Alert archive / Missouri / Flash Flood Warnings in 2007

Flash Flood Warning 13, NWS Kansas City, MO

May 30, 2007Jackson County, Missouri

NWS Kansas City, MO issued this flash flood warning at May 30, 2007, 5:06 PM CDT for Jackson County, Missouri. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
May 30, 2007, 5:06 PM CDT (22:06 UTC)
Expired
May 30, 2007, 11:00 PM CDT
In force
6 hr
Issued by
NWS Kansas City, MO
Area
Counties, with a storm outline in the text
Flood severity
None

County Jackson County, MO

The radar

The Pleasant Hill radar (KEAX), 27 km from the middle of the area, began a volume at 22:06 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.

The nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 10.1 hours before the alert went out and 112 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 12:00Z on 2007-05-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 170 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 12:00Z on 2007-05-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 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
170 J/kg
Mixed-layer CIN
-15 J/kg
Mixed-layer LCL
569 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
42 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KEAX 302209
FFWEAX
MOC095-310400-
/X.NEW.KEAX.FF.W.0013.070530T2206Z-070531T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
506 PM CDT WED MAY 30 2007

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

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

* UNTIL 1100 PM CDT

* AT 505 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE      
  WARNED AREA...WITH ONE TO TWO INCHES OF ACCUMULATION IN THE PAST   
  HOUR. AREA SPOTTERS AND LAW ENFORCEMENT HAVE INDICATED MANY        
  ROADWAYS COVERED WITH SEVERAL INCHES OF WATER...IN ADDITION TO     
  FLOODED VEHICLES AT A FEW LOW UNDERPASSES.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...BLUE
  SPRINGS...BUCKNER...COURTNEY...GRAIN VALLEY...GREENWOOD...
  INDEPENDENCE...LAKE LOTAWANA...LEES SUMMIT...OAK GROVE...
  RAYTOWN...SUGAR CREEK...LAKE TAPAWINGO...LEVASY...LONE JACK AND
  SIBLEY.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS OCCUR
IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES...
DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING STREAM...
EVEN A SMALL ONE...ON FOOT OR IN A VEHICLE.

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
PLEASANT HILL.

LAT...LON 3914 9445 3897 9448 3884 9448 3884 9413
      3916 9412 3923 9429

$$

21
2 follow-up statements
000 
WGUS73 KEAX 302305
FFSEAX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
602 PM CDT WED MAY 30 2007

MOC095-310400-
/X.CON.KEAX.FF.W.0013.000000T0000Z-070531T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
JACKSON MO-
602 PM CDT WED MAY 30 2007

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR JACKSON COUNTY UNTIL
1100 PM CDT...

AT 601 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THUNDERSTORMS WITH HEAVY RAINFALL HAS MOVED EAST OF THE WARNED 
AREA...HOWEVER RUNOFF FROM THE THUNDERSTORMS 
CONTINUES...PARTICULARLY ACROSS NORTHEAST JACKSON COUNTY. LOW WATER 
CROSSINGS AND FLOOD PRONE UNDERPASSES ARE THE MOST SUSCEPTIBLE AREAS 
FOR FLOODING. 

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO 
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...BLUE 
SPRINGS...BUCKNER...COURTNEY...GRAIN VALLEY...GREENWOOD... 
INDEPENDENCE...LAKE LOTAWANA...LEES SUMMIT...OAK GROVE...RAYTOWN... 
SUGAR CREEK...LAKE TAPAWINGO...LEVASY...LONE JACK AND SIBLEY.

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.

REPORT FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY SO THAT THEY
MAY TAKE APPROPRIATE ACTION TO CLOSE FLOODED ROADWAYS. THEY WILL
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN PLEASANT HILL.

LAT...LON 3914 9445 3897 9448 3884 9448 3884 9413
      3916 9412 3923 9429

$$

21
000 
WGUS73 KEAX 302334
FFSEAX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
632 PM CDT WED MAY 30 2007

MOC095-302347-
/X.CAN.KEAX.FF.W.0013.000000T0000Z-070531T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
JACKSON MO-
632 PM CDT WED MAY 30 2007

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR JACKSON COUNTY IS
CANCELLED...

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. 
MOTORIST SHOULD CONTINUE TO EXERCISE CAUTION AND BE ALERT FOR 
STANDING WATER EARLY THIS EVENING AT LOW WATER CROSSINGS AND 
UNDERPASSES PRONE TO HIGH WATER.

LAT...LON 3914 9445 3897 9448 3884 9448 3884 9413
      3916 9412 3923 9429

$$

21

The office that day

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

IssuedProductOfficeCountiesLasted
May 30, 3:25 PM CDTFlash Flood WarningEAXClay6 hr
May 30, 3:25 PM CDTFlash Flood WarningEAXDaviess6 hr

Nearby

Flash Flood Warnings in Missouri, 2007Every flash flood warning in 2007

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; radar from the NEXRAD Level II archive.