FNUS75 KRIW 090843
FWSRIW

SPOT FORECAST FOR PACKER CREEK...USFS BTF
NATIONAL WEATHER SERVICE RIVERTON WY
243 AM MDT FRI AUG 9 2013

FORECAST IS BASED ON REQUEST TIME OF 2107 MDT ON AUGUST 08.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...AN UPPER LEVEL DISTURBANCE OVER THE SOUTHWEST CORNER
OF WYOMING EARLY THIS MORNING WILL CONTINUE TO SLOWLY DRIFT
NORTHEAST...EAST OF THE DIVIDE BY EARLY AFTERNOON. THIS SYSTEM
WILL KEEP MOSTLY CLOUDY SKIES AND OCCASIONAL LIGHT SHOWERS OVER
THE AREA THROUGH THE MORNING. SOME CLEARING BEHIND THIS SYSTEM IN
BY EARLY AFTERNOON WILL ALLOW FOR DIFFERENTIAL HEATING AND A FEW
THUNDERSTORMS TO DEVELOP THROUGH THE AFTERNOON AND EARLY EVENING.
TEMPERATURES WILL CONTINUE TO TREND COOLER AND RELATIVE HUMIDITY
HIGHER TODAY.

A DRIER AND WARMER AIRMASS WILL MOVE INTO THE AREA ON
SATURDAY...BUT ENOUGH MOISTURE AND INSTABILITY WILL LINGER FOR
ISOLATED AFTERNOON AND EVENING THUNDERSTORMS. THIS DRYING AND
WARMING TREND WILL CONTINUE INTO EARLY NEXT WEEK.


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

FORECASTER...MEUNIER

.TODAY...
SKY/WEATHER.........MOSTLY CLOUDY IN THE MORNING WITH SCATTERED SHOWERS...
                    AND POSSIBLY A THUNDERSTORM AFTER 1000.  PARTIAL CLEARING
                    IN THE EARLY AFTERNOON...WIDELY SCATTERED SHOWERS
                    AND THUNDERSTORMS EXPECTED TO FILL THIS AREA OF
                    CLEARING IN BY MID TO LATE AFTERNOON.

MAX TEMPERATURE.....AROUND 70.
MIN HUMIDITY........28-31 PERCENT.

20 FOOT WINDS.......UPSLOPE/UPVALLEY OR SOUTH 4-8 MPH IN THE MORNING.
                    BECOMING PRIMARILY WEST 5 TO 10 MPH AFTER 1400. GUSTY
                    AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN THE
                    LATE MORNING AND AFTERNOON.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH IN THE MORNING...BECOMING
                    WEST IN THE AFTERNOON.

LAL.................1 UNTIL 1000...THEN 3.
CHC OF WETTING RAIN.20 PERCENT.

HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.

MIXING HEIGHT.......NEAR 2000 FT AGL UNTIL 0900...INCREASING TO 8500-9500 FT
                    AGL IN THE AFTERNOON.

TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH IN THE MORNING...BECOMING
                    WEST IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR THROUGH 0900...BECOMING VERY GOOD IN THE AFTERNOON.

.TONIGHT...
SKY/WEATHER.........MOSTLY CLOUDY WITH ISOLATED SHOWERS AND THUNDERSTORMS
                    UNTIL AROUND SUNSET...THEN PARTLY CLOUDY.
MIN TEMPERATURE.....43-46.
MAX HUMIDITY........73-77 PERCENT.

20 FOOT WINDS.......NORTH TO NORTHWEST 5 TO 10 MPH IN THE EVENING...BECOMING
                    DOWNSLOPE/DOWNVALLEY 4-7 MPH AROUND MIDNIGHT. GUSTY
                    AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS EARLY IN THE
                    EVENING.
RIDGE TOP WINDS.....WEST 5 TO 10 MPH SHIFTING TO THE SOUTH IN THE
                    LATE EVENING.

LAL.................2 UNTIL 2000...THEN 1.
CHC OF WETTING RAIN.5 PERCENT.
HAINES INDEX........3 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.

MIXING HEIGHT.......5600-6600 FT AGL DECREASING TO 1400 FT AGL
                    AFTER MIDNIGHT.
TRANSPORT WINDS.....WEST AROUND 10 MPH EARLY EVENING...THEN SOUTHEAST
                    5 TO 10 MPH LATE EVENING AND OVERNIGHT.
SMOKE DISPERSAL.....GOOD THROUGH SUNSET...THEN POOR.

.SATURDAY...
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT). SLIGHT CHANCE OF
                    SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....73-76.
MIN HUMIDITY........20-23 PERCENT.

20 FOOT WINDS.......UPSLOPE/UPVALLEY OR SOUTH 5-9 MPH IN THE MORNING.
                    SOUTHWEST 5 TO 10 MPH WITH GUSTS TO 15 MPH
                    IN THE AFTERNOON.  GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS IN THE
                    AFTERNOON.
RIDGE TOP WINDS.....SOUTHWEST AROUND 10 MPH.

LAL.................1 UNTIL 1200...THEN 2.
CHC OF WETTING RAIN.10 PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.

MIXING HEIGHT.......NEAR 2000 FT AGL UNTIL 0900...INCREASING TO 8500-9500 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
SMOKE DISPERSAL.....POOR UNTIL 0900...GOOD IN THE AFTERNOON.

.FORECAST DAYS 3 THROUGH 5...
.SATURDAY NIGHT...PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. LOWS IN THE LOWER 40S. WINDS
GENERALLY LESS THAN 10 MPH.

.SUNDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE MID 70S.
WINDS GENERALLY LESS THAN 10 MPH.

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

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

$$

FORECASTER...MEUNIER
REQUESTED BY...DIANE RAU
REASON FOR REQUEST...WILDFIRE
.TAG 20130808.PACKE.01/RIW