FNUS75 KRIW 272206
FWSRIW

SPOT FORECAST FOR NORTON POINT...USDA - FS
NATIONAL WEATHER SERVICE RIVERTON WY
406 PM MDT SAT AUG 27 2011

FORECAST IS BASED ON REQUEST TIME OF 1540 MDT ON AUGUST 27.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
PRESSURE CONTINUES TO LOWER...AND IT WILL DO SO THROUGH NEXT
WEEK. IN RESPONSE...TEMPERATURES WILL BE ON A GRADUAL DOWNWARD
TREND AND RHS WILL BE FAIRLY STEADY WITH A SLIGHT UPWARD TREND
NOTED UNTIL FLOW TURNS SOUTHWEST EARLY NEXT WEEK AND MOVES IN SOME
DRIER AIR.

IN THE IMMEDIATE TERM...A DISTURBANCE WILL CONTINUE TO AFFECT THE
REGION WITH WIDELY SCATTERED THUNDERSTORMS CONTINUING INTO THE
EVENING. ISOLATED THUNDERSTORMS WILL REMAIN POSSIBLE EVEN AFTER
MIDNIGHT AS THE UPPER LEVEL DISTURBANCE SLOWLY EXITS TO THE EAST.
WINDS WILL CONTINUE TO BE THUNDERSTORM OUTFLOW DOMINATED INTO THE
EVENING. OTHERWISE...OVERALL FLOW WILL CONTINUE TO BE RATHER
LIGHT AND MAINLY TERRAIN DRIVEN.

WIDELY SCATTERED SHOWERS AND THUNDERSTORMS WILL CONTINUE
SUNDAY...WITH TEMPERATURES SLIGHTLY COOLER...RH A BIT HIGHER
THAN WHAT OCCURS TODAY.

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

FORECASTER...ALLEN

.TONIGHT...
SKY/WEATHER.........MOSTLY CLOUDY (60-70 PERCENT) THEN BECOMING
                    PARTLY CLOUDY (40-50 PERCENT). SCATTERED
                    SHOWERS AND THUNDERSTORMS IN THE EVENING...THEN
                    SLIGHT CHANCE OF THUNDERSTORMS AND ISOLATED
                    RAIN SHOWERS AFTER MIDNIGHT.
MIN TEMPERATURE.....50-55...EXCEPT 40-45 AT VALLEY FLOORS...INCLUDING
                    AROUND SHF 4.
MAX HUMIDITY........65-70 PERCENT.
20 FOOT WINDS.......NORTHWEST WINDS 8 TO 10 MPH AND GUSTY IN THE
                    EVENING BECOMING DOWNSLOPE/DOWNVALLEY 4-7 MPH.
                    GUSTY AND ERRATIC WINDS EXPECTED NEAR
                    THUNDERSTORMS.
RIDGE TOP WINDS.....NORTHWEST 10 TO 15 MPH.
LAL.................4 UNTIL 2400...THEN 2.
CHC OF WETTING RAIN.20 PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......5500-6500 FT AGL DECREASING TO 1500-2500 FT AGL
                    AFTER MIDNIGHT.
TRANSPORT WINDS.....NORTHWEST 13 TO 18 MPH.
SMOKE DISPERSAL.....GOOD (86700 KNOT-FT) DECREASING TO POOR (22800
                    KNOT-FT) AFTER MIDNIGHT.

.SUNDAY...
SKY/WEATHER.........PARTLY CLOUDY (55-65 PERCENT) THEN BECOMING
                    MOSTLY CLOUDY (60-70 PERCENT). SLIGHT CHANCE OF
                    THUNDERSTORMS IN THE MORNING. SCATTERED RAIN
                    SHOWERS THROUGH THE DAY. SCATTERED
                    THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....70-73...NEAR 80 AT SHF 4.
MIN HUMIDITY........27-30 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH BECOMING WEST 8 TO 11
                    MPH WITH HIGHER GUSTS LATE IN THE AFTERNOON.
                    GUSTY AND ERRATIC WINDS EXPECTED NEAR
                    THUNDERSTORMS.
RIDGE TOP WINDS.....SOUTHWEST AROUND 10 MPH SHIFTING TO THE WEST IN
                    THE AFTERNOON.
LAL.................2 UNTIL 1200...THEN 4.
CHC OF WETTING RAIN.29 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2900-3900 FT AGL INCREASING TO 6000-7000 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHWEST 10 TO 14 MPH SHIFTING TO THE WEST 14
                    TO 18 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR TO GOOD (28700-74100 KNOT-FT).

.FORECAST DAYS 3 THROUGH 5...
.SUNDAY NIGHT...PARTLY CLOUDY. CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING...THEN SLIGHT CHANCE OF
THUNDERSTORMS AND ISOLATED SHOWERS AFTER MIDNIGHT. LOWS IN THE
UPPER 40S. WINDS GENERALLY LESS THAN 10 MPH.
.MONDAY...PARTLY CLOUDY WITH CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S. WINDS GENERALLY LESS
THAN 10 MPH.
.TUESDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S. WINDS
GENERALLY LESS THAN 10 MPH.
.WEDNESDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 70S.
WINDS GENERALLY LESS THAN 10 MPH.
.THURSDAY...MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 30S. HIGHS IN THE UPPER 60S. WINDS
GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...ALLEN
REQUESTED BY...ANGIE FOSTER
REASON FOR REQUEST...WILDFIRE
.TAG 20110827.NORTO.01/RIW