Alert archive / Missouri / Flash Flood Warnings in 2004

Flash Flood Warning 63, NWS Kansas City, MO

September 18, 2004Clay County, Jackson County, Missouri

NWS Kansas City, MO issued this flash flood warning at Sep 18, 2004, 4:51 AM CDT for Clay County, Jackson County, Missouri. It was in force for 6 hr. 1 report 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
Sep 18, 2004, 4:51 AM CDT (09:51 UTC)
Expired
Sep 18, 2004, 10:45 AM CDT
In force
6 hr
Issued by
NWS Kansas City, MO
Area
Counties, with a storm outline in the text

Counties Clay County, MO, Jackson County, MO

The radar

The Pleasant Hill radar (KEAX), 42 km from the middle of the area, began a volume at 09:55 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
Sep 18, 5:50 AM CDTFLASH FLOODLiberty, MOFLASH FLOODING REPORTED ALONG OLD HIGHWAY 210 BETWEEN BLUFF ROAD AND RAINES ROAD.

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, 9.9 hours before the alert went out and 111 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 2004-09-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3 joules per kilogram.LCLLFCEL10008507005003002001001 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 2004-09-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 191 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
3 J/kg
Mixed-layer CIN
-819 J/kg
Mixed-layer LCL
1757 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
191 m²/s²
0-3 km storm-relative helicity
408 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.9

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KEAX 180952
FFWEAX
MOC047-095-181545-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
451 AM CDT SAT SEP 18 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 1045 AM CDT

* AT 450 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA.

* THUNDERSTORMS ARE PRODUCING TORRENTIAL RAINFALL IN THE WARNED AREA.
  RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  AVONDALE...BLUE SPRINGS...EXCELSIOR SPRINGS...GLADSTONE...GRAIN
  VALLEY...GRANDVIEW...INDEPENDENCE...KEARNEY...LAKE LOTAWANA...LEES
  SUMMIT...LIBERTY AND LONE JACK

ADDITIONAL RAINFALL AMOUNTS UP TO AN INCH ARE POSSIBLE IN THE WARNED 
AREA THROUGH 7 AM.

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.

LAT...LON 3942 9425 3914 9423 3886 9415 3886 9459
      3910 9455 3942 9460

$$
LVQ
5 follow-up statements
000 
WGUS73 KEAX 181225
FFSEAX
MOC047-095-181545-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
724 AM CDT SAT SEP 18 2004

...FLASH FLOOD WARNING CONTINUES FOR CLAY AND JACKSON COUNTIES UNTIL
1045 AM CDT...

AT 724 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THUNDERSTORMS WITH VERY HEAVY RAINFALL CONTINUED ACROSS THE WARNED 
AREA. DOPPLER RADAR ESTIMATED MORE THAN 2 INCHES OF RAIN HAS FALLEN 
ACROSS CENTRAL AND EASTERN PORTIONS OF CLAY AND JACKSON COUNTY.

SLOW MOVING THUNDERSTORMS ARE STILL PRODUCING VERY HEAVY RAINFALL IN 
THE WARNED AREA. RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH
FLOODING TO OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING 
INCLUDE...BLUE SPRINGS...EXCELSIOR SPRINGS...GLADSTONE...GRAIN 
VALLEY...INDEPENDENCE...KEARNEY...LAKE LOTAWANA...LEES 
SUMMIT...LIBERTY AND LONE JACK.

THE FLOODING PROBLEMS SHOULD MOSTLY BE OCCUR IN THE CENTRAL AND 
EASTERN PORTIONS OF CLAY AND JACKSON COUNTIES...WHERE THE MAJORITY 
OF THE RAINFALL HAS OCCURRED.

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.

LAT...LON 3942 9425 3914 9423 3886 9415 3886 9459
      3910 9455 3942 9460

$$

LVQ
000 
WGUS73 KEAX 181236
FFSEAX
MOC047-095-181545-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
735 AM CDT SAT SEP 18 2004

...FLASH FLOOD WARNING CONTINUES FOR CLAY AND JACKSON COUNTIES UNTIL
1045 AM CDT...

AT 735 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THUNDERSTORMS WITH VERY HEAVY RAINFALL CONTINUED ACROSS THE WARNED 
AREA. DOPPLER RADAR ESTIMATED MORE THAN 2 INCHES OF RAIN HAS FALLEN 
ACROSS CENTRAL AND EASTERN PORTIONS OF CLAY AND JACKSON COUNTY.

SLOW MOVING THUNDERSTORMS ARE STILL PRODUCING VERY HEAVY RAINFALL IN 
THE WARNED AREA. RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH
FLOODING TO OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING 
INCLUDE...BLUE SPRINGS...EXCELSIOR SPRINGS...GLADSTONE...GRAIN 
VALLEY...INDEPENDENCE...KEARNEY...LAKE LOTAWANA...LEES 
SUMMIT...LIBERTY AND LONE JACK.

THE FLOODING PROBLEMS SHOULD MOSTLY BE OCCUR IN THE CENTRAL AND 
EASTERN PORTIONS OF CLAY AND JACKSON COUNTIES...WHERE THE MAJORITY 
OF THE RAINFALL HAS OCCURRED.

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.

LAT...LON 3942 9425 3914 9423 3886 9415 3886 9459
      3910 9455 3942 9460

$$

LVQ
000 
WGUS73 KEAX 181459
FFSEAX
MOC047-095-181545-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
ISSUED BY NWS SPRINGFIELD MO
958 AM CDT SAT SEP 18 2004

...FLASH FLOOD WARNING CONTINUES FOR CLAY AND JACKSON COUNTIES UNTIL
1045 AM CDT...

AT 950 AM CDT...DOPPLER RADAR INDICATED THAT RAINFALL HAD DIMINISHED 
OVER CLAY AND JACKSON COUNTIES. LOCAL LAW ENFORCEMENT REPORTED SOME 
MINOR FLOODING CONTINUED IN LOW LYING AREAS OF CLAY AND JACKSON COUNTIES

SOME LOCATIONS THAT WILL CONTINUE TO EXPERIENCE FLOODING INCLUDE LOW 
LYING AREAS AROUND BLUE SPRINGS...CLAYCOMO...EXCELSIOR 
SPRINGS...GLADSTONE...GRAIN VALLEY... GRANDVIEW...I 
INDEPENDENCE...KEARNEY...LAKE LOTAWANA...LEES SUMMIT...LIBERTY AND 
PLEASANT VALLEY.

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. 

$$

TERRY
000 
WGUS73 KEAX 181549
FFSEAX
MOC047-095-181545-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
ISSUED BY NWS SPRINGFIELD MO
1048 AM CDT SAT SEP 18 2004

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

EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS
AND CREEKS IN THE WARNED AREA HAVE RECEDED OR WERE BEGINNING TO
RECEDE...ENDING THE FLOOD THREAT. IF FLOODING HAS BEEN OBSERVED...
PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.

$$

TERRY
000 
WGUS73 KEAX 181550 CCA
FFSEAX
MOC047-095-181545-

FLASH FLOOD STATEMENT...CORRECTION
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
ISSUED BY NWS SPRINGFIELD MO
1048 AM CDT SAT SEP 18 2004

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

EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS
AND CREEKS IN THE WARNED AREA HAVE RECEDED OR WERE BEGINNING TO
RECEDE...ENDING THE FLOOD THREAT. IF FLOODING HAS BEEN OBSERVED...
PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.

$$

TERRY

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 17, 10:38 PM CDTSevere Thunderstorm WarningEAXPlatte67 min
Sep 17, 10:45 PM CDTSevere Thunderstorm WarningEAXBuchanan45 min
Sep 17, 11:44 PM CDTFlash Flood WarningEAXPlatte6 hr
Sep 17, 11:46 PM CDTSevere Thunderstorm WarningEAXClay, Platte74 min
Sep 18, 12:08 AM CDTFlash Flood WarningEAXAndrew, Clinton, DeKalb6 hr
Sep 18, 12:13 AM CDTSevere Thunderstorm WarningEAXAndrew62 min
Sep 18, 12:16 AM CDTSevere Thunderstorm WarningEAXClinton89 min
Sep 18, 12:31 AM CDTSevere Thunderstorm WarningEAXDeKalb74 min
Sep 18, 1:23 AM CDTSevere Thunderstorm WarningEAXAndrew52 min
Sep 18, 2:03 AM CDTSevere Thunderstorm WarningEAXJackson72 min
Sep 18, 3:11 AM CDTSevere Thunderstorm WarningEAXCass49 min
Sep 18, 8:55 AM CDTFlash Flood WarningEAXPlatte4 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.