FNUS75 KRIW 051430
FWSRIW

SPOT FORECAST FOR KLONDIKE...USFS BTF
NATIONAL WEATHER SERVICE RIVERTON WY
830 AM MDT THU AUG 5 2010

FORECAST IS BASED ON IGNITION TIME OF 1520 MDT ON AUGUST 02.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...AFTER A SUNNY START TO THE DAY...CLOUDS WILL BEGIN
BUILDING OVER THE MOUNTAINS LATER THIS MORNING TURNING TO SCATTERED
SHOWERS AND THUNDERSTORMS DURING THE AFTERNOON AND CONTINUING INTO
THE EVENING AND OVERNIGHT. A CHANCE OF SHOWERS AND THUNDERSTORMS WILL
CONTINUE THROUGH THE DAY FRIDAY. GENERALLY LIGHT WINDS THIS MORNING WILL
BECOME GUSTY AND ERRATIC NEAR ANY SHOWERS OR THUNDERSTORMS THIS AFTERNOON
AND EVENING. SOUTH TO SOUTHWEST WINDS WILL LIKELY INCREASE ON FRIDAY AS
THE WINDS ALOFT INCREASE.

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

FORECASTER...SKRBAC

.TODAY...
SKY/WEATHER.........SUNNY (5-10 PERCENT) THEN BECOMING
                    MOSTLY CLOUDY (60-70 PERCENT) DURING THE
                    AFTERNOON. SCATTERED AFTERNOON SHOWERS AND
                    THUNDERSTORMS.
MAX TEMPERATURE.....70-73.
MIN HUMIDITY........24-27 PERCENT.
WIND (20 FT)........SOUTH 5-9 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS IN THE AFTERNOON.
RIDGE TOP WINDS.....SOUTHWEST 5 TO 10 MPH.
LAL.................1...BECOMING 2 AFTER 1200L AND 4 AFTER 1500L.
CWR.................20 PERCENT.
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......1500-2000 FT AGL INCREASING TO 7500-8000 FT
                    AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 5 TO 12 MPH.
SMOKE DISPERSAL.....POOR IN THE MORNING BECOMING FAIR TO GOOD IN THE
                    AFTERNOON. (40000-75000 KNOT-FT).

.TONIGHT...
SKY/WEATHER.........PARTLY CLOUDY (50-60 PERCENT). SCATTERED
                    SHOWERS AND THUNDERSTORMS.
MIN TEMPERATURE.....40-43.
MAX HUMIDITY........87-90 PERCENT.
WIND (20 FT)........DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS.
RIDGE TOP WINDS.....SOUTHWEST 6 TO 12 MPH.
LAL.................4 IN THE EVENING THEN 3.
CWR.................20 PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......5000-6000 FT AGL DECREASING TO 500 FT AGL AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....SOUTH TO SOUTHWEST 8 TO 12 MPH.
SMOKE DISPERSAL.....FAIR IN THE EVENING (50000 KNOT-FT) THEN BECOMING POOR
                    (5000 KNOT-FT).

.FRIDAY...
SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT). SCATTERED
                    SHOWERS AND THUNDERSTORMS.
MAX TEMPERATURE.....AROUND 70.
MIN HUMIDITY........26-29 PERCENT.
WIND (20 FT)........SOUTH TO SOUTHWEST 6-12 MPH WITH AFTERNOON GUSTS
                    OF 15-18 MPH. GUSTY AND ERRATIC WINDS EXPECTED
                    NEAR THUNDERSTORMS.
RIDGE TOP WINDS.....SOUTH TO SOUTHWEST 8 TO 16 MPH.
LAL.................3 IN THE MORNING THEN 4.
CWR.................20 PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3900-4900 FT AGL INCREASING TO 8500-9000 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTH 8 TO 14 MPH.
SMOKE DISPERSAL.....FAIR IN THE MORNING INCREASING TO GOOD
                    IN THE AFTERNOON. (45000-90000 KNOT-FT).

.FORECAST DAYS 3 THROUGH 5...
.FRIDAY NIGHT...PARTLY CLOUDY WITH ISOLATED SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 40S. WINDS GENERALLY LESS THAN
10 MPH.
.SATURDAY...PARTLY CLOUDY WITH ISOLATED SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE UPPER 60S.
WINDS GENERALLY LESS THAN 10 MPH.
.SUNDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE LOWER 70S.
WINDS GENERALLY LESS THAN 10 MPH.
.MONDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS AROUND 70. WINDS
GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...SKRBAC
REQUESTED BY...SMITH
REASON FOR REQUEST...PRESCRIBED
.TAG 20100802.KLOND.01/RIW