FNUS75 KRIW 071317
FWSRIW

SPOT FORECAST FOR 487...IA CPC
NATIONAL WEATHER SERVICE RIVERTON WY
717 AM MDT SUN AUG 7 2011

FORECAST IS BASED ON REQUEST TIME OF 0636 MDT ON AUGUST 07.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...THE MORNING WILL BE DRY WITH LIGHT WIND. THE WIND WILL
INCREASE AFTER 1100 AM. CLOUDS WILL INCREASE AFTER 200 PM WITH THE
THREAT OF A THUNDERSTORM BY 300 PM AND THIS THREAT WILL LINGER THROUGH
MIDNIGHT. SIMILAR WEATHER CONDITIONS WILL OCCUR MONDAY WITH THE THREAT
OF A FEW AFTERNOON AND EVENING THUNDERSTORMS. WIND GUSTS NEAR STORMS
WILL BE AS HIGH AS 40 MPH. RAINFALL WILL BE BRIEF WITH THE STORMS.

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

FORECASTER...AR

.TODAY...
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1300. THEN BECOMING
                    PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
                    THUNDERSTORMS AFTER 1400.
MAX TEMPERATURE.....82-86.
MIN HUMIDITY........11-16 PERCENT.
20 FOOT WINDS.......VARIABLE AT 3 TO 5 MPH UNTIL 1000...THEN WEST
                    TO SOUTHWEST AT 3 TO 6 MPH UNTIL 1200...THEN
                    WEST TO SOUTHWEST AT 8 TO 13 MPH THROUGH THE
                    AFTERNOON HOURS.

                    ERRATIC WIND DIRECTION EXPECTED NEAR THUNDERSTORMS
                    WITH WIND SPEEDS AS HIGH AS 40 MPH.

RIDGE TOP WINDS.....VARIABLE AT 4 TO 7 MPH UNTIL 1000...THEN
                    WEST TO SOUTHWEST AT 5 TO 9 MPH UNTIL 1200...
                    THEN WEST AT 10 TO 15 MPH DURING THE AFTERNOON.

                    ERRATIC WIND DIRECTION EXPECTED NEAR THUNDERSTORMS
                    WITH SPEEDS AROUND 45 MPH POSSIBLE.

LAL.................1 UNTIL 1400...THEN 2.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......INCREASING TO 13000 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....WEST AT 20 TO 25 MPH AFTER 1200.
SMOKE DISPERSAL.....INCREASING TO EXCELLENT IN THE AFTERNOON.

.TONIGHT...
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF
                    SHOWERS AND THUNDERSTORMS IN THE EVENING UNTIL
                    MIDNIGHT.
MIN TEMPERATURE.....52-56.
MAX HUMIDITY........75-78 PERCENT.

20 FOOT WINDS.......NORTHWEST WIND AT 5 TO 10 MPH WITH GUSTS TO 15 MPH.
                    VARIABLE IN DIRECTION AT 3 TO 6 MPH AFTER MIDNIGHT.

                    GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS
                    AT SPEEDS AS HIGH AS 40 MPH.

RIDGE TOP WINDS.....NORTHWEST WIND AT 7 TO 12 MPH WITH GUSTS TO 20 MPH.
                    VARIABLE IN DIRECTION AT 5 TO 9 MPH AFTER MIDNIGHT.

LAL.................2 UNTIL 2400...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 FEET AGL AFTER MIDNIGHT.

TRANSPORT WINDS.....WEST AT 20 MPH UNTIL 2100...THEN DECREASING TO
                    VARIABLE AROUND 5 MPH AFTER MIDNIGHT.

SMOKE DISPERSAL.....VERY GOOD UNTIL SUNSET...DECREASING TO POOR
                    AFTER MIDNIGHT.

.MONDAY...
SKY/WEATHER.........MOSTLY SUNNY IN THE MORNING. BECOMING PARTLY
                    CLOUDY. SLIGHT CHANCE OF SHOWERS AND
                    THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....79-82.
MIN HUMIDITY........11-16 PERCENT.

20 FOOT WINDS.......VARIABLE AT 3 TO 5 MPH UNTIL 1000.
                    THEN WEST TO NORTHWEST AT 5 TO 10 MPH AFTER 1200.

                    GUSTY AND ERRATIC WINDS EXPECTED NEAR
                    THUNDERSTORMS WITH SPEEDS AS HIGH AS 35 MPH.

RIDGE TOP WINDS.....VARIABLE AT 4 TO 7 MPH UNTIL 1000.
                    THEN WEST TO NORTHWEST 10 TO 15 MPH AFTER 1200.

                    GUSTY AND ERRATIC WINDS EXPECTED NEAR
                    THUNDERSTORMS WITH SPEEDS AS HIGH AS 40 MPH.

LAL.................1 UNTIL 1200...THEN 2.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......INCREASING TO 12000 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....WEST AT 25 MPH BY AFTERNOON.
SMOKE DISPERSAL.....POOR INCREASING TO EXCELLENT IN THE AFTERNOON.

.FORECAST DAYS 3 THROUGH 5...

.MONDAY NIGHT...MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. LOWS IN THE UPPER 40S. WINDS
GENERALLY LESS THAN 10 MPH.

.TUESDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE LOWER 80S.
WINDS GENERALLY LESS THAN 10 MPH.

.WEDNESDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 50S. HIGHS IN THE LOWER 80S. WINDS
GENERALLY LESS THAN 10 MPH.

.THURSDAY...MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE
LOWER 80S. WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...ROSS
REQUESTED BY...MARK LEE
REASON FOR REQUEST...WILDFIRE
.TAG 20110807.487__.01/RIW