FNUS75 KRIW 280229
FWSRIW

SPOT FORECAST FOR FONTENELLE FIRE...USFS BTF
NATIONAL WEATHER SERVICE RIVERTON WY
829 PM MDT WED JUN 27 2012

FORECAST IS BASED ON REQUEST TIME OF 1958 MDT ON JUNE 27.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...RED FLAG WARNING IN EFFECT UNTIL 10 PM MDT THURSDAY FOR STRONG
WIND AND LOW RELATIVE HUMIDITY...

.DISCUSSION...A VERY DRY WEST SOUTHWEST FLOW WILL REMAIN OVER THE
AREA THURSDAY AND FRIDAY WITH TEMPERATURES TRENDING SLIGHTLY
WARMER AND LITTLE CHANGE IN RELATIVE HUMIDITY. THE TIMING OF THE MIXING
OF WEST SOUTHWEST WIND WILL BE SIMILAR TO TODAY...GUSTY WEST
SOUTHWEST WINDS DEVELOPING FROM LATE MORNING THROUGH AROUND
SUNSET. A WEAK...DRY UPPER LEVEL DISTURBANCE MOVING ACROSS THE
AREA THURSDAY AFTERNOON WILL LIKELY RESULT IN STRONGER GUSTS OVER
40 MPH IN THE AFTERNOON. WINDS WILL TREND RELATIVELY LIGHTER AND
VEER MORE WESTERLY ON FRIDAY.

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

FORECASTER...MEUNIER

.THURSDAY...
SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT).
MAX TEMPERATURE.....74-77.
MIN HUMIDITY........9-12 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY OR SOUTHEAST 4-7  MPH
                    BECOMING SOUTHWEST 20 TO 25 MPH WITH GUSTS 35 TO 40 MPH
                    BETWEEN 1000 AND NOON.
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH INCREASING TO 25 TO 30
                    MPH IN THE AFTERNOON.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......4500-5500 FT AGL INCREASING TO 8700-9700 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST AROUND 25 MPH.
SMOKE DISPERSAL.....VERY GOOD (103100 KNOT-FT) INCREASING TO
                    EXCELLENT (187800 KNOT-FT) IN THE AFTERNOON.

.THURSDAY NIGHT...
SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT).
MIN TEMPERATURE.....AROUND 40.
MAX HUMIDITY........45-54 PERCENT.
20 FOOT WINDS.......WEST WINDS 10 TO 15 MPH WITH GUSTS TO AROUND 25
                    MPH UNTIL AROUND 9 PM...THEN DIMINISHING AND BECOMING
                    DOWNSLOPE/DOWNVALLEY 4-7 MPH AROUND MIDNIGHT.
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH DECREASING TO 10 TO 15
                    MPH AFTER MIDNIGHT.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......4000-5000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 20 MPH DECREASING TO 10 TO 15
                    MPH AFTER MIDNIGHT.
SMOKE DISPERSAL.....FAIR TO GOOD (57600-89400 KNOT-FT).

.FRIDAY...
SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT).
MAX TEMPERATURE.....75-78.
MIN HUMIDITY........9-12 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY OR SOUTHEAST 4-7 MPH BECOMING WEST AROUND 15
                    MPH WITH GUSTS 25 TO 30 MPH IN THE AFTERNOON.
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH INCREASING TO AROUND 20
                    MPH IN THE AFTERNOON.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......8800-9800 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 20 TO 25 MPH.
SMOKE DISPERSAL.....VERY GOOD TO EXCELLENT (137700-169600 KNOT-FT).

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

.SATURDAY...MOSTLY CLEAR. LOWS AROUND 40. HIGHS IN THE UPPER 70S.
WINDS GENERALLY LESS THAN 10 MPH.

.SUNDAY...MOSTLY CLEAR. LOWS IN THE LOWER 40S. HIGHS AROUND 80.
WINDS GENERALLY LESS THAN 10 MPH.

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

$$

FORECASTER...MEUNIER
REQUESTED BY...STEVE COBB FBAN
REASON FOR REQUEST...WILDFIRE
.TAG 20120627.FONTE.01/RIW