FNUS75 KRIW 231204
FWSRIW

SPOT FORECAST FOR GRAVEL...TETON INTERAGENCY DISPATCH
NATIONAL WEATHER SERVICE RIVERTON WY
604 AM MDT MON AUG 23 2010

FORECAST IS BASED ON REQUEST TIME OF 1613 MDT ON AUGUST 22.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...SOME CLOUDS THIS MORNING WITH ISOLATED SHOWERS POSSIBLE
UNTIL NOON. THEN CLOUDS WILL BE DECREASING IN THE AFTERNOON. CLEAR
AND DRY TONIGHT THROUGH TUESDAY NIGHT.

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

FORECASTER...AR

.TODAY...
SKY/WEATHER.........MOSTLY CLOUDY WITH ISOLATED SHOWERS UNTIL NOON.
                    MOSTLY SUNNY THIS AFTERNOON.
MAX TEMPERATURE.....58 TO 62.
MIN HUMIDITY........27-32 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY AT 3 TO 6 MPH. WIND BECOMING WEST
                    TO SOUTHWEST 7 TO 12 MPH WITH GUSTS AROUND 15 MPH
                    AFTER 1200.
RIDGE TOP WINDS.....WEST TO SOUTHWEST 5 TO 10 MPH UNTIL NOON.
                    WEST AT 10 TO 15 MPH WITH GUSTS TO 20 MPH
                    AFTER 1200.
LAL.................1.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......INCREASING TO 5000 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....WEST AROUND 15 MPH.
SMOKE DISPERSAL.....INCREASING TO GOOD IN THE AFTERNOON.

.TONIGHT...
SKY/WEATHER.........CLEAR.
MIN TEMPERATURE.....30-35.
MAX HUMIDITY........80-85 PERCENT.
20 FOOT WINDS.......WEST TO SOUTHWEST 5 TO 10 MPH WITH GUSTS TO 15 MPH
                    UNTIL SUNSET...THEN WIND BECOMING DOWNSLOPE/DOWNVALLEY
                    AT 4 TO 7 MPH BY MIDNIGHT.
RIDGE TOP WINDS.....WEST AT 10 TO 15 MPH SHIFTING TO THE EAST AT 5 TO 9 MPH
                    AROUND MIDNIGHT.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......DECREASING TO 500 FT AGL AFTER MIDNIGHT.
TRANSPORT WINDS.....WEST AT 15 MPH...BECOMING EAST AT 8 MPH AFTER MIDNIGHT.
SMOKE DISPERSAL.....DECREASING TO POOR AROUND MIDNIGHT.

.TUESDAY...
SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....68-72.
MIN HUMIDITY........18-23 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY AT 3 TO 6 MPH IN THE MORNING.
                    WIND BECOMING SOUTHWEST 4 TO 8 MPH AFTER 1 PM.
RIDGE TOP WINDS.....VARIABLE AT 5 MPH IN THE MORNING.
                    WIND BECOMING SOUTHWEST 5 TO 10 MPH AFTER 1 PM.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......INCREASING TO 6500 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....VARIABLE AROUND 5 MPH IN THE MORNING.
                    SOUTHWEST AROUND 10 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR...BECOMING FAIR BY NOON...THEN BECOMING
                    GOOD AFTER 1 PM.

.FORECAST DAYS 3 THROUGH 5...

.TUESDAY NIGHT...CLEAR. LOWS 35 TO 40.
WINDS GENERALLY LESS THAN 10 MPH.

.WEDNESDAY...CLEAR. HIGHS IN THE MID 70S.
WINDS GENERALLY LESS THAN 10 MPH.

.THURSDAY...PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 40S. HIGHS IN THE UPPER 70S.
WINDS GENERALLY LESS THAN 10 MPH...EXCEPT ERRATIC WIND NEAR STORMS.

.FRIDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 40S.  HIGHS AROUND 70.
WINDS SOUTHWEST AROUND 15 MPH...EXCEPT ERRATIC WIND NEAR STORMS.

$$

FORECASTER...ROSS
REQUESTED BY...TIDC
REASON FOR REQUEST...WILDFIRE
.TAG 20100822.GRAVE.02/RIW