FNUS75 KRIW 061213
FWSRIW

SPOT FORECAST FOR NEW BOOT FIRE...USFS BTF
NATIONAL WEATHER SERVICE RIVERTON WY
613 AM MDT SUN SEP 6 2009

FORECAST IS BASED ON REQUEST TIME OF 2104 MDT ON SEPTEMBER 05.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
WEATHER DISTURBANCE MOVING THROUGH TODAY WILL KEEP A PARTLY TO
MOSTLY CLOUDY SKY WITH ISOLATED SHOWERS AND THUNDERSTORMS TO THE
AREA. THE MAIN THREAT FROM THESE THUNDERSTORMS WILL BE THE POTENTIAL
FOR WIND GUSTS OF 30 TO 40 MPH AND CLOUD TO GROUND LIGHTNING. A
COLD FRONT APPROACHING ON MONDAY WILL GENERALLY STAY NORTH OF THE
AREA WITH THE ONLY RESULT BEING SOME INCREASE IN SOUTHWEST WINDS.
TEMPERATURES WILL ALSO COOL ABOUT 5 TO 7 DEGREES ON MONDAY. MONDAY
IS ALSO EXPECTED TO BE DRY.

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

FORECASTER...SKRBAC

.TODAY...
SKY/WEATHER.........PARTLY TO MOSTLY CLOUDY (50-80 PERCENT). ISOLATED RAIN
                    SHOWERS UNTIL LATE AFTERNOON. ISOLATED
                    THUNDERSTORMS IN THE LATE MORNING AND EARLY
                    AFTERNOON.
MAX TEMPERATURE.....71-74.
MIN HUMIDITY........21-24 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH BECOMING SOUTHWEST 10
                    TO 13 MPH WITH HIGHER GUSTS IN THE AFTERNOON.
                    GUSTY AND ERRATIC WINDS EXPECTED NEAR
                    THUNDERSTORMS IN THE LATE MORNING AND EARLY
                    AFTERNOON.
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH.
LAL.................1 UNTIL 0900...THEN 2 UNTIL 1500...THEN 1.
CHC OF WETTING RAIN.4 PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......5500 FT AGL INCREASING TO 10000 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 13 TO 18 MPH.
SMOKE DISPERSAL.....GOOD (82250 KNOT-FT) INCREASING TO EXCELLENT
                    (152000 KNOT-FT) IN THE AFTERNOON.

.TONIGHT...
SKY/WEATHER.........PARTLY CLOUDY (50-60 PERCENT).
MIN TEMPERATURE.....49-52.
MAX HUMIDITY........57-60 PERCENT.
20 FOOT WINDS.......SOUTHWEST WINDS 8 TO 11 MPH AND GUSTY IN THE
                    EVENING AND AGAIN TOWARDS MORNING.
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH.
LAL.................1.
CHC OF WETTING RAIN.3 PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......5500 FT AGL DECREASING TO 700 FT AGL AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....SOUTH 13 TO 17 MPH.
SMOKE DISPERSAL.....GOOD (76900 KNOT-FT) DECREASING TO POOR (8800
                    KNOT-FT) AFTER MIDNIGHT.

.LABOR DAY...
SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT).
MAX TEMPERATURE.....65-68.
MIN HUMIDITY........22-25 PERCENT.
20 FOOT WINDS.......SOUTHWEST 10 TO 16 MPH.
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......3500 FT AGL INCREASING TO 6500 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.
SMOKE DISPERSAL.....GOOD TO VERY GOOD (61000-113000 KNOT-FT).

.FORECAST DAYS 3 THROUGH 5...
.MONDAY NIGHT...PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS
IN THE EVENING...THEN ISOLATED SHOWERS AFTER MIDNIGHT. LOWS IN
THE LOWER 40S. 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.
.WEDNESDAY...MOSTLY CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE
UPPER 60S. WINDS GENERALLY LESS THAN 10 MPH.
.THURSDAY...MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS IN THE LOWER
70S. WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...SKRBAC
REQUESTED BY...LOCKWOOD
REASON FOR REQUEST...WILDFIRE
.TAG 20090905.NEWBO.01/RIW