FNUS75 KBOI 220146
FWSBOI

SPOT FORECAST FOR YELLOW PINE  EIGUREN RANCH RX...PAYETTE NF
NATIONAL WEATHER SERVICE BOISE ID
746 PM MDT WED SEP 21 2011

FORECAST IS BASED ON IGNITION TIME OF 1030 MDT ON SEPTEMBER 23.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...WARMING AND DRYING WITH LIGHT DIURNAL WINDS TONIGHT THROUGH SATURDAY...
...HAINES 6 LIKELY SATURDAY THEN A THREAT OF THUNDERSTORMS LATE SUNDAY...

.DISCUSSION...
A BROAD THERMAL AXIS WILL BE OVER THE AREA THURSDAY FOR WARM AND
DRY WEATHER. THE UPPER LEVEL RIDGE WILL STRENGTHEN OVER THE GREAT
BASIN FRIDAY AND SATURDAY WITH NEAR RECORD HIGH TEMPERATURES
FRIDAY. THE RIDGE WILL PEAK SATURDAY WITH STEEP LAPSE RATES AND
CONTINUED DRY WEATHER RESULTING IN HAINES OF 6 LIKELY ON SATURDAY.
AN APPROACHING FRONT WILL BRING INCREASING EAST WINDS SATURDAY
NIGHT THEN CROSS THE AREA WITH A THREAT OF THUNDERSTORMS PROBABLY
BY LATE SUNDAY AFTERNOON OR EVENING.

.THURSDAY...

SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....81.
MIN HUMIDITY........14 PERCENT.
WIND - EYE LEVEL....UPSLOPE SOUTHWEST UP TO 4 MPH.
HAINES INDEX........3 VERY LOW.
MIXING HEIGHT.......6500 FT AGL.
TRANSPORT WIND......SOUTHWEST AROUND 10 MPH.
VENTILATION INDEX...650 GOOD.

.THURSDAY NIGHT...

SKY/WEATHER.........CLEAR.
MIN TEMPERATURE.....42.
MAX HUMIDITY........60 PERCENT.
WIND - EYE LEVEL....DOWNSLOPE 1 TO 3 MPH.
HAINES INDEX........3 VERY LOW.
MIXING HEIGHT.......300 FT AGL.
TRANSPORT WIND......NORTHEAST AROUND 5 MPH.
VENTILATION INDEX...15 POOR.

.FRIDAY...

SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....83.
MIN HUMIDITY........12 PERCENT.
WIND - EYE LEVEL....UPSLOPE SOUTHWEST UP TO 4 MPH WITH GUSTS
                    TO 10 MPH IN THE AFTERNOON.
HAINES INDEX........4 LOW.
MIXING HEIGHT.......6000 FT AGL.
TRANSPORT WIND......SOUTHWEST AROUND 15 MPH.
VENTILATION INDEX...900 EXCELLENT.

$$
FORECASTER...MILLS
REQUESTED BY...DISPATCH
TYPE OF REQUEST...PRESCRIBED
.TAG 20110923.YELLO.01/BOI