FNUS75 KRIW 181031
FWSRIW

SPOT FORECAST FOR NORTH BUFFALO...USFS BTF
NATIONAL WEATHER SERVICE RIVERTON WY
431 AM MDT TUE SEP 18 2012

FORECAST IS BASED ON REQUEST TIME OF 2038 MDT ON SEPTEMBER 17.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
A DRY NORTHWEST FLOW ALOFT WILL CONTINUE OVER THE AREA INTO THE WEEKEND.
THE AIRMASS WILL BE DRIER TODAY AND WEDNESDAY COMPARED TO MONDAY. GUSTY
NORTHWEST WINDS WILL LIKELY CONTINUE OVER THE RIDGES AND EXPOSED LOCATION
AT TIMES THE NEXT SEVERAL DAYS. THESE WINDS WILL LIKELY SURFACE IN THE
LOWER ELEVATIONS AT TIMES DURING THE AFTERNOON AND EVENING.


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

FORECASTER...SKRBAC

.TODAY...
SKY/WEATHER.........SUNNY (0-10 PERCENT).
MAX TEMPERATURE.....67-69 AT 7500 FEET AND 57-59 AT 10000 FEET.
MIN HUMIDITY........18-22 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH BECOMING WEST NORTHWEST
                    AROUND 10 MPH WITH GUSTS AROUND 15 MPH IN THE AFTERNOON.
RIDGE TOP WINDS.....NORTHWEST 15 MPH WITH GUSTS TO 25 MPH SHIFTING TO THE
                    WEST AT 10 TO 20 MPH AROUND NOON.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......1500-2500 FT AGL INCREASING TO 4000-5000 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH SHIFTING TO THE WEST IN THE
                    AFTERNOON.
SMOKE DISPERSAL.....POOR BECOMING GOOD IN THE AFTERNOON (30000-67500 KNOT-FT).

.TONIGHT...
SKY/WEATHER.........CLEAR (0-10 PERCENT).
MIN TEMPERATURE.....29-32 IN LOW LYING AREAS AND 38-42 AT 10000 FEET.
MAX HUMIDITY........65-75 PERCENT LOWEST ELEVATIONS AND 40-45 PERCENT
                    MID SLOPE.
20 FOOT WINDS.......WEST NORTHWEST AROUND 9 MPH WITH GUSTS TO AROUND 15
                    MPH EARLY IN THE EVENING BECOMING DOWNSLOPE/DOWNVALLEY
                    4-7 MPH.
RIDGE TOP WINDS.....NORTHWEST 10 TO 15 MPH SHIFTING TO THE
                    SOUTHWEST AROUND 5 MPH AFTER MIDNIGHT...THEN
                    SHIFTING TO THE SOUTHEAST EARLY IN THE MORNING.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3500-4500 FT AGL DECREASING TO 1000-2000 FT AGL
                    AFTER MIDNIGHT.
TRANSPORT WINDS.....NORTHWEST 9 TO 18 MPH.
SMOKE DISPERSAL.....FAIR BECOMING POOR AFTER 2200L (48000 KNOT-FT DECREASING
                    TO 25000 KNOT-FT AFTER 2200L).

.WEDNESDAY...
SKY/WEATHER.........SUNNY (0-10 PERCENT).
MAX TEMPERATURE.....67-69 AT 7500 FEET AND 57-59 AT 10000 FEET.
MIN HUMIDITY........16-20 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH...BECOMING WEST NORTHWEST
                    AROUND 10 MPH WITH GUSTS TO 15 MPH IN THE AFTERNOON.
RIDGE TOP WINDS.....NORTHWEST 10 TO 15 MPH WITH GUSTS AROUND 20 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......2300-3300 FT AGL INCREASING TO 5500-6500 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHWEST 9 TO 10 MPH SHIFTING TO THE WEST 14
                    TO 17 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (27000 KNOT-FT) INCREASING TO GOOD (92000
                    KNOT-FT) IN THE AFTERNOON.

.FORECAST DAYS 3 THROUGH 5...
.WEDNESDAY NIGHT...CLEAR. LOWS 30 TO 40. WINDS
GENERALLY LESS THAN 10 MPH...EXCEPT GUSTY NORTHWEST OVER THE RIDGES.
.THURSDAY...CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER 60S.
WINDS GENERALLY LESS THAN 10 MPH.
.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.

$$

FORECASTER...SKRBAC
REQUESTED BY...LOOKOUT
REASON FOR REQUEST...WILDFIRE
.TAG 20120917.NORTH.01/RIW