Alert archive / Missouri / Flash Flood Warnings in 2005

Flash Flood Warning 11, NWS St. Louis, MO

August 18, 2005Moniteau County, Missouri

NWS St. Louis, MO issued this flash flood warning at Aug 18, 2005, 5:40 AM CDT for Moniteau 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: Aug 18, 2005, 5:40 AM CDT (10:40 UTC)
Expired: Aug 18, 2005, 9:45 AM CDT
In force: 4 hr
Issued by: NWS St. Louis, MO
Area: Counties, with a storm outline in the text

County Moniteau County, MO

The radar

The Pleasant Hill radar (KEAX), 148 km from the middle of the area, began a volume at 10:44 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

Springfield, MO (KSGF), launched 00:00Z, 10.7 hours before the alert went out and 224 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: 1055 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 1185 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 34 m²/s²
0-3 km storm-relative helicity: 80 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.2

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KLSX 181045
FFWLSX
MOC135-181445-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
540 AM CDT THU AUG 18 2005

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  MONITEAU COUNTY IN CENTRAL MISSOURI

* UNTIL 945 AM CDT

* AT 539 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  FLASH FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA.

* FLASH FLOODING CAN BE EXPECTED ACROSS THE AREA...AND WILL BE       
  AFFECTING AREAS MAINLY WEST OF CALIFORNIA.

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.  AREAS ESPECIALLY HARD HIT WILL BE 
SOUTH OF CLARKSBURG AND WEST OF CALIFORNIA ALONG US ROUTE 50.  THE 
NORTH MORAEAU CREEK IS EXPECTED TO RISE RAPIDLY AND WILL BE A FLASH 
FLOODING RISK. COUNTY ROADS E AND H AND BB WILL BE ESPECIALLY 
SUSCEPTIBLE TO FLOODING THIS MORNING. 

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. TO ESCAPE RISING WATER MOVE UP TO HIGHER
GROUND.

LAT...LON 3868 9263 3891 9250 3886 9248 3881 9240
      3875 9242 3872 9240 3843 9250 3843 9258
      3844 9263 3858 9282 3868 9284

$$

CARNEY

2 follow-up statements

000 
WGUS73 KLSX 181230
FFSLSX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
720 AM CDT THU AUG 18 2005

MOC135-181445-
MONITEAU MO-
720 AM CDT THU AUG 18 2005

...A FLASH FLOOD WARNING CONTINUES UNTIL 945 AM CDT FOR MONITEAU
COUNTY...

AT 718 AM CDT...DOPPLER RADAR ESTIMATES SHOW 3 TO 4 INCHES OF RAIN
HAS FALLEN IN WESTERN PORTIONS OF THE COUNTY NEAR TIPTON. HIGHWAY
B 1/2 MILE NORTH OF TIPTON IS CLOSED DUE TO FLOODING.  HIGHWAY BB
4 MILES SOUTHEAST OF TIPTON HAS 4 FEET OF WATER OVER THE LOW WATER
BRIDGE THERE. ROADS IN TIPTON ARE FLOODED AND TRAFFIC IS HAVING 
MAJOR DIFFICULTY GETTING THROUGH.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO JAMESTOWN
AND TIPTON.

ADDITIONAL RAINFALL AMOUNTS OF ONE HALF TO ONE INCH WILL BE POSSIBLE
THROUGH 830AM.  IN ADDITION...MORE STORMS HAVE FORMED EST OF KANSAS
CITY AND MAY MOVE INTO THE AREA AROUND 930AM.

FLOOD WATERS ARE MOVING DOWN KELLY CREEK...WILLOW FORK...SMILEY 
CREEK AND OTHER CREEKS AND TRIBUTARIES IN THE AREA. LOCAL RESIDENTS 
SAY THAT KELLY CREEK ON HIGHWAY BB IS AS HIGH AS IN 1993.

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

LAT...LON 3868 9263 3891 9250 3886 9248 3881 9240
      3875 9242 3872 9240 3843 9250 3843 9258
      3844 9263 3858 9282 3868 9284

$$

PEDIGO/CARNEY

000 
WGUS73 KLSX 181448
FFSLSX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
945 AM CDT THU AUG 18 2005

MOC135-181455-
MONITEAU MO-
945 AM CDT THU AUG 18 2005

...THE FLASH FLOOD WARNING FOR MONITEAU COUNTY HAS EXPIRED...

THE HEAVIEST RAINS MOVED OUT OF MONITEAU COUNTY SHORTLY AFTER 8 AM 
THIS MORNING...AND LAW ENFORCEMENT IN THE AREA NOW REPORTS THAT THE 
FLOOD WATERS OF EARLIER THIS MORNING HAVE RECEDED.  

A FEW VERY LIGHT SHOWERS ARE STILL POSSIBLE...BUT THE THREAT OF 
HEAVY RAINFALL HAS ENDED. 

LAT...LON 3868 9263 3891 9250 3886 9248 3881 9240
      3875 9242 3872 9240 3843 9250 3843 9258
      3844 9263 3858 9282 3868 9284

$$

TRUETT

The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 18, 6:44 AM CDT	Severe Thunderstorm Warning	LSX	Franklin	42 min
Aug 18, 3:30 PM CDT	Heat Advisory	LSX	Boone, Callaway, Cole, Franklin, Gasconade, Jefferson and 7 more	28 hr

Nearby

Flash Flood Warnings in Missouri, 2005 Every flash flood warning in 2005

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.