FNUS75 KRIW 111434
FWSRIW

SPOT FORECAST FOR DEADLINE...BLM
NATIONAL WEATHER SERVICE RIVERTON WY
834 AM MDT SAT AUG 11 2012

FORECAST IS BASED ON REQUEST TIME OF 0816 MDT ON AUGUST 11.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

A FEW MORE SHOWERS AND A WET THUNDERSTORM OR TWO WILL MOVE THROUGH
THIS MORNING AHEAD OF A PUSH OF VERY DRY AIR COMING FROM THE WEST.
AN UPPER LEVEL TROUGH WILL MOVE THROUGH WITH THE BACK SIDE OF IT
MOVING THROUGH LATE THIS MORNING THROUGH THE AFTERNOON...THE DOWNWARD
MOTION ASSOCIATED WITH THE BACK SIDE OF THE TROUGH WILL ENCOURAGE
STRONGER WINDS TO REACH THE SURFACE. THERE IS A RED FLAG WARNING
FOR STRONG WIND AND LOW HUMIDITY IN THE ZONE JUST SOUTH OF THE
FIRE...DUE TO ITS PROXIMITY TO THE CRITICAL AREA SOME OF THESE
CONDITIONS ARE EXPECTED TO BLEED UP INTO THE FIRE AREA TODAY. RH
RECOVERY WILL BE POOR OVERNIGHT WITH A RETURN TO CRITICALLY LOW
HUMIDITY ON SUNDAY...HOWEVER WINDS WILL BE LIGHTER AND TERRAIN DRIVEN.

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

FORECASTER...ALLEN

.TODAY...
SKY/WEATHER.........MOSTLY CLOUDY (60-70 PERCENT) THEN BECOMING
                    PARTLY CLOUDY (45-55 PERCENT). SCATTERED RAIN
                    SHOWERS AND ISOLATED THUNDERSTORMS IN THE
                    MORNING.
MAX TEMPERATURE.....72-75.
MIN HUMIDITY........16-19 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH BECOMING NORTHWEST 15
                    TO 20 MPH WITH HIGHER GUSTS IN THE AFTERNOON.
RIDGE TOP WINDS.....WEST 15 TO 25 MPH.
LAL.................2 UNTIL 1200...THEN 1.
CHC OF WETTING RAIN.5 PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.

.TONIGHT...
SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT).
MIN TEMPERATURE.....43-46.
MAX HUMIDITY........30-40 PERCENT.
20 FOOT WINDS.......NORTHWEST WINDS AROUND 15 MPH AND GUSTY EARLY
                    IN THE EVENING BECOMING DOWNSLOPE/DOWNVALLEY
                    4-7 MPH.
RIDGE TOP WINDS.....NORTHWEST 15 TO 20 MPH DECREASING TO AROUND 10
                    MPH AFTER MIDNIGHT.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.

.SUNDAY...
SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT).
MAX TEMPERATURE.....75-78.
MIN HUMIDITY........13-17 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. GUSTS UP TO 15 MPH IN
                    THE AFTERNOON.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.

.FORECAST DAYS 3 THROUGH 5...
.SUNDAY NIGHT...PARTLY CLOUDY. LOWS IN THE MID 40S. WINDS
GENERALLY LESS THAN 10 MPH.
.MONDAY...PARTLY CLOUDY WITH ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS IN THE UPPER 40S. HIGHS IN THE MID 70S. NORTHWEST WINDS AROUND
15 MPH IN THE AFTERNOON.
.TUESDAY...PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON AND EVENING. LOWS IN THE MID 40S.
HIGHS IN THE LOWER 70S. NORTHWEST WINDS 15 TO 25 MPH IN THE AFTERNOON.
.WEDNESDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
ISOLATED THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER
70S. NORTHWEST WINDS AROUND 15 MPH.

$$

FORECASTER...ALLEN
REQUESTED BY...RATTAN
REASON FOR REQUEST...WILDFIRE
.TAG 20120811.DEADL.01/RIW