FNUS75 KBOI 171158
FWSBOI

SPOT FORECAST FOR WARM LAKE HAND PILES...CASCADE RD, BOF
NATIONAL WEATHER SERVICE BOISE ID
558 AM MDT MON OCT 17 2011

FORECAST IS BASED ON IGNITION TIME OF 0900 MDT ON OCTOBER 17.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...MILD INVERSION CONDITION...POOR VENTILATION...

.DISCUSSION...
BUILDING HIGH PRESSURE ALOFT ABOVE COOL MOIST AIR MASS NEAR THE
SURFACE HAS CREATED A MILD INVERSION CONDITION WITH AREAS OF FOG.
FOG WILL DISSIPATE BY LATE MORNING.  CLEAR AND DRIER THIS AFTERNOON.
FOG WILL RE-FORM TONIGHT BUT NOT AS MUCH.  CLEAR AND WARMER AFTER
MID-MORNING TUESDAY AS THE HIGH PRESSURE ALOFT MOVES DIRECTLY
OVERHEAD.  A LOW PRESSURE AREA IN THE PACIFIC OFF CALIFORNIA WILL
MOVES IN WEDNESDAY.  THE WEAKENING LOW WILL BRING COOLING ALOFT
IMPROVING VENTILATION.  CLOUDS ARE EXPECTED BUT NO PRECIPITATION.
THE LOW WILL MOVE OUT THURSDAY AND HIGH PRESSURE ALOFT WILL REBUILD
CAUSING POOR VENTILATION AGAIN. NO SIGNIFICANT WINDS THROUGH THURSDAY.

.TODAY...

SKY/WEATHER.........AREAS OF FOG UNTIL 1000 MDT OTHERWISE SUNNY.
MAX TEMPERATURE.....55 TO 57.
MIN HUMIDITY........34 TO 37 PERCENT.
WIND - EYE LEVEL....EAST AROUND 3 MPH IN THE MORNING...SHIFTING TO
                    THE WEST IN THE AFTERNOON.
MIXING HEIGHT.......3500 FT AGL.
TRANSPORT WIND......WEST AROUND 5 MPH.
VENTILATION INDEX...175 POOR.

.TUESDAY...

SKY/WEATHER.........PATCHY FOG UNTIL 1000 MDT OTHERWISE SUNNY.
MAX TEMPERATURE.....61 TO 63.
MIN HUMIDITY........27 TO 30 PERCENT.
WIND - EYE LEVEL....SOUTHEAST AROUND 3 MPH IN THE
                    MORNING...BECOMING LESS THAN 3 MPH IN THE
                    AFTERNOON.
MIXING HEIGHT.......3000 FT AGL.
TRANSPORT WIND......SOUTH AROUND 5 MPH.
VENTILATION INDEX...150 POOR.

$$
FORECASTER...COLIN
REQUESTED BY...MARK LOSEKE
TYPE OF REQUEST...PRESCRIBED
.TAG 20111017.WARML.01/BOI