FNUS75 KRIW 041155
FWSRIW

SPOT FORECAST FOR NEW BOOT...USFS BTF
NATIONAL WEATHER SERVICE RIVERTON WY
555 AM MDT FRI SEP 4 2009

FORECAST IS BASED ON REQUEST TIME OF 2001 MDT ON SEPTEMBER 03.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
LIMITED MID LEVEL MOISTURE AND WEAK INSTABILITY WILL LEAD TO ISOLATED
AFTERNOON AND EVENING SHOWERS. WINDS WILL GENERALLY BE LIGHT AND DIURNALLY
DRIVEN EXCEPT GUSTY NEAR ANY STORMS. MOISTURE AND WIND WILL INCREASE OVER
THE WEEKEND AS A TROUGH OF LOW PRESSURE MOVES INTO THE PACIFIC NORTHWEST.


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

FORECASTER...SKRBAC

.TODAY...
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT) THEN BECOMING
                    PARTLY CLOUDY (50-60 PERCENT). ISOLATED SHOWERS
                    AND THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....76-79.
MIN HUMIDITY........14-17 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH ON THE VALLEY FLOOR.
                    GUSTY AND ERRATIC WINDS EXPECTED NEAR
                    THUNDERSTORMS IN THE AFTERNOON.
RIDGE TOP WINDS.....VARIABLE WIND 4-7 MPH IN THE MORNING...WEST
                    4-8 MPH IN THE AFTERNOON IN THE AFTERNOON.
LAL.................1 UNTIL 1400...THEN 2.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......4000 FT AGL INCREASING TO 10000 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....VARIABLE 4-7 MPH IN THE MORNING...SHIFTING TO
                    THE WEST AROUND 6 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR...BECOMING GOOD IN THE AFTERNOON.
                    (20000-60000 KNOT-FT).

.TONIGHT...
SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT). ISOLATED SHOWERS
                    AND THUNDERSTORMS IN THE EVENING.
MIN TEMPERATURE.....46-49.
MAX HUMIDITY........50-55 PERCENT.
20 FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH ON THE VALLEY FLOOR.
                    GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS
                    IN THE EVENING.
RIDGE TOP WINDS.....NORTHEAST 4-7 MPH...BECOMING SOUTH AFTER MIDNIGHT.
LAL.................2 UNTIL 2100...THEN 1.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......5000 FT AGL DECREASING TO 1500 FT AGL AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....NORTHEAST AROUND 5 MPH EARLY IN THE EVENING
                    BECOMING SOUTH 5 TO 7 MPH AFTER MIDNIGHT.
SMOKE DISPERSAL.....POOR (9000-25000 KNOT-FT).

.SATURDAY...
SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT). ISOLATED SHOWERS
                    AND THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....73-76.
MIN HUMIDITY........24-27 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS IN THE
                    AFTERNOON.
RIDGE TOP WINDS.....SOUTH 4-8 MPH...BECOMING 6-12 MPH IN THE AFTERNOON.
LAL.................1 UNTIL 1200...THEN 2.
CHC OF WETTING RAIN.5 PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......3500 FT AGL INCREASING TO 9000 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....SOUTH AROUND 6 MPH BECOMING 10 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (21000 KNOT-FT) INCREASING TO GOOD
                    (90000 KNOT-FT) IN THE AFTERNOON.

.FORECAST DAYS 3 THROUGH 5...
.SATURDAY NIGHT...PARTLY CLOUDY. ISOLATED SHOWERS AND
THUNDERSTORMS IN THE EVENING...THEN ISOLATED SHOWERS AFTER
MIDNIGHT. LOWS AROUND 50. WINDS GENERALLY LESS THAN 10 MPH.
.SUNDAY...PARTLY CLOUDY WITH SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S. WINDS GENERALLY LESS
THAN 10 MPH.
.LABOR DAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE MID 60S. WINDS
GENERALLY LESS THAN 10 MPH.
.TUESDAY...PARTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN THE
LOWER 60S. WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...SKRBAC
REQUESTED BY...LOCKWOOD
REASON FOR REQUEST...WILDFIRE
.TAG 20090903.NEWBO.01/RIW