer LCL
851 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
-8 m²/s²
0-3 km storm-relative helicity
70 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 152341
TORCOU
MOC027-160015-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE COLUMBIA MO
640 PM CDT SAT JUN 15 1991
 
THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  715 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS......
 
IN CENTRAL MISSOURI
 
   ...SOUTHERN CALLAWAY COUNTY
 
AT 635PM...RADAR INDICATED A POSSIBLE TORNADO 10 MILES NORTH OF
JEFFERSON CITY...OR ABOUT 5 MILES WEST OF NEW BLOOMFIELD AND MOVING
EAST AT 30 MPH. PERSONS IN NEW BLOOMFIELD AND HOLTS SUMMIT SHOULD
TAKE COVER IMMEDIATELY.
 
 
THIS IS A DANGEROUS STORM.  IF YOU ARE IN THE PATH OF THIS
TORNADO TAKE SHELTER IN A BASEMENT OR INTERIOR ROOM ON THE
LOWEST :FLOOR AND STAY AWAY FROM WINDOWS.  ABANDON CARS OR MOBILE
HOMES FOR A REINFORCED BUILDING OR GET INTO A DITCH OR CULVERT.
LARM

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 15, 2:26 PM CDT, 4 hours 14 minutes before
MOZ001-002-004-150630-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY INTERNATIONAL AIRPORT MO
220 PM CDT SAT JUN 15 1991

AT 215 PM...A LINE OF THUNDERSTORMS HAD DEVELOPED OVER NORTHEAST
KANSAS AND NORTHWEST MISSOURI.  THE THUNDERSTORMS WERE FROM JUST
EAST OF TOPEKA TO JUST NORTH OF THE KANSAS CITY INTERNATIONAL
AIRPORT AND NORTHEAST TO NORTHCENTRAL MISSOURI.

AT 205 PM...PEA TO MARBLE SIZED HAIL WAS REPORTED NORTH OF PLATTE
CITY ACCOMPANIED BY VERY HEAVY RAINS AND STRONG WINDS.

OTHER STRONG THUNDERSTORMS WERE OVER CLINTON AND DAVIESS COUNTIES
JUST TO THE SOUTHWEST AND NORTHEAST OF CAMERON MISSOURI.

THE STORMS WERE MOVING NORTHEAST 30 MILE AN HOUR.

HIBBERT
Local storm report, Jun 15, 4:52 PM CDT, 1 hour 48 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY INTERNATIONAL AIRPORT MO
550 PM CDT SAT JUN 15 1991

...SEVERE WEATHER FOR THE AFTERNOON OF SATURDAY JUNE 15TH...

TIME              EVENT                     LOCATION

246 PM            FUNNEL CLOUD NEAR GROUND  4 MILES SW OF LANSING IN
                                            LEAVENWORTH COUNTY KS.

337 PM            TORNADO ON GROUND         3 MILES NORTHEAST OF
                                            CHILLICOTHE IN LIVINGSTON
                                            COUNTY MISSOURI.
Special weather statement, Jun 15, 5:09 PM CDT, 1 hour 31 minutes before
MOZ002-004-005-008-009-152230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY INTERNATIONAL AIRPORT MO
505 PM CDT SAT JUN 15 1991

THE SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR PARTS OF NORTHWEST
MISSOURI...MAINLY THOSE COUNTIES TO THE NORTH OF THE MISSOURI RIVER.

THE ST JOSEPH AREA IS NO LONGER INCLUDED IN THIS WATCH.

HOWEVER...THE ENTIRE KANSAS CITY METRO AREA REMAINS INCLUDED IN
THIS WATCH UNTIL 9 PM.

AT 500 PM...RADAR INDICATED THE STRONGEST THUNDERSTORMS WERE 40 MILES
SOUTHWEST OF KANSAS CITY...AND ALONG THE MISSOURI RIVER FROM
20 MILES EAST OF KANSAS CITY TO 80 MILES EAST OF KANSAS CITY.

THEY WERE MOVING SOUTHEAST AT 20 MILES AN HOUR.
Local storm report, Jun 15, 6:30 PM CDT, 10 minutes before
LOCAL STORM REPORT...UPDATED...
NATIONAL WEATHER SERVICE KANSAS CITY INTERNATIONAL AIRPORT MO
630 PM CDT SAT JUN 15 1991

...SEVERE WEATHER FOR THE AFTERNOON OF SATURDAY JUNE 15TH...

TIME              E'VENT                     LOCATION

355 PM            LARGE TREE LIMBS DOWN     WHEELING AREA...EASTERN
                  AND 4 INCHES RAIN.        LIVINGSTON COUNTY MO.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 14, 9:36 PM CDTSevere Thunderstorm WarningEAXAndrew, Gentry, Nodaway39 min
Jun 14, 9:36 PM CDTSevere Thunderstorm WarningEAXWorth39 min
Jun 14, 11:13 PM CDTSevere Thunderstorm WarningEAXAtchison, Holt, Nodaway32 min
Jun 14, 11:50 PM CDTSevere Thunderstorm WarningEAXGentry, Nodaway, Worth40 min
Jun 15, 3:43 PM CDTTornado WarningEAXLivingston32 min
Jun 15, 3:50 PM CDTTornado WarningEAXLinn25 min

Nearby

Tornado Warnings in Missouri, 1991Every tornado warning in 1991Tornadoes in 1991

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.