FNUS75 KRIW 162135
FWSRIW

SPOT FORECAST FOR WEST SLOPE RX...BLM
NATIONAL WEATHER SERVICE RIVERTON WY
335 PM MDT MON APR 16 2012

FORECAST IS BASED ON IGNITION TIME OF 1100 MDT ON APRIL 17.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...MOIST WESTERLY FLOW CONTINUES ACROSS THE STATE THROUGH
THURSDAY WHEN THE THIRD AND FINAL WAVE PASSES BY AND THEN ALLOWS A RIDGE
TO BUILD INTO EARLY NEXT WEEK. SEVERAL WEAK WEATHER DISTURBANCES
WILL PASS BY THROUGH MID WEEK...RESULTING IN A FEW WEAK COLD FRONTAL
PASSAGES AND MORE CHANCES FOR PRECIPITATION...HIGH RHS AND VARIABLE
WIND SPEEDS AND DIRECTIONS.

THE FIRST FRONT WILL APPROACH FROM THE NORTH ON TUESDAY AFTERNOON
...INCREASING THE CHANCE FOR PRECIP AFTER 1200 AND LASTING THROUGH
2100...A PERIOD OF UPSLOPE FLOW WILL ENHANCE PRECIP CHANCES THROUGH
EARLY EVENING. EXPECT WINDS TO SHIFT TO THE NORTH AND BECOME GUSTY
AT TIMES WITH SUSTAINED WINDS 8 TO 16 MPH WITH FREQUENT GUSTS IN
EXCESS OF 30 MPH INTO THE EARLY EVENING. THE FRONT WASHES OUT OVERNIGHT
AND LEAVES BEHIND PLENTY OF RESIDUAL MOISTURE. ANOTHER PUSH COMES THROUGH
AROUND 1500 ON WEDNESDAY WITH SIMILAR RESULTS.

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

FORECASTER...ALLEN

.TUESDAY...
SKY/WEATHER.........MOSTLY CLOUDY (60-70 PERCENT). ISOLATED RAIN
                    SHOWERS THROUGH THE DAY. ISOLATED THUNDERSTORMS
                    BETWEEN 1400 AND 1800.
MAX TEMPERATURE.....AROUND 60.
MIN HUMIDITY........30-35 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH BECOMING NORTHWEST
                    AROUND 8 TO 16 MPH AROUND 1500. GUSTS UP
                    TO 15 MPH INCREASING TO 30 MPH AFTER 1500.
                    GUSTY AND ERRATIC WINDS EXPECTED NEAR
                    THUNDERSTORMS IN THE AFTERNOON.
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH SHIFTING TO THE NORTHWEST
                    EARLY IN THE AFTERNOON.
LAL.................1 UNTIL 1400...THEN 2.
CHC OF WETTING RAIN.20 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2500-3500 FT AGL INCREASING TO 5700-6700 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH SHIFTING TO THE WEST
                    AROUND 13 MPH LATE IN THE MORNING...THEN
                    SHIFTING TO THE WEST AROUND 30 MPH EARLY
                    IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR TO GOOD (15900-64600 KNOT-FT).

.TUESDAY NIGHT...
SKY/WEATHER.........PARTLY CLOUDY (50-60 PERCENT). ISOLATED SHOWERS
                    IN THE EVENING.
MIN TEMPERATURE.....36-39.
MAX HUMIDITY........80-95 PERCENT.
20 FOOT WINDS.......NORTHWEST WINDS AROUND 8 MPH WITH GUSTS TO
                    AROUND 15 MPH EARLY IN THE EVENING BECOMING
                    DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....NORTH 10 TO 15 MPH SHIFTING TO THE SOUTHWEST
                    AFTER MIDNIGHT.
LAL.................1.
CHC OF WETTING RAIN.5 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......5200-6200 FT AGL DECREASING TO 2400-3400 FT AGL
                    AFTER MIDNIGHT.
TRANSPORT WINDS.....NORTH 12 TO 16 MPH SHIFTING TO THE SOUTHWEST 10
                    TO 12 MPH AFTER MIDNIGHT.
SMOKE DISPERSAL.....POOR TO GOOD (16900-65700 KNOT-FT).

.WEDNESDAY...
SKY/WEATHER.........MOSTLY CLOUDY (60-70 PERCENT). ISOLATED RAIN
                    SHOWERS.
MAX TEMPERATURE.....AROUND 58.
MIN HUMIDITY........34-37 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH BECOMING NORTH 10-15 MPH.
RIDGE TOP WINDS.....SOUTHEAST AROUND 5 MPH SHIFTING TO THE
                    SOUTHWEST 10 TO 15 MPH IN THE LATE MORNING AND
                    AFTERNOON BECOMING NORTH AROUND 15 MPH AFTER 1700.
LAL.................1.
CHC OF WETTING RAIN.5 PERCENT.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3800-4800 FT AGL.
TRANSPORT WINDS.....SOUTHEAST AROUND 9 MPH SHIFTING TO THE
                    SOUTHWEST 13 TO 15 MPH IN THE LATE MORNING AND
                    AFTERNOON BECOMING NORTH IN THE EVENING.
SMOKE DISPERSAL.....POOR TO FAIR (33500-51000 KNOT-FT).

.FORECAST DAYS 3 THROUGH 5...
.WEDNESDAY NIGHT...MOSTLY CLOUDY WITH ISOLATED SHOWERS. LOWS IN
THE UPPER 30S. WINDS GENERALLY LESS THAN 10 MPH.
.THURSDAY...PARTLY CLOUDY. SCATTERED SHOWERS. LOWS IN THE MID
30S. HIGHS IN THE MID 50S. WINDS GENERALLY LESS THAN 10 MPH.
.FRIDAY...PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON AND EVENING. LOWS IN THE LOWER 40S. HIGHS IN THE MID
60S. WINDS GENERALLY LESS THAN 10 MPH.
.SATURDAY...PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON AND EVENING. LOWS IN THE LOWER 40S. HIGHS AROUND 70.
WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...ALLEN
REQUESTED BY...MICHAEL WENGERT
REASON FOR REQUEST...PRESCRIBED
.TAG 20120417.WESTS.01/RIW