FNUS75 KRIW 211404
FWSRIW

SPOT FORECAST FOR SHADOW MTN RX...TETON INTERAGENCY DISPATCH CENTER
NATIONAL WEATHER SERVICE RIVERTON WY
804 AM MDT WED SEP 21 2011

FORECAST IS BASED ON IGNITION TIME OF 1130 MDT ON SEPTEMBER 21.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

ANOTHER COOL...DRY AND SUNNY DAY TODAY. A WARMING TREND STARTS
TOMORROW AS RIDGING BUILDS IN FROM THE SOUTHWEST. TEMPERATURES
WILL GRADUALLY WARM THROUGH THE WEEKEND AND RHS WILL REMAIN LOW.

FLOW WILL REMAIN NORTHWEST TODAY AS A TROUGH SLIDES SOUTH THROUGH
EASTERN WYOMING TODAY...SHIFTING MORE WESTERLY AS THE TROUGH
PASSES.

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

FORECASTER...ALLEN

.TODAY...
SKY/WEATHER.........SUNNY (5-15 PERCENT).
MAX TEMPERATURE.....68-72.
MIN HUMIDITY........15-23 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH.
RIDGE TOP WINDS.....NORTHWEST 5 TO 10 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3000-4000 FT AGL INCREASING TO 6000-6700 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHWEST 9 TO 12 MPH.
SMOKE DISPERSAL.....POOR (8500-39200 KNOT-FT).

.TONIGHT...
SKY/WEATHER.........CLEAR (0-10 PERCENT).
MIN TEMPERATURE.....31-35.
MAX HUMIDITY........80-85 PERCENT.
20 FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....NORTH AROUND 10 MPH SHIFTING TO THE WEST IN THE
                    LATE EVENING AND OVERNIGHT.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2700-3700 FT AGL DECREASING TO 300 FT AGL AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....NORTH AROUND 10 MPH SHIFTING TO THE WEST 10 TO
                    15 MPH IN THE LATE EVENING AND OVERNIGHT.
SMOKE DISPERSAL.....POOR (3000-33200 KNOT-FT).

.FORECAST DAYS 3 THROUGH 5...
.THURSDAY NIGHT...MOSTLY CLEAR. LOWS IN THE MID 30S. WINDS
GENERALLY LESS THAN 10 MPH.
.FRIDAY...MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE MID
70S. WINDS GENERALLY LESS THAN 10 MPH.
.SATURDAY...CLEAR. LOWS IN THE MID 30S. HIGHS IN THE UPPER 70S.
WINDS GENERALLY LESS THAN 10 MPH.
.SUNDAY...MOSTLY CLEAR. LOWS IN THE MID 30S. HIGHS IN THE UPPER
70S. WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...ALLEN
REQUESTED BY...SHADOW MTN FEMU
REASON FOR REQUEST...PRESCRIBED
.TAG 20110921.SHADO.01/RIW