FNUS75 KRIW 071600
FWSRIW

SPOT FORECAST FOR MOSS RANCH...IA CDC
NATIONAL WEATHER SERVICE RIVERTON WY
1000 AM MDT TUE APR 7 2009

FORECAST IS BASED ON IGNITION TIME OF 1100 MDT ON APRIL 07.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...HIGH PRESSURE DOMINATES THE WEATHER PATTERN
TODAY...WITH WARMER TEMPERATURES...LOWER HUMIDITIES...AND
RELATIVELY LIGHT WINDS. SIMILAR CONDITIONS FOR OVERNIGHT WITH POOR
HUMIDITY RECOVERY. WEATHER SYSTEM MOVES INTO CENTRAL ROCKIES
WEDNESDAY. WIND SHOULD PICK UP SOMEWHAT ON WEDNESDAY FROM THE
SOUTH. TEMPS WILL COOL SLIGHTLY WITH WARMER TEMPERATURES EARLIER
IN THE AFTERNOON. CLOUD COVER WILL INCREASE THROUGH THE DAY
WEDNESDAY...WITH SLIGHT CHANCE OF RAIN SHOWERS AROUND SUNSET.
SLIGHT INSTABILITY POSSIBLE WEDNESDAY EVENING. WEATHER SYSTEM
DOES NOT MOVE OUT UNTIL THURSDAY EVENING...COOLING TEMPS AND
RAISING RH VALUES.

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

FORECASTER...MCDONALD

.TODAY...
SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT).
MAX TEMPERATURE.....AROUND 60.
MIN HUMIDITY........15-18 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH.
RIDGE TOP WINDS.....SOUTHWEST 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.......1900-2900 FT AGL.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH.
SMOKE DISPERSAL.....POOR (15000-30000 KNOT-FT).

.TONIGHT...
SKY/WEATHER.........MOSTLY CLEAR (20-30 PERCENT).
MIN TEMPERATURE.....34-37.
MAX HUMIDITY........50-60 PERCENT.
20 FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....SOUTH 5 TO 10 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......500-1500 FT AGL.
TRANSPORT WINDS.....SOUTH 5 TO 8 MPH.
SMOKE DISPERSAL.....POOR (2500-10000 KNOT-FT).

.WEDNESDAY...
SKY/WEATHER.........PARTLY CLOUDY (50-60 PERCENT). SLIGHT CHANCE OF
                    RAIN SHOWERS AFTER 1600.
MAX TEMPERATURE.....54-57.
MIN HUMIDITY........28-31 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 4 TO 8 MPH...SOUTH AROUND
                    10 MPH AFTER 1500.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH.
LAL.................1.
CHC OF WETTING RAIN.3 PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......750-1250 FT AGL...AROUND 3000 FT AGL AFTER
                    1200.
TRANSPORT WINDS.....SOUTH AROUND 5 MPH...THEN BECOMING SOUTH
                    AROUND 12 MPH AFTER 1200.
SMOKE DISPERSAL.....POOR (3500-36000 KNOT-FT).

.FORECAST DAYS 3 THROUGH 5...
.WEDNESDAY NIGHT...MOSTLY CLOUDY. CHANCE OF SHOWERS IN THE
EVENING...THEN CHANCE OF SHOWERS AND SNOW SHOWERS AFTER MIDNIGHT.
LOWS IN THE MID 30S. WINDS GENERALLY LESS THAN 10 MPH.
.THURSDAY...MOSTLY CLOUDY WITH CHANCE OF SHOWERS. LOWS IN THE
LOWER 30S. HIGHS IN THE LOWER 50S. WINDS GENERALLY LESS THAN
10 MPH.
.FRIDAY...PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS...SNOW SHOWERS
AND ISOLATED THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE
MID 50S. WINDS GENERALLY LESS THAN 10 MPH.
.SATURDAY...COLDER. MOSTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS...
SNOW SHOWERS AND ISOLATED THUNDERSTORMS. LOWS IN THE LOWER 30S.
HIGHS IN THE UPPER 30S. WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...MCDONALD
REQUESTED BY...CATHY HUTTON
REASON FOR REQUEST...PRESCRIBED
.TAG 20090407.MOSSR.01/RIW