FNUS75 KBYZ 281506
FWSBYZ

SPOT FORECAST FOR MEXICAN HILL RX...USFS BIGHORN NF
NATIONAL WEATHER SERVICE BILLINGS MT
906 AM MDT TUE SEP 28 2010

FORECAST IS BASED ON IGNITION TIME OF 1100 MDT ON SEPTEMBER 29.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
LOOK FOR WARM AND DRY CONDITIONS WITH WEST WINDS AND MINIMUM
HUMIDITIES IN THE TEENS TODAY. A WEAK COLD FRONT LATE TONIGHT WILL
BRING COOLER TEMPS AND HIGHER HUMIDITIES ON WEDNESDAY. THIS FRONT
WILL BE DRY AND WILL NOT PRODUCE TOO MUCH WIND...BUT A PERIOD OF
NORTHEAST WINDS IS POSSIBLE EARLY WEDNESDAY BEFORE TYPICAL SLOPE
AND VALLEY WINDS TAKE OVER WEDNESDAY AFTERNOON. JKL


.TODAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MAX TEMPERATURE.....67-72.
MIN HUMIDITY........14-19 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......WEST 10-15 MPH WITH AFTERNOON GUSTS TO 20 MPH.
 RIDGETOP...........WEST 10-20 MPH.
MIXING HEIGHT.......5000 FT AGL.
MIXING WINDS........WEST 20 MPH.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MIN TEMPERATURE.....45-50.
MAX HUMIDITY........45-55 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......WEST TO NORTHWEST 5-15 MPH TURNING NORTHEAST
                    LATE TONIGHT.
 RIDGETOP...........WEST TO NORTHWEST 10-20 MPH TURNING NORTH
                    LATE TONIGHT.
MIXING HEIGHT.......FALLING TO 500 FT AGL.
MIXING WINDS........NORTHWEST 15 MPH.

.WEDNESDAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MAX TEMPERATURE.....58-63.
MIN HUMIDITY........28-33 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......NORTHWEST TO NORTHEAST 5-15 MPH EARLY
                    BECOMING WEST OR UPSLOPE/UPVALLEY 5-10 MPH
                    IN THE AFTERNOON.
 RIDGETOP...........NORTHWEST 10-20 MPH BECOMING WEST IN THE
                    AFTERNOON.
MIXING HEIGHT.......3500 FT AGL.
MIXING WINDS........NORTHWEST 15 MPH.

$$
FORECASTER...LESTER
REQUESTED BY...MARVIN MATTHIESEN
TYPE OF REQUEST...PRESCRIBED
.TAG 20100929.MEXIC.01/BYZ