FNUS75 KRIW 011450
FWSRIW

SPOT FORECAST FOR EMMA MATILDA...USFS BTF
NATIONAL WEATHER SERVICE RIVERTON WY
850 AM MDT WED AUG 1 2012

FORECAST IS BASED ON REQUEST TIME OF 0829 MDT ON AUGUST 01.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...AN UPPER LEVEL DISTURBANCE AND SOME LEFTOVER MONSOONAL
MOISTURE WILL BRING A SCATTERING OF SHOWERS AND THUNDERSTORMS UNTIL
AROUND 1 PM TODAY. A COLD FRONT WILL WORK INTO THE AREA AROUND NOON
TODAY AND MOVE MONSOONAL MOISTURE TO THE SOUTH OF THE AREA DURING THE
AFTERNOON AND END THE CHANCE OF SHOWERS AND THUNDERSTORMS. HIGH PRESSURE
WILL BUILD OVER THE AREA ON THURSDAY AND BRING A MAINLY DRY DAY. ANOTHER
COLD FRONT WILL MOVE THROUGH ON FRIDAY BUT LITTLE PRECIPITATION IS
EXPECTED WITH ITS PASSAGE.



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

FORECASTER...HATTINGS

.TODAY...
SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT). SCATTERED SHOWERS
                    AND THUNDERSTORMS UNTIL 1300.
MAX TEMPERATURE.....80-84.
MIN HUMIDITY........15-20 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH INCREASING TO 7-14
                    MPH AFTER 1200. GUSTY AND ERRATIC WINDS EXPECTED
                    NEAR THUNDERSTORMS UNTIL 1300.
RIDGE TOP WINDS.....SOUTHEAST 6 TO 12 MPH SHIFTING TO THE
                    SOUTHWEST IN THE LATE MORNING AND EARLY
                    AFTERNOON...THEN SHIFTING TO THE WEST 10 TO 20
                    MPH LATE IN THE AFTERNOON.
LAL.................2 UNTIL 1300...THEN 1.
CHC OF WETTING RAIN.10 PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.

.TONIGHT...
SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT).
MIN TEMPERATURE.....AROUND 50.
MAX HUMIDITY........65-70 PERCENT.
20 FOOT WINDS.......SOUTHWEST WINDS AROUND 5 TO 10 MPH WITH GUSTS TO
                    AROUND 15 MPH EARLY IN THE EVENING BECOMING
                    DOWNSLOPE/DOWNVALLEY 4-8 MPH.
RIDGE TOP WINDS.....SOUTH 10 TO 15 MPH SHIFTING TO THE SOUTHEAST
                    EARLY IN THE MORNING.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.

.THURSDAY...
SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT).
MAX TEMPERATURE.....76-80.
MIN HUMIDITY........15-20 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH BECOMING WEST
                    7-14 MPH AND GUSTY LATE IN THE AFTERNOON.
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 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...
.THURSDAY NIGHT...MOSTLY CLEAR. LOWS IN THE MID 40S. WINDS
GENERALLY LESS THAN 10 MPH.
.FRIDAY...MOSTLY CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER
70S. WINDS GENERALLY LESS THAN 10 MPH.
.SATURDAY...MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS IN THE UPPER
70S. WINDS GENERALLY LESS THAN 10 MPH.
.SUNDAY...MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE LOWER
80S. WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...HATTINGS
REQUESTED BY...TIDC
REASON FOR REQUEST...WILDFIRE
.TAG 20120801.EMMAM.01/RIW