FNUS75 KRIW 281742
FWSRIW

SPOT FORECAST FOR NORTH BUFFALO...USFS BTF
NATIONAL WEATHER SERVICE RIVERTON WY
1142 AM MDT TUE AUG 28 2012

FORECAST IS BASED ON IGNITION TIME OF 1135 MDT ON AUGUST 28.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.


.DISCUSSION...

WARMER AND DRIER CONDITIONS ARE EXPECTED OVER THE FIRE TODAY AS
HIGH PRESSURE BUILDS INTO THE REGION. WIND WILL INCREASE ON
WEDNESDAY AS A DISTURBANCE MOVED THROUGH SOUTHERN CANADA AND SEND
A COLD FRONT TOWARD THE AREA. THE COLD FRONT WILL REACH THE ARA
WEDNESDAY NIGHT BRINGING SLIGHTLY COOLER TEMPERATURES AND LIGHTER
WIND IN ITS WAKE.

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

FORECASTER...BERC

.TODAY...
SKY/WEATHER.........SUNNY (0-5 PERCENT) BECOMING PARTLY CLOUDY
                    (25-35 PERCENT).
MAX TEMPERATURE.....77-81 AT 7500 FT...71-75 AT 10000 FT.
MIN HUMIDITY........18-21 PERCENT AT 7500 FT...25-29 PERCENT AT 10000 FT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH BECOMING SOUTHWEST
                    AROUND 12 TO 14 MPH AFTER 1500. GUSTS UP
                    TO 20 MPH.
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3900-4900 FT AGL INCREASING TO 8500-9100 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 9 TO 15 MPH.
SMOKE DISPERSAL.....FAIR (54000 KNOT-FT) INCREASING TO VERY GOOD
                    (107000 KNOT-FT) IN THE AFTERNOON.

.TONIGHT...
SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT).
MIN TEMPERATURE.....47-52.
MAX HUMIDITY........50-53 PERCENT.
20 FOOT WINDS.......SOUTHWEST WINDS AROUND 8 MPH EARLY IN THE
                    EVENING BECOMING DOWNSLOPE/DOWNVALLEY 4-7
                    MPH...THEN BECOMING SOUTH 8 TO 9 MPH EARLY IN
                    THE MORNING. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....SOUTH 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.......4200-5200 FT AGL DECREASING TO 300 FT AGL AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....SOUTH 14 TO 18 MPH.
SMOKE DISPERSAL.....FAIR (56000 KNOT-FT) DECREASING TO POOR (3600
                    KNOT-FT) AFTER MIDNIGHT.

.WEDNESDAY...
SKY/WEATHER.........PARTLY CLOUDY (50-60 PERCENT) THEN BECOMING
                    MOSTLY CLOUDY (55-65 PERCENT).
MAX TEMPERATURE.....73-77.
MIN HUMIDITY........17-20 PERCENT.
20 FOOT WINDS.......SOUTHWEST WINDS 10 TO 17 MPH. GUSTS UP TO 25
                    MPH INCREASING TO 35 MPH IN THE AFTERNOON.
RIDGE TOP WINDS.....SOUTHWEST 15 TO 25 MPH INCREASING TO AROUND 30
                    MPH LATE IN THE AFTERNOON.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......5000-6000 FT AGL INCREASING TO 10600-11400 FT
                    AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST AROUND 17 MPH INCREASING TO 28 TO 32
                    MPH IN THE LATE MORNING AND AFTERNOON.
SMOKE DISPERSAL.....VERY GOOD (120300 KNOT-FT) INCREASING TO
                    EXCELLENT (241200 KNOT-FT) IN THE AFTERNOON.

.FORECAST DAYS 3 THROUGH 5...
.WEDNESDAY NIGHT...PARTLY CLOUDY. LOWS IN THE MID 40S.
WINDS GENERALLY LESS THAN 10 MPH.
.THURSDAY...PARTLY CLOUDY. LOWS IN THE MID 40S.
HIGHS IN THE LOWER 70S. WINDS GENERALLY LESS THAN 10 MPH.
.FRIDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S. WINDS
GENERALLY LESS THAN 10 MPH.
.SATURDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE UPPER 60S. WINDS
GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...BERC
REQUESTED BY...USFS
REASON FOR REQUEST...PRESCRIBED
.TAG 20120828.NORTH.01/RIW