FNUS75 KRIW 202232
FWSRIW

SPOT FORECAST FOR ROOSEVELT...USFS BTF
NATIONAL WEATHER SERVICE RIVERTON WY
432 PM MDT MON JUL 20 2009

FORECAST IS BASED ON REQUEST TIME OF 1548 MDT ON JULY 20.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...A DRY NORTHWEST FLOW ALOFT WILL REMAIN OVER THE
AREA...DOWNSTREAM OF AN UPPER LEVEL RIDGE OVER THE INTERMOUNTAIN
WEST. SOME MID AND HIGH LEVEL MOISTURE WILL ROTATE INTO WESTERN
WYOMING TUESDAY AFTERNOON RESULTING IN MORE CLOUD COVER AND VERY
ISOLATED HIGH-BASED THUNDERSTORMS DEVELOPING...THE CHANCES OF ONE
HITTING THE FIRE AREA WILL BE VERY SMALL. TEMPERATURES WILL BE
SLIGHTLY WARMER TUESDAY WITH A SIMILAR WIND PROFILE AS TODAY.


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

FORECASTER...MEUNIER

.REST OF TODAY...
SKY/WEATHER.........MOSTLY SUNNY (10 PERCENT).
MAX TEMPERATURE.....71-74.
MIN HUMIDITY........40-45 PERCENT.
20 FOOT WINDS.......NORTHWEST WINDS 5 TO 10 MPH.
RIDGE TOP WINDS.....NORTHWEST WIND AROUND 15 MPH
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH.
MIXING HEIGHT.......9000 FT AGL.
TRANSPORT WINDS.....NORTHWEST 20 MPH.
SMOKE DISPERSAL.....VERY GOOD (131100 KNOT-FT).

.TONIGHT...
SKY/WEATHER.........CLEAR (0-10 PERCENT).
MIN TEMPERATURE.....42-45.
MAX HUMIDITY........75-78 PERCENT.
20 FOOT WINDS.......NORTHWEST WINDS 8 TO 14 MPH WITH GUSTS TO 20 MPH BECOMING
                    DOWNSLOPE/DOWNVALLEY 4-7 MPH AROUND MIDNIGHT.
RIDGE TOP WINDS.....NORTHWEST 15 MPH SHIFTING TO THE NORTH
                    5 TO 10 MPH AFTER MIDNIGHT.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......4400 FT AGL DECREASING TO 300 FT AGL AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....NORTHWEST 14 TO 22 MPH SHIFTING TO THE NORTH 9
                    TO 12 MPH AFTER MIDNIGHT.
SMOKE DISPERSAL.....GOOD (60500 KNOT-FT) DECREASING TO POOR (2400
                    KNOT-FT) AFTER MIDNIGHT.

.TUESDAY...
SKY/WEATHER.........MOSTLY SUNNY (15-25 PERCENT).
MAX TEMPERATURE.....72-75.
MIN HUMIDITY........40-45 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH BECOMING WEST NORTHWEST
                    5 TO 10 MPH AROUND 1400L.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......5900 FT AGL INCREASING TO 9100 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....NORTHWEST 15 MPH.
SMOKE DISPERSAL.....FAIR (53400 KNOT-FT) INCREASING TO VERY GOOD
                    (108400 KNOT-FT) IN THE AFTERNOON.

.FORECAST DAYS 3 THROUGH 5...
.TUESDAY NIGHT...MOSTLY CLEAR. LOWS IN THE MID 40S. WINDS
GENERALLY LESS THAN 10 MPH.
.WEDNESDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE MID 70S. WINDS
GENERALLY LESS THAN 10 MPH.
.THURSDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE UPPER 70S.
WINDS GENERALLY LESS THAN 10 MPH.
.FRIDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE MID 70S. WINDS
GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...MEUNIER
REQUESTED BY...DWAYNE GIBBONS
REASON FOR REQUEST...WILDFIRE
.TAG 20090720.ROOSE.01/RIW