FNUS75 KPIH 291018
FWSPIH

SPOT FORECAST FOR SALT FIRE...USFS
NATIONAL WEATHER SERVICE POCATELLO ID
418 AM MDT THU SEP 29 2011

FORECAST IS BASED ON REQUEST TIME OF 1952 MDT ON SEPTEMBER 28.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...A HIGH PRESSURE RIDGE POSITIONED OVER THE GREAT
BASIN WILL PROVIDE WARM AND DRY CONDITIONS THROUGH FRIDAY. SURFACE
WINDS WILL BE SOMEWHAT VARIABLE TODAY WITH A SURFACE HIGH BUILDING
SOUTH ACROSS MONTANA PROVIDING AN EAST TO SOUTHEAST FLOW WHILE
WINDS ALOFT REMAIN SOUTHWEST AND A PLAYER LATER THIS AFTERNOON AS
SURFACE HEATING MAY HELP TO MIX THESE WINDS DOWN INTO THE VALLEY
LOCATIONS. BY FRIDAY AFTERNOON BOTH INFLUENCES AT THE SURFACE AND
ALOFT WILL PROMOTE PRIMARILY SOUTHWEST WINDS.

.TODAY...

SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....63-68 AT 9000 FEET
                    69-73 AT 8000 FEET
                    74-78 AT 7000 FEET
MIN HUMIDITY........22-26 PERCENT AT 9000 FEET
                    12-18 PERCENT BELOW 8000 FEET
WIND (20 FT)........SOUTHWEST 5 TO 15 MPH ABOVE 8000 FEET.
                    VARIABLE/UPSLOPE 2 TO 5 MPH IN VALLEYS BELOW
                    8000 FEET...BECOMING SOUTH-SOUTHWEST 5 TO 10 MPH
                    IN THE AFTERNOON. OCCASIONAL GUSTS OF 20 TO 25 MPH
                    IN THE AFTERNOON.
CWR.................0 PERCENT.
MIXING HEIGHT.......4900-5900 FT AGL.
MIXING WINDS........SOUTHWEST AROUND 14 MPH.
HAINES INDEX........5.
LAL.................1.

.TONIGHT...

SKY/WEATHER.........CLEAR.
MIN TEMPERATURE.....AROUND 50.
MAX HUMIDITY........34-44 PERCENT.
WIND (20 FT)........INCREASING SOUTHWEST WINDS 10 TO 20 MPH ABOVE
                    8000 FEET.  DOWNSLOPE/DOWNVALLEY 2 TO 6 MPH IN
                    THE VALLEYS OVERNIGHT.
CWR.................0 PERCENT.
MIXING HEIGHT.......200-300 FT AGL.
MIXING WINDS........WEST AROUND 14 MPH.
HAINES INDEX........4.
LAL.................1.

.FRIDAY...

SKY/WEATHER.........INCREASING CLOUDS THROUGHOUT THE AFTERNOON.
MAX TEMPERATURE.....64-69 AT 9000 FEET
                    70-74 AT 8000 FEET
                    75-80 AT 7000 FEET
MIN HUMIDITY........22-26 PERCENT AT 9000 FEET
                    12-18 PERCENT BELOW 8000 FEET
WIND (20 FT)........SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS UP TO 25 MPH
                    ABOVE 8000 FEET. VARIABLE/UPSLOPE 2 TO 5 MPH IN
                    THE VALLEYS BELOW 8000 FEET IN THE MORNING...
                    BECOMING SOUTH-SOUTHWEST 6 TO 12 MPH IN THE
                    AFTERNOON WITH OCCASIONAL GUSTS TO 25 MPH.
CWR.................0 PERCENT.
MIXING HEIGHT.......10000-10200 FT AGL.
MIXING WINDS........SOUTHWEST AROUND 16 MPH.
HAINES INDEX........5.
LAL.................1.

$$
FORECASTER...HUSTON
REQUESTED BY...STEVE COBB
TYPE OF REQUEST...WILDFIRE
.TAG 20110928.SALTF.02/PIH