FNUS75 KRIW 081107
FWSRIW

SPOT FORECAST FOR BULL...TETON INTERAGENCY DISPATCH
NATIONAL WEATHER SERVICE RIVERTON WY
507 AM MDT SUN AUG 8 2010

FORECAST IS BASED ON REQUEST TIME OF 1829 MDT ON AUGUST 07.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...DRY WEATHER THIS MORNING. SHOWERS AND STORMS WILL
DEVELOP AND HAVE THE POTENTIAL TO IMPACT THE FIRE SITE AT TIMES
FROM 200 PM UNTIL 900 PM. LIGHTNING AND ERRATIC WIND GUSTS WILL
BE THE MAIN THREATS. BRIEF HEAVY RAIN COULD OCCUR IF A STORM
MOVES DIRECTLY OVER THE FIRE SITE. ONLY ISOLATED SHOWERS OR STORMS
WILL OCCUR AFTER 900 PM THROUGH DAYBREAK MONDAY.

A WEATHER SYSTEM IS FORECAST TO MOVE THROUGH EASTERN IDAHO AND
WESTERN WYOMING ON MONDAY. THUS THUNDERSTORM ACTIVITY IS EXPECTED
TO START AS EARLY AS 900 AM MONDAY AND PERSIST THROUGH NOON. THEN
A BREAK MAY OCCUR FOR A FEW HOURS WITH THUNDERSTORM REDEVELOPMENT
EXPECTED LATER MONDAY AFTERNOON...AFTER 300 PM...AND LAST INTO THE
EARLY EVENING HOURS. BE ADVISED THAT WEATHER CONDITIONS COULD
CHANGE RAPIDLY ON MONDAY.

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

FORECASTER...AR

.TODAY...
SKY/WEATHER.........PARTLY CLOUDY THIS MORNING. INCREASING CLOUDS
                    THIS AFTERNOON. SCATTERED SHOWERS AND
                    THUNDERSTORMS AFTER 200 PM.
MAX TEMPERATURE.....70 TO 75.
MIN HUMIDITY........23 TO 28 PERCENT.
WIND (20 FT)........UPSLOPE/UPVALLEY AT 5 TO 8 MPH UNTIL NOON.
                    WIND BECOMING WEST TO SOUTHWEST AT 5 TO 10 MPH
                    BY 200 PM WITH GUSTS TO 15 MPH.
                    GUSTY AND ERRATIC WINDS TO 35 MPH EXPECTED NEAR
                    THUNDERSTORMS DURING THE AFTERNOON.
RIDGE TOP WINDS.....EAST TO SOUTHEAST 6 TO 11 MPH UNTIL NOON.
                    THEN WIND BECOMING SOUTHWEST TO WEST AT 10 TO
                    15 MPH WITH GUSTS TO 20 MPH.
                    GUSTY AND ERRATIC WINDS TO 35 MPH EXPECTED NEAR
                    THUNDERSTORMS DURING THE AFTERNOON.
LAL.................1 UNTIL 1200...THEN 4.
CWR.................7 PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......INCREASING TO 7500-8000 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHEAST TO SOUTH AT 8 MPH THIS MORNING.
                    THEN SOUTHWEST AT 15 MPH BY 200 PM IN THE AFTERNOON.
SMOKE DISPERSAL.....FAIR...INCREASING TO VERY GOOD IN THE AFTERNOON.

.TONIGHT...
SKY/WEATHER.........MOSTLY CLOUDY UNTIL MIDNIGHT...THEN PARTLY CLOUDY.
                    ISOLATED SHOWERS AND THUNDERSTORMS.
MIN TEMPERATURE.....47 TO 52.
MAX HUMIDITY........70 TO 75 PERCENT.
WIND (20 FT)........WEST TO SOUTHWEST AT 5 TO 10 MPH UNTIL 800 PM.
                    THEN EAST TO NORTHEAST AT 4 TO 8 MPH AFTER 800 PM.
                    GUSTY AND ERRATIC WINDS TO 30 MPH EXPECTED
                    NEAR THUNDERSTORMS.
RIDGE TOP WINDS.....WEST TO SOUTHWEST AT 10 TO 15 MPH UNTIL 800 PM.
                    THEN EAST TO NORTHEAST AT 5 TO 10 MPH AFTER 800 PM.
LAL.................2.
CWR.................4 PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......DECREASING TO 1000 FT AGL AFTER MIDNIGHT.
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH...BECOMING EAST AT 7 MPH
                    BY 900 PM.
SMOKE DISPERSAL.....GOOD DECREASING TO POOR BY MIDNIGHT.

.MONDAY...
SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED SHOWERS AND
                    THUNDERSTORMS IN THE MORNING AS WELL AS THE
                    AFTERNOON.
MAX TEMPERATURE.....65 TO 70.
MIN HUMIDITY........30 TO 35 PERCENT.
WIND (20 FT)........UPSLOPE/UPVALLEY 4 TO 7 MPH IN THE MORNING.
                    WEST TO SOUTHWEST 6 TO 11 MPH AFTER 1200 PM
                    WITH GUSTS TO 17 MPH.
                    GUSTY AND ERRATIC WINDS TO 35 MPH EXPECTED
                    NEAR THUNDERSTORMS IN THE MORNING AND THE
                    AFTERNOON.
RIDGE TOP WINDS.....SOUTH TO SOUTHEAST AROUND 10 MPH IN THE MORNING.
                    WEST TO SOUTHWEST AT 10 TO 15 MPH AFTER 1200 PM
                    WITH GUSTS TO 20 MPH.
LAL.................4.
CWR.................13 PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......INCREASING TO 7000 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH IN THE MORNING.
                    SOUTHWEST 15 TO 20 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR INCREASING TO FAIR BY NOON...INCREASING
                    TO VERY GOOD BY 300 PM.

.FORECAST DAYS 3 THROUGH 5...

.MONDAY NIGHT...PARTLY CLOUDY. ISOLATED SHOWERS AND
THUNDERSTORMS. LOWS 45 TO 51. WINDS GENERALLY LESS THAN 10 MPH.

.TUESDAY...PARTLY CLOUDY WITH ISOLATED SHOWERS AND THUNDERSTORMS.
HIGHS IN THE UPPER 60S TO LOWER 70S.
WINDS GENERALLY LESS THAN 10 MPH.

.WEDNESDAY...PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 45 TO 50. HIGHS IN THE LOWER 70S.
WINDS GENERALLY LESS THAN 10 MPH.

.THURSDAY...PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 45 TO 50. HIGHS IN THE LOWER 70S.
WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...ROSS
REQUESTED BY...BULL LOOKOUT
REASON FOR REQUEST...WILDFIRE
.TAG 20100807.BULL_.01/RIW