FNUS75 KRIW 040422
FWSRIW

SPOT FORECAST FOR WEST SLOPE...USFS SHF
NATIONAL WEATHER SERVICE RIVERTON WY
1022 PM MDT SUN APR 3 2011

FORECAST IS BASED ON IGNITION TIME OF 1100 MDT ON APRIL 04.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...AN UPPER RIDGE OF HIGH PRESSURE WILL BUILD OVER THE
AREA TODAY WITH HIGH CLOUDS INCREASING BY 1100. TEMPERATURES WILL
TREND WARMER TODAY AND RELATIVE HUMIDITY LOWER. A COLD FRONT WILL
PUSH SOUTH ACROSS THE AREA AROUND MIDDAY TUESDAY WITH WINDY
CONDITIONS PRECEDING THE FRONT TUESDAY MORNING...FOLLOWED BY AN
ABRUPT WIND SHIFT FROM THE NORTH AND SCATTERED RAIN SHOWERS IN
THE AFTERNOON.

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

FORECASTER...MEUNIER

.TODAY...
SKY/WEATHER.........PARTLY CLOUDY IN THE MORNING (30-40 PERCENT)...BECOMING
                    MOSTLY CLOUDY (70-80 PERCENT) BY NOON.
MAX TEMPERATURE.....AROUND 47-50.
MIN HUMIDITY........NEAR 30 PERCENT.
20 FOOT WINDS.......SOUTH 4 TO 8 MPH...GUSTS NEAR 15 MPH IN THE AFTERNOON.
RIDGE TOP WINDS.....SOUTH 10 TO 15 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......5200-6200 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH IN THE MORNING BECOMING
                    WEST 15 TO 20 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....FAIR IN THE MORNING...BECOMING GOOD IN THE AFTERNOON.

.MONDAY NIGHT...
SKY/WEATHER.........MOSTLY CLOUDY (60-70 PERCENT).
MIN TEMPERATURE.....32-35.
MAX HUMIDITY........58-61 PERCENT.
20 FOOT WINDS.......SOUTHEAST WINDS 8 TO 11 MPH AND GUSTY.
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......4200 FT AGL.
TRANSPORT WINDS.....WEST 22 TO 24 MPH.
SMOKE DISPERSAL.....GOOD (80400-86000 KNOT-FT).

.TUESDAY...
SKY/WEATHER.........CLOUDY (85-95 PERCENT)...SCATTERED RAIN SHOWERS IN THE
                    AFTERNOON.
MAX TEMPERATURE.....52-55.
MIN HUMIDITY........30-33 PERCENT.
20 FOOT WINDS.......SOUTH WINDS 10 TO 15 MPH. GUSTS UP TO 20 MPH
                    INCREASING TO 25 MPH IN THE AFTERNOON.
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH SHIFTING TO THE
                    NORTHWEST LATE IN THE AFTERNOON.
LAL.................1.
CHC OF WETTING RAIN.15 PERCENT.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......4400 FT AGL.
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH INCREASING TO WEST
                    35 TO 40 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....GOOD (74000 KNOT-FT) INCREASING TO VERY GOOD
                    (141000 KNOT-FT) IN THE AFTERNOON.

.FORECAST DAYS 3 THROUGH 5...
.TUESDAY NIGHT...CLOUDY. CHANCE OF RAIN AND SNOW IN THE EVENING...
THEN CHANCE OF SNOW AFTER MIDNIGHT. LOWS IN THE LOWER 30S. WINDS
GENERALLY LESS THAN 10 MPH.
.WEDNESDAY...MOSTLY CLOUDY WITH SLIGHT CHANCE OF RAIN AND SNOW.
LOWS IN THE LOWER 30S. HIGHS IN THE UPPER 40S. WINDS GENERALLY
LESS THAN 10 MPH.
.THURSDAY...MOSTLY CLOUDY WITH CHANCE OF RAIN AND SNOW. LOWS
AROUND 30. HIGHS IN THE MID 40S. WINDS GENERALLY LESS THAN
10 MPH.
.FRIDAY...MOSTLY CLOUDY WITH SLIGHT CHANCE OF SNOW. LOWS AROUND
30. HIGHS IN THE UPPER 30S. WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...MEUNIER
REQUESTED BY...MONONI
REASON FOR REQUEST...PRESCRIBED
.TAG 20110404.WESTS.01/RIW