Alert archive / Kansas / Flash Flood Warnings in 1986

Flash Flood Warning 8, NWS Kansas City, MO

September 22, 1986Johnson County, Leavenworth County, Wyandotte County, Kansas

NWS Kansas City, MO issued this flash flood warning at Sep 22, 1986, 9:52 PM CDT for Johnson County, Leavenworth County, Wyandotte County, Kansas. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Sep 22, 1986, 9:52 PM CDT (02:52 UTC)
Expired
Sep 23, 1986, 2:00 AM CDT
In force
4 hr
Issued by
NWS Kansas City, MO
Area
Whole counties

Counties Johnson County, KS, Leavenworth County, KS, Wyandotte 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 00:00Z, 2.9 hours before the alert went out and 67 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 1986-09-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1534 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 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 1986-09-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 182 square meters per square second.19395878Sfc1 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
1534 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
1058 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
182 m²/s²
0-3 km storm-relative helicity
272 m²/s²
Significant tornado parameter
2.8
Supercell composite
21.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMCI 230252
FFWMCI
MOC095-037-KSC091-103-209-230700-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE KANSAS CITY INT'L AIRPORT MO
952 PM CDT MON SEP 22 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING 
EFFECTIVE UNTIL 200 AM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF

WEST CENTRAL MISSOURI...JACKSON AND NORTHERN CASS
EAST CENTRAL KANSAS...NORTHERN JOHNSON...SOUTHERN LEAVENWORTH AND 
 WYANDOTTE
6
AT 945 PM CDT HEAVY RAIN WAS INDICATED BY RADAR JUST TO WEST OF
THE SOUTHERN PORTIONS OF THE METRO AREA.  THIS RAIN WILL BE
ENTERING THE SOUTHERN PORTIONS OF THE METRO AREA BY 1015PM CDT.

What forecasters said that day

The local office's own words before this flash flood 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, Sep 22, 5:57 PM CDT, 3 hours 55 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY INTERNATIONAL AIRPORT MO
550 PM CDT MON SEP 22 1986

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR EXTREME NORTHEAST KANSAS
AND NORTHERN MISSOURI UNTIL 10 PM CDT...INCLUDING THE ST. JOSEPH AREA...

A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM FOR
DONIPHAN COUNTY KANSAS.

INTENSE THUNDERSTORMS COVERED DONIPHAN COUNTY KANSAS..AND SOUTHERN HOLT
AND WESTERN BUCHANAN COUNTIES IN MISSOURI.  ALTHOUGH SEVERE WEATHER HAS
NOT BEEN REPORTED..THE POTENTIAL CONTINUES TO EXIST.

THESE THUNDERSTORMS WILL PRODUCE VERY HEAVY RAIN WHICH COULD CAUSE
RAPID FLOODING OF CREEKS..STREAMS..AND LOW LYING URBAN AREAS.  DO NOT
ATTEMPT T*O WALK OR DRIVE THRU MOVING OR RISING WATER.

THE THUNDERSTORMS WERE MOVING TOWARD THE EAST AT 35 MILES AN HOUR AND
SHOULD CONTINUE IN THE ST. JOSEPH FOR THE NEXT HOUR.
Special weather statement, Sep 22, 6:35 PM CDT, 3 hours 17 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY INTERNATIONAL AIRPORT MO
630 PM CDT MON SEP 22 1986

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR EXTREME NORTHEAST KANSAS
AND NORTHERN MISSOURI UNTIL 10 PM CDT...INCLUDING THE ST. JOSEPH AREA...

AT 630 PM CDT..ALTHOUGH THE SEVERE THUNDERSTORM WARNING FOR DONIPHAN
COUNTY KANSAS IS NO LONGER IN EFFECT..INTENSE THUNDERSTORMS CONTINUED
TO COVER EXTREME NORTHEAST KANSAS AND PORTIONS OF NORTHWEST MISSOURI.

IN KANSAS..THE STRONGEST STORMS WERE LOCATED OVER ATCHISON AND DONIPHAN
COUNTIES..AND IN MISSOURI THE MOST INTENSE ACTIVITY WAS IN BUCHANAN
COUNTY.

THESE THUNDERSTORMS WILL PRODUCE VERY HEAVY RAIN WHICH COULD CAUSE
RAPID FLGOODING OF CREEKS..STREAMS..AND LOW LYING URBAN AREAS.  DO NOT
ATTEMPT TO WALK OR DRIVE THRU MOVING OR RISING WATER.

THE THUNDERSTORMS WERE MOVING TOWARD THE EAST AT 35 MILES AN HOUR.
Special weather statement, Sep 22, 7:18 PM CDT, 2 hours 34 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY INTERNATIONAL AIRPORT MO
715 PM CDT MON SEP 22 1986

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR EXTREME NORTHEAST KANSAS
AND NORTHERN MISSOURI UNTIL 10 PM CDT...INCLUDING THE ST. JOSEPH AREA...

AT 700 PM CDT..A LINE OF STRONG THUNDERSTORMS WAS FROM NEAR KIRKSVILLE
MISSOURI SOUTHWESTWARD TO THE NORTH EDGE OF THE KANSAS CITY METRO TO
ABOUT 25 MILES NORTH OF TOPEKA KANSAS.

THE STRONGEST STORMS WERE LOCATED NEAR PALO MISSOURI WHICH IS ABOUT
30 MILES NORTHEAST OF KANSAS CITY.  ALL OF THE STORMS WERE MOVING TOWARD
THE EASTSOUTHEAST AT ABOUT 20 MPH.

THESE THUNDERSTORMS WERE BRINGING MODERATE TO HEAVY RAIN TO THE NORTHERN
PORToIONS OF THE KANSAS CITY METRO AREA.  AS THESE STORMS MOVE SOUTH INTO
METRO AREA NORTH OF THE MISSOURI...LOW LYING AREAS COULD BECOME COVERED
WITH WATER DUE TO HEAVY RAINS.  MOTORISTS ARE CAUTIONED NOT TO DRIVE
THROUGH WATER COVERED ROADS.
Special weather statement, Sep 22, 7:44 PM CDT, 2 hours 8 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY INTERNATIONAL AIRPORT MO
730 PM CDT MON SEP 22 1986

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR NORTHERN MISSOURI...
   UNTIL 10 PM CDT...INCLUDING THE ST. JOSEPH AREA...

AT 730 PM CDT..AN AREA OF STRONG THUNDERSTORMS EXTENDED FROM KIRKSVILLE
MISSOURI SOUTHWESTWARD THRU KANSAS CITY TO JUST NORTH OF TOPEKA.
ONE OF THE STRONGEST STORMS WAS LOCATED ABOUT 15 MILES NORTHWEST OF
THE KANSAS CITY INTERNATIONAL AIRPORT..AND ANOTHER WAS ABOUT 10 MILES
EAST OF PATTONSBURG IN CALDWELL COUNTY MISSOURI.

THESE THUNDERSTORMS WERE BRINGING MODERATE TO HEAVY RAIN TO THE NORTHERN
PORTIONS OF THE KANSAS CITY METRO AREA..THE INTERNATIONAL AIRPORT
RECEIVED NEARLY ONE INCH OF RAIN IN A 20 MINUTE PERIOD.  LOW LYING
AREAS COULD BECOME COVERED WITH WATER DUE TO THE HEAVY RAINS.  MOTORISTS
ARE CAUTIONED NOT TO DRIVE THROUGH WATER COVERED STREETS.

MOVEMENT WAS TOWARD THE SOUTHEAST AT 20 MILES AN HOUR.
Special weather statement, Sep 22, 8:42 PM CDT, 1 hour 10 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE KANSAS CITY INTERNATIONAL AIRPORT MO
830 PM CDT MON SEP 22 1986

...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR NORTHCENTRAL AND
   NORTHEAST MISSOURI UNTIL 10 PM CDT...

THE SEVERE THUNDERSTORMS WATCH WHICH WAS ISSUED LATE MONDAY AFTERNOON
IS NO LONGER IN EFFECT FOR EXTREME NORTHEAST KANSAS AND NORTHWEST
MISSOURI.
AT 830 PM...A BAND OF NUMEROUS THUNDERSTORMS...SOME CONTAINING VERY
HEAVY RAIN...EXTENDED FROM NORTHEAST KANSAS INTO NORTHEAST MISSOURI.
THE BAND OF THUNDERSTORMS WAS 60 TO 80 MILES WIDE AND EXTENDED FROM
80 MILES WEST OF TOPKEA KANSAS THROUGH KANSAS CITY INTO THE EXTREME
NORTHEAST CORNER OF MISSOURI.

SOME FLOODNG OF SMALLER STREAMS AND IN LOW LYING AREAS IS LIKELY.  AND
MOTORIST ARE CAUTIONED NOT TO DRIVE THROUGH ROADS COVERED WITH WATER.

THE THUNDERSTORMS WERE MOVING SOUTHEAST AT 20 MILES AN HOUR.
Special weather statement, Sep 22, 9:45 PM CDT, 7 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE KANSAS CITY INTERNATIONAL AIRPORT MO
930 PM CDT MON SEP 22 1986

...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR NORTHCENTRAL AND
   NORTHEAST MISSOURI UNTIL 10 PM CDT...
...A FLASH FLOOD WATCH IS IN EFFECT FOR WESTCENTRAL...NORTHCENTRAL
AND NORTHEAST MISSOURI FOR TONIGHT...

AT 930 PM...A LARGE AREA OF NUMEROUS THUNDERSTORMS...SOME CONTAINING
VERY HEAVY RAIN...WAS IN EAST KANSAS...AND FROM WESTCENTRAL INTO
CENTRAL AND NORTHEAST MISSOURI.
THE THUNDERSTORMS WITH THE HEAVIEST RAINS WERE IN A BAND...40 MILES
WIDE...AND EXTENDED FROM JUST EAST OF TOPEKA KANSAS THROUGH KANSAS CITY
TO JUST NORTH OF COLUMBIA MISSOURI.

THE THUNDERSTORMS WERE MOVING SOUTHEAST AT 15 MILES AN HOUR.

NUMEROUS REPORTS OF STREET FLOODING HAS BEEN REPORTED OVER THE
SOUTHERN HALF OF THE KANSAS CITY METROPOLITAN AREA...MAINLY SOUTH OF
THE RIVER.

PERSONS SHOULD USE EXTREME CAUTION...DO NOT2 WALK OR DRIVE THROUGH
FLOWING WATER.

KEEP TUNED FOR ADDITONAL ADVISORIES OR WARNINGS.

Nearby

Flash Flood Warnings in Kansas, 1986Every flash flood 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.