FNUS75 KBYZ 082347
FWSBYZ

SPOT FORECAST FOR GILEAD...USFS
NATIONAL WEATHER SERVICE BILLINGS MT
547 PM MDT SAT SEP 8 2012

FORECAST IS BASED ON REQUEST TIME OF 1720 MDT ON SEPTEMBER 08.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...RED FLAG WARNING IN EFFECT FROM NOON MONDAY TO MIDNIGHT MDT
TUESDAY NIGHT...

.DISCUSSION...
TERRAIN DRIVEN WINDS WILL CONTINUE AT THE FIRE SITE TONIGHT AND
TOMORROW...WITH A POORER HUMIDITY RECOVERY TONIGHT AND WARMER
TEMPERATURES ON SUNDAY. WESTERLY WINDS WILL INCREASE SOMEWHAT
SUNDAY NIGHT IN RESPONSE TO A WEAK DISTURBANCE TO THE NORTH.

LOOKING AHEAD...FIRE WEATHER CONDITIONS WILL BECOME CRITICAL
MONDAY AND TUESDAY DUE TO HOT CONDITIONS...VERY LOW HUMIDITY AND
INCREASED INSTABILITY ON MONDAY FOLLOWED BY A DRY COLD FRONTAL
PASSAGE AND STRONG NORTHWESTERLY POST FRONTAL WINDS LATE MONDAY
INTO TUESDAY. A FEW THUNDERSTORMS ARE ALSO POSSIBLE MONDAY AND
MONDAY NIGHT.


.TONIGHT...

SKY/WEATHER.........CLEAR.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MIN TEMPERATURE.....54-58.
MAX HUMIDITY........33-37 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......BECOMING DOWNSLOPE/DOWNVALLEY 3-6 MPH
                    AFTER SUNSET.
 RIDGETOP...........EAST 5-15 MPH BECOMING NORTHWEST 10-18 MPH
                    AFTER SUNSET.
MIXING HEIGHT.......FALLING TO 1000 FT AGL.
MIXING WINDS........WEST 10 MPH.
HAINES INDEX........4.

.SUNDAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MAX TEMPERATURE.....77-82.
MIN HUMIDITY........11-16 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......DOWNSLOPE/DOWNVALLEY 3-6 MPH EARLY...BECOMING
                    UPSLOPE/UPVALLEY 5-12 MPH BY LATE MORNING.
 RIDGETOP...........NORTHWEST 10-18 MPH BECOMING EASTERLY 5-15
                    MPH BY LATE MORNING.
MIXING HEIGHT.......7000 FT AGL.
MIXING WINDS........SOUTHWEST 15 MPH.
HAINES INDEX........4.

.SUNDAY NIGHT...

SKY/WEATHER.........PARTLY CLOUDY.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MIN TEMPERATURE.....54-59.
MAX HUMIDITY........31-36 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......WEST 5-15 MPH.
 RIDGETOP...........WEST TO NORTHWEST 10-20 MPH WITH GUSTS TO
                    25 MPH.
MIXING HEIGHT.......FALLING TO 1500 FT AGL.
MIXING WINDS........WEST 15 MPH.
HAINES INDEX........4.

$$
FORECASTER...LESTER
REQUESTED BY...TIM KRAMER
TYPE OF REQUEST...WILDFIRE
.TAG 20120908.GILEA.02/BYZ