FNUS75 KRIW 191029
FWSRIW

SPOT FORECAST FOR NORTH BUFFALO...USFS BTF
NATIONAL WEATHER SERVICE RIVERTON WY
428 AM MDT WED SEP 19 2012

FORECAST IS BASED ON REQUEST TIME OF 2042 MDT ON SEPTEMBER 18.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
A DRY NORTHWEST FLOW ALOFT WILL PREVAIL OVER THE AREA INTO THE
WEEKEND. GUSTY NORTHWEST WINDS WILL CONTINUE AT TIMES...ESPECIALLY
OVER THE RIDGES AND EXPOSED LOCATIONS. LITTLE CHANGE IN TEMPERATURES
OR RELATIVE HUMIDITIES.


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

FORECASTER...SKRBAC

.TODAY...
SKY/WEATHER.........MOSTLY SUNNY WITH JUST THIN HIGH CLOUDS
                    (25-35 PERCENT).
MAX TEMPERATURE.....66-68 AT 7500 FEET AND 56-58 AROUND 10000 FEET.
MIN HUMIDITY........20-24 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH...EXCEPT AFTERNOON WEST
                    WINDS 6 TO 10 MPH IN WEST TO EAST ORIENTED VALLEYS.
RIDGE TOP WINDS.....NORTHWEST AROUND 10 MPH IN THE MORNING
                    BECOMING  WEST AROUND 10 MPH IN THE AFTERNOON.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......2000-2500 FT AGL INCREASING TO 5000-6000 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHWEST 6 TO 12 MPH.
SMOKE DISPERSAL.....POOR TO FAIR (26200-58000 KNOT-FT).

.TONIGHT...
SKY/WEATHER.........CLEAR (5-15 PERCENT).
MIN TEMPERATURE.....AROUND 30 ON THE VALLEY FLOOR AND NEAR 40 MIDSLOPE.
MAX HUMIDITY........70-80 PERCENT ON THE VALLEY FLOOR AND 35 TO 45 PERCENT
                    MID SLOPE.
20 FOOT WINDS.......NORTHWEST WINDS AROUND 8 MPH EARLY IN THE
                    EVENING BECOMING DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....NORTHWEST 10 TO 15 MPH GUSTS 20 TO 25 MPH AFTER
                    MIDNIGHT.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3000-3500 FT AGL DECREASING TO 1000-1500 FT AGL AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....NORTHWEST 8 TO 12 MPH.
SMOKE DISPERSAL.....POOR (13000-32500 KNOT-FT).

.THURSDAY...
SKY/WEATHER.........SUNNY (0-10 PERCENT).
MAX TEMPERATURE.....66-68 AT 7500 FEET AND 56-58 AROUND 10000 FEET.
MIN HUMIDITY........19-23 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH...EXCEPT AFTERNOON WEST
                    WINDS 6 TO 10 MPH IN WEST TO EAST ORIENTED VALLEYS.
RIDGE TOP WINDS.....NORTHWEST 10 TO 15 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......3300-4300 FT AGL INCREASING TO 6000-6500 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHWEST 8 TO 12 MPH.
SMOKE DISPERSAL.....POOR (36500 KNOT-FT) INCREASING TO GOOD (64000
                    KNOT-FT) IN THE AFTERNOON.

.FORECAST DAYS 3 THROUGH 5...
.THURSDAY NIGHT...CLEAR. LOWS IN THE UPPER 30S. WINDS GENERALLY
LESS THAN 10 MPH...EXCEPT NORTH TO NORTHWEST 10 TO 20 MPH OVER THE
RIDGES.
.FRIDAY...CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER 60S.
WINDS GENERALLY LESS THAN 10 MPH.
.SATURDAY...CLEAR. LOWS IN THE UPPER 30S. HIGHS AROUND 70. WINDS
GENERALLY LESS THAN 10 MPH.
.SUNDAY...MOSTLY CLEAR. LOWS IN THE LOWER 40S. HIGHS AROUND 70.
WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...SKRBAC
REQUESTED BY...PANEBAKER
REASON FOR REQUEST...WILDFIRE
.TAG 20120918.NORTH.01/RIW