FNUS75 KRIW 260123
FWSRIW

SPOT FORECAST FOR CASTLE...IA CDC
NATIONAL WEATHER SERVICE RIVERTON WY
723 PM MDT WED AUG 25 2010

FORECAST IS BASED ON REQUEST TIME OF 1854 MDT ON AUGUST 25.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

CLEAR AND DRY CONDITIONS ARE EXPECTED TONIGHT AND THURSDAY. A STORM
SYSTEM DEVELOPING OVER THE WEST...WILL RESULT IN DEEP SOUTHWEST FLOW
DEVELOPING OVER WESTERN AND CENTRAL WYOMING THURSDAY. THIS WILL
RESULT IN BREEZY WEST TO SOUTHWEST WINDS OVER THE FIRE SITE
THURSDAY AFTERNOON...ESPECIALLY AFTER 2 PM. IN ADDITION VERY LOW
RELATIVE HUMIDITY IS EXPECTED THURSDAY AFTERNOON. AS THE STORM
SYSTEM APPROACHES THE AREA FRIDAY...WINDY WEST TO SOUTHWEST WINDS
ARE EXPECTED...BUT WITH AN INCREASED AFTERNOON RELATIVE
HUMIDITY...AROUND 20 PERCENT. THERE WILL ALSO BE INCREASING
CHANCES OF SHOWERS AND THUNDERSTORMS FROM FRIDAY INTO THE
WEEKEND.

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

FORECASTER...MURRELL

.TONIGHT...
SKY/WEATHER.........CLEAR (0-5 PERCENT).
MIN TEMPERATURE.....44-48.
MAX HUMIDITY........30-35 PERCENT.
20 FOOT WINDS.......NORTH WINDS AROUND 3-5 MPH...BECOMING
                    DOWNSLOPE/DOWNVALLEY 3-5 MPH BY 2100.
RIDGE TOP WINDS.....WEST AROUND 10 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......6200 FT AGL DECREASING TO 700 FT AGL
                    BY MIDNIGHT.
TRANSPORT WINDS.....WEST AROUND 10 MPH.
SMOKE DISPERSAL.....GOOD DECREASING TO POOR BY 2100.

.THURSDAY...
SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT).
MAX TEMPERATURE.....72-76.
MIN HUMIDITY........12-16 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 4-8 MPH BY AROUND 1000...THEN
                    BECOMING WEST TO SOUTHWEST 8-12 MPH BETWEEN NOON
                    AND 1400. GUSTS AROUND 25 MPH IN THE AFTERNOON.
RIDGE TOP WINDS.....WEST AROUND 10 MPH...INCREASING TO 15-20 MPH
                    BETWEEN NOON AND 1400.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......3500 FT AGL INCREASING TO 9000 FT AGL IN
                    THE AFTERNOON.
TRANSPORT WINDS.....WEST AROUND 10 MPH...INCREASING TO 20 MPH BY 1400.
SMOKE DISPERSAL.....FAIR INCREASING TO EXCELLENT IN THE AFTERNOON.

.FORECAST DAYS 3 THROUGH 5...
.THURSDAY NIGHT...MOSTLY CLEAR. LOWS IN THE UPPER 40S. WEST WINDS
AROUND 13 MPH.

.FRIDAY...PARTLY CLOUDY WITH ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 70S. WEST TO SOUTHWEST
WINDS 10 TO 20 MPH. GUSTS TO 30 MPH.

.SATURDAY...MOSTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS IN THE LOWER 40S. HIGHS AROUND 60. SOUTHWEST WINDS AROUND
12 MPH.

.SUNDAY...PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE UPPER 50S.
WINDS GENERALLY LESS THAN 10 MPH.

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

$$

FORECASTER...MURRELL
REQUESTED BY...BOB EVANS
REASON FOR REQUEST...WILDFIRE
.TAG 20100825.CASTL.01/RIW