FNUS73 KLSX 091207
FWSLSX

SPOT FORECAST FOR MARK TWAIN LAKE...U.S. ARMY CORPS OF ENGINEERS
NATIONAL WEATHER SERVICE ST LOUIS MO
707 AM CDT MON APR 9 2012

FORECAST IS BASED ON IGNITION TIME OF 1000 CDT ON APRIL 09.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE
NATIONAL WEATHER SERVICE.

.DISCUSSION...
THERE IS A HEIGHTENED FIRE DANGER THIS AFTERNOON FOR RELATIVE
HUMIDITY VALUES FALLING BELOW 25 PERCENT AND SUSTAINED 20FT AGL
WINDS IN THE 10-14 MPH RANGE.  MAIN QUESTION FOR THIS FORECAST IS
HOW DRY THE FUELS ARE.  OBSERVED TEN HOUR DRY FUELS ON SUNDAY AND
FORECAST VALUES FOR TODAY OVER NORTHEAST MISSOURI ARE IN THE 5 TO
8 PERCENT RANGE DESPITE THE RECENT GREEN-UP.  EXTRA CAUTION SHOULD
BE TAKEN.

SIMILAR CONDITIONS ARE EXPECTED ON TUESDAY AFTERNOON.

.REST OF TODAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
LAL.................NO TSTMS.
TEMPERATURE.........53 AT IGNITION...MAX 67.
RH..................43 PERCENT AT IGNITION...MIN 20 PERCENT.
WIND...EYE LEVEL....NORTHWEST WIND AROUND 3 MPH AT IGNITIION...
                    THEN INCREASING TO BETWEEN 4 AND 8 MPH WITH
                    GUSTS AROUND 12 MPH BY NOON.
WIND...20 FT........WINDS NORTHWEST AT 7 MPH AT
                    IGNITION...OTHERWISE NORTHWEST WIND 8 TO 14 MPH
                    WITH GUSTS TO AROUND 25 MPH.
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......2000FT AGL AT IGNITION...
                    6200 FT AGL AT MAX HEATING.
TRANSPORT WIND......NORTHWEST AROUND 17 MPH.
VENTILATION RATE....GOOD (14674 M 2/S) AT MAX HEATING.

$$

FORECASTER...BRITT
REQUESTED BY...ALLEN MEHRER
TYPE OF REQUEST...PRESCRIBED
.TAG 20120409.MARKT.01/LSX