FNUS75 KRIW 152054
FWSRIW

SPOT FORECAST FOR WEST SLOPE RX...IA CDC
NATIONAL WEATHER SERVICE RIVERTON WY
254 PM MDT FRI APR 15 2011

FORECAST IS BASED ON IGNITION TIME OF 1100 MDT ON APRIL 16.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
CLOUD COVER WILL INCREASE TO CLOUDY THROUGH THE LATE AFTERNOON AND
EVENING HOURS TONIGHT AS AN APPROACHING WAVE OF LOW PRESSURE MOVES
OVER THE BURN SITE. SHOWERS ASSOCIATED WITH THIS SYSTEM WILL BE
MORE PREVALENT WEST OF THE BURN SITE OVER THE BIGHORN
MOUNTAINS...BUT SOME ACTIVITY MAY MOVE OVER THE BURN SITE
ESPECIALLY AFTER 1900 THIS EVENING. ANY SHOWERS WILL COMBINE WITH
COOL TEMPERATURES OVERNIGHT RESULTING IN POSSIBLE SNOWFALL IN THE
LATE EVENING HOURS. SHOWER ACTIVITY ASSOCIATED WITH THIS SYSTEM
WILL CONTINUE THROUGH SATURDAY AFTERNOON...INCREASING IN COVERAGE
AFTER 1200.


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

FORECASTER...BRANHAM

.TODAY...
SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT).
MAX TEMPERATURE.....47-50.
MIN HUMIDITY........32-36 PERCENT.
20 FOOT WINDS.......NORTHWEST 5-9 MPH.
RIDGE TOP WINDS.....SOUTH SOUTHWEST 12-17 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......AROUND 6000 FT AGL.
TRANSPORT WINDS.....WEST SOUTHWEST 9 TO 16 MPH.
SMOKE DISPERSAL.....POOR TO GOOD (29700-75800 KNOT-FT).

.TONIGHT...
SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT). ISOLATED RAIN
                    SHOWERS AND SNOW SHOWERS 2400.
MIN TEMPERATURE.....31-36.
MAX HUMIDITY........70-76 PERCENT.
20 FOOT WINDS.......WEST WINDS 5-9 MPH BECOMING DOWNSLOPE/DOWNVALLEY
                    4-7 MPH AFTER 2200. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....SOUTHEAST AROUND 15 MPH SHIFTING TO THE EAST
                    AFTER 2200...THEN SHIFTING TO THE SOUTHEAST
                    AFTER 0100.
LAL.................1.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......DECREASING TO 1800 FT AGL BY 0200.
TRANSPORT WINDS.....NORTHWEST 12 TO 15 MPH.
SMOKE DISPERSAL.....POOR TO FAIR (17400-49200 KNOT-FT).

.SATURDAY...
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). SLIGHT CHANCE OF
                    RAIN IN THE MORNING...THEN SCATTERED RAIN
                    SHOWERS AFTER 1200.
MAX TEMPERATURE.....52-56.
MIN HUMIDITY........33-38 PERCENT.
20 FOOT WINDS.......SOUTH SOUTHWEST 7 TO 10 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....SOUTH 10 TO 15 MPH SHIFTING TO THE SOUTHWEST
                    AFTER 1200.
LAL.................1.
CHC OF WETTING RAIN.8 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......INCREASING TO 4300-5300 FT AGL BY 1300.
TRANSPORT WINDS.....NORTHEAST AROUND 12 MPH SHIFTING TO THE
                    NORTHWEST 10 TO 16 MPH AFTER 1000.
SMOKE DISPERSAL.....POOR TO GOOD (30100-71300 KNOT-FT).

.FORECAST DAYS 3 THROUGH 5...
.SATURDAY NIGHT...CLOUDY. SCATTERED SHOWERS IN THE EVENING...THEN
SCATTERED SHOWERS AND SNOW SHOWERS AFTER MIDNIGHT. LOWS IN THE
MID 30S. WINDS GENERALLY LESS THAN 10 MPH.
.SUNDAY...CLOUDY WITH SCATTERED SHOWERS AND SNOW SHOWERS. LOWS IN
THE LOWER 30S. HIGHS IN THE LOWER 50S. WINDS GENERALLY LESS THAN
10 MPH.
.MONDAY...CLOUDY WITH SCATTERED SHOWERS...SNOW SHOWERS AND
ISOLATED THUNDERSTORMS. LOWS IN THE LOWER 30S. HIGHS IN THE UPPER
40S. WINDS GENERALLY LESS THAN 10 MPH.
.TUESDAY...MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND SNOW SHOWERS.
LOWS IN THE UPPER 20S. HIGHS IN THE MID 40S. WINDS GENERALLY LESS
THAN 10 MPH.

$$

FORECASTER...BRANHAM
REQUESTED BY...CODY DISPATCH
REASON FOR REQUEST...PRESCRIBED
.TAG 20110416.WESTS.01/RIW