FNUS75 KRIW 250959
FWSRIW

SPOT FORECAST FOR NORTON POINT...USFS SHF
NATIONAL WEATHER SERVICE RIVERTON WY
359 AM MDT SUN SEP 25 2011

FORECAST IS BASED ON REQUEST TIME OF 1949 MDT ON SEPTEMBER 24.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
HIGH PRESSURE WILL KEEP BENIGN CONDITIONS OVER THE FIRE THROUGH
THIS EVENING WITH DRY...WARM AND SLIGHTLY GUSTY CONDITIONS. THE
AXIS OF THE RIDGE OF HIGH PRESSURE BEGINS TO MOVE EAST AHEAD OF AN
ARRIVING COLD FRONT LATE SUNDAY NIGHT AND INTO MONDAY MORNING.
THIS WILL RESULT IN A MORE SOUTHWESTERLY FLOW OVER THE FIRE WITH
INCREASED WIND AND INCREASED MOISTURE TO INTRODUCE A FEW SHOWERS
OVER THE FIRE BY MONDAY MORNING. THE FRONT IS THEN EXPECTED TO
MOVE THROUGH THE FIRE EARLY MONDAY AFTERNOON. THIS FRONT WILL
CONTINUE ISOLATED SHOWERS THROUGH MONDAY. COOLER TEMPERATURES WITH
INCREASED HUMIDITY ARE EXPECTED BY MONDAY AFTERNOON.


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

FORECASTER...BRANHAM

.TODAY...
SKY/WEATHER.........MOSTLY SUNNY (5-15 PERCENT).
MAX TEMPERATURE.....68-72 BELOW 9500 FT...65-69 ABOVE 9500 FT.
MIN HUMIDITY........11-16 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH BECOMING WEST AT
                    10 TO 15 MPH WITH GUSTS 20 TO 25 MPH BY 1400.
RIDGE TOP WINDS.....NORTHWEST AROUND 15 MPH SHIFTING TO THE WEST IN
                    BY 1300.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2800-3800 FT AGL INCREASING TO 6100-7100 FT AGL
                    BY 1400.
TRANSPORT WINDS.....WEST 9 TO 17 MPH.
SMOKE DISPERSAL.....POOR (26600 KNOT-FT) INCREASING TO GOOD (83500
                    KNOT-FT) BY 1500.

.TONIGHT...
SKY/WEATHER.........MOSTLY CLEAR (20-30 PERCENT).
MIN TEMPERATURE.....39-44 BELOW 9500 FT...36-40 ABOVE 9500 FT.
MAX HUMIDITY........53-57 PERCENT.
20 FOOT WINDS.......BECOMING NORTHWEST 10 TO 15 MPH WITH HIGHER
                    GUSTS BY 2000.
RIDGE TOP WINDS.....NORTHWEST 15 TO 20 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......5500-6500 FT AGL DECREASING TO 2300-3300 FT AGL
                    BY 0100.
TRANSPORT WINDS.....WEST 15 TO 20 MPH.
SMOKE DISPERSAL.....POOR TO GOOD (37300-84600 KNOT-FT).

.MONDAY...
SKY/WEATHER.........PARTLY CLOUDY (50-60 PERCENT). ISOLATED RAIN
                    SHOWERS.
MAX TEMPERATURE.....60-63 BELOW 9500 FT...55-61 ABOVE 9500 FT.
MIN HUMIDITY........22-26 PERCENT.
20 FOOT WINDS.......NORTHWEST 7 TO 10 MPH BECOMING WEST 12 TO
                    16 MPH BY 1400 . GUSTS UP TO 25 MPH BY
                    1400.
RIDGE TOP WINDS.....WEST 15 TO 20 MPH INCREASING TO 25 TO 30 MPH
                    BY 1500.
LAL.................1.
CHC OF WETTING RAIN.3 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3900-4900 FT AGL INCREASING TO 7000-8000 FT AGL
                    BY 1400.
TRANSPORT WINDS.....WEST 14 TO 21 MPH.
SMOKE DISPERSAL.....FAIR (56200 KNOT-FT) INCREASING TO VERY GOOD
                    (111100 KNOT-FT) BY 1500.

.FORECAST DAYS 3 THROUGH 5...
.MONDAY NIGHT...PARTLY CLOUDY. LOWS IN THE MID 30S. WINDS
GENERALLY LESS THAN 10 MPH.

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

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

.THURSDAY...MOSTLY CLEAR. LOWS IN THE MID 30S. HIGHS AROUND 60.
WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...BRANHAM
REQUESTED BY...DAVID WILKINS
REASON FOR REQUEST...WILDFIRE
.TAG 20110924.NORTO.01/RIW