FNUS75 KRIW 161746
FWSRIW

SPOT FORECAST FOR ALPINE LAKE...BIA
NATIONAL WEATHER SERVICE RIVERTON WY
1146 AM MDT THU AUG 16 2012

FORECAST IS BASED ON REQUEST TIME OF 1059 MDT ON AUGUST 16.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
A WEST TO NORTHWEST WIND WILL GRADUALLY INCREASE LATE THIS
AFTERNOON AND EARLY EVENING. HOWEVER...THE RELATIVE HUMIDITY
WILL REMAIN FAIRLY HIGH UNTIL FRIDAY MORNING. THE SKY WILL BE
CLEAR THIS EVENING AND TONIGHT. HIGH PRESSURE THEN BUILDS IN
LATER FRIDAY WITH DRY CONDITIONS AND LOWERING RELATIVE HUMIDITY
INTO THE WEEKEND.


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

FORECASTER...LYNOTT

.TODAY...
SKY/WEATHER.........MOSTLY SUNNY (15-25 PERCENT).
MAX TEMPERATURE.....67-72.
MIN HUMIDITY........24-30 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2200-3200 FT AGL INCREASING TO 6400-7400 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....WEST 12 TO 15 MPH.
SMOKE DISPERSAL.....POOR (32100 KNOT-FT) INCREASING TO GOOD (84200
                    KNOT-FT) IN THE AFTERNOON.

.TONIGHT...
SKY/WEATHER.........CLEAR (5-15 PERCENT).
MIN TEMPERATURE.....43-47.
MAX HUMIDITY........58-63 PERCENT.
20 FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 15
                    MPH EARLY IN THE EVENING THEN 15 MPH EARLY IN
                    THE MORNING.
RIDGE TOP WINDS.....NORTHWEST 7 TO 10 MPH SHIFTING TO THE WEST
                    AROUND 15 MPH EARLY IN THE MORNING.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......6800-7800 FT AGL DECREASING TO 2500-3500 FT AGL
                    AFTER MIDNIGHT.
TRANSPORT WINDS.....WEST 8 TO 15 MPH.
SMOKE DISPERSAL.....GOOD (74800 KNOT-FT) DECREASING TO POOR (23300
                    KNOT-FT) AFTER MIDNIGHT.

.FRIDAY...
SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT) THEN BECOMING
                    PARTLY CLOUDY (35-45 PERCENT). ISOLATED SHOWERS
                    AND THUNDERSTORMS LATE IN THE AFTERNOON.
MAX TEMPERATURE.....71-75.
MIN HUMIDITY........20-24 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. GUSTS UP TO 15 MPH.
                    GUSTY AND ERRATIC WINDS EXPECTED NEAR
                    THUNDERSTORMS IN THE AFTERNOON.
RIDGE TOP WINDS.....NORTHWEST 10 TO 15 MPH SHIFTING TO THE NORTH
                    LATE IN THE AFTERNOON.
LAL.................1 UNTIL 1200...THEN 2.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2600-3600 FT AGL INCREASING TO 7800-8800 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHWEST 12 TO 17 MPH SHIFTING TO THE NORTH
                    AROUND 13 MPH LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (32900 KNOT-FT) INCREASING TO GOOD (90300
                    KNOT-FT) IN THE AFTERNOON.

.FORECAST DAYS 3 THROUGH 5...
.FRIDAY NIGHT...MOSTLY CLEAR. LOWS IN THE MID 40S. WINDS GENERALLY
LESS THAN 10 MPH.
.SATURDAY...MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE MID
70S. WINDS GENERALLY LESS THAN 10 MPH.
.SUNDAY...PARTLY CLOUDY. LOWS IN THE UPPER 40S. HIGHS IN THE MID
70S. WINDS GENERALLY LESS THAN 10 MPH.
.MONDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE LOWER 70S.
WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...LYNOTT
REQUESTED BY...CAL ANACKER - IC
REASON FOR REQUEST...WILDFIRE
.TAG 20120816.ALPIN.01/RIW