FNUS75 KRIW 151414
FWSRIW

SPOT FORECAST FOR HUNTER RX...USFS BTF
NATIONAL WEATHER SERVICE RIVERTON WY
814 AM MDT THU SEP 15 2011

FORECAST IS BASED ON IGNITION TIME OF 0755 MDT ON SEPTEMBER 15.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

HIGH PRESSURE WILL BUILD IN TODAY OVER THE BURN AREA. FOG WILL
PERSIST THROUGH LATE MORNING. AFTERNOON CU IS EXPECTED TODAY WITH
AN OUTSIDE CHANCE OF A SHOWER OR STORM OVER THE GROS VENTRES AND
TETONS...WITH A SLIGHT THREAT OF AN OUTFLOW MOVING THROUGH THE
BURN AREA.  A TROUGH WILL MOVE THROUGH FRIDAY BRINGING SCATTERED
TO NUMEROUS SHOWERS AND ISOLATED THUNDERSTORMS FROM THE LATE
MORNING THROUGH THE AFTERNOON. ANOTHER ROUND OF SHOWERS AND STORMS
IS EXPECTED ON SATURDAY.

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

FORECASTER...T.BAKER

.TODAY...
SKY/WEATHER.........MORNING FOG...THEN MOSTLY SUNNY (25-35 PERCENT).
                    BECOMING PARTLY CLOUDY (35-45 PERCENT) BY EARLY
                    AFTERNOON.
MAX TEMPERATURE.....70-73.
MIN HUMIDITY........30-35 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH GUSTS 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.......500 FT AGL INCREASING TO 5000 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....EAST 4 MPH THIS MORNING...THEN WEST TO NORTHWEST
                    8 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (2000 KNOT-FT) AM THEN FAIR (40000 KNOT-FT).

.TONIGHT...
SKY/WEATHER.........PARTLY CLOUDY (20-30 PERCENT).
MIN TEMPERATURE.....AROUND 40.
MAX HUMIDITY........81-84 PERCENT.
20 FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......5000 FT AGL DECREASING TO 1000 FT AGL
                    BY 2200.
TRANSPORT WINDS.....SOUTHWEST 8 MPH...THEN INCREASING TO 15 MPH AFTER
                    MIDNIGHT.
SMOKE DISPERSAL.....FAIR (40000 KNOT-FT) IN THE EVENING...THEN POOR
                    (15000 KNOT-FT).

.FRIDAY...
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). ISOLATED RAIN
                    SHOWERS...THEN NUMEROUS RAIN SHOWERS AND ISOLATED
                    THUNDERSTORMS IN THE AFTERNOON AFTER 1000.
MAX TEMPERATURE.....AROUND 70.
MIN HUMIDITY........40-45 PERCENT.
20 FOOT WINDS.......VARIABLE 3-6 MPH BECOMING SOUTHWEST 10
                    TO 15 MPH WITH HIGHER GUSTS BY LATE MORNING.
                    GUSTY AND ERRATIC WINDS EXPECTED NEAR
                    THUNDERSTORMS.
LAL.................1 UNTIL 1200...THEN 2.
CHC OF WETTING RAIN.70 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 15 MPH.
SMOKE DISPERSAL.....FAIR (45000 KNOT-FT).

.FORECAST DAYS 3 THROUGH 5...
.FRIDAY NIGHT...MOSTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS IN THE EVENING...THEN SCATTERED SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 30S. WINDS GENERALLY LESS THAN
10 MPH.
.SATURDAY...PARTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS IN THE LOWER 30S. HIGHS IN THE MID 60S. WINDS
GENERALLY LESS THAN 10 MPH.
.SUNDAY...PARTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE MID
60S. WINDS GENERALLY LESS THAN 10 MPH.
.MONDAY...PARTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE
UPPER 60S. WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...T.BAKER
REQUESTED BY...MERIDIAN IC
REASON FOR REQUEST...PRESCRIBED
.TAG 20110915.HUNTE.02/RIW