Alert archive / Missouri / Flash Flood Warnings in 2004

Flash Flood Warning 52, NWS Kansas City, MO

August 27, 2004Clay County, Jackson County, Missouri

NWS Kansas City, MO issued this flash flood warning at Aug 27, 2004, 7:39 PM CDT for Clay County, Jackson County, Missouri. It was in force for 6 hr. 4 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Aug 27, 2004, 7:39 PM CDT (00:39 UTC)
Expired
Aug 28, 2004, 1:45 AM CDT
In force
6 hr
Issued by
NWS Kansas City, MO
Area
Counties, with a storm outline in the text
Emergency
Flash flood emergency

Counties Clay County, MO, Jackson County, MO

The radar

The Pleasant Hill radar (KEAX), 37 km from the middle of the area, began a volume at 00:39 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.

What was reported inside it

TimeReportWhereRemark
Aug 27, 7:45 PM CDTFLASH FLOODKansas City, MOROADS COVERED ON WARD PARKWAY.
Aug 27, 8:17 PM CDTFLASH FLOOD5 W Buckner, MOWATER OVER 24 HIGHWAY
Aug 27, 10:00 PM CDTFLASH FLOODBirmingham, MORANDOLPH AND NORTHEAST BIRMINGHAM NEAR AMERISTAR CASINO CLOSED DUE TO WATER OVER THE ROADWAY.
Aug 27, 10:00 PM CDTFLASH FLOODMosby, MOHIGHWAY 69 NEAR MOSBY CLOSED DUE TO WATER OVER ROADWAY.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 0.7 hours before the alert went out and 118 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 2004-08-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3473 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Topeka, KS at 00:00Z on 2004-08-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 50 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
3473 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
1317 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
50 m²/s²
0-3 km storm-relative helicity
229 m²/s²
Significant tornado parameter
2.8
Supercell composite
28.1

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KEAX 280042
FFWEAX
MOC047-095-280645-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
739 PM CDT FRI AUG 27 2004

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CLAY COUNTY IN WEST CENTRAL MISSOURI
  JACKSON COUNTY IN WEST CENTRAL MISSOURI

* UNTIL 145 AM CDT

* AT 733 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS WITH VERY HEAVY RAINFALL WILL CONTINUE TO DEVELOP
  AND MOVE ACROSS DOWNTOWN KANSAS CITY...GLADSTONE...AND WESTWOOD
  HILLS AREA.  RAINFALL RATES OF 2 TO 3 INCHES PER HOUR ARE
  OCCURING WITH THESE STORMS.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  KANSAS CITY...AVONDALE...BLUE SPRINGS...BUCKNER...EXCELSIOR
  SPRINGS...GLADSTONE...GRAIN VALLEY...GRANDVIEW...INDEPENDENCE...
  LAKE LOTAWANA...LEES SUMMIT AND LEVASY

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. DO NOT DRIVE AROUND
BARRICADES SET UP TO BLOCK WATER COVERED ROADWAYS. THE BARRICADES ARE
SET UP FOR YOUR PROTECTION.

BE AWARE THAT LOW WATER CROSSINGS MAY BE IN YOUR AREA...WHICH ARE
POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS
FLOODED ROADS. FIND ALTERNATE ROUTES. IT ONLY TAKES A FEW INCHES OF
SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY.

DO NOT UNDERESTIMATE THE POWER OF FLOOD WATERS. ONLY A FEW INCHES OF
RAPIDLY FLOWING WATER CAN QUICKLY CARRY AWAY YOUR VEHICLE.
REMEMBER...TURN AROUND...DONT DROWN.

LAT...LON 3935 9422 3920 9423 3914 9413 3909 9413
      3884 9414 3885 9461 3935 9461

$$

SF
4 follow-up statements
000 
WGUS73 KEAX 280057
FFSEAX
MOC047-095-280515-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
754 PM CDT FRI AUG 27 2004

...A VERY DANGEROUS FLASH FLOOD EMERGENCY DEVELOPING ALONG BRUSH 
CREEK NEAR WARD PARKWAY... 

...KC FIRE REPORTS NUMEROUS WATER RESCUES...

EXTREMELY RAPID RISES HAVE BEEN NOTED ALONG BRUSH CREEK NEAR WARD 
PARKWAY...WHERE THE CREEK ROSE FROM 35 FEET AT 725 PM TO 42 FEET AT 
742 PM. RAPID DEVELOPMENT OF LIFE-THREATENING FLASH FLOODING IS 
ANTICIPATED.  IF YOU OBSERVE RAPIDLY RISING WATER...IMMEDIATELY 
EVACUATE YOUR LOCATION FOR HIGHER GROUND

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE 
ROADWAY. YOU WILL RISK YOUR LIFE IN THIS SITUATION IF YOU DO SO. 
VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO 
HIGHER GROUND.

LAT...LON 3939 9460 3890 9456 3891 9421 3942 9426

$$

HUDSON
000 
WGUS73 KEAX 280300
FFSEAX
MOC047-095-280645-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
955 PM CDT FRI AUG 27 2004

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR CLAY AND JACKSON 
COUNTIES UNTIL 145 AM CDT...

AUTOMATED GAUGES ALONG BRUSH CREEK INDICATE THAT THE CREEK IS 
BEGINNING TO SLOWLY RECEDE.  HOWEVER...ANOTHER EXTENSIVE AREA OF 
THUNDERSTORMS FROM DOWNTOWN KANSAS CITY...SOUTHWEST TO OLATHE...WILL 
MOVE EAST AND BACK INTO MUCH OF CLAY AND JACKSON COUNTIES BETWEEN 10 
AND 11 PM.  IF ADDITIONAL HEAVY RAINFALL RESUMES...ALONG THE ORDER 
OF AN ADDITIONAL INCH OR TWO...BRUSH CREEK WILL ONCE AGAIN BEGIN TO 
RISE.

ELSEWHERE...HIGHWAY 24 WAS REPORTED WEST OF BUCKNER...AND FLOODING 
STILL CONTINUES ALONG WARD PARKWAY.  MANY OTHER LOCATIONS TYPICALLY 
PRONE TO FLOODING IN HEAVY RAIN ARE ALSO REPORTED UNDER WATER.  THE 
DOWNTOWN AIRPORT HAS RECEIVED 3.74 INCHES OF RAIN SINCE 7 PM...WITH 
RADAR INDICATIONS OF 4 TO 5 INCHES OF RAINFALL ALONG THE MISSOURI 
RIVER.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE 
ROADWAY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED 
QUICKLY. MOVE TO HIGHER GROUND.  REMEMBER...TURN AROUND AND DONT 
DROWN.

LAT...LON 3939 9460 3890 9456 3891 9421 3942 9426

$$

HUDSON
000 
WGUS73 KEAX 280406
FFSEAX
MOC047-095-280700-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1106 PM CDT FRI AUG 27 2004

...FLASH FLOOD WARNING CONTINUES UNTIL 145 AM CDT FOR JACKSON AND
CLAY COUNTIES...

BETWEEN 10 AND 11 PM...RAINFALL AMOUNTS IN JACKSON COUNTY WERE 
BETWEEN 1 AND 2 INCHES.  IN THE SAME TIMEFRAME...THE HIGHEST 
RAINFALL AMOUNTS IN CLAY COUNTY WERE IN THE SOUTHERN PART...AND 
AVERAGED AROUND A HALF AN INCH.  

CLAY COUNTY LAW ENFORCEMENT REPORTED THAT RANDOLPH ROAD AND 
NORTHEAST BIRMINGHAM NEAR THE AMERISTAR CASINO WERE CLOSED DUE TO 
WATER OVER THE ROADWAY.  ADDITIONALLY...69 HIGHWAY NEAR MOSBY WAS 
CLOSED DUE TO WATER OVER THE ROAD.

ADDITIONAL RAINFALL AMOUNTS IN JACKSON COUNTY THROUGH 12:30 AM WILL 
BE AROUND ANOTHER INCH.  IN CLAY COUNTY...MOST OF THE RAIN WILL BE 
IN SOUTHERN PORTIONS OF THE COUNTY...AND WILL BE AT LEAST ANOTHER 
HALF AN INCH.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLOODING IS OBSERVED ACT QUICKLY. MOVE UP TO
HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO
FLOODING WHEN WATER BEGINS RISING.

LAT...LON 3933 9425 3888 9416 3888 9458 3940 9458

$$

LVQ
000 
WGUS73 KEAX 280645
FFSEAX
MOC047-095-280715-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
145 AM CDT SAT AUG 28 2004

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR JACKSON AND CLAY
COUNTIES HAS BEEN ALLOWED TO EXPIRE...

WHILE ADDITIONAL RAINFALL WILL OCCUR TONIGHT...RAINFALL AMOUNTS WILL 
NOT BE ENOUGH TO CAUSE ADDITIONAL FLASH FLOODING. EXCESS RUNOFF FROM 
PREVIOUS HEAVY RAIN HAS ENDED OVER THE WARNED AREA...AND STREAMS AND 
CREEKS IN THE WARNED AREA HAVE RECEDED...THUS ENDING THE FLOOD 
THREAT. IF FLOODING HAS BEEN OBSERVED...PLEASE REPORT IT TO YOUR 
LOCAL LAW ENFORCEMENT AGENCY OR TO THE NATIONAL WEATHER SERVICE IN 
PLEASANT HILL.


LAT...LON 3943 9424 3885 9423 3887 9458 3943 9460

$$

LVQ

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 27, 7:12 PM CDTSevere Thunderstorm WarningEAXJackson78 min
Aug 27, 7:28 PM CDTSevere Thunderstorm WarningEAXClay, Ray92 min
Aug 27, 7:33 PM CDTSevere Thunderstorm WarningEAXBuchanan57 min
Aug 27, 7:38 PM CDTSevere Thunderstorm WarningEAXCaldwell67 min
Aug 27, 8:09 PM CDTFlash Flood WarningEAXCaldwell, Daviess, Livingston6 hr
Aug 27, 8:38 PM CDTSevere Thunderstorm WarningEAXCarroll67 min
Aug 27, 8:59 PM CDTFlash Flood WarningEAXPlatte6 hr
Aug 27, 9:20 PM CDTFlash Flood WarningEAXLinn, Macon6 hr
Aug 27, 10:16 PM CDTFlash Flood WarningEAXRay6 hr
Aug 27, 11:15 PM CDTFlash Flood WarningEAXPutnam, Sullivan6 hr
Aug 27, 11:29 PM CDTFlash Flood WarningEAXGrundy6 hr

Nearby

Flash Flood Warnings in Missouri, 2004Every flash flood warning in 2004

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.