Alert archive / Missouri / Flash Flood Warnings in 2004

Flash Flood Warning 10, NWS Kansas City, MO

May 19, 2004Johnson County, Missouri

NWS Kansas City, MO issued this flash flood warning at May 19, 2004, 6:45 AM CDT for Johnson 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: May 19, 2004, 6:45 AM CDT (11:45 UTC)
Expired: May 19, 2004, 12:45 PM CDT
In force: 6 hr
Issued by: NWS Kansas City, MO
Area: Counties, with a storm outline in the text

County Johnson County, MO

The radar

The Pleasant Hill radar (KEAX), 37 km from the middle of the area, began a volume at 11:48 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

Time	Report	Where	Remark
May 19, 6:45 AM CDT	FLASH FLOOD	1 N Holden, MO	SW100TH AND SW200TH ROAD AT PIN OAK CREEK FLOODED. FLOODING BEGAN AROUND 330 AM. UPDATED TIME OF FLOODING.

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

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 11.8 hours before the alert went out and 203 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: 1439 J/kg
Mixed-layer CIN: -11 J/kg
Mixed-layer LCL: 1070 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 99 m²/s²
0-3 km storm-relative helicity: 317 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 6.1

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KEAX 191146
FFWEAX
MOC101-191745-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
645 AM CDT WED MAY 19 2004

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  JOHNSON COUNTY IN WEST CENTRAL MISSOURI

* UNTIL 1245 PM CDT

* AT 636 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA.

* SLOW MOVING THUNDERSTORMS ARE PRODUCING TORRENTIAL RAINFALL IN THE 
  WARNED AREA. DOPPLER RADAR RAINFALL ESTIMATED 1.5 TO 2.5 INCHES OF 
  RAIN HAS FALLEN SINCE 5 AM FROM KINGSVILLE TO CORNELIA. RUNOFF     
  FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH   FLOODING TO OCCUR. 
  SOME LOCATIONS THAT WILL EXPERIENCE FLOODING
  INCLUDE...WARRENSBURG...CENTERVIEW...CHILHOWEE...COLUMBUS...  
  FAYETTEVILLE...HOLDEN...KNOB NOSTER...LA TOUR...LEETON...         
  PITTSVILLE...WHITEMAN AFB AND KINGSVILLE.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE 
BANKS OF CREEKS AND STREAMS. AN ADDITIONAL 1 TO 2 INCHES OF RAIN
IS EXPECTED THROUGH 9 AM...FURTHER AGGRAVATING THE FLOODING 
POTENTIAL.

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 3858 9411 3858 9411 3880 9413 3891 9411
      3890 9384 3893 9383 3892 9351 3864 9353
      3860 9351 3856 9353

$$

SF

1 follow-up statement

000 
WGUS73 KEAX 191340
FFSEAX
MOC101-191745-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
837 AM CDT WED MAY 19 2004

...FLASH FLOOD WARNING CONTINUES UNTIL 1245 PM CDT FOR JOHNSON
COUNTY...

AT 825 AM CDT...EMERGENCY MANAGEMENT OFFICIALS REPORTED 
THAT ROAD CLOSURES WERE IMMINENT NORTH OF HOLDEN WHERE SW 100TH AND 
200TH ROADS CROSS PIN OAK CREEK.  THE SHERIFFS OFFICE ALSO REPORTED 
THAT NUMEROUS RURAL ROADS WERE CLOSED SOUTH OF HIGHWAY 2 NEAR QUICK 
CITY. 

THE THUNDERSTORMS THAT PRODUCED 2 TO 4 INCHES OF RAIN FROM HOLDEN
TO CORNELIA BETWEEN 5 AM AND 8 AM HAVE MOVED EAST OF THE AREA...WITH 
ONLY SCATTERED SHOWERS REMAINING FROM CHILHOWEE TO LEETON. A FEW
ISOLATED SHOWERS WILL LINGER THROUGH 10 AM...BUT NO ADDITIONAL
HEAVY RAINFALL IS EXPECTED.  EXCESSIVE RUNOFF FROM THESE TORRENTIAL
RAINS WILL CONTINUE THE THREAT OF FLOODING OF SMALL CREEKS AND 
STREAMS...COUNTRY ROADS...AND NORMALLY DRY WASHES...AS WELL AS 
FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS.

REPORT FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY SO THAT THEY
MAY TAKE APPROPRIATE ACTION TO CLOSE FLOODED ROADWAYS.

LAT...LON 3888 9352 3856 9354 3858 9410 3890 9409

$$

SF

The office that day

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

Issued	Product	Office	Counties	Lasted
May 18, 9:22 PM CDT	Severe Thunderstorm Warning	EAX	Cass	53 min
May 18, 10:41 PM CDT	Flash Flood Warning	EAX	Cass	6 hr
May 18, 11:11 PM CDT	Severe Thunderstorm Warning	EAX	Pettis, Saline	94 min
May 19, 12:48 AM CDT	Severe Thunderstorm Warning	EAX	Bates, Cass	72 min
May 19, 2:24 AM CDT	Severe Thunderstorm Warning	EAX	Bates	36 min
May 19, 2:32 AM CDT	Severe Thunderstorm Warning	EAX	Cass	58 min
May 19, 3:09 AM CDT	Flash Flood Warning	EAX	Bates, Henry	6 hr
May 19, 3:25 AM CDT	Flash Flood Warning	EAX	Clay, Jackson, Platte	6 hr
May 19, 4:36 AM CDT	Flash Flood Warning	EAX	Cass	6 hr

Nearby

Flash Flood Warnings in Missouri, 2004 Every 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.