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495
FNUS75 KBYZ 211355
FWSBYZ

SPOT FORECAST FOR BROKEN JAW RX...BIA NORTHERN CHEYENNE
NATIONAL WEATHER SERVICE BILLINGS MT
755 AM MDT TUE OCT 21 2014

FORECAST IS BASED ON IGNITION TIME OF 1000 MDT ON OCTOBER 21.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

WARM CONDITIONS WITH LIGHT WINDS THROUGH MID AFTERNOON. COULD SEE
AN ISOLATED WIND GUST TO 20 MPH THIS AFTERNOON DURING PEAK
HEATING. MID AND HIGH LEVEL CLOUD COVER WILL INCREASE THIS
AFTERNOON AHEAD OF AN EARLY EVENING COLD FRONT. COLD FRONT WILL
ARRIVE AROUND 7 PM AT THE BURN AREA WITH STRONG WIND GUSTS TO 40
MPH EXPECTED. ISOLATED THUNDERSTORMS ALONG AND BEHIND THE FRONT
COULD BRING STRONGER WIND GUSTS AROUND 50 MPH. LITTLE CHANCE FOR
WETTING RAIN WITH THIS QUICK MOVING SYSTEM. WINDS WILL REMAIN
ELEVATED INTO TOMORROW MORNING. BY TOMORROW AFTERNOON WINDS WILL
DIMINISH WITH COOLER AND DRY CONDITIONS.CHAMBERS

.TODAY...

SKY/WEATHER.........SUNNY...INCREASING CLOUDS IN THE AFTERNOON.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MAX TEMPERATURE.....75-80.
MIN HUMIDITY........19-24 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......SOUTHWEST WINDS 5 TO 10 MPH...ISOLATED GUSTS
                    TO 20 MPH IN THE AFTERNOON.
 RIDGETOP...........SOUTHWEST 5 TO 15 MPH.
MIXING HEIGHT.......8400 FT AGL.
MIXING WINDS........SOUTHWEST 5 TO 15 MPH.
HAINES INDEX........4.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY. ISOLATED THUNDERSTORMS
                    IN THE EVENING...THEN ISOLATED RAIN SHOWERS
                    OVERNIGHT. COLD FRONT PASSAGE AROUND 7 PM.
CWR.................10 PERCENT.
LAL.................2...1 TO 8 STRIKES/15 MIN/CELL IN THE EVENING
                    DECREASING TO 1...NO THUNDERSTORMS OVERNIGHT.
MIN TEMPERATURE.....42-47.
MAX HUMIDITY........65-72 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......WEST TO NORTHWEST WINDS 15 TO 30 MPH WITH GUSTS
                    TO AROUND 40 MPH IN THE LATE EVENING AND OVERNIGHT.
                    GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS
                    IN THE EVENING.
 RIDGETOP...........WEST TO NORTHWEST 15 TO 30 MPH.
MIXING HEIGHT.......2900 FT AGL.
MIXING WINDS........NORTHWEST 15 TO 30 MPH.
HAINES INDEX........3.

.WEDNESDAY...

SKY/WEATHER.........MOSTLY SUNNY. ISOLATED RAIN SHOWERS IN THE
                    MORNING.
CWR.................5 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MAX TEMPERATURE.....60-65.
MIN HUMIDITY........33-38 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......WEST WINDS 10 TO 20 MPH IN THE MORNING DECREASING
                    TO 5 TO 15 MPH IN THE AFTERNOON.
 RIDGETOP...........WEST 15 TO 30 MPH...DECREASING TO 5 TO 15 MPH IN
                    THE AFTERNOON.
MIXING HEIGHT.......6700 FT AGL.
MIXING WINDS........WEST 15 TO 25 MPH.
HAINES INDEX........3.


$$
FORECASTER...CHAMBERS
REQUESTED BY...LEE OLD BEAR
TYPE OF REQUEST...PRESCRIBED
.TAG 20141021.BROKE.01/BYZ




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