FNUS75 KRIW 222049
FWSRIW

SPOT FORECAST FOR RAMSHORN PEAK...USFS SHF
NATIONAL WEATHER SERVICE RIVERTON WY
249 PM MDT SAT AUG 22 2009

FORECAST IS BASED ON REQUEST TIME OF 1408 MDT ON AUGUST 22.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
HIGH PRESSURE WILL GRADUALLY SHIFT EAST OF THE AREA THIS AFTERNOON.
MID AND HIGH LEVEL MONSOON MOISTURE WILL CONTINUE TO INCREASE OVER
THE SOUTHERN ABASAROKA MOUNTAINS WYOMING THIS EVENING. LOWER LEVEL
MONSOON MOISTURE WILL INCREASE TONIGHT AHEAD OF A WEAK PACIFIC
STORM SYSTEM. ISOLATED SHOWERS AND THUNDERSTORMS ARE EXPECTED TO
CONTINUE THROUGH THIS EVENING WITH AN INCREASE IN SHOWER ACTIVITY
BEGINNING SUNDAY MORNING. SCATTERED TO NUMEROUS SHOWERS AND
THUNDERSTORMS WILL CONTINUE THROUGH THE LATE AFTERNOON SUNDAY
BEFORE MORE STABLE AIR MOVES IN BEHIND THE ASSOCIATED COLD
FRONT SUNDAY EVENING.

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

FORECASTER...CHURCH

.TONIGHT...
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT). ISOLATED SHOWERS
                    AND THUNDERSTORMS IN THE EVENING.
MIN TEMPERATURE.....AROUND 50.
MAX HUMIDITY........57-63 PERCENT.
20 FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS IN THE
                    EVENING.
RIDGE TOP WINDS.....SOUTHWEST 5 TO 10 MPH SHIFTING TO THE WEST
                    AFTER MIDNIGHT.
LAL.................2.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......6100 FT AGL DECREASING TO 1100 FT AGL AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
SMOKE DISPERSAL.....GOOD (60900 KNOT-FT) DECREASING TO POOR
                    (1800 KNOT-FT) AFTER MIDNIGHT.
.SUNDAY...
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). ISOLATED
                    RAIN SHOWERS AND ISOLATED THUNDERSTORMS IN THE
                    MORNING...THEN CHANCE OF SHOWERS AND
                    THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....AROUND 70.
MIN HUMIDITY........34-38 PERCENT.
20 FOOT WINDS.......SOUTHWEST 5 TO 10 MPH WITH GUSTS TO 16 MPH.
                    GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS.
RIDGE TOP WINDS.....SOUTHWEST 12 TO 17 MPH.
LAL.................2 UNTIL 1200...THEN 4.
CHC OF WETTING RAIN.30 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3100 FT AGL INCREASING TO 6800 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 12 TO 17 MPH IN THE LATE MORNING AND
                    AFTERNOON.
SMOKE DISPERSAL.....POOR (2100 KNOT-FT) INCREASING TO GOOD (65800
                    KNOT-FT) IN THE AFTERNOON.

.FORECAST DAYS 3 THROUGH 5...
.SUNDAY NIGHT...MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 40S. WINDS GENERALLY LESS THAN
10 MPH.
.MONDAY...MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS AROUND 40. HIGHS IN THE MID 60S. WINDS GENERALLY LESS THAN
10 MPH.
.TUESDAY...PARTLY CLOUDY WITH CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE MID 60S. WINDS
GENERALLY LESS THAN 10 MPH.
.WEDNESDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE UPPER 60S.
WINDS GENERALLY LESS THAN 10 MPH.
.THURSDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE UPPER 60S.
WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...CHURCH
REQUESTED BY...TRACY FIFAREK
REASON FOR REQUEST...WILDFIRE
.TAG 20090822.RAMSH.01/RIW