FNUS75 KBYZ 071515
FWSBYZ

SPOT FORECAST FOR BENCH...U.S. FOREST SERVICE
NATIONAL WEATHER SERVICE BILLINGS MT
915 AM MDT MON MAY 7 2012

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

.DISCUSSION...
EXPECT MOSTLY SUNNY SKIES THE NEXT COUPLE OF DAYS. WARMER
TEMPERTURES ARE EXPECTED TOO. WINDS WILL BE LIGHT AND DRIVEN
PRIMARILY BY TERRAIN. WINDS SHOULD BE JUST A BIT STRONG ON
TUESDAY WITH SOME GUSTS TO 16 MPH POSSIBLE. A COLD FRONT WILL
APPROACH THE BURN SITE ON WEDNESDAY. WINDS WILL INCREASE A BIT
MORE ON WEDNESDAY. WINDS WILL BE ERRATIC WEDNESDAY AFTERNOON AS
TERRAIN WILL WANT TO GO UPSLOPE...BUT SURFACE PRESSURE GRADIENT
WILL WANT TO DRIVE THE WINDS TO THE SOUTHWEST. A COLD FRONT WILL
PUSH IN LATE WEDNESAY NIGHT AND EARLY THURSDAY. THIS FRONT WILL
CAUSE STRONG NORTHWEST WINDS AND A CHANCE OF SHOWERS ON THURSDAY.
AHEAD OF THE FRONT...A FEW THUNDERSTORMS WILL BE POSSIBLE
WEDNEDAY BUT IT APPEARS AT THIS TIME THAT THEY WILL STAY NORTH OF
THE BURN SITE. TWH


.TODAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MAX TEMPERATURE.....48-53.
MIN HUMIDITY........30-35 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......DOWNSLOPE/DOWNVALLEY 4-10 MPH THIS MORNING.
                    WINDS TURNING UPSLOPE/UPVALLEY BY LATE MORNING.
 RIDGETOP...........WEST TO NORTHWEST 5 TO 15 MPH.
MIXING HEIGHT.......9600 FT AGL.
MIXING WINDS........WEST 5 TO 15 MPH.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MIN TEMPERATURE.....26-31.
MAX HUMIDITY........77-82 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......DOWNSLOPE/DOWNVALLEY 4-10 MPH
 RIDGETOP...........SOUTH 5 TO 15 MPH.
MIXING HEIGHT.......300 FT AGL.
MIXING WINDS........SOUTHWEST 5 TO 15 MPH.

.TUESDAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MAX TEMPERATURE.....55-60.
MIN HUMIDITY........28-35 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......DOWNSLOPE/DOWNVALLEY 4-12 MPH IN THE MORNING.
                    WINDS TURNING UPSLOPE/UPVALLEY BY LATE MORNING.
                    WIND GUSTS TO 16 MPH POSSIBLE IN THE AFTERNOON.
 RIDGETOP...........SOUTHWEST 5 TO 15 MPH.
MIXING HEIGHT.......8700 FT AGL.
MIXING WINDS........SOUTHWEST 5 TO 15 MPH.

$$
FORECASTER...HUMPHREY
REQUESTED BY...MARVIN MATTHIESEN
TYPE OF REQUEST...PRESCRIBED
.TAG 20120509.BENCH.01/BYZ