Alert archive / Missouri / Flash Flood Warnings in 1998

Flash Flood Warning 11, NWS Kansas City, MO

June 23, 1998Wyandotte County, Kansas; Clay County, Jackson County, Platte County, Missouri

NWS Kansas City, MO issued this flash flood warning at Jun 23, 1998, 5:54 AM CDT for Wyandotte County, Kansas; Clay County, Jackson County, Platte County, Missouri. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 23, 1998, 5:54 AM CDT (10:54 UTC)
Expired: Jun 23, 1998, 9:00 AM CDT
In force: 3 hr
Issued by: NWS Kansas City, MO
Area: Whole counties

Counties Wyandotte County, KS, Clay County, MO, Jackson County, MO, Platte County, MO

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 10.9 hours before the alert went out and 95 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1688 J/kg
Mixed-layer CIN: -66 J/kg
Mixed-layer LCL: 1104 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: -21 m²/s²
0-3 km storm-relative helicity: 42 m²/s²
Significant tornado parameter: -0.1
Supercell composite: -0.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMCI 231127 COR
FFWMCI
KSC091-209-MOC047-095-165-231400-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE KANSAS CITY-PLEASANT HILL MO
554 AM CDT TUE JUN 23 1998...CORRECTED PRODUCT HEADER

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* FLASH FLOOD WARNING FOR...
     NORTHEASTERN JOHNSON COUNTY IN KANSAS
     WYANDOTTE COUNTY IN KANSAS
     CLAY COUNTY IN MISSOURI
     NORTHWESTERN JACKSON COUNTY IN MISSOURI
     SOUTHEASTERN PLATTE COUNTY IN MISSOURI
     INCLUDING KANSAS CITY

* UNTIL 900 AM CDT

* AT 530 AM CDT THE PUBLIC AND COUNTY OFFICIALS REPORTED NUMEROUS
FLOODED BASEMENTS IN CLAY AND WYANDOTTE COUNTIES DUE TO THE VERY
HEAVY RAINFALL. INTERSTATE 70 HAS ALSO BEEN CLOSED IN DOWNTOWN
KANSAS CITY DUE TO FLOODED UNDERPASSES.

EXCESSIVE RUNOFF FROM THE EARLY MORNING STORMS WILL CAUSE FLASH
FLOODING OF SMALL CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES.
ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS
AND STREAMS AND OTHER LOW LYING AREAS ARE SUBJECT TO FLASH FLOODING.

ADDITIONAL SHOWERS AND ISOLATED THUNDERSTORMS WILL CONTINUE ACROSS
THE GREATER KANSAS CITY AREA THROUGH 8 AM...HOWEVER HEAVY RAINS ARE
NOT EXPECTED.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY.
MOVE TO HIGHER GROUND.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT
ATTEMPT TO CROSS BRIDGES...DIPS...OR OTHER LOW SPOTS IF WATER COVERS
THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL
ONE...ON FOOT>. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.


JULY

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.

NWS Kansas City, MO wrote its last area forecast discussion before this flash flood warning went out at Jun 23, 3:00 AM CDT, 2 hours 54 minutes earlier.

Area forecast discussion, Jun 23, 3:00 AM CDT, 2 hours 54 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
300 AM CDT TUE JUN 23 1998

ROUND FIVE...AND 2ND NIGHT IN A ROW FOR MULTIPLE MCSS UPSTREAM OF
CWA.  THIS FCST PROBABLY THE TRICKIEST.  MAIN TWO PROBLEMS ARE NEED
FOR FF WATCH AND POPS TONIGHT.  TOUGH CALL ON THE FFA.  FFG VALUES
VERY LOW OVER SRN HALF OF CWA WHERE 1-3 FELL 24 HOURS AGO.  NRN
COUNTIES CAN TAKE A BIT MORE...THOUGH NOT THAT MUCH.  ETA WOULD
SUGGEST (THOUGH IT COMPLETELY MISSED THE CURRENT ERN KS ACTIVITY)
THAT 850 JET WILL VEER SLIGHTLY DURING MORNING AND STRENGTHEN.
POSITIONING OF JET WOULD SUGGEST THAT SWRN NEB ACTIVITY WOULD ROLL
EWD ALONG KS/NEB BORDER SO WE MAY VERY WELL GET TWO ROUNDS AGAIN
PRIOR TO 18Z.  BASED ON THIS...WILL GO AHEAD AND ISSUE FFA FOR THIS
AM.  NERN COUNTIES CERTAINLY THE WEAKEST ARGUMENT FOR FFA...BUT FOR
SIMPLICITYS SAKE WILL PROBABLY INCLUDE THEM AS WELL.

MODELS ALL DO COMPLETELY DIFFERENT THINGS WITH OUR EVER-SO CRITICAL
BOUNDARY.  WITH WRN GT LAKES SFC HIGH RETREATING EWD...FRONT SHD
HAVE EASIER TIME WORKING NORTH.  IF WE ARE ABLE TO CLEAR OUT
TODAY...BOUNDARY SHOULD HAVE EASY TIME MOVING NORTH OF CWA.  IF
NOT...TONIGHTS LLJ (WHICH SHOULD BE FOCUSED WELL NORTH) WILL ONCE
AGAIN IMPINGE ON BOUNDARY AND WE COULD DO IT ALL OVER AGAIN.
HOWEVER...THINK WARMING TEMPS AT 700 MB SHOULD LARGELY PRECLUDE TSRA
DEVELOPMENT.  WILL PROBABLY LEAVE FCST DRY TONIGHT ALTHOUGH MAY
INCLUDE LOW CHC POPS IN NW COUNTIES WHERE THEY STAND THE BEST CHC.

GUIDANCE TEMPS TODAY ACCEPTED AS TIMING OF CLEARING WILL MEAN
EVERYTHING.  WILL GO WITH WARMER FAN IN PERIODS 2-4.

.EAX...
MO...FLASH FLOOD WATCH ALL ZONES THIS MORNING
KS...FLASH FLOOD WATCH ALL ZONES THIS MORNING

JM

In the hours before

Local storm report, Jun 23, 1:10 AM CDT, 4 hours 44 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
110 AM CDT TUE JUN 23 1998

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1220 AM    5 E CLINTON               MO    1.5 INCH HAIL
06/23/98   HENRY

Local storm report, Jun 23, 1:10 AM CDT, 4 hours 44 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
110 AM CDT TUE JUN 23 1998

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1220 AM    5 E CLINTON               MO    1.5 INCH HAIL
06/23/98   HENRY

Local storm report, Jun 23, 4:38 AM CDT, 1 hour 16 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
438 AM CDT TUE JUN 23 1998

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0403 AM    LIBERTY                   MO    1 INCH HAIL
06/23/98   CLAY

0422 AM    KANSAS CITY               MO    80 MPH TSTM GUST
06/23/98   JACKSON                         LARGE TREES DOWN.
                                           ESTIMATED WIND SPEED.

Local storm report, Jun 23, 4:38 AM CDT, 1 hour 16 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
438 AM CDT TUE JUN 23 1998

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0403 AM    LIBERTY                   MO    1 INCH HAIL
06/23/98   CLAY

0422 AM    KANSAS CITY               MO    80 MPH TSTM GUST
06/23/98   JACKSON                         LARGE TREES DOWN.
                                           ESTIMATED WIND SPEED.

Local storm report, Jun 23, 5:03 AM CDT, 51 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
503 AM CDT TUE JUN 23 1998

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0415 AM    MERRIAM                   KS    WIND DAMAGE
06/23/98   JOHNSON                         VERY LARGE TREE DOWN

0415 AM    OVERLAND PARK             KS    WIND DAMAGE
06/23/98   JOHNSON                         TREES BLOWN DOWN

0415 AM    SHAWNEE                   KS    WIND DAMAGE
06/23/98   JOHNSON                         POWER LINES DOWN

0420 AM    (MKC)KS CITY DNTN ARPT    MO    62 MPH TSTM GUST
06/23/98   JACKSON

0420 AM    MISSION                   KS    WIND DAMAGE
06/23/98   JOHNSON                         TREES BLOWN DOWN

0420 AM    RIVERSIDE                 MO    WIND DAMAGE
06/23/98   PLATTE                          8 DIAMETER TREE LIMBS
                                           DOWN

Local storm report, Jun 23, 5:03 AM CDT, 51 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
503 AM CDT TUE JUN 23 1998

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0415 AM    MERRIAM                   KS    WIND DAMAGE
06/23/98   JOHNSON                         VERY LARGE TREE DOWN

0415 AM    OVERLAND PARK             KS    WIND DAMAGE
06/23/98   JOHNSON                         TREES BLOWN DOWN

0415 AM    SHAWNEE                   KS    WIND DAMAGE
06/23/98   JOHNSON                         POWER LINES DOWN

0420 AM    (MKC)KS CITY DNTN ARPT    MO    62 MPH TSTM GUST
06/23/98   JACKSON

0420 AM    MISSION                   KS    WIND DAMAGE
06/23/98   JOHNSON                         TREES BLOWN DOWN

0420 AM    RIVERSIDE                 MO    WIND DAMAGE
06/23/98   PLATTE                          8 DIAMETER TREE LIMBS
                                           DOWN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 23, 3:24 AM CDT	Severe Thunderstorm Warning	EAX	Johnson, Miami	56 min
Jun 23, 5:54 AM CDT	Flash Flood Warning	EAX	Johnson	3 hr
Jun 23, 5:54 AM CDT	Severe Thunderstorm Warning	EAX	Johnson, Wyandotte	3 hr
Jun 23, 8:58 AM CDT	Flash Flood Warning	EAX	Leavenworth, Wyandotte	92 min
Jun 23, 12:36 AM CDT	Severe Thunderstorm Warning	EAX	Henry	39 min
Jun 23, 1:31 AM CDT	Severe Thunderstorm Warning	EAX	Henry	44 min
Jun 23, 3:59 AM CDT	Severe Thunderstorm Warning	EAX	Clay, Jackson	61 min
Jun 23, 4:49 AM CDT	Severe Thunderstorm Warning	EAX	Lafayette	41 min
Jun 23, 5:10 AM CDT	Severe Thunderstorm Warning	EAX	Carroll, Saline	50 min
Jun 23, 5:40 AM CDT	Severe Thunderstorm Warning	EAX	Chariton	50 min
Jun 23, 5:54 AM CDT	Severe Thunderstorm Warning	EAX	Platte	3 hr

Nearby

Flash Flood Warnings in Missouri, 1998 Flash Flood Warnings in Kansas, 1998 Every flash flood warning in 1998

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.