FNUS75 KPIH 011048
FWSPIH

SPOT FORECAST FOR HALSTEAD...USFS
NATIONAL WEATHER SERVICE POCATELLO ID
448 AM MDT MON OCT 1 2012

FORECAST IS BASED ON REQUEST TIME OF 1907 MDT ON SEPTEMBER 30.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...STRONG GUSTY WINDS AHEAD OF AN APPROACHING COLD FRONT TUESDAY...

.DISCUSSION...A HIGH PRESSURE RIDGE WILL REMAIN POSITIONED OVER THE
WEST COAST TODAY GENERATING ONE MORE DAY OF WARM AND DRY CONDITIONS
THIS AFTERNOON. STRONG GUSTY WINDS ARE EXPECTED TO DEVELOP OVER THE
FIRE AREA TUESDAY AFTERNOON AS A DRY COLD FRONT DROPS SOUTH THROUGH
THE IDAHO PANHANDLE AND WESTERN MONTANA. EXPECT MUCH COLDER
TEMPERATURES BY WEDNESDAY.

.TODAY...

SKY/WEATHER.........SUNNY.
TEMPERATURE.........MAX 74 AT 6200 MSL.
                    MAX 54 AT 9900 MSL.
RH..................MIN 13 TO 15 PERCENT AT 6200 MSL.
                    MIN 18 TO 23 PERCENT AT 9900 MSL.
WIND (20 FT)........DRAINAGE WINDS 2 TO 5 MPH BELOW 9000 MSL
                    BECOMING WEST TO NORTHWEST 4 TO 8 MPH AFTER
                    1400 MDT WITH GUSTS TO 16 MPH UNTIL SUNSET.
                    ABOVE 9000 MSL...NORTH-NORTHWEST WINDS 6 TO 12
                    MPH INCREASING AND BECOMING WEST-NORTHWEST 10
                    TO 15 MPH WITH GUSTS UP TO 25 MPH IN THE
                    AFTERNOON.
CWR.................0 PERCENT.
MIXING HEIGHT.......TOP OF INVERSION AROUND 9000 FT MSL THIS MORNING
                    MIXING UPWARDS TO AROUND 13500 FT MSL THIS
                    AFTERNOON.
MIXING WINDS........LIGHT AND VARIABLE WINDS BECOMING WEST 8 TO 15
                    MPH IN THE AFTERNOON.
HAINES INDEX........3.
LAL.................1.

.TONIGHT...

SKY/WEATHER.........CLEAR.
TEMPERATURE.........MIN 31 TO 36 AT 6200 MSL.
                    MIN AROUND 45 AT 9900 MSL.
RH..................MAX 75 TO 85 PERCENT AT 6200 MSL.
                    MAX 38 TO 48 PERCENT AT 9900 MSL.
WIND (20 FT)........DRAINAGE WINDS DEVELOPING BELOW 8000 FT MSL
                    AFTER MIDNIGHT 4 TO 7 MPH.
                    INCREASING WEST-NORTHWEST WINDS ABOVE 8000 FT
                    MSL 10 TO 15 WITH GUSTS TO 23 MPH.
CWR.................0 PERCENT.
MIXING HEIGHT.......TOP OF INVERSION FORMING NEAR 8000 FT MSL.
MIXING WINDS........WEST 8 TO 16 MPH.
HAINES INDEX........3.
LAL.................1.

.TUESDAY...

SKY/WEATHER.........MOSTLY SUNNY.
TEMPERATURE.........MAX 67 TO 72 AT 6200 MSL.
                    MAX 50 TO 54 AT 9900 MSL.
RH..................MIN 16 TO 20 PERCENT AT 6200 MSL.
                    MIN 22 TO 26 PERCENT AT 9900 MSL.
WIND (20 FT)........WEST-NORTHWEST WINDS INCREASING IN THE AFTERNOON
                    BELOW 8000 FT MSL 8 TO 16 MPH WITH GUSTS TO 23 MPH.
                    WEST WINDS 10 TO 20 MPH WITH GUSTS TO AROUND 35
                    MPH ABOVE 8000 FT MSL.
CWR.................0 PERCENT.
MIXING HEIGHT.......RISING TO AROUND 12500 FT MSL IN THE AFTERNOON.
MIXING WINDS........WEST-NORTHWEST 20 TO 25 MPH
                    IN THE AFTERNOON.
HAINES INDEX........3.
LAL.................1.

$$
FORECASTER...HUSTON
REQUESTED BY...CENTRAL IDAHO DISPATCH
TYPE OF REQUEST...WILDFIRE
.TAG 20120930.HALST.01/PIH