FNUS75 KBOI 031550
FWSBOI

SPOT FORECAST FOR SAM S PINE...BOISE NF
NATIONAL WEATHER SERVICE BOISE ID
950 AM MDT WED APR 3 2013

FORECAST IS BASED ON IGNITION TIME OF 0930 MDT ON APRIL 03.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...PATTERN CHANGE COMING BY THE END OF THE WEEK...

.DISCUSSION...
A WEAK UPPER TROUGH WILL MOVE OUT OF THE AREA LATE THIS MORNING
THEN AN UPPER RIDGE REBOUNDS TONIGHT AHEAD OF THE NEXT STRONG SYSTEM.
THIS SYSTEM WILL BEGIN TO PUSH MID AND HIGH CLOUDS ACROSS THE REGION
OVERNIGHT. CLOUDY SKIES ARE EXPECTED THURSDAY WITH PRECIPITATION
POSSIBLE BY LATE AFTERNOON. THE COLD FRONT WILL FINALLY PUSH THROUGH
THE MOUNTAINS THURSDAY EVENING. SNOW LEVEL WILL LOWER TO AROUND 6500
FEET FRIDAY AFTERNOON AND THEN AROUND 6000 FEET FRIDAY NIGHT. A MOIST
FLOW WILL CONTINUE TO SPREAD ACROSS THE REGION THROUGH THE WEEKEND.

.REST OF TODAY...

SKY/WEATHER.........CLEARING LATE THIS MORNING. WIDELY SCATTERED RAIN
                    SHOWERS THROUGH NOON. CHANCE OF SHOWERS 20 PERCENT.
MAX TEMPERATURE.....54 TO 59.
MIN HUMIDITY........37 TO 42 PERCENT.
WIND - EYE LEVEL....VARIABLE WIND TO 2 MPH THIS MORNING BECOMING UPSLOPE/UPVALLEY
                    2 TO 3 MPH THIS AFTERNOON.
HAINES INDEX........2 VERY LOW.
MIXING HEIGHT.......4000 FT AGL.
TRANSPORT WIND......SOUTHWEST AROUND 10 MPH.
VENTILATION INDEX...400 FAIR.

.TONIGHT...

SKY/WEATHER.........BECOMING MOSTLY CLOUDY.
MIN TEMPERATURE.....AROUND 40.
MAX HUMIDITY........73 TO 92 PERCENT.
WIND - EYE LEVEL....BECOMING DOWNSLOPE LESS THAN 3 MPH AFTER SUNSET.
HAINES INDEX........2 VERY LOW.
MIXING HEIGHT.......1000 FT AGL.
TRANSPORT WIND......SOUTH AROUND 5 MPH.
VENTILATION INDEX...50 POOR.

.THURSDAY...

SKY/WEATHER.........CLOUDY. A CHANCE OF RAIN SHOWERS...MAINLY IN THE
                    AFTERNOON. CHANCE OF SHOWERS 40 PERCENT...BECOMING 90 PERCENT
                    IN THE EVENING.
MAX TEMPERATURE.....53 TO 61.
MIN HUMIDITY........33 TO 38 PERCENT.
WIND - EYE LEVEL....UPSLOPE/UPVALLEY AROUND 4 MPH WITH AFTERNOON GUSTS TO 8 MPH BY
                    THE AFTERNOON. OVER THE RIDGES SOUTHWEST TO 10 MPH BY THE AFTERNOON.
HAINES INDEX........2 VERY LOW.
MIXING HEIGHT.......3000 FT AGL.
TRANSPORT WIND......SOUTH AROUND 15 MPH.
VENTILATION INDEX...600 GOOD.

$$
FORECASTER...REDMAN
REQUESTED BY...COLIN GOOD
TYPE OF REQUEST...PRESCRIBED
.TAG 20130403.SAMSP.02/BOI