FNUS75 KBYZ 081143
FWSBYZ

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

FORECAST IS BASED ON REQUEST TIME OF 0512 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...
IT WILL BE VERY DRY WITH MINIMUM HUMIDITY VALUES IN THE TEENS BOTH
TODAY AND SUNDAY. EXPECT SLOPE AND VALLEY WINDS TO BECOME EASTERLY
IN DIRECTION BY THE MID TO LATE MORNING HOURS TODAY. HOWEVER...THE
WINDS ON HIGHER AND EXPOSED RIDGETOPS WILL STAY OUT OF THE WEST OR
NORTHWEST THROUGH THE DAY.

CRITICAL FIRE WEATHER CONDITIONS WILL OCCUR FROM MONDAY AFTERNOON
THROUGH TUESDAY AFTERNOON DUE TO GUSTY...SHIFTING WINDS...AND LOW
HUMIDITY. A DRY COLD FRONT WILL PASS THE FIRE SITE MONDAY EVENING
AND RESULT IN A DRAMATIC SHIFT TO STRONG NORTHWEST WINDS. SCHULTZ

.TODAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MAX TEMPERATURE.....71-76.
MIN HUMIDITY........14-19 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......DOWNSLOPE/DOWN VALLEY WINDS 3 TO 6 MPH
                    WILL BECOME EAST 6 TO 11 MPH BY MID TO
                    LATE MORNING.
 RIDGETOP...........NORTHWEST 10 TO 20 MPH...BECOMING WEST
                    10 TO 15 MPH THIS AFTERNOON.
MIXING HEIGHT.......6100 FT AGL.
MIXING WINDS........NORTHWEST 5 TO 15 MPH...BECOMING WEST
                    5 TO 15 MPH THIS AFTERNOON.
HAINES INDEX........4.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MIN TEMPERATURE.....45-50.
MAX HUMIDITY........40-45 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......EAST WINDS 5 TO 10 MPH BECOMING DOWNSLOPE
                    AND DOWN VALLEY 3 TO 6 MPH AFTER SUNSET.
 RIDGETOP...........WEST 5 TO 15 MPH...BECOMING NORTHWEST 10
                    TO 15 MPH AFTER SUNSET.
MIXING HEIGHT.......1000 FT AGL.
MIXING WINDS........WEST 5 TO 15 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/DOWN VALLEY WINDS 3 TO 6 MPH WILL
                    BECOME EAST-SOUTHEAST 5 TO 10 MPH BY THE
                    LATE MORNING.
 RIDGETOP...........NORTHWEST WINDS 10 TO 15 MPH IN THE MORNING
                    WILL BECOME SOUTHWEST 5 TO 15 MPH IN THE
                    AFTERNOON.
MIXING HEIGHT.......9700 FT AGL.
MIXING WINDS........SOUTHWEST 10 TO 20 MPH.
HAINES INDEX........4.

$$
FORECASTER...SCHULTZ
REQUESTED BY...GALEN ROESLER
TYPE OF REQUEST...WILDFIRE
.TAG 20120908.GILEA.01/BYZ