FNUS75 KBOI 072117
FWSBOI

SPOT FORECAST FOR MUSTANG WEST...USFS
NATIONAL WEATHER SERVICE BOISE ID
317 PM MDT FRI SEP 7 2012

FORECAST IS BASED ON REQUEST TIME OF 1453 MDT ON SEPTEMBER 07.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY MORNING THROUGH
SUNDAY AFTERNOON...
...VERY DRY OUTSIDE OF THUNDERSTORM CORES AND BREEZY SUNDAY AFTERNOON...
...BREEZY AND NOT AS HOT MONDAY...

.DISCUSSION...
VERY WARM THERMAL AXIS WILL BE WEST OF THE MUSTANG WEST FIRE THROUGH
SUNDAY MORNING RESULTING IN DIURNAL WINDS TONIGHT THROUGH SATURDAY
NIGHT. DRY WARM THERMAL BELTS WILL CONTINUE THE NEXT TWO NIGHTS AND
RETURN MID-WEEK. MONSOON MOISTURE WILL LIFT NORTH OVER THE PAYETTE
SUNDAY MORNING. A COLD FRONT WILL DEVELOP OVER SE OREGON SATURDAY
NIGHT AND PUSH THE THERMAL AXIS EAST OF THE MUSTANG WEST FIRE SUNDAY
AFTERNOON. THE FRONT WILL BRING INCREASING WINDS ACROSS THE MUSTANG
WEST FIRE SUNDAY EVENING...AND COOLING ON MONDAY.


.TONIGHT...

SKY/WEATHER.........CLEAR.
MIN TEMPERATURE.....34 TO 49.
MAX HUMIDITY........51 TO 71 PERCENT.
WIND - EYE LEVEL....DOWNSLOPE/DOWNVALLEY 2 TO AROUND 4 MPH.
HAINES INDEX........3 VERY LOW.
MIXING HEIGHT.......200 FT AGL.
TRANSPORT WIND......EAST AROUND 5 MPH.
VENTILATION INDEX...10 POOR.

.SATURDAY...

SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....76 TO 91.
MIN HUMIDITY........8 TO 13 PERCENT.
WIND - EYE LEVEL....UPSLOPE/UPVALLEY 3 TO 5 MPH.
HAINES INDEX........4 LOW.
MIXING HEIGHT.......7500 FT AGL.
TRANSPORT WIND......WEST AROUND 5 MPH.
VENTILATION INDEX...375 FAIR.

.SATURDAY NIGHT...

SKY/WEATHER.........PARTLY CLOUDY.
MIN TEMPERATURE.....36 TO 51.
MAX HUMIDITY........45 TO 70 PERCENT.
WIND - EYE LEVEL....DOWNSLOPE/DOWNVALLEY 2 TO AROUND 4 MPH.
HAINES INDEX........4 LOW.
MIXING HEIGHT.......200 FT AGL.
TRANSPORT WIND......EAST AROUND 5 MPH.
VENTILATION INDEX...10 POOR.

.SUNDAY...

SKY/WEATHER.........PARTLY SUNNY. A CHANCE OF SHOWERS AND
                    THUNDERSTORMS...MAINLY IN THE AFTERNOON. CHANCE
                    OF PRECIPITATION 40 PERCENT.
MAX TEMPERATURE.....71 TO 86.
MIN HUMIDITY........14 TO 23 PERCENT.
WIND - EYE LEVEL....UPSLOPE 3 TO 5 MPH IN THE MORNING BECOMING
                    WEST 4 TO 7 MPH. GUSTS UP TO 20 MPH IN THE
                    AFTERNOON. RIDGETOP WINDS SOUTHWEST 25 MPH.
HAINES INDEX........3 VERY LOW.
MIXING HEIGHT.......8500 FT AGL.
TRANSPORT WIND......SOUTHWEST AROUND 10 MPH.
VENTILATION INDEX...850 EXCELLENT.

OUTLOOK SUNDAY NIGHT AND MONDAY...
.PARTLY CLOUDY WITH A 30 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS SUNDAY EVENING THEN MOSTLY CLEAR.
LOWS 42 TO 55. HIGHS 70 TO 85. WEST WINDS 10 TO
15 MPH WITH GUSTS TO 30 MPH SUNDAY NIGHT AND MONDAY.

$$
FORECASTER...MILLS
REQUESTED BY...PAYETTE NATIONAL FOREST
TYPE OF REQUEST...WILDFIRE
.TAG 20120907.MUSTA.01/BOI