Alert archive / Missouri / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 13, NWS Kansas City, MO

May 18, 1987Chariton County, Macon County, Randolph County, Missouri

NWS Kansas City, MO issued this severe thunderstorm warning at May 18, 1987, 10:14 PM CDT for Chariton County, Macon County, Randolph County, Missouri. It was in force for 61 min.

The area

The counties it named.

The facts

Issued
May 18, 1987, 10:14 PM CDT (03:14 UTC)
Expired
May 18, 1987, 11:15 PM CDT
In force
61 min
Issued by
NWS Kansas City, MO
Area
Whole counties

Counties Chariton County, MO, Macon County, MO, Randolph 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

Topeka, KS (KTOP), launched 00:00Z, 3.2 hours before the alert went out and 264 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 00:00Z on 1987-05-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4455 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 1987-05-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 16 square meters per square second.1939587897Sfc1 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
4455 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
1095 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
16 m²/s²
0-3 km storm-relative helicity
64 m²/s²
Significant tornado parameter
0.8
Supercell composite
4.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KCOU 190314
SVRCOU
MOC121-041-175-190415-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE COLUMBIA MO
1014 PM CDT MON MAY 18 1987

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 1115 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES OF

NORTH CENTRAL MISSOURI...SOUTHERN MACON...EASTERN CHARITON AND 
 RANDOLPH

AT 1010 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM JUST ERAST
OF MARCELINE MOVING SOUTHEAST AT 20 MILES AN HOUR. THIS
THUNDERSTORM WILL PASS OVER THOMAS HILL RESERVOIR.

BOATERS ON LAKES SHOULD MOVE TO SHELTER IMMEDIATELY.

 VOTAW

What forecasters said that day

The local office's own words before this severe thunderstorm 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, May 18, 6:46 PM CDT, 3 hours 28 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE KANSAS CITY INTERNATIONAL AIRPORT MO
630 PM CDT MON MAY 18 1987

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR A LARGE PART OF
EAST AND NORTHEAST KANSAS AND WEST CENTRAL AND NORTH MISSOURI UNTIL
MIDNIGHT THIS MONDAY EVENING...

AT 530 PM...AN INTENSE THUNDERSTORM WAS OCCURRING IN CENTRAL
LEAVENWORTH COUNTY KANSAS. THE LEAVENWORTH COUNTY SHERIFF REPORTED
HAIL BETWEEN 1/4 AND 1/2 INCH SIZE HAIL...HEAVY RAIN AND GUSTY WINDS
JUST TO THE WEST OF THE CITY OF LEAVENWORTH.

OTHER VERY HEAVY THUNDERSTORMS...WITH POSSIBLE HAIL...STRONG GUSTY
SURFACE WINDS AND HEAVY RAIN...WERE IN LYON COUNTY IN KANSAS AND ALONG
THE IOWA, MISSOURI STATELINE NEAR HARRISON COUNT MISSOURI.

MOVEMENT WAS TOWARD THE EAST AT 20 MPH.
Special weather statement, May 18, 9:29 PM CDT, 45 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE KANSAS CITY INTERNATIONAL AIRPORT MO
935 PM CDT MON MAY 18 1987

...A SEVERE THUNDERSTORM WATCH HAS EXPIRED FOR THE KANSAS CITY
METROPOLITAIN AREA AS OF 930 PM CDT...

AT 930 PM...THUNDERSTORMS WITH VERY HEAVY RAIN AND POSSIBLY HAIL
WERE LOCATED IN A LINE FROM 20 MILES EAST OF ST JOSEPH MISSOURI TO
100 MILES EAST OF ST JOSEPH MISSOURI. MORE INTENSE THUNDERSTORMS
...AGAIN WITH VER4Y HEAVY RAIN AND HAIL WERE 20 TO 60 MILES SOUTH
 OF KANSAS CITY...THIS AREA OF STORMS WAS 60 MILES WIDE WEST TO EAST.
INTENSE THUNDERSTORMS WERE ALSO 75 MILES SOUTH OF TOPEKA KANSAS.

MOVEMENT WAS TOWARD THE SOUTHEAST AT 20 MILES AND HOUR.

The office that day

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

IssuedProductOfficeCountiesLasted
May 18, 7:29 PM CDTSevere Thunderstorm WarningEAXJackson46 min
May 18, 7:41 PM CDTSevere Thunderstorm WarningEAXCass49 min
May 18, 7:48 PM CDTSevere Thunderstorm WarningEAXJackson42 min
May 18, 8:28 PM CDTTornado WarningEAXBates, Cass32 min
May 18, 8:57 PM CDTTornado WarningEAXBates, Cass33 min
May 19, 4:27 PM CDTSevere Thunderstorm WarningEAXMaries, Pulaski33 min

Nearby

Severe Thunderstorm Warnings in Missouri, 1987Every severe thunderstorm warning in 1987

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.