FNUS75 KRIW 041420
FWSRIW

SPOT FORECAST FOR BLACK BUTTE...USFS SHF
NATIONAL WEATHER SERVICE RIVERTON WY
820 AM MDT SAT AUG 4 2012

FORECAST IS BASED ON REQUEST TIME OF 0802 MDT ON AUGUST 04.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...CLEAR AND DRY WITH A WARMING TREND OVER THE WEEKEND WITH
GENERALLY DIURNALLY DRIVEN WINDS. HOWEVER...RELATIVE HUMIDITIES WILL
LOWER A BIT ON SUNDAY. MONSOONAL MOISTURE WILL RETURN ON MONDAY WITH
AN INCREASING CHANCE OF MAINLY AFTERNOON AND EVENING THUNDERSTORMS.


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

FORECASTER...HATTINGS

.TODAY...
SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT).
MAX TEMPERATURE.....62-66.
MIN HUMIDITY........20-25 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 4-8 MPH. GUSTS UP TO 12 MPH
                    IN THE AFTERNOON.
RIDGE TOP WINDS.....WEST 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.

.TONIGHT...
SKY/WEATHER.........CLEAR (0-10 PERCENT).
MIN TEMPERATURE.....45 TO 50.
MAX HUMIDITY........45-50 PERCENT.
20 FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-8 MPH.
RIDGE TOP WINDS.....WEST AROUND 5 MPH...THEN BECOMING SOUTH 5 TO
                    10 MPH AFTER MIDNIGHT.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.

.SUNDAY...
SKY/WEATHER.........SUNNY (0-5 PERCENT).
MAX TEMPERATURE.....70-75.
MIN HUMIDITY........10-15 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....WEST 5 TO 10 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.

.FORECAST DAYS 3 THROUGH 5...
.SUNDAY NIGHT...CLEAR. LOWS IN THE MID 50S. WINDS GENERALLY LESS
THAN 10 MPH.
.MONDAY...PARTLY CLOUDY WITH SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS IN THE LOWER 50S. HIGHS IN THE MID 70S. WINDS GENERALLY LESS
THAN 10 MPH.
.TUESDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 50S. HIGHS IN THE LOWER 70S. WINDS
GENERALLY LESS THAN 10 MPH.
.WEDNESDAY...PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS IN THE MID 50S. HIGHS IN THE MID 70S. WINDS
GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...HATTINGS
REQUESTED BY...CDC
REASON FOR REQUEST...WILDFIRE
.TAG 20120804.BLACK.01/RIW