FNUS75 KRIW 270955
FWSRIW

SPOT FORECAST FOR UPPER PALMER CREEK...IA TDC
NATIONAL WEATHER SERVICE RIVERTON WY
355 AM MDT TUE SEP 27 2011

FORECAST IS BASED ON IGNITION TIME OF 1755 MDT ON SEPTEMBER 26.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

A RIDGE OF HIGH PRESSURE WILL ONCE AGAIN BUILD INTO THE AREA
TODAY. THIS WILL RESULT IN DRY AND UNSEASONABLY WARM TEMPERATURES
AS WELL AS...WINDS BEING RELATIVELY LIGHT AND MAINLY TERRAIN
DRIVEN. A WEAK...DRY COLD FRONT IS EXPECTED TO MOVE ACROSS
WESTERN WYOMING WEDNESDAY...WITH SLIGHTLY STRONGER WESTERLY WINDS
THAN WHAT IS EXPECTED TODAY. MOST OF THE IMPACT FROM THIS COLD
FRONT WILL BE EAST OF THE DIVIDE.

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

FORECASTER...MURRELL

.TODAY...
SKY/WEATHER.........MOSTLY SUNNY (15 PERCENT).
MAX TEMPERATURE.....66-71.
MIN HUMIDITY........AROUND 20 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 4-8 MPH...BECOMING WEST
                    SOUTHWEST 5-10 MPH BETWEEN NOON AND 1400.
                    GUSTS TO 20 MPH IN THE AFTERNOON.
RIDGE TOP WINDS.....SOUTH SOUTHEAST 5-10 MPH...BECOMING WEST
                    SOUTHWEST AROUND 10 MPH BETWEEN NOON AND
                    1400. GUSTS TO 20 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2500 FT AGL INCREASING TO 5500 FT AGL BY
                    EARLY AFTERNOON.
TRANSPORT WINDS.....SOUTH 5-10 MPH...BECOMING WEST 10-15 MPH
                    BETWEEN NOON AND 1400.
SMOKE DISPERSAL.....POOR (16900 KNOT-FT) INCREASING TO FAIR
                    BY 1300 (50000 KNOT-FT)...THEN GOOD BY
                    1500.

.TONIGHT...
SKY/WEATHER.........CLEAR (0-10 PERCENT).
MIN TEMPERATURE.....35-40 VALLEY.  AROUND 50 RIDGE.
MAX HUMIDITY........70-75 PERCENT VALLEY. 40-45 PERCENT RIDGE.
20 FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 15
                    MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 10 MPH BECOMING SOUTHEAST
                    AROUND 5 MPH AFTER MIDNIGHT.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......4200 FT AGL DECREASING TO 800 FT AGL BY 2100.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH BECOMING SOUTHEAST
                    AROUND 5 MPH AFTER MIDNIGHT.
SMOKE DISPERSAL.....BECOMING POOR BY 2100.

.WEDNESDAY...
SKY/WEATHER.........SUNNY (0-10 PERCENT).
MAX TEMPERATURE.....69-72.
MIN HUMIDITY........20-25 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 4-8 MPH BECOMING WEST
                    10-15 MPH AROUND NOON. GUSTS TO 25 MPH IN
                    THE AFTERNOON.
RIDGE TOP WINDS.....SOUTHWEST 5-10 MPH...BECOMING WEST AROUND
                    15 MPH AROUND NOON. GUSTS AROUND 25 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2200 FT AGL INCREASING TO 5600 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTH 5-10 MPH BECOMING TO WEST AROUND
                    15 MPH BY AROUND NOON.
SMOKE DISPERSAL.....POOR INCREASING TO GOOD BY EARLY AFTERNOON.

.FORECAST DAYS 3 THROUGH 5...

.WEDNESDAY NIGHT...CLEAR. LOWS IN THE MID 30S. WINDS GENERALLY
LESS THAN 10 MPH.

.THURSDAY...CLEAR. LOWS IN THE MID 30S. HIGHS AROUND 70.
WINDS GENERALLY LESS THAN 10 MPH.

.FRIDAY...MOSTLY CLEAR. LOWS AROUND 40. HIGHS IN THE LOWER 70S.
WINDS GENERALLY LESS THAN 10 MPH.

.SATURDAY...PARTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS AROUND
70. WINDS GENERALLY LESS THAN 10 MPH.

$$


$$

FORECASTER...MURRELL
REQUESTED BY...UPPER PALMER RX
REASON FOR REQUEST...PRESCRIBED
.TAG 20110926.UPPER.01/RIW