FNUS75 KRIW 251053
FWSRIW

SPOT FORECAST FOR BEAVER MOUNTAIN RX...USFS BTF
NATIONAL WEATHER SERVICE RIVERTON WY
453 AM MDT THU APR 25 2013

FORECAST IS BASED ON IGNITION TIME OF 1130 MDT ON APRIL 25.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

DRY AND MILD CONDITIONS WILL PREVAIL ACROSS THE BURN SITE THROUGH
SATURDAY. WINDS WILL PRIMARILY BE TERRAIN DRIVEN THROUGH THE PERIOD.
ACROSS MUCH OF THE BEAVER MOUNTAIN UNIT...THIS SHOULD RESULT IN
MAINLY WEST TO NORTHWEST UPSLOPE/UPVALLEY WINDS BETWEEN 10 AM AND
8 PM...AND EASTERLY DOWNSLOPE/DOWNVALLEY WINDS AT NIGHT AND EARLY
MORNING. THE MAIN EXCEPTION WILL BE NORTH OF THE PREFERRED HOLDING
LINE...TOWARDS THE BRYAN FLATS RAWS SITE WHERE WINDS WILL
OCCASIONAL GO SOUTHWEST IN THE AFTERNOON.

...THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS...
...HAINES INDEX IS HIGH LEVEL HAINES BOTH DAY AND NIGHT...

FORECASTER...MURRELL

.TODAY...
SKY/WEATHER.........VARIABLE HIGH CLOUDINESS (20-45 PERCENT).
MAX TEMPERATURE.....53-58.
MIN HUMIDITY........16-21 PERCENT ALL ELEVATIONS.
20 FOOT WINDS.......BECOMING WEST/NORTHWEST 5-10 MPH BY AROUND
                    10 AM. GUSTS AROUND 15 MPH.
RIDGE TOP WINDS.....WEST SOUTHWEST 10-15 MPH...INCREASING TO
                    15 MPH IN THE AFTERNOON.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......1800 FT AGL INCREASING TO 6500 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....WEST SOUTHWEST 10-15 MPH...BECOMING WEST
                    15-20 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR INCREASING TO FAIR BY NOON...THEN
                    GOOD BY 2 PM.

.TONIGHT...
SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT).
MIN TEMPERATURE.....25 AT 6000 FT.  32 AT 8000 FT.
MAX HUMIDITY........75 PERCENT AT 6000 FT. 50 PERCENT AT 8000 FT.
20 FOOT WINDS.......DOWNSLOPE/DOWNVALLEY OR EAST NORTHEAST 4-7 MPH.
RIDGE TOP WINDS.....WEST 10-15 MPH SHIFTING TO THE NORTHWEST 5-10
                    MPH AROUND MIDNIGHT.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3800-4800 FT AGL DECREASING TO 800 FT AGL
                    BY 9 PM.
TRANSPORT WINDS.....WEST 10-15 MPH...BECOMING EAST 4-8 MPH
                    BY 9 PM.
SMOKE DISPERSAL.....DECREASING TO POOR BY 9 PM.

.FRIDAY...
SKY/WEATHER.........SUNNY (0-10 PERCENT).
MAX TEMPERATURE.....60-65.
MIN HUMIDITY........15-20 PERCENT.
20 FOOT WINDS.......BECOMING UPSLOPE/UPVALLEY 5-9 MPH AROUND 10 AM.
RIDGE TOP WINDS.....WEST NORTHWEST 5-10 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......5500 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....WEST NORTHWEST AROUND 10 MPH.
SMOKE DISPERSAL.....POOR INCREASING TO FAIR BY NOON.

.FORECAST DAYS 3 THROUGH 5...

.FRIDAY NIGHT...CLEAR. LOWS AROUND 30. WINDS GENERALLY LESS THAN
10 MPH.

.SATURDAY...MOSTLY CLEAR. HIGHS IN THE UPPER 50S. WINDS GENERALLY
LESS THAN 10 MPH.

.SUNDAY...PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS IN THE
LOWER 30S. HIGHS IN THE UPPER 50S. WINDS GENERALLY LESS THAN
10 MPH.

.MONDAY...PARTLY CLOUDY...BREEZY WITH A SLIGHT CHANCE OF SHOWERS
AND ISOLATED THUNDERSTORMS. LOWS IN THE MID 30S. HIGHS IN THE MID
50S. WESTERLY WINDS 10-20 MPH. GUSTS TO 30 MPH.

$$

FORECASTER...MURRELL
REQUESTED BY...STEVE MARKASON
REASON FOR REQUEST...PRESCRIBED
.TAG 20130425.BEAVE.02/RIW