FNUS75 KRIW 020303
FWSRIW

SPOT FORECAST FOR BULL...USFS BTF
NATIONAL WEATHER SERVICE RIVERTON WY
903 PM MDT SUN AUG 1 2010

FORECAST IS BASED ON REQUEST TIME OF 2028 MDT ON AUGUST 01.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
WEST SOUTHWEST FLOW ALOFT WILL USHER IN DRIER AIR FOR
MONDAY...WITH LITTLE CHANCE IF ANY FOR THUNDERSTORMS. WINDS WILL
BE SLOPE AND TERRAIN DRIVEN...WITH WEST SOUTHWEST RIDGETOP WINDS
EXPECTED. IT WILL BE SUNNY TODAY WITH MILD TEMPERATURES WHILE RH'S
WILL BE MUCH LOWER OVER SUNDAY'S VALUES. LIGHT AND VARIABLE WINDS
EXPECTED MONDAY NIGHT WITH CLEAR SKIES EXPECTED. ANOTHER SURGE OF
SUBTROPICAL WILL BEGIN TO MOVE NORTH INTO WESTERN WYOMING...WITH
THE CHANCE OF THUNDERSTORMS RETURNING.

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

FORECASTER...T.BAKER

.TODAY...
SKY/WEATHER.........SUNNY (0-10 PERCENT).
MAX TEMPERATURE.....AROUND 75.
MIN HUMIDITY........20-25 PERCENT...COULD SEE HIGHER VALUES AT STREAM
                    BOTTOMS.
WIND (20 FT)........UPSLOPE/UPVALLEY 3-5 MPH...SOME GUSTS TO 10 MPH.
RIDGE TOP WINDS.....VARIABLE 2 TO 4 MPH THROUGH 1100...THEN BECOMING WEST
                    SOUTHWEST 5 TO 10 MPH GUSTS TO 15 MPH.
LAL.................1.
CWR.................ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......500 FT AGL INCREASING TO 8000 FT AGL IN
                    THE AFTERNOON.
TRANSPORT WINDS.....VARIABLE AROUND 5 MPH THROUGH 1100...THEN BECOMING
                    WEST SOUTHWEST AROUND 15 MPH.
SMOKE DISPERSAL.....POOR (2500 KNOT-FT) THROUGH 1100 THEN
                    VERY GOOD (120000 KNOT-FT).

.TONIGHT...
SKY/WEATHER.........MOSTLY CLEAR (0-10 PERCENT).
MIN TEMPERATURE.....41-44.
MAX HUMIDITY........64-67 PERCENT.
WIND (20 FT)........DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....WEST AROUND 10 MPH SHIFTING TO THE SOUTHEAST
                    AFTER MIDNIGHT.
LAL.................1.
CWR.................ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......8000 FT AGL THROUGH 2100...THEN BECOMING 500 FT AGL.
TRANSPORT WINDS.....WEST AROUND 10 MPH SHIFTING BECOMING VARIABLE
                    AROUND 5 MPH AFTER 2100.
SMOKE DISPERSAL.....GOOD (80000 KNOT-FT) THROUGH 2100...THEN
                    POOR (2500 KNOT-FT).

.TUESDAY...
SKY/WEATHER.........MOSTLY SUNNY (15-25 PERCENT). SLIGHT CHANCE OF
                    THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....70-75.
MIN HUMIDITY........21-25 PERCENT.
WIND (20 FT)........UPSLOPE/UPVALLEY 5-9 MPH.
RIDGE TOP WINDS.....VARIABLE AROUND 5 MPH THROUGH 1100...THEN BECOMING
                    WEST SOUTHWEST 10-15 MPH GUSTS TO 20 MPH.
LAL.................1 THEN 2 IN THE AFTERNOON.
CWR.................LESS THAN 5 PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3000 FT AGL THROUGH 1100 THEN INCREASING TO 10000 FT
                    AGL IN THE AFTERNOON.
TRANSPORT WINDS.....VARIABLE AROUND 5 MPH THROUGH 1100...THEN BECOMING
                    SOUTHWEST AROUND 15 MPH.
SMOKE DISPERSAL.....FAIR (4500 KNOT-FT) THROUGH 1100...THEN BECOMING
                    EXCELLENT (150000 KNOT-FT).

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

$$

FORECASTER...T.BAKER
REQUESTED BY...BILL MOE
REASON FOR REQUEST...WILDFIRE
.TAG 20100801.BULL_.01/RIW