Alert archive / Missouri / Tornado Warnings in 1991

Tornado Warning 9, NWS Kansas City, MO

July 2, 1991Linn County, Missouri

NWS Kansas City, MO issued this tornado warning at Jul 2, 1991, 3:58 PM CDT for Linn County, Missouri. It was in force for 27 min.

The area

The counties it named.

The facts

Issued
Jul 2, 1991, 3:58 PM CDT (20:58 UTC)
Expired
Jul 2, 1991, 4:25 PM CDT
In force
27 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, 9.0 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 1991-07-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 731 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 1991-07-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -47 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
731 J/kg
Mixed-layer CIN
-148 J/kg
Mixed-layer LCL
1259 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
-47 m²/s²
0-3 km storm-relative helicity
32 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KCOU 022059
TORCOU
MOC115-022130-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE COLUMBIA MO
358 PM CDT TUE JUL 2 1991
 
THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  430 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS......
 
IN NORTH CENTRAL MISSOURI
 
   ...SOUTHERN LINN COUNTY
 
AT 355PM CDT...RADAR INDICATED A POSSIBLE TORNADO NEAR BROOKFIELD AND
LACLEDE IN SOUTHERN LINN COUNTY...OR 35 MILES SOUTHWEST OF KIRKSVILLE...
AND MOVING SOUTHEAST AT 25 MPH.
 
PERSONS IN BROOKFILED....LACLEDE AND MARCELINE SHOULD TAKE COVER NOW.
 
 
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

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 2, 7:29 AM CDTSevere Thunderstorm WarningEAXBoone46 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.