FNUS75 KBYZ 151331
FWSBYZ

SPOT FORECAST FOR MEXICAN HILL...U.S. FOREST SERVICE
NATIONAL WEATHER SERVICE BILLINGS MT
731 AM MDT SUN AUG 15 2010

FORECAST IS BASED ON IGNITION TIME OF 0725 MDT ON AUGUST 15.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
WARMER AND DRIER WEATHER IS IN STORE THE NEXT COUPLE OF DAYS.
WINDS WILL BE PRIMARILY CONTROLLED BY TERRAIN WITH UPSLOPE AND
DOWNSLOPE TENDENCIES. WINDS WILL BECOME A LITTLE ERRATIC IN THE
AFTERNOON AS THE SURFACE PRESSURE GRADIENT TRIES TO PUSH THE WIND
TO THE NORTHEAST...BUT THE DIURNAL WIND WANTS TO GO UPSLOPE. THIS
WILL BE THE CASE TODAY AND MONDAY. THERE WILL BE A SLIGHT CHANCE
OF A SHOWER THE NEXT COUPLE OF DAYS...BUT THE RAIN SHOULD BE
LIMITED. TWH

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY. ISOLATED RAIN SHOWERS IN THE
                    AFTERNOON.
CWR.................9 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MAX TEMPERATURE.....60-65.
MIN HUMIDITY........35-40 PERCENT.
WIND (20 FT)........
 LWR SLP/VALLEY.....DOWNSLOPE EARLY. WINDS TURNING WEST TO SOUTHWEST
                    4 TO 12 MPH BY MID MORNING. WINDS BECOMING ERRATIC
                    IN THE AFTERNOON.
 UPR SLP/RIDGETOP...WEST TO NORTHWEST 10 TO 20 MPH.
MIXING HEIGHT.......6500 FT AGL.
MIXING WINDS........WEST 5 TO 15 MPH.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR. ISOLATED RAIN SHOWERS IN THE
                    EVENING.
CWR.................8 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MIN TEMPERATURE.....42-47.
MAX HUMIDITY........92-97 PERCENT.
WIND (20 FT)........
 LWR SLP/VALLEY.....DOWNSLOPE 2 TO 10 MPH.
 UPR SLP/RIDGETOP...WEST 5 TO 15 MPH.
MIXING HEIGHT.......800 FT AGL.
MIXING WINDS........SOUTHWEST 5 TO 15 MPH.

.MONDAY...

SKY/WEATHER.........MOSTLY SUNNY. ISOLATED SHOWERS AND
                    THUNDERSTORMS IN THE AFTERNOON.
CWR.................9 PERCENT.
LAL.................2...1 TO 8 STRIKES/15 MIN/CELL.
MAX TEMPERATURE.....62-67.
MIN HUMIDITY........33-38 PERCENT.
WIND (20 FT)........
 LWR SLP/VALLEY.....DOWNSLOPE EARLY. WINDS TURNING WEST TO SOUTHWEST
                    4 TO 12 MPH BY MID MORNING. WINDS BECOMING ERRATIC
                    IN THE AFTERNOON.
 UPR SLP/RIDGETOP...WEST TO SOUTHWEST 5 TO 15 MPH.
MIXING HEIGHT.......6500 FT AGL.
MIXING WINDS........WEST 5 TO 15 MPH.

$$
FORECASTER...HUMPHREY
REQUESTED BY...BIGHORN NF
TYPE OF REQUEST...PRESCRIBED
.TAG 20100815.MEXIC.01/BYZ