Alert archive / Missouri / Flash Flood Warnings in 2006

Flash Flood Warning 13, NWS Kansas City, MO

August 8, 2006Gentry County, Harrison County, Worth County, Missouri

NWS Kansas City, MO issued this flash flood warning at Aug 8, 2006, 4:02 AM CDT for Gentry County, Harrison County, Worth County, Missouri. It was in force for 6 hr. 2 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 8, 2006, 4:02 AM CDT (09:02 UTC)
Expired
Aug 8, 2006, 10:00 AM CDT
In force
6 hr
Issued by
NWS Kansas City, MO
Area
Counties, with a storm outline in the text

Counties Gentry County, MO, Harrison County, MO, Worth County, MO

The radar

The Des Moines radar (KDMX), 154 km from the middle of the area, began a volume at 09:02 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 8, 7:53 AM CDTHEAVY RAIN 2.77Albany, MO2.50 OF THAT HAS FALLEN IN THE PAST 3 HOURS.
Aug 8, 7:53 AM CDTHEAVY RAIN 3.034 W Worth, MO

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, 9.0 hours before the alert went out and 200 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 2006-08-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2408 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 2006-08-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 18 square meters per square second.1939Sfc1 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
2408 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
1676 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
18 m²/s²
0-3 km storm-relative helicity
115 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.7

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KEAX 080909
FFWEAX
MOC075-081-227-081500-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
402 AM CDT TUE AUG 8 2006

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  HARRISON COUNTY IN NORTH CENTRAL MISSOURI
  NORTHERN GENTRY COUNTY IN NORTHWEST MISSOURI
  WORTH COUNTY IN NORTHWEST MISSOURI

* UNTIL 1000 AM CDT

* AT 400 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  SLOW MOVING THUNDERSTORMS PRODUCING TORRENTIAL HEAVY RAINFALL 
  ACROSS THE WARNED AREA. DOPPLER RADAR ESTIMATED THAT TWO TO 
  THREE INCHES OF RAIN HAS FALLEN SINCE 10 PM. THIS IS ON TOP
  OF ONE TO LOCALLY TWO INCHES THAT FELL OVER MUCH OF THE SAME
  AREA MONDAY MORNING.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  ALBANY...BETHANY...CAINSVILLE...EAGLEVILLE...GILMAN CITY...GRANT
  CITY...NEW HAMPTON AND RIDGEWAY.

ADDITIONAL RAINFALL AMOUNTS OF ONE TO TWO INCHES ARE EXPECTED AS 
SLOW MOVING THUNDERSTORMS CONTINUE TO AFFECT HARRISON...WORTH AND 
GENTRY COUNTIES THROUGH 6 AM. THIS EXCESSIVE RAINFALL WILL LEAD TO 
FLASH FLOODING. PERSONS AROUND THE GRAND AND THOMPSON RIVERS...AND 
THEIR CREEKS AND TRIBUTARIES SHOULD TAKE IMMEDIATE ACTION.

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

LAT...LON 4058 9378 4013 9376 4014 9423 4025 9461
      4058 9464

$$

BOOKBINDER
3 follow-up statements
000 
WGUS73 KEAX 081117
FFSEAX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 
617 AM CDT TUE AUG 8 2006

MOC075-081-227-081500-
HARRISON MO-WORTH MO-GENTRY MO-
617 AM CDT TUE AUG 8 2006

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR HARRISON...NORTHERN
GENTRY AND WORTH COUNTIES UNTIL 1000 AM CDT...

AT 607 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THUNDERSTORMS WITH TORRENTIAL RAINFALL ACROSS THE WARNED AREA. 
DOPPLER RADAR ESTIMATES AND RAIN GAUGE OBSERATIONS INDICATE THAT TWO 
TO THREE INCHES OF RAIN HAS FALLEN SINCE 10 PM...IN ADDITION TO 
HEAVY RAINFALL THAT FELL OVER THE SAME REGION MONDAY MORNING. 

SLOW MOVING THUNDERSTORMS WILL CONTINUE TO PRODUCE PERIODS OF HEAVY 
RAINFALL THROUGH AT LEAST 9 AM...WITH ADDITIONAL AMOUNTS OF ONE TO 
TWO INCHES LIKELY.  RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE 
FLASH FLOODING TO OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE 
FLOODING INCLUDE...ALBANY...BETHANY...CAINSVILLE...EAGLEVILLE... 
GILMAN CITY...GRANT CITY...NEW HAMPTON AND RIDGEWAY. PERSONS LIVING 
ALONG CREEKS AND TRIBUTARIES OF THE GRAND AND THOMPSON RIVERS SHOULD 
MOVE TO HIGHER GROUND IMMEDIATELY.

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 4058 9378 4013 9376 4014 9423 4025 9461
      4058 9464

$$

BOOKBINDER
000 
WGUS73 KEAX 081427
FFSEAX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
918 AM CDT TUE AUG 8 2006

MOC075-081-227-081500-
HARRISON MO-WORTH MO-GENTRY MO-
918 AM CDT TUE AUG 8 2006

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR HARRISON...NORTHERN
GENTRY AND WORTH COUNTIES UNTIL 1000 AM CDT...

AT 918 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AN 
AREA OF PERSISTENT RAINFALL ACROSS THE WARNED AREA. COOP OBSERVERS 
REPORTED BETWEEN 2 AND 4 INCHES OF RAIN FELL OVER THE AREA SINCE 
LATE LAST NIGHT. UP TO AN ADDITIONAL HALF INCH OF RAIN IS EXPECTED 
FROM WORTH AND GRANT CITY TO BETHANY AND MOUNT MORIAH BY 11 AM.   

POCKETS OF BRIEF HEAVY RAIN CONTINUE TO FALL ACROSS THE WARNED AREA. 
RUNOFF FROM THIS RAINFALL WILL CAUSE FLASH FLOODING TO OCCUR. SOME 
LOCATIONS THAT MAY EXPERIENCE FLOODING INCLUDE...BETHANY... 
CAINSVILLE...EAGLEVILLE...GRANT CITY...NEW HAMPTON AND RIDGEWAY.

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.

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

LAT...LON 4058 9378 4013 9376 4014 9423 4025 9461
      4058 9464

$$

MJ
000 
WGUS73 KEAX 081502
FFSEAX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1000 AM CDT TUE AUG 8 2006

MOC075-081-227-081511-
HARRISON MO-WORTH MO-GENTRY MO-
1000 AM CDT TUE AUG 8 2006

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR HARRISON...NORTHERN
GENTRY AND WORTH 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.

LAT...LON 4058 9378 4013 9376 4014 9423 4025 9461
      4058 9464

$$

MJ

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 7, 8:26 PM CDTSevere Thunderstorm WarningEAXSaline34 min
Aug 8, 5:23 PM CDTSevere Thunderstorm WarningEAXChariton, Saline47 min

Nearby

Flash Flood Warnings in Missouri, 2006Every flash flood warning in 2006

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.