FNUS75 KBYZ 261121
FWSBYZ

SPOT FORECAST FOR HIGH PARK...BIGHORN NATIONAL FOREST
NATIONAL WEATHER SERVICE BILLINGS MT
521 AM MDT SAT SEP 26 2009

FORECAST IS BASED ON IGNITION TIME OF 1000 MDT ON SEPTEMBER 26.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...WARM AND DRY WITH GUSTY WEST TO NORTHWEST WINDS TODAY...

...COLD FRONTAL PASSAGE TONIGHT...

...COOLER WITH GUSTY NORTHWEST WINDS SUNDAY...

.DISCUSSION...
A RELATIVELY WARM AND DRY DAY IS EXPECTED TODAY. HUMIDITIES WILL
FALL TO AROUND 20 PERCENT THIS AFTERNOON AND MAY SLIDE INTO THE
UPPER TEENS FOR A COUPLE OF HOURS. NORTHWEST WINDS THIS MORNING
WILL TURN TO MORE OF A WEST DIRECTION BY LATE MORNING. WINDS WILL
INCREASE WITH SOME GUSTS NEAR 25 MPH IN THE AFTERNOON. RIDGETOP
WINDS WILL BE STRONG. A COLD FRONT WILL PUSH THROUGH TONIGHT WITH
STRONG RIDGE TOP WINDS. SUNDAY WILL BE COOLER AND BREEZY AGAIN.
RIDGE TOP WINDS WILL BE QUITE STRONG SUNDAY. HUMIDITIES WILL BE
HIGHER ON SUNDAY. HUMPHREY

.TODAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MAX TEMPERATURE.....62-67.
MIN HUMIDITY........18-23 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......NORTHWEST WINDS 6 TO 14 MPH IN THE MORNING
                    WINDS BECOMING WEST 10 TO 18 MPH WITH GUSTS TO
    24 MPH IN THE AFTERNOON.
 RIDGETOP...........WEST TO NORTHWEST 20 TO 25 MPH.
MIXING HEIGHT.......5000 FT AGL.
MIXING WINDS........WEST 20 TO 25 MPH.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MIN TEMPERATURE.....37-42.
MAX HUMIDITY........45-50 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......NORTHWEST WINDS 6 TO 14 MPH.
 RIDGETOP...........WEST 30 TO 35 MPH.
MIXING HEIGHT.......300 FT AGL.
MIXING WINDS........WEST 15 TO 20 MPH.

.SUNDAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MAX TEMPERATURE.....49-54.
MIN HUMIDITY........33-38 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......NORTHWEST WINDS 10 TO 18 MPH WITH GUSTS TO 24 MPH.
 RIDGETOP...........WEST 35 TO 40 MPH.
MIXING HEIGHT.......5000 FT AGL.
MIXING WINDS........WEST 25 TO 30 MPH.

$$
FORECASTER...HUMPHREY
REQUESTED BY...CURTIS RASMUSON
TYPE OF REQUEST...PRESCRIBED
.TAG 20090926.HIGHP.01/BYZ