FNUS75 KRIW 311514
FWSRIW

SPOT FORECAST FOR FAIRFIELD...USFS
NATIONAL WEATHER SERVICE RIVERTON WY
914 AM MDT WED JUL 31 2013

FORECAST IS BASED ON REQUEST TIME OF 0837 MDT ON JULY 31.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

A FEW UPPER LEVEL DISTURBANCES WILL ROTATE ACROSS THE
FORECAST AREA TODAY...ONE THIS MORNING...ANOTHER THIS AFTERNOON...
AND YET ANOTHER OVERT NIGHT. ATMOSPHERIC MOISTURE ON THE OTHER HAND
WILL BE ON THE DECREASE THROUGH THE DAY AS UPPER LEVEL RIDGING
CONTINUES TO PROGRESS AND GENERAL SOUTHWESTERLY FLOW BEGINS TO
OVERRUN THE REGION. TAKEN ALL TOGETHER...CHANCES FOR ISOLATED
TO WIDELY SCATTERED SHOWERS OR THUNDERSTORMS CAN BE EXPECTED
WITH THE MAIN CONCERN BEING GUSTY ERRATIC WINDS AND RAIN TOTALS
GENERALLY LESS THAN .15 OF AN INCH AT BEST. THURSDAY CHANCES FOR
SHOWERS OR THUNDER WILL BE MINIMAL.

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

FORECASTER...BRAUN

.TODAY...
SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT) THEN BECOMING
                    PARTLY CLOUDY (50-60 PERCENT). ISOLATED SHOWERS
                    AND THUNDERSTORMS.
MAX TEMPERATURE.....73-80.
MIN HUMIDITY........18-23 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH BECOMING SOUTHWEST
                    10 TO 15 MPH BY EARLY AFTERNOON. GUSTY
                    AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS.
RIDGE TOP WINDS.....WEST TO SOUTHWEST AROUND 20 TO 25 MPH.
LAL.................1 UNTIL 1200...THEN 2.
CHC OF WETTING RAIN.4 PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3700-4700 FT AGL INCREASING TO 7500-8500 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....WEST SOUTHWEST 25 MPH.
SMOKE DISPERSAL.....FAIR TO GOOD (50400-89100 KNOT-FT).

.TONIGHT...
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT). ISOLATED SHOWERS
                    AND THUNDERSTORMS IN THE EVENING.
MIN TEMPERATURE.....46-56.
MAX HUMIDITY........57-67 PERCENT.
20 FOOT WINDS.......WEST WINDS 8 TO 10 MPH WITH GUSTS TO AROUND 15
                    MPH EARLY IN THE EVENING BECOMING
                    NORTH TO NORTHEAST 4-7 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS IN THE
                    EVENING.
RIDGE TOP WINDS.....WEST TO SOUTHWEST AROUND 15 TO 20 MPH.
LAL.................2 UNTIL 2400...THEN 1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......8000-9000 FT AGL DECREASING TO 4400-5400 FT AGL
                    AFTER MIDNIGHT.
TRANSPORT WINDS.....SOUTHWEST AROUND 15 TO 20 MPH.
SMOKE DISPERSAL.....POOR TO GOOD (21000-60100 KNOT-FT).

.THURSDAY...
SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT). ISOLATED SHOWERS
                    AND THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....73-80.
MIN HUMIDITY........20-23 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH BECOMING WEST 16 TO 17
                    MPH WITH GUSTS TO AROUND 30 MPH LATE IN THE
                    AFTERNOON. GUSTY AND ERRATIC WINDS EXPECTED
                    NEAR THUNDERSTORMS IN THE AFTERNOON.
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH INCREASING TO WEST
                    AROUND 25 MPH LATE IN THE AFTERNOON.
LAL.................1 UNTIL 1200...THEN 2.
CHC OF WETTING RAIN.3 PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......4200-5200 FT AGL INCREASING TO 7600-8600 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 9 TO 17 MPH INCREASING TO WEST AROUND
                    28 MPH LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....FAIR (51900 KNOT-FT) INCREASING TO EXCELLENT
                    (150000 KNOT-FT) IN THE AFTERNOON.

.FORECAST DAYS 3 THROUGH 5...
.THURSDAY NIGHT...PARTLY CLOUDY. SCATTERED SHOWERS AND
THUNDERSTORMS IN THE EVENING. LOWS IN THE LOWER 50S. WINDS
GENERALLY LESS THAN 10 MPH.
.FRIDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 70S.
WINDS GENERALLY LESS THAN 10 MPH.
.SATURDAY...MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE
UPPER 70S. WINDS GENERALLY LESS THAN 10 MPH.
.SUNDAY...MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER
70S. WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...BRAUN
REQUESTED BY...MCWILLIAMS
REASON FOR REQUEST...WILDFIRE
.TAG 20130731.FAIRF.01/RIW