Alert archive / Missouri / Flash Flood Warnings in 2008

Flash Flood Warning 39, NWS Kansas City, MO

July 8, 2008Macon County, Missouri

NWS Kansas City, MO issued this flash flood warning at Jul 8, 2008, 2:21 PM CDT for Macon County, Missouri. It was in force for 4 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
Jul 8, 2008, 2:21 PM CDT (19:21 UTC)
Expired
Jul 8, 2008, 6:15 PM CDT
In force
4 hr
Issued by
NWS Kansas City, MO
Area
Storm-based polygon
Flood severity
None

County Macon County, MO

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 7.4 hours before the alert went out and 258 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, Davenport, at 12:00Z on 2008-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 80 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, Davenport, at 12:00Z on 2008-07-08The 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
80 J/kg
Mixed-layer CIN
-136 J/kg
Mixed-layer LCL
700 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
50 m²/s²
0-3 km storm-relative helicity
15 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 081922
FFWEAX
MOC121-090130-
/O.NEW.KEAX.FF.W.0039.080708T1921Z-080709T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
221 PM CDT TUE JUL 8 2008

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEASTERN MACON COUNTY IN NORTH CENTRAL MISSOURI

* UNTIL 830 PM CDT

* AT 214 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE   
  WARNED AREA. RADAR INDICATED THAT MORE THAN 2 INCHES OF RAIN HAD 
  FALLEN IN LESS THAN AN HOUR EAST OF THE TOWN OF MACON IN MACON 
  COUNTY.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...  
  MACON...BEVIER AND CALLAO.

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.

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.

LAT...LON 3981 9228 3979 9227 3978 9228 3965 9229
      3964 9264 3979 9265 3987 9229 3986 9228

$$

BAILEY
2 follow-up statements
000 
WGUS73 KEAX 082129
FFSEAX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
427 PM CDT TUE JUL 8 2008


MOC121-090130-
/O.CON.KEAX.FF.W.0039.000000T0000Z-080709T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MACON MO-
427 PM CDT TUE JUL 8 2008

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR SOUTHEASTERN MACON
COUNTY UNTIL 830 PM CDT...

AT 422 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
FEW ADDITIONAL THUNDERSTORMS WITH HEAVY RAINFALL WERE MOVING ACROSS 
THE WARNED AREA. THESE STORMS WILL BE CAPABLE OF DROPPING AN 
ADDITIONAL INCH OF RAIN IN A SHORT PERIOD OF TIME.

THUNDERSTORMS ARE ONCE AGAIN PRODUCING HEAVY RAINFALL IN THE WARNED 
AREA. RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING 
TO OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING 
INCLUDE...MACON...BEVIER AND CALLAO.


MOST FLOOD RELATED DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO
CROSS BRIDGES...DIPS...OR OTHER LOW SPOTS IF WATER COVERS THE
ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON
FOOT OR IN A VEHICLE.

IN HILLY TERRAIN...THERE ARE HUNDREDS OF LOW WATER CROSSINGS 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 3981 9228 3979 9227 3978 9228 3965 9229
      3964 9264 3979 9265 3987 9229 3986 9228

$$

BAILEY
000 
WGUS73 KEAX 082315
FFSEAX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
612 PM CDT TUE JUL 8 2008

MOC121-082327-
/O.CAN.KEAX.FF.W.0039.000000T0000Z-080709T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MACON MO-
612 PM CDT TUE JUL 8 2008

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

EXCESS RUNOFF FROM THE EARLIER HEAVY RAIN HAS ENDED OVER THE WARNED 
AREA. SHOWERS AND A FEW THUNDERSTORMS WILL CONTINUE TO MOVE ACROSS 
THE AREA THIS EVENING...HOWEVER ADDITIONAL RAINFALL IS EXPECTED TO 
BE LESS THAN AN INCH. STREAMS AND CREEKS IN THE WARNED AREA HAVE 
RECEDED OR WERE BEGINNING TO RECEDE...ENDING THE FLASH FLOOD THREAT. 

IF FLOODING WAS OBSERVED PLEASE RELAY YOUR REPORT TO LOCAL LAW
ENFORCEMENT OR TO THE NATIONAL WEATHER SERVICE IN PLEASANT HILL.

LAT...LON 3981 9228 3979 9227 3978 9228 3965 9229
      3964 9264 3979 9265 3987 9229 3986 9228

$$

MAS

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 8, 5:46 AM CDTFlash Flood WarningEAXSchuyler5 hr
Jul 8, 6:10 AM CDTFlash Flood WarningEAXPutnam6 hr
Jul 8, 12:15 PM CDTFlash Flood WatchEAXBates, Cass, Cooper, Henry, Johnson, Pettis10 hr
Jul 8, 1:20 PM CDTSevere Thunderstorm WarningEAXCass20 min
Jul 8, 1:59 PM CDTAreal Flood AdvisoryEAXJackson48 min
Jul 8, 2:18 PM CDTFlash Flood WarningEAXJackson3 hr
Jul 8, 2:30 PM CDTAreal Flood AdvisoryEAXCarroll, Lafayette, Ray6 hr
Jul 8, 3:09 PM CDTAreal Flood AdvisoryEAXCarroll, Chariton, Saline6 hr
Jul 8, 3:32 PM CDTAreal Flood AdvisoryEAXChariton, Howard, Randolph6 hr
Jul 8, 3:57 PM CDTFlash Flood WarningEAXCarroll, Chariton, Howard, Saline5 hr
Jul 8, 5:23 PM CDTAreal Flood AdvisoryEAXJackson3 hr

Nearby

Flash Flood Warnings in Missouri, 2008Every flash flood warning in 2008

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.