FNUS73 KLSX 051539
FWSLSX

SPOT FORECAST FOR WASHINGTON SP...MISSOURI DEPARTMENT OF NATURAL RESOURCES
NATIONAL WEATHER SERVICE ST LOUIS MO
939 AM CST THU JAN 5 2012

FORECAST IS BASED ON IGNITION TIME OF 1100 CST ON JANUARY 05.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE
NATIONAL WEATHER SERVICE.

.DISCUSSION...
SOUTHWEST FLOW WILL PREVAIL ACROSS THE AREA TODAY.  AS A RESULT...
TEMPERATURES WILL RISE TO 15 TO 25 DEGREES ABOVE NORMAL.  AFTERNOON
RELATIVE HUMIDITY LEVELS WILL FALL TO BETWEEN 30 AND 35 PERCENT ACROSS
MUCH OF THE REGION AS WELL.  THE WARM AND DRY WEATHER HAS RESULTED
IN 10 HOUR FUEL MOISTURE FALLING TO BETWEEN 7 AND 8 PERCENT.

SIMILAR CONDITIONS WILL PREVAIL ON FRIDAY BEFORE A COLD FRONT MOVES
THROUGH LATE IN THE DAY.  COOLER WEATHER WITH A LIGHT NORTHWEST WIND
WILL PREVAIL ON SATURDAY BEHIND THE FRONT...THOUGH TEMPERATURES WILL
STILL BE AROUND 10 DEGREES ABOVE NORMAL.

.REST OF TODAY...

SKY/WEATHER.........SUNNY.
TEMPERATURE.........50 AT IGNITION...MAX 62.
RH..................48 PERCENT AT IGNITION...MIN 31 PERCENT.
WIND...EYE LEVEL....2 TO 3 MPH USING 0.3 REDUCTION FACTOR FOR
                    PARTIALLY SHELTERED FUELS.
WIND...20 FT........WINDS WEST AT 8 MPH AT IGNITION...OTHERWISE
                    SOUTHWEST WIND 8 TO 9 MPH.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......700 FT AGL AT IGNITION...1500 FT AGL AT MAX HEATING.
TRANSPORT WIND......WEST AROUND 23 MPH.
VENTILATION RATE....POOR (4713 M 2/S) AT MAX HEATING.

.TONIGHT...

SKY/WEATHER.........CLEAR.
TEMPERATURE.........MIN 40.
RH..................MAX 75 PERCENT.
WIND...EYE LEVEL....2 MPH USING 0.3 REDUCTION FACTOR.
WIND...20 FT........SOUTHWEST WIND 7 TO 8 MPH.
HAINES INDEX........N/A.
MIXING HEIGHT.......N/A.
TRANSPORT WIND......N/A.
VENTILATION RATE....N/A.

.FRIDAY...

SKY/WEATHER.........MOSTLY SUNNY.
TEMPERATURE.........MAX 62.
RH..................MIN 42 PERCENT.
WIND...EYE LEVEL....2 TO 3 MPH USING 0.3 REDUCTION FACTOR.
WIND...20 FT........WEST WIND 8 TO 10 MPH DECREASING TO AROUND 7
                    MPH LATE IN THE AFTERNOON.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......2200 FT AGL AT MAX HEATING.
TRANSPORT WIND......WEST AROUND 30 MPH.
VENTILATION RATE....FAIR (8861 M 2/S) AT MAX HEATING.

$$

FORECASTER...MILLER
REQUESTED BY...JAMIE HUBERT
TYPE OF REQUEST...PRESCRIBED
.TAG 20120105.WASHI.01/LSX