Alert archive / Missouri / Flash Flood Warnings in 2004

Flash Flood Warning 56, NWS Kansas City, MO

August 27, 2004Linn County, Macon County, Missouri

NWS Kansas City, MO issued this flash flood warning at Aug 27, 2004, 9:20 PM CDT for Linn County, Macon County, Missouri. It was in force for 6 hr. 5 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 27, 2004, 9:20 PM CDT (02:20 UTC)
Expired
Aug 28, 2004, 3:15 AM CDT
In force
6 hr
Issued by
NWS Kansas City, MO
Area
Counties, with a storm outline in the text

Counties Linn County, MO, Macon County, MO

The radar

The Pleasant Hill radar (KEAX), 177 km from the middle of the area, began a volume at 02:20 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 27, 9:45 PM CDTFLASH FLOODAtlanta, MOROUTE J CLOSED DUE TO WATER OVER THE ROADWAY.
Aug 27, 9:45 PM CDTFLASH FLOODMacon, MOROUTE PP AND DD CLOSED DUE TO WATER OVER ROADWAY.
Aug 27, 9:45 PM CDTFLASH FLOODNew Cambria, MOHIGHWAY 36 CLOSED NEAR NEW CAMBRIA DUE TO WATER OVER ROADWAY.
Aug 27, 9:50 PM CDTFLASH FLOODBrookfield, MOHIGHWAY 36 CLOSED BETWEEN BROOKFIELD AND CHILLICOTHE. HALF OF THE ROADS IN BROOKFIELD ARE CLOSED.
Aug 27, 10:01 PM CDTFLASH FLOODBrookfield, MOWATER COVERING THE ROADWAY ALONG ROUTES P, M, B AND HIGHWAY 36.

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, 2.3 hours before the alert went out and 270 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 2004-08-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3473 joules per kilogram.LCLEL10008507005003002001001 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 2004-08-28The 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
3473 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
1317 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
50 m²/s²
0-3 km storm-relative helicity
229 m²/s²
Significant tornado parameter
2.8
Supercell composite
28.1

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KEAX 280220
FFWEAX
MOC115-121-280815-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
920 PM CDT FRI AUG 27 2004

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

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

* UNTIL 315 AM CDT

* AT 910 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS WITH VERY HEAVY RAINFALL CONTINUING TO DEVELOP
  AND TRACK ALONG HIGHWAY 36.  SINCE 6 PM...1 TO 2 INCHES OF RAIN
  HAS FALLEN...WITH HOURLY RAINFALL RATES OF UP TO 2 INCHES RAIN
  EXPECTED FOR THE NEXT SEVERAL HOURS.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  ANABEL...ATLANTA...AXTELL...BROOKFIELD...BUCKLIN...CALLAO...
  ELMER...ETHEL...GOLDSBERRY...LA PLATA...LINNEUS AND LONG BRANCH
  STATE PARK.  COAL...LITTLE TURKEY...ELK AND EAST YELLOW CREEKS
  IN LINN COUNTY...WITH BRUSH...PUZZLE AND TRIBUTARIES OF THE CHARITON
  RIVER IN MACON COUNTY.

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.

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.

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 4002 9239 3988 9231 3964 9236 3964 9266
      3972 9268 3975 9334 4003 9335

$$

SF
1 follow-up statement
000 
WGUS73 KEAX 280435
FFSEAX
MOC115-121-280830-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1135 PM CDT FRI AUG 27 2004

...FLASH FLOOD WARNING CONTINUES UNTIL 315 AM CDT FOR LINN AND 
MACON COUNTIES...

BETWEEN 9 AND 11 PM...RAINFALL AMOUNTS IN LINN AND MACON COUNTY  
AVERAGED 2 INCHES.  

DUE TO WATER OVER THE ROADS...LAW ENFORCEMENT REPORTED THAT IN 
ATLANTA ROUTE J WAS CLOSED...IN MACON ROUTES PP AND DD WERE 
CLOSED...AND IN NEW CAMBRIA HIGHWAY 36 WAS CLOSED.  IN BROOKFIELD... 
WATER COVERED THE ROADWAY ALONG ROUTES P...M...B...AND HIGHWAY 36.

RAINFALL AMOUNTS THROUGH 1 AM WILL TAPER OFF SOMEWHAT. AN ADDITIONAL 
HALF TO THREE QUARTERS OF AN INCH IS POSSIBLE...WITH THE HIGHEST 
AMOUNTS IN SOUTHEAST MACON COUNTY.  

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

LAT...LON 4000 9242 3969 9237 3973 9332 4001 9332

$$

LVQ

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 27, 7:12 PM CDTSevere Thunderstorm WarningEAXJackson78 min
Aug 27, 7:28 PM CDTSevere Thunderstorm WarningEAXClay, Ray92 min
Aug 27, 7:33 PM CDTSevere Thunderstorm WarningEAXBuchanan57 min
Aug 27, 7:38 PM CDTSevere Thunderstorm WarningEAXCaldwell67 min
Aug 27, 7:39 PM CDTFlash Flood Warning EmergencyEAXClay, Jackson6 hr
Aug 27, 8:09 PM CDTFlash Flood WarningEAXCaldwell, Daviess, Livingston6 hr
Aug 27, 8:38 PM CDTSevere Thunderstorm WarningEAXCarroll67 min
Aug 27, 8:59 PM CDTFlash Flood WarningEAXPlatte6 hr
Aug 27, 10:16 PM CDTFlash Flood WarningEAXRay6 hr
Aug 27, 11:15 PM CDTFlash Flood WarningEAXPutnam, Sullivan6 hr
Aug 27, 11:29 PM CDTFlash Flood WarningEAXGrundy6 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.