FNUS75 KRIW 200112
FWSRIW

SPOT FORECAST FOR SPALDING...IA TDC
NATIONAL WEATHER SERVICE RIVERTON WY
712 PM MDT MON SEP 19 2011

FORECAST IS BASED ON REQUEST TIME OF 1816 MDT ON SEPTEMBER 19.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...A CANADIAN COLD FRONT WILL CONTINUE TO PLUNGE
SOUTH...MAINLY EAST OF THE DIVIDE...THIS EVENING. THOUGH LIGHT
WIND WERE OBSERVED AT THE SITE...GUSTY WEST WINDS PREVAILED ACROSS
GTNP EARLY THIS EVENING. A FEW SHOWERS DEVELOPING TO THE NORTH OF THE
FIRE MAY PUSH INTO THE AREA BEFORE 2100. EXPECT AN ABRUBT WIND
SHIFT FROM THE NORTH BETWEEN 2000 AND 2100. A MUCH COOLER AND DRY
NORTHWEST FLOW WILL PREVAIL ON TUESDAY.

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

FORECASTER...MEUNIER

.TONIGHT...
SKY/WEATHER.........PARTLY CLOUDY (50-60 PERCENT) WITH ISOLATED SHOWERS
                    THROUGH 2100.
MIN TEMPERATURE.....34-37.
MAX HUMIDITY........70-73 PERCENT.
20 FOOT WINDS.......WEST SOUTHWEST 5 TO 10 MPH WITH GUSTS 15 TO 20 MPH THROUGH
                    2100...THEN SHIFTING FROM THE NORTH 15 TO 20 MPH WITH
                    THESE WINDS GRADUALLY DECREASING AFTER MIDNIGHT.
RIDGE TOP WINDS.....SOUTHWEST 20 TO 25 MPH SHIFTING TO THE NORTH
                    AROUND 15 MPH AFTER 2100.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......6200-7200 FT AGL DECREASING TO BELOW 1000 FT AGL
                    AFTER MIDNIGHT.
TRANSPORT WINDS.....WEST 25 TO 30 MPH BECOMING NORTHWEST 12 TO 17
                    MPH AFTER 2100...BECOMING NORTHEAST 5 TO 10 MPH
                    AFTER MIDNIGHT.
SMOKE DISPERSAL.....VERY GOOD THROUGH 2100...DECREASING TO POOR AFTER MIDNIGHT.

.TUESDAY...
SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT).
MAX TEMPERATURE.....62-65.
MIN HUMIDITY........22-25 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 4-7 MPH AFTER 0900...BECOMING
                    NORTHWEST 5 TO 10 MPH AFTER 1500.
RIDGE TOP WINDS.....NORTHWEST 5 TO 10 MPH INCREASING TO 10 TO 15 MPH
                    IN THE AFTERNOON.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......BELOW 1000 FT AGL THROUGH 0900...INCREASING
                    TO 5900-6900 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH IN THE MORNING...INCREASING TO
                    20 TO 25 MPH LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR...INCREASING TO GOOD AFTER 1500.

.FORECAST DAYS 3 THROUGH 5...
.TUESDAY NIGHT...MOSTLY CLEAR. LOWS IN THE MID 30S. WINDS
GENERALLY LESS THAN 10 MPH.

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

.THURSDAY...CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE LOWER 70S.
WINDS GENERALLY LESS THAN 10 MPH.

.FRIDAY...CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE MID 70S.
WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...MEUNIER
REQUESTED BY...SPALDING FEMU
REASON FOR REQUEST...WILDFIRE
.TAG 20110919.SPALD.01/RIW