FNUS75 KRIW 311557
FWSRIW

SPOT FORECAST FOR LOST CREEK...IA TDC
NATIONAL WEATHER SERVICE RIVERTON WY
957 AM MDT FRI AUG 31 2012

FORECAST IS BASED ON REQUEST TIME OF 0933 MDT ON AUGUST 31.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

A PLUME OF MONSOON MOISTURE WILL REMAIN OVER THE AREA THROUGH
SATURDAY. SHOWERS AND THUNDERSTORMS WILL DEVELOP THIS AFTERNOON
AND COULD BE DRY AT FIRST BUT WILL TRANSITION TO WETTER STORMS
LATER IN THE AFTERNOON. GUSTY AND ERRATIC WIND TO 40 MPH CAN BE
EXPECTED WITH ANY THUNDERSTORMS IN THE AREA. A PASSING UPPER LEVEL
DISTURBANCE MAY KEEP SHOWER ACTIVITY GOING THROUGH TONIGHT WITH A
GREATER COVERAGE OF THUNDERSTORMS EXPECTED FOR SATURDAY. BY SUNDAY
ATMOSPHERIC MOISTURE WILL DECREASE AS UPPER LEVEL WINDS BECOME WESTERLY.
ISOLATED SHOWER AND THUNDERSTORM ACTIVITY IS STILL POSSIBLE BUT
COVERAGE AND THE CHANCE FOR WETTING RAIN WILL BE LESS THAN TODAY
OR SATURDAY.

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

FORECASTER...BERC

.TODAY...
SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT) BECOMING CLOUDY
                    (75-85 PERCENT) AFTER 1400. SCATTERED RAIN
                    SHOWERS THROUGH THE DAY. ISOLATED THUNDERSTORMS
                    POSSIBLE AFTER 1400.
MAX TEMPERATURE.....76-79.
MIN HUMIDITY........28-31 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. GUSTS UP TO 15 MPH
                    MAINLY AFTER 1500. GUSTY AND ERRATIC WINDS TO
                    40 MPH EXPECTED NEAR ANY THUNDERSTORMS THAT FORM.
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH.
LAL.................1 UNTIL 1400...THEN 2.
CHC OF WETTING RAIN.30 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.

.TONIGHT...
SKY/WEATHER.........CLOUDY (80-90 PERCENT). ISOLATED THUNDERSTORMS
                    POSSIBLE THROUGH 2200. SCATTERED RAIN SHOWERS THROUGH THE
                    NIGHT.
MIN TEMPERATURE.....AROUND 50.
MAX HUMIDITY........82-85 PERCENT.
20 FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS IN THE
                    EVENING.
RIDGE TOP WINDS.....SOUTH 10 TO 15 MPH.
LAL.................2 UNTIL 2400...THEN 1.
CHC OF WETTING RAIN.20 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.

.SATURDAY...
SKY/WEATHER.........CLOUDY (95-100 PERCENT). SCATTERED RAIN SHOWERS
                    IN THE MORNING...THEN NUMEROUS RAIN SHOWERS AND
                    ISOLATED THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....70-73.
MIN HUMIDITY........41-44 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH BECOMING SOUTHWEST
                    7-12 MPH AFTER 1300 . GUSTS UP TO 20 MPH.
                    GUSTY AND ERRATIC WINDS EXPECTED NEAR
                    THUNDERSTORMS IN THE AFTERNOON.
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH.
LAL.................1 UNTIL 1300...THEN 3.
CHC OF WETTING RAIN.30 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.

.FORECAST DAYS 3 THROUGH 5...
.SATURDAY NIGHT...MOSTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS IN THE EVENING...THEN ISOLATED SHOWERS AND
THUNDERSTORMS AFTER MIDNIGHT. LOWS IN THE MID 40S. WINDS
GENERALLY LESS THAN 10 MPH.
.SUNDAY...PARTLY CLOUDY WITH ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S. WINDS GENERALLY LESS
THAN 10 MPH.
.LABOR DAY...MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS IN THE
UPPER 70S. WINDS GENERALLY LESS THAN 10 MPH.
.TUESDAY...MOSTLY CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE
UPPER 70S. WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...BERC
REQUESTED BY...RAMERIZ
REASON FOR REQUEST...WILDFIRE
.TAG 20120831.LOSTC.01/RIW