FNUS75 KRIW 290204
FWSRIW

SPOT FORECAST FOR NORTH BUFFALO FIRE...USFS BTF
NATIONAL WEATHER SERVICE RIVERTON WY
804 PM MDT FRI SEP 28 2012

FORECAST IS BASED ON REQUEST TIME OF 1852 MDT ON SEPTEMBER 28.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...AN UPPER LEVEL DISTURBANCE WILL SLIDE SOUTHEAST ACROSS THE
DIVIDE AROUND MIDDAY. SHOWERS WILL INCREASE AHEAD OF THIS SYSTEM
SATURDAY MORNING WITH AN ISOLATED THUNDERSTORM POSSIBLE. WIDELY
SCATTERED SHOWERS AND THUNDERSTORMS WILL CONTINUE THROUGH THE
AFTERNOON. A DRIER NORTHERLY FLOW WILL PREVAIL IN THE EVENING. A
RIDGE OF HIGH PRESSURE WILL BUILD OVER THE INTERMOUNTAIN WEST ON
SUNDAY WITH DRY AND WARMER CONDITIONS ACROSS WESTERN WYOMING.
WINDS WILL REMAIN GENERALLY LIGHT THROUGH THE WEEKEND...EXCEPT FOR
ERRATIC OUTFLOW WIND GUSTS FROM THUNDERSTORMS ON SATURDAY.

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

FORECASTER...MEUNIER

.SATURDAY...
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT).  SCATTERED SHOWERS
                    AND ISOLATED THUNDERSTORMS IN THE MORNING.
                    WIDELY SCATTERED THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....57-63 FROM 7500 TO 8500 FEET...52 TO 57 ABOVE 8500 FEET.
MIN HUMIDITY........30-34 PERCENT.

20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH OR SOUTHWEST LATE
                    MORNING...BECOMING WEST 5 TO 10 MPH WITH GUSTS TO 15 MPH
                    AROUND NOON...SHIFTING FROM THE NORTHWEST LATE AFTERNOON.
                    GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH BECOMING NORTHWEST AROUND 15 MPH
                    LATE IN THE AFTERNOON.

LAL.................2.
CHC OF WETTING RAIN.10 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2300-3300 FT AGL INCREASING TO 5600-6600 FT AGL
                    IN THE AFTERNOON.

TRANSPORT WINDS.....WEST 10 TO 15 MPH IN THE MORNING...BECOMING
                    NORTHWEST 15 TO 20 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR TO FAIR IN THE MORNING...GOOD IN THE AFTERNOON.
                    (18700-66800 KNOT-FT).

.SATURDAY NIGHT...
SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT) IN THE EVENING...THEN
                    THEN CLEARING AFTER MIDNIGHT.
MIN TEMPERATURE.....AROUND 40.
MAX HUMIDITY........67-70 PERCENT.

20 FOOT WINDS.......NORTHWEST WINDS 5 TO 10 MPH WITH GUSTS TO
                    AROUND 15 MPH EARLY IN THE EVENING BECOMING
                    DOWNSLOPE/DOWNVALLEY OR NORTH 4-7 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 15 MPH EARLY EVENING...THEN DECREASING
                    TO 5 TO 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.......5900-6900 FT AGL DECREASING TO 2500-3500 FT AGL
                    AFTER MIDNIGHT.
TRANSPORT WINDS.....NORTHWEST 15 MPH TO 20 MPH EARLY EVENING...THEN
                    DECREASING TO 5 TO 10 MPH.
SMOKE DISPERSAL.....POOR TO FAIR (10600-59100 KNOT-FT).

.SUNDAY...
SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT).
MAX TEMPERATURE.....60-65 FROM 7500 TO 8500 FEET...55 TO 60 ABOVE 8500 FEET.
MIN HUMIDITY........26-30 PERCENT.

20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH LATE MORNING AND EARLY AFTERNOON.
                    NORTHWEST 5 TO 10 MPH WITH GUSTS TO 15 MPH LATE AFTERNOON.
RIDGE TOP WINDS.....NORTHWEST 5 TO 10 MPH.

LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.

MIXING HEIGHT.......2000-3000 FT AGL INCREASING TO 4600-5600 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH...INCREASING TO 10 TO 15 MPH IN
                    THE AFTERNOON.
SMOKE DISPERSAL.....POOR TO FAIR (17500-58600 KNOT-FT).

.FORECAST DAYS 3 THROUGH 5...
.SUNDAY NIGHT...MOSTLY CLEAR. LOWS IN THE UPPER 30S. WINDS
GENERALLY LESS THAN 10 MPH.

.MONDAY...CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE MID 60S.
WINDS GENERALLY LESS THAN 10 MPH.

.TUESDAY...PARTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE LOWER
60S. WINDS GENERALLY LESS THAN 10 MPH.

.WEDNESDAY...PARTLY CLOUDY. SLIGHT CHANCE OF SNOW IN THE MORNING.
SLIGHT CHANCE OF RAIN. LOWS IN THE LOWER 30S. HIGHS IN THE MID
50S. WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...MEUNIER
REQUESTED BY...JAMIE TYSON
REASON FOR REQUEST...WILDFIRE
.TAG 20120928.NORTH.01/RIW