FNUS75 KRIW 271009
FWSRIW

SPOT FORECAST FOR NORTON POINT...IA TDC
NATIONAL WEATHER SERVICE RIVERTON WY
409 AM MDT TUE SEP 27 2011

FORECAST IS BASED ON REQUEST TIME OF 1943 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.
WINDS ACROSS THE WILDFIRE AREA WILL BE UPSLOPE/UPVALLEY OR WEST TO
NORTHWEST TODAY. A DRY COLD FRONT IS EXPECTED TO MOVE ACROSS THE
AREA WEDNESDAY...WITH SLIGHTLY STRONGER WESTERLY WINDS THAN WHAT
IS EXPECTED TODAY...WITH SLIGHTLY COOLER TEMPERATURES AND A TAD
HIGHER RELATIVE HUMIDITY.

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

FORECASTER...MURRELL

.TODAY...
SKY/WEATHER.........SUNNY (5-15 PERCENT).
MAX TEMPERATURE.....64-68.
MIN HUMIDITY........14-18 PERCENT.
20 FOOT WINDS.......WEST NORTHWEST WINDS 5-10 MPH BECOMING
                    NORTHWEST AROUND 10 MPH AROUND NOON. GUSTS
                    TO 20 MPH.
RIDGE TOP WINDS.....WEST NORTHWEST 10 TO 15 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......INCREASING TO 4000 FT AGL.
TRANSPORT WINDS.....WEST 13 TO 18 MPH.
SMOKE DISPERSAL.....POOR INCREASING TO GOOD BY EARLY AFTERNOON.

.TONIGHT...
SKY/WEATHER.........CLEAR (5-15 PERCENT).
MIN TEMPERATURE.....40-45.
MAX HUMIDITY........40-45 PERCENT.
20 FOOT WINDS.......NORTHWEST WINDS AROUND 10 MPH. GUSTS TO
                    AROUND 15 MPH.
RIDGE TOP WINDS.....WEST NORTHWEST 10 TO 15 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3500-4500 FT AGL DECREASING TO 1200 FT AGL
                    BY 2200.
TRANSPORT WINDS.....WEST NORTHWEST 10 TO 15 MPH.
SMOKE DISPERSAL.....DECREASING TO POOR BY 2100.

.WEDNESDAY...
SKY/WEATHER.........SUNNY (0-10 PERCENT).
MAX TEMPERATURE.....60-65.
MIN HUMIDITY........15-20 PERCENT.
20 FOOT WINDS.......NORTHWEST WINDS AROUND 10 MPH...INCREASING
                    TO 15 MPH BY EARLY AFTERNOON. GUSTS TO
                    AROUND 30 MPH IN THE AFTERNOON.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH...BECOMING NORTHWEST
                    15 TO 20 MPH...IN THE EARLY AFTERNOON.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......1600 FT AGL INCREASING TO 4900 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....WEST 10 TO 20 MPH...BECOMING NORTHWEST 15
                    TO 20 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR INCREASING TO GOOD BY NOON.

.FORECAST DAYS 3 THROUGH 5...

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

.THURSDAY...CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE
LOWER 60S. WINDS GENERALLY LESS THAN 10 MPH.

.FRIDAY...MOSTLY CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE UPPER
60S. WINDS GENERALLY LESS THAN 10 MPH.

.SATURDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
ISOLATED THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE MID
60S. WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...MURRELL
REQUESTED BY...DAVID WILKINS
REASON FOR REQUEST...WILDFIRE
.TAG 20110926.NORTO.01/RIW