Flash Flood Warning 38, NWS Kansas City, MO

Issued

Jul 30, 1998, 4:45 AM CDT (09:45 UTC)

Expired

Jul 30, 1998, 10:00 AM CDT

In force

5 hr

Issued by

NWS Kansas City, MO

Area

Whole counties; the outline is the Mesonet’s reconstruction

Counties Johnson County, MO, Pettis County, MO

The Pleasant Hill radar (KEAX), 49 km from the middle of the area, began a volume at 09:47 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

000 
TTAA00 KSTL 300944
FFWMCI
MOC101-159-301500-
BULLETIN - EAS ACTIVATION REQUESTED
URBAN AND SMALL STREAM FLOOD WARNING
NATIONAL WEATHER SERVICE KANSAS CITY-PLEASANT HILL MO
445 AM CDT THU JUL 30 1998

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* URBAND AND SMALL STREAM FLOOD WARNING FOR...
     PETTIS COUNTY IN MISSOURI
     JOHNSON COUNTY IN MISSOURI
     INCLUDING WARRENSBURG AND SEDALIA

* UNTIL 1000 AM CDT

* SOME STREAMS AND RIVERS AFFECTED
  BLACKWATER RIVER
  MUDDY CREEK
  HONEY CREEK
  WALNUT AND CLEAR CREEKS
  FLAT AND SPRING FORK CREEKS


* CAUSE AND EFFECT 
  AT 442 AM CDT WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY   
  RAIN EXITING EASTERN PETTIS COUNTY...WITH RADAR ESTIMATED RAINFALL 
  ESTIMATE NEAR 1 TO 1.5 INCHES ACROSS EASTERN JOHNSON AND ALL OF
  PETTIS AN HOUR. RAINFALL WAS FALLING IN JOHNSON COUNTY SINCE
  2:00 AM AND IN PETTIS COUNTY SINCE 3:00 AM.  THUNDERSTORMS WERE
  MOVING  EAST THROUGH THE WARNED COUNTIES NEAR 20 MPH...BUT     
  ADDITIONAL THUNDERSTORMS ARE EXPECTED TO MOVE ACROSS THE SAME AREA
  LATER THIS MORNING.

* FORECAST CONDITIONS
  AN ADDITIONAL TWO TO FOUR INCHES OF RAINFALL ARE EXPECTED SPREAD 
OVER ALREADY SATURATED GROUND ACROSS JOHNSON AND PETTIS COUNTY. 
HEAVY RAINFALL IS AGAIN ENTERING NORTHWESTERN JOHNSON COUNTY AND 
WILL SPREAD TO EASTERN PETTIS COUNTY BY 8:00 AM. THE HEAVY RAIN 
SHOULD COMPLETELY EXIT THESE COUNTY BEFORE 9:00 AM. PERSONS 
TRAVELING ON HIGHWAY 50 AND 65...AS WELL AS SECONDARY ROADS SHOULD 
BE CAUTIOUS FOR WATER ON THE ROADS THIS MORNING.  

EXCESSIVE RUNOFF FROM THIS STORM 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.

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.

AN URBAN AND SMALLL STREAM FLOOD WARNING MEANS THAT FLOODING IS 
OCCURRING OR IS IMMINENT. MOST FLOOD AND 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.

A URBAN AND SMALL STREAM FLOOD WARNING MEANS THAT FLOODING IS 
IMMINENT. IT IS IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO 
STREAMS...RIVERS...OR CREEKS WHICH CAN BECOME KILLERS IN HEAVY 
RAINS. CAMPERS SHOULD AVOID CAMPING ALONG STREAMS OR CREEKS DURING 
THREATENING RAINS.

LAT...LON 3892 9410 3858 9411 3856 9310 3893 9307

SMITH

NWS Kansas City, MO wrote its last area forecast discussion before this flash flood warning went out at Jul 30, 2:31 AM CDT, 2 hours 14 minutes earlier.

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
231 AM CDT THU JUL 30 1998

HEAVY RAIN THREAT CONTINUES INTO TODAY AS RADAR/SAT LOOPS SHOW CONTD
TRAINING OF STORMS FROM KS INTO NRN MO.  CAN'T EVEN SEE KANSAS ON
THE SAT LOOP DUE TO DUAL MCS'S OVR STATE.  THESE BEING FUELED BY
S/WV TRAVERSING AREA AND 30-35 KT LLJ.  PLENTY OF SFC AND ELEVATED
FTRS TO FOCUS ON AS WELL.  WHILE THERE SHOULD BE SOME DIURNAL DECREASE
IN THESE THIS MORNING...STORMS EXPECTED TO HEAD EAST INTO FCST AREA
TDY.  CRNT RADAR ESTIMATES BROAD SWATH OF HALF TO ONE-INCH RAINS
SO FAR...WITH LOCALIZED AMTS UP TO 2 INCHES.  KMKC ASOS HAD 1.81
INCHES IN JUST AN HOURS TIME ON 07Z OB.  THIS FALLING ON ALREADY
SOAKED SOIL.  WILL GO AHEAD AND EXTEND FLOOD WATCH THRU TDY ALNG
AND S OF A ST JOE TO FAYETTE LINE.  CLDS AND RAIN WILL KEEP TEMPS
DOWN...AND GUID NUMBERS APPEAR REASONABLE.

SFC RIDGING PROGGD TO NOSE SWD INTO NRN MO TONITE INTO FRI...AND
THIS SHOULD NUDGE PCPN THREAT SWD AS WELL.  MDLS IN DECENT AGREEMENT
ON THIS SCENARIO...WITH GUID POPS SLOWLY DECREASING N TO S.  THIS
TREND ALREADY ACCOUNTED FOR IN CRNT ZONES AND DON'T NEED TO CHANGE
ATTM.  WILL KEEP LOW POP OVR SRN ZNS FR"I...DRY N.

THANKS FOR THE COORD STL.

.EAX...
KS...FFA TODAY KSZ025-057-060-102>105
MO...FFA TODAY MOZ020-021-028>030-037>040-043>046-053-054

WELVAERT

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

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; radar from the NEXRAD Level II archive.