FNUS73 KLSX 201419
FWSLSX

SPOT FORECAST FOR MARK TWAIN LAKE...CORPS OF ENGINEERS
NATIONAL WEATHER SERVICE ST LOUIS MO
919 AM CDT WED APR 20 2011

FORECAST IS BASED ON IGNITION TIME OF 0900 CDT ON APRIL 20.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE
NATIONAL WEATHER SERVICE.

.DISCUSSION...
DRY AND COOLER WEATHER IS EXPECTED TODAY AND TONIGHT ACROSS THE REGION.
WINDS TO PERSIST FROM THE NORTHWEST TODAY BEFORE BECOMING LIGHT AND
VARIABLE TONIGHT. WILL SEE NEXT CHANCE FOR THUNDERSTORMS BEGINNING THURSDAY
AFTERNOON THROUGH FRIDAY NIGHT.


.THURSDAY...

SKY/WEATHER.........PARTLY SUNNY THEN BECOMING MOSTLY CLOUDY.
                    SLIGHT CHANCE OF SHOWERS IN THE MORNING. CHANCE
                    OF THUNDERSTORMS IN THE AFTERNOON.
CWR.................50 PERCENT.
LAL.................NO TSTMS UNTIL 1300...THEN 9-15 STRIKES.
TEMPERATURE.........MAX 56.
RH..................MIN 51 PERCENT.
WIND...EYE LEVEL....EAST WIND 2 TO 4 MPH USING A 0.3 WIND FACTOR ADJUSTMENT.
WIND...20 FT........EAST WIND 8 TO 13 MPH. GUSTY AND ERRATIC WINDS
                    EXPECTED NEAR THUNDERSTORMS IN THE AFTERNOON.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2400 FT AGL AT MAX HEATING.
TRANSPORT WIND......SOUTHEAST AROUND 25 MPH.
VENTILATION RATE....FAIR (8154 M 2/S) AT MAX HEATING.

$$

FORECASTER...GKS
REQUESTED BY...ALLEN MEHRER
TYPE OF REQUEST...PRESCRIBED
.TAG 20110420.MARKT.01/LSX