FNUS73 KLSX 091301
FWSLSX

SPOT FORECAST FOR MARK TWAIN LAKE...CORPS OF ENGINEERS
NATIONAL WEATHER SERVICE ST LOUIS MO
701 AM CST FRI JAN 9 2009

FORECAST IS BASED ON IGNITION TIME OF 1100 CST ON JANUARY 09.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE
NATIONAL WEATHER SERVICE.

.DISCUSSION...
SOUTHERLY WINDS WILL MAKE IT AN UNSEASONABLY WARM TODAY ACROSS THE REGION.
THIS SURGE OF WARM AIR WILL BE FOLLOWED BY A STRONG COLD FRONT THAT WILL
PRODUCE A BIT OF RAIN OR SNOW TONIGHT...AND MUCH COLDER TEMPERATURES AND
GUSTY NORTHWEST WINDS ON SATURDAY.  SEVERAL MORE ROUNDS OF COLDER AIR
WILL IMPACT THE AREA NEXT WEEK...MAKING FOR UNSEASONABLY COLD CONDITIONS
AND TEMPERATURES THAT WILL AVERAGE 15 TO 25 DEGREES BELOW NORMAL.

.TODAY...

SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
CWR.................10 PERCENT.
TEMPERATURE.........42 AT IGNITION...MAX 49.
RH..................60 PERCENT AT IGNITION...MIN 50 PERCENT.
WIND...EYE LEVEL....SOUTH WIND 10 TO 15 MPH WITH GUSTS TO 20 MPH SHIFTING
                    TO THE EAST LATE IN THE AFTERNOON.
WIND...20 FT........WINDS SOUTH 10 TO 15 MPH AT IGNITION WITH GUSTS TO 20 MPH.
MIXING HEIGHT.......1000 FT AGL.
TRANSPORT WIND......SOUTHWEST AROUND 25 MPH.
VENTILATION RATE....POOR (3613 M 2/S).

$$

FORECASTER...GKS
REQUESTED BY...ALLEN MEHRER
TYPE OF REQUEST...PRESCRIBED
.TAG 20090109.MARKT.01/LSX