FNUS75 KBOI 091231
FWSBOI

SPOT FORECAST FOR GRANITE CREEK PILES...USFS
NATIONAL WEATHER SERVICE BOISE ID
531 AM MST WED NOV 9 2011

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

...MOSTLY CLOUDY TODAY WITH A STEEP MORNING INVERSION...
...WARMER AND DRIER THROUGH FRIDAY WITH FAIR TO POOR VENTILATION...
...LIGHT SNOW LIKELY SATURDAY NIGHT...

.DISCUSSION...
AN UPPER LEVEL RIDGE WILL BE IN CONTROL THROUGH FRIDAY RESULTING
IN LIMITED VENTILATION. LOOK FOR HIGH CLOUDS ABOVE GRANITE CREEK
TODAY ON THE EAST FLANK OF THE UPPER LEVEL RIDGE. WARMER AND
DRIER AIR WILL MOVE IN TONIGHT WITH THE WEST FLANK OF THE RIDGE
OVER GRANITE CREEK TONIGHT THROUGH FRIDAY. EXPECT 2 DEGREES OF
WARMING AND 7 PERCENT DRYING EACH DAY...AND CLEAR SKIES. SURFACE
HIGH PRESSURE TO THE EAST AND A SURFACE LOW MOVING SOUTH
OFFSHORE WILL FAVOR LIGHT DIURNAL WINDS THROUGH FRIDAY.


.TODAY...

SKY/WEATHER.........MOSTLY CLOUDY.
MAX TEMPERATURE.....41 TO 43.
MIN HUMIDITY........46 TO 48 PERCENT.
WIND - EYE LEVEL....LIGHT DOWNVALLEY WINDS EARLY THIS MORNING.
                    1000 AM LIGHT UPSLOPE 1 TO 2 MPH...IN THE
                    AFTERNOON BECOMING SOUTH WINDS 2 TO 4 MPH.
HAINES INDEX........2 VERY LOW.
MIXING HEIGHT.......2500 FT AGL.
TRANSPORT WIND......SOUTHEAST AROUND 10 MPH.
VENTILATION INDEX...250 FAIR.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY IN THE EVENING THEN CLEAR AFTER MIDNIGHT.
MIN TEMPERATURE.....19 TO 23.
MAX HUMIDITY........80 TO 85 PERCENT.
WIND - EYE LEVEL....LIGHT DOWNSLOPE LESS THAN 3 MPH.
HAINES INDEX........3 VERY LOW.
MIXING HEIGHT.......2000 FT AGL.
TRANSPORT WIND......NORTHEAST AROUND 5 MPH.
VENTILATION INDEX...100 POOR.

.THURSDAY...

SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....43 TO 46.
MIN HUMIDITY........39 TO 41 PERCENT.
WIND - EYE LEVEL....LIGHT UPSLOPE LESS THAN 3 MPH.
HAINES INDEX........4 LOW.
MIXING HEIGHT.......1500 FT AGL.
TRANSPORT WIND......SOUTHEAST AROUND 10 MPH.
VENTILATION INDEX...150 POOR.

$$
FORECASTER...MILLS
REQUESTED BY...ALLYN SPANFELLNER
TYPE OF REQUEST...PRESCRIBED
.TAG 20111109.GRANI.01/BOI