FNUS75 KBOI 251452
FWSBOI

SPOT FORECAST FOR WESTSIDE RX...USFS
NATIONAL WEATHER SERVICE BOISE ID
852 AM MDT THU APR 25 2013

FORECAST IS BASED ON IGNITION TIME OF 1200 MDT ON APRIL 25.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...DRY WARM AND BREEZY WITH HIGH CLOUDS THIS MORNING...

.DISCUSSION...HIGH LEVEL CLOUDS WILL MOVE SOUTHEAST OF THE WESTSIDE BURN
BY LATE MORNING AS THE INVERSION ERODES AROUND 1100 HOURS. EXPECT EASTERLY
DOWN VALLEY WINDS THIS MORNING TO SHIFT TO UPSLOPE WINDS FROM THE NORTHWEST
BY 1100 AS WELL. THIS AFTERNOON WINDS WILL BECOME UPVALLEY WEST ALONG THE
SOUTH FORK OF THE BOISE BY 1500 HOURS WITH GUSTS UP TO 14 MPH. THE NIGHT
TIME INVERSION WILL RE/DEVELOP AROUND 2000 HOURS WITH SOUTH/SOUTHEAST WINDS
DOWNSLOPE TOWARD FEATHERVILLE BY SUNSET. THE FORECAST FOR FRIDAY THROUGH
SUNDAY CALLS FOR WARMING AND DRY WEATHER WITH BREEZY CONDITIONS DEVELOPING
ON SATURDAY AND SUNDAY AHEAD OF A COLD FRONT THAT WILL MOVE THROUGH SUNDAY
AFTERNOON.

.TODAY...

SKY/WEATHER.........BECOMING MOSTLY SUNNY.
MAX TEMPERATURE.....62 TO 64.
MIN HUMIDITY........12 TO 15 PERCENT.
WIND - EYE LEVEL....NORTHWEST 3 TO 6 MPH AFTER 1100 BECOMING WEST 5 TO 8 MPH
                    AFTER 1500 HOURS WITH GUSTS 12 TO 14 MPH.
HAINES INDEX........3 VERY LOW.
MIXING HEIGHT.......7500 FT AGL.
TRANSPORT WIND......WEST AROUND 15 MPH.
VENTILATION INDEX...1125 EXCELLENT.

.TONIGHT...

SKY/WEATHER.........CLEAR.
MIN TEMPERATURE.....35.
MAX HUMIDITY........75 TO 80 PERCENT.
WIND - EYE LEVEL....DOWNSLOPE/DOWNVALLEY EAST 4 TO 6 MPH.
HAINES INDEX........3 VERY LOW.
MIXING HEIGHT.......600 FT AGL.
TRANSPORT WIND......NORTHEAST AROUND 5 MPH.
VENTILATION INDEX...30 POOR.

.FRIDAY...

SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....68.
MIN HUMIDITY........16 TO 23 PERCENT.
WIND - EYE LEVEL....UPSLOPE/UPVALLEY NORTHWEST BECOMING WEST AROUND 8 MPH.
HAINES INDEX........2 VERY LOW.
MIXING HEIGHT.......7000 FT AGL.
TRANSPORT WIND......NORTHWEST AROUND 10 MPH.
VENTILATION INDEX...700 EXCELLENT.

$$
FORECASTER...DECKER
REQUESTED BY...ERDIE
TYPE OF REQUEST...PRESCRIBED
.TAG 20130425.WESTS.01/BOI