Alert archive / Missouri / Tornado Warnings in 1991

Tornado Warning 6, NWS Kansas City, MO

June 15, 1991Linn County, Missouri

NWS Kansas City, MO issued this tornado warning at Jun 15, 1991, 3:50 PM CDT for Linn County, Missouri. It was in force for 25 min.

The area

The counties it named.

The facts

Issued
Jun 15, 1991, 3:50 PM CDT (20:50 UTC)
Expired
Jun 15, 1991, 4:15 PM CDT
In force
25 min
Issued by
NWS Kansas City, MO
Area
Whole counties

County Linn County, MO

The nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 8.8 hours before the alert went out and 238 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 1991-06-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2594 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, Topeka, KS at 12:00Z on 1991-06-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 95 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
2594 J/kg
Mixed-layer CIN
-45 J/kg
Mixed-layer LCL
683 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
95 m²/s²
0-3 km storm-relative helicity
81 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KCOU 152050
TORCOU
MOC115-152115-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE COLUMBIA MO
350 PM CDT SAT JUN 15 1991
 
THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  415 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS......
 
IN NORTH CENTRAL MISSOURI
 
   ...LINN COUNTY
 
AT 340 PM A TORNADO WAS REPORTED ON THE GROUND 3 MILES NORTHEAST
OF CHILLICOTHE. INTENSE THUNDERSTORMS WERE IN WESTERN LINN COUNTY
MOVING EAST AT 35 MILES AN HOUR.
 
 
IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS A
BASEMENT.  GET UNDER A TABLE OR PIECE OF STURDY FURNITURE.
IF NO BASEMENT IS AVAILABLE...TAKE SHELTER IN AN INTERIOR ROOM
SUCH NAS A CLOSET ON THE LOWEST FLOOR.  REMEMBER TO STAY AWAY FROM
WINDOWS.

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, 1 hour 24 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

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, 6:40 PM CDTTornado WarningEAXCallaway35 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.