FNUS75 KRIW 211614
FWSRIW

SPOT FORECAST FOR MOSS RANCH...BLM
NATIONAL WEATHER SERVICE RIVERTON WY
1014 AM MDT TUE APR 21 2009

FORECAST IS BASED ON IGNITION TIME OF 1200 MDT ON APRIL 21.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
HIGH PRESSURE REMAINS OVER THE REGION WITH A MOSTLY CLEAR SKY.
BY LATE AFTERNOON...THE GRADIENT WILL PROVIDE FOR BREEZY NORTHWEST
WINDS THAT WILL CONTINUE UNTIL SUNSET. OTHERWISE...IT WILL BE
MOSTLY CLEAR WITH LIGHT WINDS THROUGH WEDNESDAY MORNING. WEDNESDAY
WILL REMAIN DRY.


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

FORECASTER...LYNOTT

.REST OF TODAY...
SKY/WEATHER.........MOSTLY SUNNY (5-15 PERCENT).
MAX TEMPERATURE.....AROUND 70.
MIN HUMIDITY........16-19 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH.
RIDGE TOP WINDS.....SOUTH AROUND 15 MPH SHIFTING TO THE NORTHWEST
                    LATE IN THE AFTERNOON.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......5700-6700 FT AGL.
TRANSPORT WINDS.....NORTH 10 TO 14 MPH.
SMOKE DISPERSAL.....FAIR (58900 KNOT-FT).

.TONIGHT...
SKY/WEATHER.........MOSTLY CLEAR (25-35 PERCENT).
MIN TEMPERATURE.....45-48.
MAX HUMIDITY........61-64 PERCENT.
20 FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 15 MPH SHIFTING TO THE SOUTH
                    AFTER MIDNIGHT.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......4000-5200 FT AGL DECREASING TO 200 FT AGL AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....NORTH 8 TO 13 MPH.
SMOKE DISPERSAL.....POOR TO FAIR (1700-43000 KNOT-FT).

.WEDNESDAY...
SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT).
MAX TEMPERATURE.....70-73.
MIN HUMIDITY........15-18 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH.
RIDGE TOP WINDS.....SOUTH AROUND 15 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......200-1200 FT AGL INCREASING TO 8000-9000 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....NORTH 12 TO 16 MPH.
SMOKE DISPERSAL.....POOR (7500 KNOT-FT) INCREASING TO VERY GOOD
                    (118400 KNOT-FT) IN THE AFTERNOON.

.FORECAST DAYS 3 THROUGH 5...
.WEDNESDAY NIGHT...PARTLY CLOUDY. LOWS IN THE MID 40S. WINDS
GENERALLY LESS THAN 10 MPH.
.THURSDAY...MOSTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER 60S.
WINDS GENERALLY LESS THAN 10 MPH.
.FRIDAY...MUCH COLDER. SHOWERS AND SNOW LIKELY. LOWS IN THE MID
30S. HIGHS IN THE LOWER 40S. NORTH WINDS AROUND 12 MPH.
.SATURDAY...MOSTLY CLOUDY WITH CHANCE OF RAIN AND SNOW. LOWS IN
THE MID 30S. HIGHS IN THE LOWER 40S. WINDS GENERALLY LESS THAN
10 MPH.

$$

FORECASTER...LYNOTT
REQUESTED BY...CATHY HUTTON
REASON FOR REQUEST...PRESCRIBED
.TAG 20090421.MOSSR.01/RIW