FNUS75 KRIW 301251
FWSRIW

SPOT FORECAST FOR NEW BOOT...BRIDGER TETON NATIONAL FOREST
NATIONAL WEATHER SERVICE RIVERTON WY
651 AM MDT SUN AUG 30 2009

FORECAST IS BASED ON REQUEST TIME OF 2005 MDT ON AUGUST 29.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
UPPER LOW PRESSURE CENTER OVER WESTERN IDAHO WILL MOVE SLOWLY EAST
TODAY. AS IT DOES...MOISTURE WILL INCREASE OVER WESTERN WYOMING WITH
SCATTERED SHOWERS AND THUNDERSTORMS DEVELOPING LATER THIS AFTERNOON.
EAST SURFACE WINDS WILL SHIFT TO A SOUTHERLY DIRECTION BY
AFTERNOON. WINDS SHOULD REMAIN NEAR 10 MPH EXCEPT NEAR ANY STORMS
WHERE GUSTS UP TO 45 MPH ARE POSSIBLE. THE STORM THREAT WILL
DECREASE LATER THIS EVENING...BUT A SMALL THREAT FOR SHOWERS WILL
EXIST AFTER MIDNIGHT. UNSTABLE WEATHER WILL REMAIN THROUGH MONDAY.

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

FORECASTER...LYNOTT

.TODAY...
SKY/WEATHER.........PARTLY CLOUDY (50-60 PERCENT) THEN BECOMING
                    MOSTLY CLOUDY (60-70 PERCENT). ISOLATED SHOWERS
                    AND THUNDERSTORMS IN THE MORNING...THEN
                    SCATTERED SHOWERS AND THUNDERSTORMS IN THE
                    AFTERNOON.
MAX TEMPERATURE.....75-78.
MIN HUMIDITY........21-24 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS.
RIDGE TOP WINDS.....EAST AROUND 10 MPH SHIFTING TO THE SOUTH IN THE
                    AFTERNOON.
LAL.................2 UNTIL 1200...THEN 4.
CHC OF WETTING RAIN.9 PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.

.TONIGHT...
SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT). ISOLATED SHOWERS
                    AND THUNDERSTORMS IN THE EVENING...THEN
                    SCATTERED RAIN SHOWERS AND ISOLATED
                    THUNDERSTORMS AFTER MIDNIGHT.
MIN TEMPERATURE.....AROUND 50.
MAX HUMIDITY........87-90 PERCENT.
20 FOOT WINDS.......SOUTHWEST WINDS AROUND 8 MPH WITH GUSTS TO
                    AROUND 15 MPH EARLY IN THE EVENING BECOMING
                    DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH SHIFTING TO THE NORTHEAST
                    AFTER MIDNIGHT...THEN SHIFTING TO THE SOUTHWEST
                    EARLY IN THE MORNING.
LAL.................2.
CHC OF WETTING RAIN.7 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.

.MONDAY...
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). CHANCE OF RAIN
                    SHOWERS IN THE MORNING. SLIGHT CHANCE OF
                    THUNDERSTORMS THROUGH THE DAY. SLIGHT CHANCE OF
                    RAIN SHOWERS IN THE AFTERNOON.
MAX TEMPERATURE.....66-69.
MIN HUMIDITY........44-47 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH BECOMING WEST AROUND
                    15 MPH WITH HIGHER GUSTS LATE IN THE AFTERNOON.
                    GUSTY AND ERRATIC WINDS EXPECTED NEAR
                    THUNDERSTORMS.
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH SHIFTING TO THE WEST
                    AROUND 20 MPH LATE IN THE AFTERNOON.
LAL.................2.
CHC OF WETTING RAIN.8 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.

.FORECAST DAYS 3 THROUGH 5...
.MONDAY NIGHT...PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. LOWS IN THE LOWER 40S. WINDS
GENERALLY LESS THAN 10 MPH.
.TUESDAY...MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S. WINDS
GENERALLY LESS THAN 10 MPH.
.WEDNESDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF AFTERNOON SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 70S.
WINDS GENERALLY LESS THAN 10 MPH.
.THURSDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN AND ISOLATED
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE MID 70S. WINDS
GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...LYNOTT
REQUESTED BY...IC MCFARLAND
REASON FOR REQUEST...WILDFIRE
.TAG 20090829.NEWBO.01/RIW