FNUS75 KRIW 180906
FWSRIW

SPOT FORECAST FOR GREEN...USFS BTF
NATIONAL WEATHER SERVICE RIVERTON WY
306 AM MDT SUN AUG 18 2013

FORECAST IS BASED ON REQUEST TIME OF 1635 MDT ON AUGUST 17.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...CLOUDS WILL BE ON THE INCREASE BY 1200 AS
SHOWERS AND STORMS WILL DEVELOP OVER THE HIGHER MOUNTAINS
SURROUNDING THE AREA. THE BIGGEST THREATS WILL BE THE LIGHTNING
AND THE OUTFLOW WIND GUSTS WHICH MAY REACH 45 MPH NEAR SHOWERS
OR STORMS. THE ACTIVITY WILL BE MOVING TO THE EAST...SO THE
ACTIVITY MOVING IN FROM THE WEST WILL BE THE BIG CONCERN.
TEMPERATURES WILL BE A LITTLE COOLER TODAY WITH A LITTLE HIGHER
MINIMUM RELATIVE HUMIDITY. WIND SPEEDS WILL BE SIMILAR TO
SATURDAY.

MONDAY LOOKS DRY WITH SUNSHINE AND WARM TEMPERATURES AND LOW
RELATIVE HUMIDITY ONCE AGAIN. AN AFTERNOON BREEZE WILL OCCUR
AT THE HIGHER ELEVATIONS AND EXPOSED RIDGE TOPS.


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

FORECASTER...AR

.TODAY...
SKY/WEATHER.........PARTLY CLOUDY. THEN BECOMING MOSTLY CLOUDY
                    AFTER 1200. ISOLATED SHOWERS AND THUNDERSTORMS
                    AFTER 1200.

MAX TEMPERATURE.....70-73 AT 9000 FEET.
MIN HUMIDITY........20-24 PERCENT AT 9000 FEET.

20 FOOT WINDS.......UPSLOPE/UPVALLEY AT 5 TO 9 MPH UNTIL 1200.
                    WEST TO SOUTHWEST AT 7 TO 11 MPH AFTER 1200
                    WITH GUSTS TO 15 MPH.

                    GUSTY AND ERRATIC WINDS TO 45 MPH NEAR
                    SHOWERS OR STORMS.

RIDGE TOP WINDS.....SOUTH TO SOUTHWEST AT 6 TO 10 MPH UNTIL 1200.
                    WEST TO SOUTHWEST AT 12 TO 17 MPH AFTER 1200
                    WITH GUSTS TO 23 MPH.

LAL.................1 UNTIL 1200...THEN 2.
CHC OF WETTING RAIN.5 PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......INCREASING TO 8000-9000 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTH TO SOUTHWEST AT 5 TO 10 MPH UNTIL 1200.
                    WEST AT 15 TO 20 MPH AFTER 1200.
SMOKE DISPERSAL.....INCREASING TO VERY GOOD TO EXCELLENT
                    IN THE AFTERNOON.

.TONIGHT...
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 2100 WITH ISOLATED SHOWERS
                    OR STORMS. THEN DECREASING CLOUDS AFTER 2100.

MIN TEMPERATURE.....45-48 AT 9000 FEET.
MAX HUMIDITY........46-50 PERCENT AT 9000 FEET.

20 FOOT WINDS.......WEST TO SOUTHWEST AT 5 TO 10 MPH UNTIL 2000.
                    WIND BECOMING BECOMING DOWNSLOPE/DOWNVALLEY
                    AT 4 TO 7 MPH AFTER 2000.

                    GUSTY AND ERRATIC WINDS TO 45 MPH NEAR
                    SHOWERS OR STORMS.

RIDGE TOP WINDS.....WEST TO SOUTHWEST AT 10 TO 15 MPH UNTIL 2000.
                    WEST TO SOUTHWEST AT 5 TO 10 MPH AFTER 2000.

LAL.................2 UNTIL 2100...THEN 1.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......DECREASING TO 1000-2000 FT AGL AFTER MIDNIGHT.
TRANSPORT WINDS.....WEST AROUND 15 MPH UNTIL 2100.
                    WEST TO SOUTHWEST AT 5 TO 10 MPH AFTER 2100.
SMOKE DISPERSAL.....DECREASING TO FAIR BY 2100...DECREASING TO POOR
                    AFTER MIDNIGHT.

.MONDAY...
SKY/WEATHER.........MOSTLY SUNNY IN THE MORNING.
                    BECOMING PARTLY CLOUDY IN THE AFTERNOON.

MAX TEMPERATURE.....74-77 AT 9000 FEET.
MIN HUMIDITY........14-18 PERCENT AT 9000 FEET.

20 FOOT WINDS.......UPSLOPE/UPVALLEY AT 5 TO 8 MPH UNTIL 1300.
                    SOUTH TO SOUTHWEST AT 6 TO 10 MPH AFTER 1300
                    WITH GUSTS TO 13 MPH.

RIDGE TOP WINDS.....SOUTH TO SOUTHWEST AT 5 TO 10 MPH UNTIL 1300.
                    WEST TO SOUTHWEST AT 10 TO 15 MPH AFTER 1300
                    WITH GUSTS TO 18 MPH.

LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......INCREASING TO 8700-9700 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTH TO SOUTHWEST AT 5 TO 10 MPH UNTIL 1300.
                    WEST AT 15 TO 20 MPH AFTER 1300.
SMOKE DISPERSAL.....INCREASING TO VERY GOOD TO EXCELLENT
                    IN THE AFTERNOON.

.FORECAST DAYS 3 THROUGH 5...

.MONDAY NIGHT...MOSTLY CLEAR. LOWS 43-47.
DOWNSLOPE/DOWNVALLEY WIND AT 5 TO 8 MPH AFTER SUNSET.

.TUESDAY...PARTLY CLOUDY. ISOLATED AFTERNOON AND EVENING SHOWERS
AND THUNDERSTORMS.  HIGHS 71-75.
SOUTHWEST WIND AROUND 10 MPH IN THE AFTERNOON...GUSTY NEAR
STORMS TO 40 MPH.

.WEDNESDAY...INCREASING CLOUDS WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON AND EVENING.  LOWS IN THE MID 40S.
HIGHS AROUND 70.
AFTERNOON WINDS GENERALLY LESS THAN 10 MPH...GUSTY NEAR STORMS
TO 40 MPH.

.THURSDAY...MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID TO UPPER 40S.  HIGHS 67-70.
WEST TO SOUTHWEST WINDS AROUND 10 MPH...GUSTY NEAR STORMS TO 40 MPH.

$$

FORECASTER...ROSS
REQUESTED BY...FILARDO
REASON FOR REQUEST...WILDFIRE
.TAG 20130817.GREEN.01/RIW