FNUS75 KBYZ 211747
FWSBYZ

SPOT FORECAST FOR STORY RX...USFS BHF
NATIONAL WEATHER SERVICE BILLINGS MT
1147 AM MDT SAT MAR 21 2009

FORECAST IS BASED ON IGNITION TIME OF 1100 MDT ON MARCH 21.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
SCATTERED CUMULUS OVER THE BIG HORN MOUNTAINS COULD DEVELOP INTO A
FEW THUNDERSTORMS LATER THIS AFTERNOON AND EVENING...BUT THE
CHANCES OF THIS ARE NOT VERY GOOD. BETTER CHANCE OF SHOWERS WILL
BE SUNDAY AFTERNOON AS A FAIRLY STRONG COLD FRONT PUSHES DOWN FROM
THE NORTHWEST. PRIOR TO THIS FRONT...SOUTHWEST WINDS WILL BE
INCREASING ALONG THE RIDGETOPS. IN FACT...A PERIOD OF ENHANCED
WINDS DOWN THE SOUTH PINEY CREEK VALLEY IS POSSIBLE OVERNIGHT
TONIGHT INTO SUNDAY...WITH GUSTS IN EXCESS OF 20 MPH POSSIBLE. DUE
TO THESE INCREASED WINDS...HUMIDITY RECOVERIES WILL BE RATHER POOR
TONIGHT.

.TODAY...

SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS AND
                    THUNDERSTORMS AFTER 3PM. GUSTY AND ERRATIC
                    WINDS NEAR THUNDERSTORMS.
MAX TEMPERATURE.....65-69.
MIN HUMIDITY........18-23 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......S-SW 6-12 MPH WITH AFTERNOON GUSTS TO 18 MPH.
 RIDGETOP...........SW 15-25 MPH.
MIXING HEIGHT.......12000 FT AGL.
MIXING WINDS........SOUTHWEST 15-25 MPH.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY. ISOLATED SHOWERS AND
                    THUNDERSTORMS IN THE EVENING. GUSTY AND
                    ERRATIC WINDS NEAR THUNDERSTORMS.
MIN TEMPERATURE.....41-46.
MAX HUMIDITY........40-50 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......SW 8-15 MPH. GUSTS TO 25 MPH POSSIBLE DOWN
                    THE VALLEY OVERNIGHT.
 RIDGETOP...........SOUTHWEST 15-25 MPH.
MIXING HEIGHT.......FALLING TO 1000 FT AGL.
MIXING WINDS........SOUTHWEST 15-20 MPH.

.SUNDAY...

SKY/WEATHER.........MOSTLY CLOUDY. ISOLATED SHOWERS IN THE
                    MORNING...THEN SCATTERED SHOWERS AND
                    THUNDERSTORMS IN THE AFTERNOON. GUSTY WINDS
                    NEAR THUNDERSTORMS.
MAX TEMPERATURE.....62-67.
MIN HUMIDITY........23-28 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......SW 10-17 MPH WITH GUSTS TO 25 MPH...SHIFTING
                    TO THE W-NW AROUND MID AFTERNOON.
 RIDGETOP...........SOUTHWEST 20-30 MPH.
MIXING HEIGHT.......10000 FT AGL.
MIXING WINDS........SOUTHWEST 25-30 MPH.

$$
FORECASTER...LESTER
REQUESTED BY...CODY DISPATCH
TYPE OF REQUEST...PRESCRIBED
.TAG 20090321.STROR.01/BYZ