FNUS75 KBOI 221422
FWSBOI

SPOT FORECAST FOR GRANITE CREEK PILES...BOISE NF
NATIONAL WEATHER SERVICE BOISE ID
822 AM MDT THU OCT 22 2009

FORECAST IS BASED ON IGNITION TIME OF 1100 MDT ON OCTOBER 22.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...RAIN APPROACHING FRIDAY NIGHT AND THEN BREEZY ON SATURDAY...

.DISCUSSION...
MOSTLY CLEAR TODAY WITH LIGHT NORTHWEST WINDS. INCREASING CLOUDS ON FRIDAY.
A WEAK SYSTEM MOVING BY TO THE NORTH SHOULD BRING SOME RAIN THE THE AREA
ON FRIDAY NIGHT...PROBABLY AROUND 0.20 INCH. BREEZY NORTHWEST WINDS OF 15
TO 20 MPH FOLLOW ON SATURDAY. A MORE SIGNIFICANT SYSTEM WITH RAIN AND SNOW
AND STRONGER WINDS WILL MOVE INTO THE AREA ON MONDAY.

.TODAY...

SKY/WEATHER.........PARTLY SUNNY.
MAX TEMPERATURE.....48 TO 56.
MIN HUMIDITY........49 TO 58 PERCENT.
WIND - EYE LEVEL....NORTHWEST AROUND 8 MPH.
HAINES INDEX........2 VERY LOW.
MIXING HEIGHT.......4000 FT AGL.
TRANSPORT WIND......NORTHWEST AROUND 10 MPH.
VENTILATION INDEX...400 FAIR.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR EARLY...PARTLY CLOUDY AFTER MIDNIGHT.
MIN TEMPERATURE.....31 TO 36.
MAX HUMIDITY........87 TO 93 PERCENT.
WIND - EYE LEVEL....NORTHWEST 3 TO 6 MPH IN THE EVENING...SHIFTING
                    TO THE NORTHEAST 3 TO 4 MPH AFTER MIDNIGHT.
HAINES INDEX........3 VERY LOW.
MIXING HEIGHT.......2000 FT AGL.
TRANSPORT WIND......NORTHWEST AROUND 10 MPH.
VENTILATION INDEX...200 FAIR.

.FRIDAY...

SKY/WEATHER.........INCREASING CLOUDS.
MAX TEMPERATURE.....46 TO 59.
MIN HUMIDITY........45 TO 64 PERCENT.
WIND - EYE LEVEL....NORTHEAST AROUND 3 MPH IN THE
                    MORNING...SHIFTING TO THE NORTHWEST 9 TO 12 MPH IN
                    THE AFTERNOON.
HAINES INDEX........2 VERY LOW.
MIXING HEIGHT.......2500 FT AGL.
TRANSPORT WIND......WEST AROUND 15 MPH.
VENTILATION INDEX...375 FAIR.

$$
FORECASTER...BARKER
REQUESTED BY...ALLYN SPANFELLNER
TYPE OF REQUEST...PRESCRIBED
.TAG 20091022.GRANI.01/BOI