FNUS75 KRIW 131004
FWSRIW

SPOT FORECAST FOR GREEN FIRE...USFS BTF
NATIONAL WEATHER SERVICE RIVERTON WY
404 AM MDT TUE AUG 13 2013

FORECAST IS BASED ON REQUEST TIME OF 2146 MDT ON AUGUST 12.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
TODAY WILL BE VERY SIMILAR IN MOST RESPECTS TO MONDAY...EXCEPT FOR
SLIGHTLY MORE SHOWER AND THUNDERSTORM COVERAGE...BUT LESS GUSTY WIND
POTENTIAL. HIGH TEMPERATURES WILL ALSO DROP A COUPLE OF DEGREES
TODAY AND RH VALUES WILL RISE SOME...SO FIRE CONCERNS...EXCEPT FOR
LIGHTING...WILL DECREASE ACCORDINGLY.

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

FORECASTER...LIPSON

.TODAY...
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). SCATTERED
                    SHOWERS AND THUNDERSTORMS BY 1300.
MAX TEMPERATURE.....64 AT 9000 FEET AND 59 AT 10500 FEET.
MIN HUMIDITY........32 PERCENT AT 9000 FEET AND 37 PERCENT AT 10500 FEET.
20 FOOT WINDS.......UPSLOPE/UPVALLEY FROM THE WEST 5-9 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS IN THE LATE
                    MORNING AND AFTERNOON.
RIDGE TOP WINDS.....WEST AROUND 10 MPH SHIFTING TO THE NORTH IN THE
                    AFTERNOON.
LAL.................1 UNTIL 0900...THEN 4.
CHC OF WETTING RAIN.32 PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......3700-4700 FT AGL INCREASING TO 7900-8900 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....WEST 12 TO 13 MPH SHIFTING TO THE NORTH 12 TO
                    14 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....FAIR TO GOOD (42800-79100 KNOT-FT).

.TONIGHT...
SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT). ISOLATED
                    THUNDERSTORMS IN THE EVENING. CLEARING AFTER MIDNIGHT.           SHOWERS THROUG
MIN TEMPERATURE.....37-39.
MAX HUMIDITY........59-62 PERCENT.
20 FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH FROM THE NORTHEAST.
                    GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN THE
                    EVENING.
RIDGE TOP WINDS.....VARIABLE 5 MPH.
LAL.................2.
CHC OF WETTING RAIN.3 PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......6800-7800 FT AGL DECREASING TO 3200-4200 FT AGL
                    AFTER MIDNIGHT.
TRANSPORT WINDS.....NORTHWEST 7 TO 9 MPH SHIFTING TO THE SOUTHWEST
                    AFTER MIDNIGHT.
SMOKE DISPERSAL.....POOR TO FAIR (16500-48800 KNOT-FT).

.WEDNESDAY...
SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT). ISOLATED SHOWERS
                    AND THUNDERSTORMS IN THE AFTERNOON BY 1500.
MAX TEMPERATURE.....67 AT 9000 FEET AND 62 AT 10500 FEET.
MIN HUMIDITY........26 PERCENT AT 9000 FEET AND 30 PERCENT AT 10500 FEET.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH BECOMING WEST AROUND
                    11 MPH WITH HIGHER GUSTS AFTER 1500 IN THE AFTERNOON.
                    GUSTY AND ERRATIC WINDS EXPECTED NEAR
                    THUNDERSTORMS IN THE AFTERNOON.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH SHIFTING TO THE WEST IN THE
                    AFTERNOON.
LAL.................1 UNTIL 1200...THEN 2.
CHC OF WETTING RAIN.4 PERCENT.
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......3500-4500 FT AGL INCREASING TO 8600-9600 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST AROUND 12 MPH SHIFTING TO THE
                    NORTHWEST 10 TO 14 MPH IN THE LATE MORNING AND
                    AFTERNOON.
SMOKE DISPERSAL.....POOR (39500 KNOT-FT) INCREASING TO VERY GOOD
                    (112500 KNOT-FT) IN THE AFTERNOON.

.FORECAST DAYS 3 THROUGH 5...
.WEDNESDAY NIGHT...MOSTLY CLEAR. ISOLATED SHOWERS AND
THUNDERSTORMS IN THE EVENING. LOWS IN THE MID 40S. WINDS
GENERALLY LESS THAN 10 MPH.
.THURSDAY...MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS IN THE LOWER
70S. WINDS GENERALLY LESS THAN 10 MPH.
.FRIDAY...MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS IN THE LOWER
70S. WINDS GENERALLY LESS THAN 10 MPH.
.SATURDAY...MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS IN THE LOWER
70S. WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...LIPSON
REQUESTED BY...ROD DYKEHOUSE
REASON FOR REQUEST...WILDFIRE
.TAG 20130812.GREEN.01/RIW