FNUS75 KBOI 291944
FWSBOI

SPOT FORECAST FOR CHALK HILLS...BIFZ
NATIONAL WEATHER SERVICE BOISE ID
1244 PM MST TUE NOV 29 2011

FORECAST IS BASED ON IGNITION TIME OF 1000 PST ON NOVEMBER 30.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...COLD FRONT WILL MOVE OVER THE REGION LATE TONIGHT...
...DRY AND COLD FOR THURSDAY...

.DISCUSSION...
INCREASING CLOUDS THIS AFTERNOON AS A STORM SYSTEM MOVES INTO THE
PACIFIC NORTHWEST. SURFACE COLD FRONT WILL MOVE OVER THE BURN AREA
AROUND MIDNIGHT. SNOW SHOWERS WILL MOVE INTO THE REGION BY
WEDNESDAY MORNING AND WILL LAST THROUGH THE DAY. EXPECT ONLY A
DUSTING OF SNOW. SURFACE WINDS WILL BE LIGHT AHEAD OF THE FRONT AND
WILL SHIFT TO THE NORTHWEST BEHIND THE FRONT. DURING THE DAY ON
WEDNESDAY SURFACE WINDS WILL BE GUSTY. DRY CONDITIONS ON THURSDAY
WITH THE COLDEST TEMPERATURES SO FAR THIS SEASON.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY. A SLIGHT CHANCE OF SNOW SHOWERS
                    AFTER MIDNIGHT.
MIN TEMPERATURE.....24 TO 29.
MAX HUMIDITY........85 TO 89 PERCENT.
WIND - EYE LEVEL....SOUTH LESS THAN 5 MPH...BECOMING WEST 5 TO 8
                    MPH AFTER MIDNIGHT WITH GUSTS TO 13 MPH.
HAINES INDEX........2 VERY LOW.
MIXING HEIGHT.......900 FT AGL.
TRANSPORT WIND......WEST AROUND 15 MPH.
VENTILATION INDEX...135 POOR.

.WEDNESDAY...

SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SNOW SHOWERS.
MAX TEMPERATURE.....36 TO 41.
MIN HUMIDITY........49 TO 54 PERCENT.
WIND - EYE LEVEL....NORTHWEST 10 TO 14 MPH WITH GUSTS TO 22 MPH.
HAINES INDEX........2 VERY LOW.
MIXING HEIGHT.......4500 FT AGL.
TRANSPORT WIND......NORTH AROUND 20 MPH.
VENTILATION INDEX...900 EXCELLENT.

$$
FORECASTER...ALLEN
REQUESTED BY...BICC STAFF
TYPE OF REQUEST...PRESCRIBED
.TAG 20111130.CHALK.01/BOI