FNUS75 KRIW 231018
FWSRIW

SPOT FORECAST FOR UPPER BILLIES RX...BLM RSD
NATIONAL WEATHER SERVICE RIVERTON WY
418 AM MDT WED MAY 23 2012

FORECAST IS BASED ON IGNITION TIME OF 0900 MDT ON MAY 23.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
WINDS WILL INCREASE AGAIN THIS MORNING...THOUGH SHOULD BE SLIGHTLY
WEAKER THAN YESTERDAY. COOLER TEMPERATURES WILL ALSO BE SEEN
TODAY. CURRENT SATELLITE DATA SHOWS LESS CLOUD COVER THAN
ANTICIPATED TO THE WEST...THUS TEMPERATURES COULD SNEAK A BIT
HIGHER THAN FORECAST...AND IN TURN RHS COULD FALL A BIT LOWER.
HOWEVER MORE CLOUDS AND MOISTURE ARE EXPECTED THIS AFTERNOON WITH
ISOLATED SHOWERS OR THUNDERSTORMS POSSIBLE. WEST TO WEST NORTHWEST
FLOW WILL DOMINATE FOR THE NEXT TWO DAYS...WITH COOLER AND MORE
MOIST CONDITIONS PERSISTING INTO THE WEEKEND.

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

FORECASTER...WOLCOTT

.TODAY...
SKY/WEATHER.........PARTLY CLOUDY...BECOMING MOSTLY CLOUDY AFTER
                    NOON. ISOLATED RAIN OR SNOW SHOWERS IN THE
                    MORNING. ISOLATED RAIN SHOWERS AND
                    THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....41-44.
MIN HUMIDITY........35-38 PERCENT.
20 FOOT WINDS.......WEST WINDS 15 TO 20 MPH WITH GUSTS TO AROUND
                    35 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR
                    THUNDERSTORMS IN THE AFTERNOON.
RIDGE TOP WINDS.....WEST 20 TO 25 MPH.
LAL.................1 UNTIL 1200...THEN 2.
CHC OF WETTING RAIN.10 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2500-3500 FT AGL INCREASING TO 6000-7000 FT
                    AGL IN THE AFTERNOON.
TRANSPORT WINDS.....WEST 25 TO 30 MPH.
SMOKE DISPERSAL.....GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.

.TONIGHT...
SKY/WEATHER.........MOSTLY CLOUDY SCATTERED SNOW SHOWERS IN THE
                    EVENING...THEN ISOLATED SNOW SHOWERS AFTER MIDNIGHT.
MIN TEMPERATURE.....25-28.
MAX HUMIDITY........80-83 PERCENT.
20 FOOT WINDS.......WEST WINDS 10 TO 15 MPH WITH GUSTS TO AROUND 25
                    MPH.
RIDGE TOP WINDS.....WEST 20 TO 25 MPH.
LAL.................1.
CHC OF WETTING RAIN.10 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......5000-6000 FT AGL DECREASING TO 2000-3000 FT AGL
                    AFTER MIDNIGHT.
TRANSPORT WINDS.....WEST 25 TO 30 MPH.
SMOKE DISPERSAL.....VERY GOOD DECREASING TO FAIR AFTER MIDNIGHT.

.THURSDAY...
SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED SNOW SHOWERS IN THE
                    MORNING...THEN CHANCE OF RAIN SHOWERS AND
                    ISOLATED THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....40-43.
MIN HUMIDITY........37-40 PERCENT.
20 FOOT WINDS.......WEST WINDS 10 TO 15 MPH WITH GUSTS TO 20 MPH.
                    GUSTY AND ERRATIC WINDS EXPECTED NEAR
                    THUNDERSTORMS IN THE AFTERNOON.
RIDGE TOP WINDS.....WEST 12 TO 17 MPH.
LAL.................1 UNTIL 1200...THEN 2.
CHC OF WETTING RAIN.10 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3500-4500 FT AGL INCREASING TO 6000-7000 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....WEST 15 TO 20 MPH.
SMOKE DISPERSAL.....FAIR INCREASING TO VERY GOOD IN THE AFTERNOON.

.FORECAST DAYS 3 THROUGH 5...

.THURSDAY NIGHT...MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS AND
ISOLATED THUNDERSTORMS IN THE EVENING...THEN CHANCE OF SNOW
SHOWERS AFTER MIDNIGHT. LOWS IN THE UPPER 20S. WINDS GENERALLY
LESS THAN 10 MPH.

.FRIDAY...SHOWERS...SNOW SHOWERS LIKELY AND ISOLATED
THUNDERSTORMS. LOWS IN THE LOWER 30S. HIGHS IN THE UPPER 40S.
WINDS GENERALLY LESS THAN 10 MPH.

.SATURDAY...SHOWERS LIKELY WITH POSSIBLE SNOW SHOWERS AND
THUNDERSTORMS. LOWS AROUND 30. HIGHS IN THE LOWER 50S. SOUTHWEST
WINDS AROUND 10 MPH.

.SUNDAY...MOSTLY CLOUDY WITH CHANCE OF SHOWERS...SNOW SHOWERS AND
ISOLATED THUNDERSTORMS. LOWS AROUND 30. HIGHS IN THE MID 40S.
WEST WINDS AROUND 10 MPH.

$$

FORECASTER...WOLCOTT
REQUESTED BY...GREG RESER
REASON FOR REQUEST...PRESCRIBED
.TAG 20120522.UPPER.01/RIW