FNUS75 KBOI 252213
FWSBOI

SPOT FORECAST FOR LOST VALLEY RX...PAYETTE NF
NATIONAL WEATHER SERVICE BOISE ID
413 PM MDT TUE OCT 25 2011

FORECAST IS BASED ON IGNITION TIME OF 1230 MDT ON OCTOBER 26.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...CLEAR AND COLD.  POOR VENTILATION THROUGH WEDNESDAY...

.DISCUSSION...
CORE OF COLD AIR MASS AT THE SURFACE TONIGHT AND WEDNESDAY MORNING
BENEATH MODERATE NORTH WINDS ALOFT.  LATER WEDNESDAY WARMING WILL
OCCUR ALOFT AS WINDS ALOFT SHIFT TO WESTERLY.  WARMING AT THE SURFACE
WILL LAG BEHIND WARMING ALOFT.  THIS COMBINATION WILL RESULT IN POOR
VENTILATION TONIGHT THROUGH WEDNESDAY.  WEATHER WILL BE CLEAR AND DRY
HOWEVER.

.TONIGHT...

SKY/WEATHER.........CLEAR.
MIN TEMPERATURE.....22.
MAX HUMIDITY........70 PERCENT.
WIND - EYE LEVEL....NORTH 3 TO 6 MPH.
HAINES INDEX........4 LOW.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WIND......NORTHEAST AROUND 5 MPH.
VENTILATION INDEX...25 POOR.

.WEDNESDAY...

SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....48.
MIN HUMIDITY........27 PERCENT.
WIND - EYE LEVEL....NORTHEAST AROUND 3 MPH IN THE
                    MORNING...SHIFTING TO THE SOUTH IN THE
                    AFTERNOON.
HAINES INDEX........4 LOW.
MIXING HEIGHT.......3000 FT AGL.
TRANSPORT WIND......SOUTHWEST AROUND 5 MPH.
VENTILATION INDEX...150 POOR.

$$
FORECASTER...COLIN
REQUESTED BY...ANN NICHOLSON
TYPE OF REQUEST...PRESCRIBED
.TAG 20111026.LOSTV.01/BOI