FNUS75 KRIW 161944
FWSRIW

SPOT FORECAST FOR FOREST PARK...IA TDC
NATIONAL WEATHER SERVICE RIVERTON WY
144 PM MDT SUN SEP 16 2012

FORECAST IS BASED ON REQUEST TIME OF 1240 MDT ON SEPTEMBER 16.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

THOUGH CONFIDENCE IS NOT HIGH IN THE DEVELOPMENT OF STORMS...THE
CONTINUED DEVELOPMENT OF CLOUD COVER HAS LED TO THE INCLUSION OF
SHOWERS AND THUNDERSTORMS OVER THE AREA THIS AFTERNOON. THE
POSSIBILITY FOR ASSOCIATED GUSTY OUTFLOW WIND IS THE MAIN CONCERN
WITH ANY STORM DEVELOPMENT. A COLD FRONT IS EXPECTED TO MOVE
THROUGH THE AREA BETWEEN 1500 AND 1700 TODAY...AND THE CHANGE IN
FLOW SHOULD HELP TO LIMIT FURTHER STORM DEVELOPMENT. AFTER THE
FRONTAL PASSAGE...A DRY NORTHWEST FLOW EXPECTED TO DEVELOP OVER
THE FIRE...WITH COOLER TEMPERATURES ANTICIPATED ON MONDAY. THIS
PATTERN WILL END MUCH OF THE OPPORTUNITY FOR AFTERNOON SHOWERS AND
THUNDERSTORMS THROUGH THE WEEK. PERIODS OF GUSTY WIND WILL DEVELOP
DURING THE AFTERNOON HOURS FOR THE NEXT COUPLE OF DAYS...BUT AGAIN
SHOULD WEAKEN DURING THE EARLY EVENING HOURS.

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

FORECASTER...BRANHAM

.TODAY...
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT). ISOLATED SHOWERS
                    AND THUNDERSTORMS POSSIBLE.
MAX TEMPERATURE.....71-74.
MIN HUMIDITY........13-16 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH BECOMING WEST 14 TO 18
                    MPH WITH GUSTS TO AROUND 25 MPH. GUSTY AND
                    ERRATIC WIND MAY BE PRESENT WITH THUNDERSTORMS.
RIDGE TOP WINDS.....INCREASING TO WEST 20 TO 25 MPH BY 1500.
LAL.................2.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.

.TONIGHT...
SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT).
MIN TEMPERATURE.....38-41.
MAX HUMIDITY........59-62 PERCENT.
20 FOOT WINDS.......NORTHWEST WINDS 9 TO 15 MPH WITH GUSTS TO
                    AROUND 25 MPH...BECOMING DOWNSLOPE/DOWNVALLEY
                    4-7 MPH AFTER 2300.
RIDGE TOP WINDS.....WEST 20 TO 25 MPH DECREASING TO AROUND 10 MPH
                    BY 0100...THEN SHIFTING TO THE SOUTH BY 0400.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH...DECREASING TO 4 OR
                    LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE
                    GROWTH AFTER 0100.

.MONDAY...
SKY/WEATHER.........SUNNY (0-10 PERCENT).
MAX TEMPERATURE.....64-67.
MIN HUMIDITY........20-23 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH BECOMING NORTHWEST
                    10-15 MPH WITH HIGHER GUSTS AFTER 1400.
RIDGE TOP WINDS.....EAST AROUND 10 MPH SHIFTING TO THE NORTHWEST 15
                    TO 20 MPH AFTER 1100.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.

.FORECAST DAYS 3 THROUGH 5...
.MONDAY NIGHT...CLEAR. LOWS IN THE UPPER 30S. WINDS GENERALLY
LESS THAN 10 MPH.

.TUESDAY...CLEAR. LOWS AROUND 40. HIGHS AROUND 70. WINDS
GENERALLY LESS THAN 10 MPH.

.WEDNESDAY...CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER
70S. WINDS GENERALLY LESS THAN 10 MPH.

.THURSDAY...CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 70S.
WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...BRANHAM
REQUESTED BY...LOOKOUT
REASON FOR REQUEST...WILDFIRE
.TAG 20120916.FORES.01/RIW