FNUS75 KBOI 201934
FWSBOI

SPOT FORECAST FOR BEAR BASIN PILES...PAYETTE NF
NATIONAL WEATHER SERVICE BOISE ID
1234 PM MST TUE NOV 20 2012

FORECAST IS BASED ON IGNITION TIME OF 0830 MST ON NOVEMBER 20.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...VERY WET CONDITIONS OVER THE BURN SITE...

.DISCUSSION...
A STRONG PACIFIC WEATHER SYSTEM IS AFFECTING THE AREA TODAY THROUGH
WEDNESDAY WITH RAINY CONDITIONS. THE POTENTIAL EXISTS FOR PERIODS OF
MODERATE TO OCCASIONALLY HEAVY RAIN THROUGH THE EVENING AS A COLD FRONT
GETS CLOSER.  ONCE THE FRONT CROSSES WEDNESDAY MORNING...COLDER AIR WILL
BECOME ESTABLISHED WITH SNOW LEVELS DROPPING TO VALLEY FLOORS WEDNESDAY
AFTERNOON. AT THAT TIME...THE BULK OF THE PRECIPITATION WILL BE TO THE EAST
BUT THERE WILL BE SCATTERED SNOW SHOWERS LINGERING. MUCH COLDER AND MORE
DAMP WEATHER WILL EXIST THANKSGIVING DAY AND FRIDAY AS HIGH PRESSURE BUILDS
OVER THE TOP WITH DEVELOPING LOW CLOUDS AND FOG.

.TODAY...

SKY/WEATHER.........WIDESPREAD RAIN. CHANCE OF RAIN NEAR 100
                    PERCENT. RAIN MODERATE TO HEAVY AT TIMES.
MAX TEMPERATURE.....38 TO 43.
MIN HUMIDITY........78 TO 94 PERCENT...OUTSIDE OF RAIN PERIODS.
WIND - EYE LEVEL....SOUTH 11 TO 17 MPH WITH GUSTS TO 32 MPH ON THE RIDGE TOPS.
HAINES INDEX........2 VERY LOW.
MIXING HEIGHT.......1000 FT AGL.
TRANSPORT WIND......SOUTH AROUND 20 MPH.
VENTILATION INDEX...200 FAIR.

.TONIGHT...

SKY/WEATHER.........RAIN. CHANCE OF RAIN NEAR 100 PERCENT.  RAIN MODERATE TO
                    HEAVY AT TIMES.
MIN TEMPERATURE.....33 TO 38.
MAX HUMIDITY........95 TO 100 PERCENT.
WIND - EYE LEVEL....SOUTH 11 TO 17 MPH WITH GUSTS TO 32 MPH AT RIDGE TOP LEVEL.
HAINES INDEX........2 VERY LOW.
MIXING HEIGHT.......800 FT AGL.
TRANSPORT WIND......SOUTH AROUND 20 MPH.
VENTILATION INDEX...160 POOR.

.WEDNESDAY...

SKY/WEATHER.........RAIN SHOWERS CHANGING TO SNOW SHOWERS. CHANCE OF
                    PRECIPITATION 90 PERCENT. SNOW ACCUMULATION OF 1 TO 2
                    INCHES BY AFTERNOON.
MAX TEMPERATURE.....33 TO 38.
MIN HUMIDITY........70 TO 86 PERCENT.
WIND - EYE LEVEL....SOUTHWEST 10 TO 16 MPH. GUSTS UP TO 30 MPH IN
                    THE MORNING...DECREASING TO 24 MPH IN THE
                    AFTERNOON ON THE RIDGE TOPS.
HAINES INDEX........3 VERY LOW.
MIXING HEIGHT.......4000 FT AGL.
TRANSPORT WIND......SOUTHWEST AROUND 25 MPH.
VENTILATION INDEX...1000 EXCELLENT.

$$
FORECASTER...SKARI
REQUESTED BY...ANN NICHOLSON
TYPE OF REQUEST...PRESCRIBED
.TAG 20121120.BEARB.02/BOI