FNUS75 KBOI 211353
FWSBOI

SPOT FORECAST FOR BEAR CR...USFS
NATIONAL WEATHER SERVICE BOISE ID
753 AM MDT TUE APR 21 2009

FORECAST IS BASED ON IGNITION TIME OF 0745 MDT ON APRIL 21.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

..INCREASING MOISTURE TONIGHT THEN COOLER WEDNESDAY...

.DISCUSSION...
.SURFACE HIGH PRESSURE CENTER TO REMAIN EAST OF THE BURN TODAY AS LOW
PRESSURE CONTINUES IN OREGON. SO LOOK FOR A DELAY IN STEADIER DIRECTION
OF AFTERNOON UPSLOPE/WEST WINDS AS OCCURRED YESTERDAY. THE WARM RIDGE
PEAKS OVER BEAR CK ABOUT 6 PM. WEAK THERMAL TROUGH OVER BEAR CK TONIGHT.
MOIST COLD FRONT CROSSES THE BURN AROUND 3 AM TONIGHT FOR A SLIGHT
CHANCE OF SHOWERS. GUSTY WEST WINDS AND COOLER WEDNESDAY WITH A
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS.

.TODAY...

SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....76.
MIN HUMIDITY........15 PERCENT.
WIND - EYE LEVEL....EAST LESS THAN 3 MPH IN THE MORNING...BECOMING WEST
                    4 GUSTING TO 7 MPH AROUND 3 PM IN THE AFTERNOON.
HAINES INDEX........3 VERY LOW.
MIXING HEIGHT.......5000 FT AGL.
TRANSPORT WIND......WEST AROUND 10 MPH.
VENTILATION INDEX...500 GOOD.

.TONIGHT...

SKY/WEATHER.........INCREASING CLOUDS. A SLIGHT CHANCE OF RAIN SHOWERS.
MIN TEMPERATURE.....41.
MAX HUMIDITY........77 PERCENT.
WIND - EYE LEVEL....WEST 3 TO 5 MPH BECOMING LIGHT EAST LESS THAN 3 MPH.
HAINES INDEX........4 LOW.
MIXING HEIGHT.......1500 FT AGL.
TRANSPORT WIND......SOUTHWEST AROUND 10 MPH.
VENTILATION INDEX...150 POOR.

.WEDNESDAY...

SKY/WEATHER.........PARTLY SUNNY. A SLIGHT CHANCE OF SHOWERS AND
                    THUNDERSTORMS.
MAX TEMPERATURE.....66.
MIN HUMIDITY........25 PERCENT.
WIND - EYE LEVEL....SOUTHWEST 4 TO 7 MPH IN THE MORNING BECOMING
                    WEST 6 WITH GUSTS UP TO 12 MPH IN THE AFTERNOON.
HAINES INDEX........4 LOW.
MIXING HEIGHT.......7500 FT AGL.
TRANSPORT WIND......WEST AROUND 25 MPH.
VENTILATION INDEX...1875 EXCELLENT.

$$
FORECASTER...MILLS
REQUESTED BY...REX MILLER
TYPE OF REQUEST...PRESCRIBED
.TAG 20090421.BEARC.01/BOI