Alert archive / Missouri / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 36, NWS Kansas City, MO

July 12, 1986Boone County, Missouri

NWS Kansas City, MO issued this severe thunderstorm warning at Jul 12, 1986, 7:39 PM CDT for Boone County, Missouri. It was in force for 61 min.

The area

The counties it named.

The facts

Issued
Jul 12, 1986, 7:39 PM CDT (00:39 UTC)
Expired
Jul 12, 1986, 8:40 PM CDT
In force
61 min
Issued by
NWS Kansas City, MO
Area
Whole counties

County Boone 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, 0.7 hours before the alert went out and 267 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 1986-07-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3026 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 1986-07-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 126 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
3026 J/kg
Mixed-layer CIN
-39 J/kg
Mixed-layer LCL
1047 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
126 m²/s²
0-3 km storm-relative helicity
261 m²/s²
Significant tornado parameter
2.7
Supercell composite
16.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KCOU 130039
SVRCOU
MOC019-130140-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE COLUMBIA MO
739 PM CDT SAT JUL 12 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 840 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTY OF

CENTRAL MISSOURI...SOUTHERN BOONE

 AT 735 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES WEST
 OF COLUMBIA REGIONAL AIRPORT MOVING EAST AT 30 MILES AN HOUR.

REMEMBER A SEVERE THUNDERSTORM PRODUCES DAMAGING WINDS IN EXCESS OF
60 MPH..LARGE HAIL..DEADLY LIGHTNING AND HEAVY RAIN THAT CAN QUICKLY
FLOOD A LOW LYING AREA.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY AND ASK
THEM OTO RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE.

 LA GREE

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 12, 7:15 PM CDTSevere Thunderstorm WarningEAXBenton, Pettis60 min

Nearby

Severe Thunderstorm Warnings in Missouri, 1986Every severe thunderstorm warning in 1986

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.