FNUS75 KRIW 031648
FWSRIW

SPOT FORECAST FOR LITTLE BROWN...USFS BTF
NATIONAL WEATHER SERVICE RIVERTON WY
1048 AM MDT THU SEP 3 2009

FORECAST IS BASED ON REQUEST TIME OF 1026 MDT ON SEPTEMBER 03.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
HIGH PRESSURE OVER THE AREA WILL CONTINUE TO BRING WARMING
TEMPERATURES OVER THE FIRE TODAY...ALONG WITH DAYTIME HUMIDITY IN
THE LOW TO MID TEENS. CLOUD COVER ASSOCIATED WITH AN UPPER LEVEL
DISTURBANCE CONTINUE TO MOVE THROUGH THE UPPER GREEN RIVER BASIN
AND WILL MOVE OVER THE FIRE THIS AFTERNOON. AS THIS DISTURBANCE
MOVES FURTHER INTO WYOMING...IT WILL BRING ISOLATED SHOWERS AND
THUNDERSTORMS...WHICH MAY IMPACT THE FIRE THIS AFTERNOON. EXPECT
THREATS OF GUSTY AND ERRATIC WIND TO 40 MPH...LIGHTNING...AND
SMALL HAIL WITH ANY THUNDERSTORM ACTIVITY TODAY. SHOWER ACTIVITY
IS EXPECTED TO END BY THIS EVENING WITH HIGH PRESSURE REGAINING
CONTROL. DRY CONDITIONS EXPECT OVER NIGHT...WITH SLIGHTLY
INCREASED CLOUD COVER TO KEEP TEMPERATURES SLIGHTLY WARMER
TONIGHT. ANOTHER DISTURBANCE WILL MOVE OVER THE FIRE FRIDAY
AFTERNOON...BRINGING ANOTHER ROUND OF ISOLATED SHOWERS AND
THUNDERSTORMS.


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

FORECASTER...BRANHAM

.TODAY...
SKY/WEATHER.........SUNNY (0-10 PERCENT) THEN BECOMING PARTLY
                    CLOUDY (35-45 PERCENT) BY 1200. ISOLATED SHOWERS
                    AND THUNDERSTORMS AFTER 1400.
MAX TEMPERATURE.....73-78.
MIN HUMIDITY........12-17 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS IN THE
                    AFTERNOON.
RIDGE TOP WINDS.....WEST 4 TO 8 MPH...INCREASING TO 8 TO 12 MPH
                    BY 1400.
LAL.................1 UNTIL 1400...THEN 2.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT AFTER 1400.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.

.TONIGHT...
SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT).
MIN TEMPERATURE.....39-45.
MAX HUMIDITY........58-63 PERCENT.
20 FOOT WINDS.......BECOMING NORTHWEST 7 TO 10 MPH WITH GUSTS TO
                    AROUND 15 MPH BY 2000...THEN BECOMING
                    DOWNSLOPE/DOWNVALLEY 4-7 MPH BY 0200.
RIDGE TOP WINDS.....NORTH NORTHWEST 10 TO 15 MPH.
LAL.................1 AFTER 1800.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.

.FRIDAY...
SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT). ISOLATED SHOWERS
                    AND THUNDERSTORMS AFTER 1300.
MAX TEMPERATURE.....75-80.
MIN HUMIDITY........13-18 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS IN THE
                    AFTERNOON.
RIDGE TOP WINDS.....NORTHWEST 5 TO 10 MPH.
LAL.................1 UNTIL 1300...THEN 2.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.

.FORECAST DAYS 3 THROUGH 5...
.FRIDAY NIGHT...PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. LOWS IN THE UPPER 40S. WINDS
GENERALLY LESS THAN 10 MPH.
.SATURDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE MID 70S. WINDS
GENERALLY LESS THAN 10 MPH.
.SUNDAY...PARTLY CLOUDY WITH CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 40S. HIGHS AROUND 70. WINDS GENERALLY LESS THAN
10 MPH.
.LABOR DAY...PARTLY CLOUDY WITH CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER 60S.
WEST WINDS AROUND 10 MPH.

$$

FORECASTER...BRANHAM
REQUESTED BY...IC KABER
REASON FOR REQUEST...WILDFIRE
.TAG 20090903.LITTL.01/RIW