FNUS75 KBOI 280325
FWSBOI

SPOT FORECAST FOR PATRICK BUTTE RX...PAYETTE NF
NATIONAL WEATHER SERVICE BOISE ID
925 PM MDT THU AUG 27 2009

FORECAST IS BASED ON IGNITION TIME OF 2040 MDT ON AUGUST 27.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...HOT AND DRY CONDITIONS THROUGH FRIDAY...

.DISCUSSION...
HOT AND DRY ON FRIDAY AS A STRONG RIDGE OF HIGH PRESSURE REMAINS
THE DOMINANT WEATHER FEATURE. HAINES INDEX OF 6 DUE TO VERY DRY AND
UNSTABLE AIR OVER THE BURN AREA. INCREASING MID AND HIGH LEVEL CLOUDS
FRIDAY EVENING AS AN UPPER LOW PRESSURE SYSTEM APPROACHES FROM THE WEST.
NOTABLY COOLER ON SATURDAY AS UPPER LOW MOVES IN.

.REST OF TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
MIN TEMPERATURE.....50 TO 56...NEAR 60 AT MID-SLOPE.
MAX HUMIDITY........26 TO 33 PERCENT.
WIND - EYE LEVEL....EAST AROUND 7 MPH AT RIDGETOP...SOUTH
                    AROUND 5 MPH AT MID-SLOPE.
HAINES INDEX........5 MODERATE.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WIND......EAST AROUND 7 MPH.
VENTILATION INDEX...35 POOR.

.FRIDAY...

SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....76 TO NEAR 90 AT LOWEST ELEVATIONS.
MIN HUMIDITY........15 AT LOWEST ELEVATIONS TO NEAR 25 PERCENT AT RIDGETOP.
WIND - EYE LEVEL....SOUTH AROUND 12 MPH AT RIDGETOP...NORTH
                    AROUND 5 MPH AT MID-SLOPE.
HAINES INDEX........6 HIGH.
MIXING HEIGHT.......10000 FT AGL.
TRANSPORT WIND......SOUTH AROUND 15 MPH.
VENTILATION INDEX...1500 EXCELLENT.

$$
FORECASTER...THIMMESCH
REQUESTED BY...DISPATCH - ANN
TYPE OF REQUEST...PRESCRIBED
.TAG 20090827.PATRI.03/BOI