FNUS75 KBYZ 191553
FWSBYZ

SPOT FORECAST FOR RED GRADE PILES RX...USFS
NATIONAL WEATHER SERVICE BILLINGS MT
853 AM MST MON NOV 19 2012

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

.DISCUSSION...
NOT EXPECTING MUCH IN THE WAY OF PRECIPITATION THE NEXT FEW DAYS.
THE MAIN WEATHER CONCERN WILL BE INCREASING RIDGE TOP WINDS
WEDNESDAY AS A COLD FRONT APPROACHES. RIDGE TOP WINDS WILL BECOME
STRONG WEDNESDAY. A COLD FRONT WILL MOVE THROUGH THE AREA LATE
WEDNESDAY AFTERNOON AND EARLY WEDNESDAY EVENING. THIS FRONT WILL
BRING GUSTY NORTHWEST WINDS FOR SEVERAL HOURS AFTER ITS PASSAGE.
MIXING WILL INCREASE WEDNESDAY AHEAD OF THE FRONT. MIXING WILL BE
LIMITED TUESDAY WITH AN INVERSION NEAR RIDGE TOP LEVEL. TWH


.TUESDAY...

SKY/WEATHER.........MOSTLY SUNNY.
MAX TEMPERATURE.....51-56.
MIN HUMIDITY........29-34 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......WEST TO SOUTHWEST WINDS 5 TO 15 MPH GUSTS TO
                    20 MPH.
 RIDGETOP...........WEST 10 TO 20 MPH.
MIXING HEIGHT.......2000 FT AGL.
MIXING WINDS........SOUTHWEST 5 TO 15 MPH.

.WEDNESDAY...

SKY/WEATHER.........MOSTLY SUNNY.
MAX TEMPERATURE.....53-58.
MIN HUMIDITY........27-32 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......WEST TO SOUTHWEST WINDS 10 TO 20 MPH GUSTS TO
                    25 MPH.
 RIDGETOP...........WEST 20 TO 35 MPH.
MIXING HEIGHT.......4000 FT AGL.
MIXING WINDS........SOUTHWEST 15 TO 25 MPH.

$$
FORECASTER...HUMPHREY
REQUESTED BY...JON WARDER
TYPE OF REQUEST...PRESCRIBED
.TAG 20121120.REDGR.01/BYZ