Alert archive / Kansas / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 28, NWS Kansas City, MO

June 6, 1990Leavenworth County, Kansas

NWS Kansas City, MO issued this severe thunderstorm warning at Jun 6, 1990, 8:16 AM CDT for Leavenworth County, Kansas. It was in force for 29 min.

The area

The counties it named.

The facts

Issued
Jun 6, 1990, 8:16 AM CDT (13:16 UTC)
Expired
Jun 6, 1990, 8:45 AM CDT
In force
29 min
Issued by
NWS Kansas City, MO
Area
Whole counties

County Leavenworth County, KS

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 12:00Z, 1.3 hours before the alert went out and 56 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 1990-06-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2324 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 1990-06-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 143 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
2324 J/kg
Mixed-layer CIN
-49 J/kg
Mixed-layer LCL
686 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
143 m²/s²
0-3 km storm-relative helicity
240 m²/s²
Significant tornado parameter
1.9
Supercell composite
8.9

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMCI 061316
SVRMCI
KSC103-061345-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE KANSAS CITY INT'L AIRPORT MO
816 AM CDT WED JUN 6 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 845 AM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTY

   IN THE NORTHEAST PART OF KANSAS
      LEAVENWORTH

AT 810 AM CDT RADAR INDICATED A SEVERE THUNDERSTORM 15 MILES NORTH
OF LAWERENCE KANSAS MOVING NORTHEAST AT 40 MPH.

IF YOU ARE IN AN AREA THREATENED BY THE STORM...GO TO A REINFORCED
SHELTER AND PREPARE FOR DAMAGING WIND...LARGE HAIL...AND VERY HEAVY
RAIN.

HEAVY RAINS WILL QUICKLY FLOOD SMALL STREAMS AND LOW LYING AREAS.

 CJS/RAH/LTH/GG

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, Jun 6, 5:18 AM CDT, 2 hours 58 minutes before
MOZ008-005-061100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY INTERNATIONAL AIRPORT MO
515 AM CDT WED JUN 6 1990

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR PARTS OF NORTHWEST
MISSOURI AND NORTHEAST KANSAS UNTIL 900 AM CDT...

AT 505 AM...RADAR INDICATED A THUNDERSTORM...PRODUCING VERY HEAVY
RAIN...OVER EXTREME NORTHEAST CLAY COUNTY AND NORTHWEST RAY COUNTY...
IN WESTCENTRAL MISSOURI.  THIS STORM HAS SHOWN LITTLE MOVEMENT DURING
THE PAST SEVERAL HOURS AND SOME FLOODING IS LIKELY IN THESE COUNTIES.
THE COMMUNITIES OF LAWSON...VIBBARD AND UNION IN RAY COUNTY SHOULD
BE RECIEVING VERY HEAVY RAIN.

PERSONS IN FLOOD PRONE AREAS AND MOTORISTS SHOULD BE VERY CAREFUL.
DO NOT ATTEMPT TO CROSS MOVING WATER...EITHER ON FOOT OR IN A VEHICLE.
LYING AREAS IS POSSIBLE WITH THESE STORMS. MOTORISTS SHOULD USE
CAUTION.

OTHER SHOWERS WERE LOCATED OVER THE SOUTHEAST CORNER OF NEBRASKA...
AND ALONG THE MISSOURI-IOWA BORDER NORzTH OF MARYVILLE MISSOURI.

MOVEMENT OF ALL SHOWERS AND THUNDERSTORMS WAS EAST AT 45 MILES AN
HOUR.

LONGNECKER
Special weather statement, Jun 6, 5:20 AM CDT, 2 hours 56 minutes before
MOZ008-005-061100-

SPECIAL WEATHER STATEMENT...CORRECTED...
NATIONAL WEATHER SERVICE KANSAS CITY INTERNATIONAL AIRPORT MO
519 AM CDT WED JUN 6 1990

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR PARTS OF NORTHWEST
MISSOURI AND NORTHEAST KANSAS UNTIL 900 AM CDT...

AT 505 AM...RADAR INDICATED A THUNDERSTORM...PRODUCING VERY HEAVY
RAIN...OVER EXTREME NORTHEAST CLAY COUNTY AND NORTHWEST RAY COUNTY...
IN WESTCENTRAL MISSOURI.  THIS STORM HAS SHOWN LITTLE MOVEMENT DURING
THE PAST SEVERAL HOURS AND SOME FLOODING IS LIKELY IN THESE COUNTIES.
THE COMMUNITIES OF LAWSON...VIBBARD AND UNION IN RAY COUNTY SHOULD
BE RECIEVING VERY HEAVY RAIN.

PERSONS IN FLOOD PRONE AREAS AND MOTORISTS SHOULD BE VERY CAREFUL.
DO NOT ATTEMPT TO CROSS MOVING WATER...EITHER ON FOOT OR IN A VEHICLE.
LYING AREAS IS POSSIBLE WITH THESE STORMS. MOTORISTS SHOULD USE
CAUTION.
Special weather statement, Jun 6, 5:21 AM CDT, 2 hours 55 minutes before
MOZ008-005-061100-

SPECIAL WEATHER STATEMENT...CORRECTED...
NATIONAL WEATHER SERVICE KANSAS CITY INTERNATIONAL AIRPORT MO
521 AM CDT WED JUN 6 1990

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR PARTS OF NORTHWEST
MISSOURI AND NORTHEAST KANSAS UNTIL 900 AM CDT...

AT 505 AM...RADAR INDICATED A THUNDERSTORM...PRODUCING VERY HEAVY
RAIN...OVER EXTREME NORTHEAST CLAY COUNTY AND NORTHWEST RAY COUNTY...
IN WESTCENTRAL MISSOURI.  THIS STORM HAS SHOWN LITTLE MOVEMENT DURING
THE PAST SEVERAL HOURS AND SOME FLOODING IS LIKELY IN THESE COUNTIES.
THE COMMUNITIES OF LAWSON...VIBBARD AND UNION IN RAY COUNTY SHOULD
BE RECIEVING VERY HEAVY RAIN.

PERSONS IN FLOOD PRONE AREAS AND MOTORISTS SHOULD BE VERY CAREFUL.
DO NOT ATTEMPT TO CROSS MOVING WATER...EITHER ON FOOT OR IN A VEHICLE.
Special weather statement, Jun 6, 6:56 AM CDT, 1 hour 20 minutes before
MOZ008-061245-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE KANSAS CITY INTERNATIONAL AIRPORT MO
655 AM CDT WED JUN 6 1990

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR PARTS OF NORTHEAST
KANSAS AND FOR MUCH OF NORTHERN MISSOURI UNTIL 12 NOON CDT...

AT 630 AM... SCATTERED THUNDERSTORMS WITH VERY HEAVY RAIN WERE OVER
PARTS OF NORTHEAST KANSAS AND OVER MUCH OF NORTHERN MISSOURI. THIS
ACTIVITY WAS LOCATED NORTHEAST OF A LINE FROM CONCORDIA KANSAS
THROUGH TOPEKA TO THE LAKE OF THE OZARKS AREA IN CENTRAL MISSOURI.

THE HEAVIEST STORMS WERE LOCATED OVER MARSHALL COUNTY IN NORTHEAST
KANSAS... 25 MILES NORTH OF ST JOSEPH MISSOURI NEAR OREGON... AND
50 MILES NORTHEAST OF KANSAS CITY NEAR CHILLICOTHE MISSOURI.

THESE STORMS HAVE A HISTORY OF PRODUCING LOCALLY HEAVY RAINFALL...
AS WELL AS HAIL RANGING UP TO GOLF BALL SIZE.

IF YOU ARE PLANNING TRAVEL THIS MORNING... YOU SHOULD USE EXTRA
CAUTION AND DO NOT ATTEMPT TO DRIVE INTO AREAS WHERE WATER COVERS
THE ROAD.

LONGNECKER
Special weather statement, Jun 6, 7:47 AM CDT, 29 minutes before
MOZ008-061345-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE KANSAS CITY INTERNATIONAL AIRPORT MO
745 AM CDT WED JUN 6 1990

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR PARTS OF NORTHEAST
KANSAS AND FOR MUCH OF NORTHERN MISSOURI UNTIL 12 NOON CDT...

...A FLASH FLOOD WATCH IS IN EFFECT FOR NORTHWEST MISSOURI UNTIL
12 NOON CDT...

AT 730 AM... SCATTERED SHOWERS AND THUNDERSTORMS... SOME WITH VERY
HEAVY RAIN... WERE OVER PARTS OF EXTREME NORTHEAST KANSAS AND OVER
MUCH OF NORTHERN MISSOURI. THIS ACTIVITY WAS LOCATED NORTH OF A LINE
FROM MANHATTAN KANSAS THROUGH KANSAS CITY TO THE LAKE OF THE OZARKS
AREA IN CENTRAL MISSOURI.

THE HEAVIEST STORMS WERE LOCATED 50 MILES NORTH OF TOPEKA NEAR
FAIRVIEW KANSAS... AND 35 MILES EAST OF KANSAS CITY NEAR LEXINGTON
MISSOURI.

THESE THUNDERSTORMS HAVE PRODUCED LOCALLY HEAVY RAINFALL IN MANY
AREAS OF NORTHWEST MISSOURI THIS MORNING... AND HAVE PRODUDED MINOR
FLOODING ON SOME AREA ROADWAYS.

IF YOU ARE PLANNING TRAVEL THIS MORNING... YOU SHOULD USE EXTRA
CAUTION AND DO NOT ATTEMPT TO DRIVE INTO AREAS WHERE WATER COVERS
THE ROAD.

LONGNECKER

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 6, 6:11 AM CDTSevere Thunderstorm WarningEAXDoniphan34 min

Nearby

Severe Thunderstorm Warnings in Kansas, 1990Every severe thunderstorm warning in 1990

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.