FNUS75 KRIW 030040
FWSRIW

SPOT FORECAST FOR WILLOW DRAW WF...NPS GTP
NATIONAL WEATHER SERVICE RIVERTON WY
640 PM MDT SAT OCT 2 2010

FORECAST IS BASED ON REQUEST TIME OF 1741 MDT ON OCTOBER 02.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...AN UPPER RIDGE OF HIGH PRESSURE THAT HAS PREVAILED ALONG
WITH UNSEASONABLY WARM AND DRY WEATHER...WILL BEGIN TO WEAKEN
AND SHIFT EAST TOMORROW. TEMPERATURE AND RELATIVE HUMIDITY WILL
SHOW LITTLE 24 HOUR TREND ON SUNDAY. UPSTREAM...A PACIFIC STORM
SYSTEM WILL DIG INTO THE SOUTHWEST U.S. AND BRING INCREASING HIGH
CLOUDS SUNDAY AFTERNOON WITH ISOLATED SHOWERS AND POSSIBLY A
THUNDERSTORM PUSHING INTO THE AREA MONDAY...ALONG WITH COOLER
TEMPERATURES AND HIGHER RELATIVE HUMIDITY. SOUTHERLY WINDS WILL
ALSO PICK UP MONDAY. UNSETTLED WEATHER WITH TEMPERATURES MORE NEAR
SEASONAL NORMALS WILL PREVAIL THIS UPCOMING WEEK.
HOWEVER...SHOWERS ARE EXPECTED TO REMAIN SPOTTY AND LIGHT WITH
SLIM CHANCES OF RECEIVING A WETTING RAIN.


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

FORECASTER...MEUNIER

.TONIGHT...
SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT).
MIN TEMPERATURE.....37-40.
MAX HUMIDITY........62-65 PERCENT.

20 FOOT WINDS.......WINDS BECOMING DOWNSLOPE OR EAST NORTHEAST 4-7 MPH
                    OVERNIGHT.
RIDGE TOP WINDS.....WEST NORTHWEST 5 TO 10 MPH...GRADUALLY VEERING
                    TO THE WEST SOUTHWEST OVERNIGHT.

LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.

MIXING HEIGHT.......2200-3200 FT AGL DECREASING TO BELOW 300 FT AGL AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....WEST SOUTHWEST AROUND 5 MPH.
SMOKE DISPERSAL.....POOR.

.SUNDAY...
SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT) THEN BECOMING
                    PARTLY CLOUDY (40-50 PERCENT) IN THE AFTERNOON.
MAX TEMPERATURE.....74-77.
MIN HUMIDITY........15-18 PERCENT.
20 FOOT WINDS.......EAST NORTHEAST 4 TO 7 MPH IN THE MORNING BECOMING
                    UPSLOPE OR WEST SOUTHWEST IN THE AFTERNOON.

RIDGE TOP WINDS.....SOUTH SOUTHWEST AROUND 5 MPH IN THE MORNING BECOMING
                    SOUTHWEST AROUND 10 MPH IN THE AFTERNOON.

LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE
GROWTH.

MIXING HEIGHT.......2200-3200 FT AGL INCREASING TO 7100-8100 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTH SOUTHWEST 5 TO 10 MPH.
SMOKE DISPERSAL.....POOR INCREASING TO GOOD IN THE AFTERNOON.

.FORECAST DAYS 3 THROUGH 5...
.SUNDAY NIGHT...PARTLY CLOUDY. LOWS IN THE UPPER 30S. WINDS
GENERALLY LESS THAN 10 MPH.

.MONDAY...COOLER. MOSTLY CLOUDY WITH ISOLATED SHOWERS AND
POSSIBLY AN AFTERNOON THUNDERSTORM. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER
60S. SOUTH TO SOUTHWEST WIND 10 TO 15 MPH IN THE AFTERNOON.

.TUESDAY...COOLER. PARTLY CLOUDY. ISOLATED RAIN SHOWERS.
LOWS IN THE MID 30S. HIGHS IN THE UPPER 50S. WINDS GENERALLY LESS THAN 10 MPH.

.WEDNESDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS.
LOWS IN THE LOWER 30S. HIGHS IN THE UPPER 50S. WINDS GENERALLY
LESS THAN 10 MPH.

.THURSDAY...PARTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE
LOWER 60S. WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...MEUNIER
REQUESTED BY...ICT4
REASON FOR REQUEST...WILDFIRE
.TAG 20101002.WILLO.01/RIW