FNUS75 KBOI 272215
FWSBOI

SPOT FORECAST FOR WARM SPRINGS...PAYETTE NF
NATIONAL WEATHER SERVICE BOISE ID
415 PM MDT THU OCT 27 2011

FORECAST IS BASED ON IGNITION TIME OF 1630 MDT ON OCTOBER 27.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...FAIR VENTILATION FRIDAY WITH INCREASING CLOUDS...

.DISCUSSION...A RIDGE OF HIGH PRESSURE HAS KEPT AN INVERSION OVER THE
WARM SPRINGS BURN UNIT THE PAST SEVERAL DAYS. THIS WILL FINALLY CHANGE
BY FRIDAY AFTERNOON AS A WEAK SHORTWAVE TROUGH APPROACHES FROM THE WEST.
THIS WILL ALLOW SLIGHTLY BETTER MIXING AND VENTILATION. AS THE TROUGH
GETS CLOSER LATE FRIDAY NIGHT AND SATURDAY...THERE WILL BE INCREASED CLOUDS.


.FRIDAY...

SKY/WEATHER.........PARTLY SUNNY...THEN BECOMING CLOUDY.
MAX TEMPERATURE.....48 TO 53.
MIN HUMIDITY........30 TO 35 PERCENT.
WIND - EYE LEVEL....SOUTH TO SOUTHWEST 4 TO 8 MPH.
HAINES INDEX........3 VERY LOW.
MIXING HEIGHT.......2500 FT AGL.
TRANSPORT WIND......SOUTH 10 TO 15 MPH.
VENTILATION INDEX...375 FAIR.

$$
FORECASTER...DECKER
REQUESTED BY...PAYETTE NATIONAL FOREST
TYPE OF REQUEST...PRESCRIBED
.TAG 20111027.WARMS.03/BOI