FNUS75 KRIW 101509
FWSRIW

SPOT FORECAST FOR MYER S SPRING BURN...BLM WOD
NATIONAL WEATHER SERVICE RIVERTON WY
909 AM MDT FRI APR 10 2009

FORECAST IS BASED ON IGNITION TIME OF 1000 MDT ON APRIL 10.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...LOW CLOUDS WILL DISSIPATE BY 1000 THIS MORNING. THE AIRMASS
WILL BECOME MORE UNSTABLE THIS AFTERNOON WITH SCATTERED SHOWERS DEVELOPING
BY 1400. MORE SCATTERED SHOWERS AND ISOLATED AFTERNOON THUNDERSTORMS ARE
EXPECTED SATURDAY AS A LOW PRESSURE CENTER OFF THE COAST OF SOUTHERN CALIFORNIA
TRACKS NORTHEAST TO WYOMING.

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

FORECASTER...LIPSON

.TODAY...
SKY/WEATHER.........PARTLY CLOUDY (55-65 PERCENT) THEN BECOMING
                    MOSTLY CLOUDY (60-70 PERCENT). SLIGHT CHANCE OF
                    RAIN SHOWERS IN THE AFTERNOON BY 1400.
MAX TEMPERATURE.....AROUND 50.
MIN HUMIDITY........49-51 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY FROM THE SOUTHWEST 5-9 MPH.
RIDGE TOP WINDS.....LIGHT AND VARIABLE WINDS BECOMING SOUTHWEST AROUND
                    5 MPH IN THE AFTERNOON.
LAL.................2.
CHC OF WETTING RAIN.3 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......700-1700 FT AGL INCREASING TO 6000-7000 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....LIGHT AND VARIABLE...THEN BECOMING SOUTH AROUND
                    10 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....GOOD (3800-17800 KNOT-FT).

.TONIGHT...
SKY/WEATHER.........MOSTLY CLOUDY (60-70 PERCENT) THEN BECOMING
                    PARTLY CLOUDY (50-60 PERCENT). SLIGHT CHANCE OF
                    RAIN SHOWERS THROUGH THE NIGHT. SLIGHT CHANCE
                    OF SNOW SHOWERS AFTER MIDNIGHT.
MIN TEMPERATURE.....35-38.
MAX HUMIDITY........78-81 PERCENT.
20 FOOT WINDS.......DOWNSLOPE/DOWNVALLEY FROM THE NORTHEAST 4-7 MPH.
RIDGE TOP WINDS.....NORTHEAST 4 TO 7 MPH.
LAL.................1.
CHC OF WETTING RAIN.30 PERCENT.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......LESS THAN 1000 FEET.
TRANSPORT WINDS.....NORTHEAST 4 TO 7 MPH.
SMOKE DISPERSAL.....POOR.

.SATURDAY...
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). CHANCE OF RAIN
                    SHOWERS WITH AND ISOLATED AFTERNOON THUNDERSTORMS IN THE
                    AFTERNOON.
MAX TEMPERATURE.....51-54.
MIN HUMIDITY........43-48 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY FROM THE SOUTHWEST 5-9 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS IN THE
                    AFTERNOON.
RIDGE TOP WINDS.....NORTHWEST 10 MPH.
LAL.................2
CHC OF WETTING RAIN.15 PERCENT.
HAINES INDEX........3.
MIXING HEIGHT.......9000 FEET AGL.
TRANSPORT WINDS.....NORTHWEST 12 MPH.
SMOKE DISPERSAL.....VERY GOOD.

.FORECAST DAYS 3 THROUGH 5...
.SATURDAY NIGHT...CLOUDY WITH CHANCE OF SHOWERS. LOWS IN THE MID
30S. WINDS GENERALLY LESS THAN 10 MPH.
.SUNDAY...MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF SNOW SHOWERS. LOWS IN THE LOWER 30S. HIGHS IN THE UPPER 40S.
WINDS GENERALLY LESS THAN 10 MPH.
.MONDAY...MOSTLY CLOUDY WITH SCATTERED SHOWERS...SNOW SHOWERS AND
ISOLATED THUNDERSTORMS. LOWS IN THE MID 30S. HIGHS IN THE LOWER
50S. WINDS GENERALLY LESS THAN 10 MPH.
.TUESDAY...CLOUDY WITH SCATTERED SHOWERS...SNOW SHOWERS AND
ISOLATED THUNDERSTORMS. LOWS AROUND 30. HIGHS IN THE MID 40S.
WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...LIPSON
REQUESTED BY...SAGE DECKER
REASON FOR REQUEST...PRESCRIBED
.TAG 20090410.MYERS.01/RIW