FNUS75 KRIW 260111
FWSRIW

SPOT FORECAST FOR NORTON...USDA - FS
NATIONAL WEATHER SERVICE RIVERTON WY
711 PM MDT THU AUG 25 2011

FORECAST IS BASED ON REQUEST TIME OF 1816 MDT ON AUGUST 25.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...AN UPPER LEVEL DISTURBANCE HAS PUSHED EAST OF THE
AREA THIS AFTERNOON ALONG WITH THE MAIN LINE OF SHOWERS AND
THUNDERSTORMS. ONE LAST CLUSTER OF SHOWERS AND ISOLATED THUNDERSTORMS
WILL PUSH ACROSS THE AREA BETWEEN 2000L AND 2030L.  EXPECT GUSTY
OUTFLOW WIND GUSTS OF 30 TO 40 MPH PRIMARILY FROM THE WEST OR NORTHWEST
FROM THESE STORMS.   A DRIER AND MORE STABLE AIRMASS WILL PUSH IN
BEHIND THESE STORMS WITH SKIES CLEARING LATE THIS EVENING.

ON FRIDAY...MONSOONAL MOISTURE WILL CONTINUE TO ROTATE ACROSS
THE AREA WITH ISOLATED SHOWERS AND THUNDERSTORMS BLOSSOMING IN THE
AFTERNOON AND EARLY EVENING. THIS ACTIVITY IS EXPECTED TO BE
WEAKER...LESS ORGANIZED THAN TODAY WITH THE LACK OF ANY
SIGNIFICANT UPPER LEVEL DISTURBANCES.

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

FORECASTER...MEUNIER

.TONIGHT...
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT) WITH ISOLATED SHOWERS
                    AND THUNDERSTORMS THROUGH 2030L...THEN CLEARING.
MIN TEMPERATURE.....49-52.
MAX HUMIDITY........34-37 PERCENT.
20 FOOT WINDS.......WEST TO NORTHWEST 10 TO 15 MPH WITH GUSTS TO 30 TO 40 MPH
                    THROUGH 2030L. DECREASING TO WEST 4 TO 8 MPH AFTER 2100L.
RIDGE TOP WINDS.....WEST 15 TO 20 MPH SHIFTING TO THE SOUTHWEST
                    AROUND 10 MPH AFTER MIDNIGHT.
LAL.................2 UNTIL 2030...THEN 1.
CHC OF WETTING RAIN.3 PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.

.FRIDAY...
SKY/WEATHER.........MOSTLY SUNNY THROUGH 1000L THEN BECOMING
                    PARTLY CLOUDY (35-45 PERCENT). SCATTERED SHOWERS AND
                    THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....69-72.
MIN HUMIDITY........21-24 PERCENT.
20 FOOT WINDS.......SOUTHWEST 5-9 MPH INCREASING TO 8 TO 13 MPH WITH
                    GUSTS TO 20 MPH BETWEEN NOON AND 1400L.
                    GUSTY AND ERRATIC WINDS EXPECTED NEAR
                    THUNDERSTORMS IN THE AFTERNOON WITH THUNDERSTORM
                    OUTFLOW WINDS BECOMING INCREASINGLY DOMINATE THROUGH
                    THE AFTERNOON.
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH.
LAL.................1 UNTIL 1100...THEN 4.
CHC OF WETTING RAIN.6 PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.

.FORECAST DAYS 3 THROUGH 5...
.FRIDAY NIGHT...PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS
IN THE EVENING. LOWS AROUND 50. WINDS GENERALLY LESS THAN 10 MPH.
.SATURDAY...PARTLY CLOUDY WITH ISOLATED SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS AROUND 70. WINDS
GENERALLY LESS THAN 10 MPH.
.SUNDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 60S.
WINDS GENERALLY LESS THAN 10 MPH.
.MONDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 60S.
WINDS GENERALLY LESS THAN 10 MPH.
.TUESDAY...MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE MID 60S. WINDS
GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...MEUNIER
REQUESTED BY...ANGIE FOSTER
REASON FOR REQUEST...WILDFIRE
.TAG 20110825.NORTO.02/RIW