FNUS75 KRIW 302045
FWSRIW

SPOT FORECAST FOR BULL...IA TDC
NATIONAL WEATHER SERVICE RIVERTON WY
245 PM MDT FRI JUL 30 2010

FORECAST IS BASED ON REQUEST TIME OF 1422 MDT ON JULY 30.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
A RIDGE OF HIGH PRESSURE OVER THE FOUR CORNERS REGION CONTINUES TO
BRING MONSOONAL MOISTURE TO THE FIRE AREA. THIS WILL HELP ISOLATED
SHOWERS AND THUNDERSTORMS TO FORM DURING THE EVENING HOURS. RIDGE
TOP WINDS WILL BECOME LIGHTER FROM THE EAST AS A LOW PRESSURE
SYSTEM MOVES ASHORE IN THE PACIFIC NORTHWEST. ISOLATED AFTERNOON
AND EVENING SHOWERS AND THUNDERSTORMS ARE AGAIN POSSIBLE SATURDAY
AS MONSOONAL MOISTURE CONTINUES TO HOLD ON ACROSS THE AREA.


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

FORECASTER...BERC

.TONIGHT...
SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT). ISOLATED SHOWERS
                    AND THUNDERSTORMS IN THE EVENING.
MIN TEMPERATURE.....AROUND 50.
MAX HUMIDITY........69-72 PERCENT.
WIND (20 FT)........DOWNSLOPE/DOWNVALLEY 7-10 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS IN THE
                    EVENING.
RIDGE TOP WINDS.....WEST SOUTHWEST AROUND 12 MPH SHIFTING TO THE EAST AFTER
                    MIDNIGHT.
LAL.................2 UNTIL 2400...THEN 1.
CWR.................3 PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......6300-7300 FT AGL DECREASING TO 2200-3200 FT AGL
                    AFTER MIDNIGHT.
TRANSPORT WINDS.....WEST SOUTHWEST 13 TO 17 MPH SHIFTING TO THE EAST AROUND 7
                    MPH AFTER MIDNIGHT.
SMOKE DISPERSAL.....POOR (4100-37200 KNOT-FT).

.SATURDAY...
SKY/WEATHER.........MOSTLY SUNNY (15-25 PERCENT) THEN BECOMING
                    PARTLY CLOUDY (50-60 PERCENT). SCATTERED
                    SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....71-74.
MIN HUMIDITY........32-35 PERCENT.
WIND (20 FT)........UPSLOPE/UPVALLEY 5-9 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS IN THE
                    AFTERNOON.
RIDGE TOP WINDS.....SOUTH 10 TO 15 MPH.
LAL.................1 UNTIL 1200...THEN 4.
CWR.................5 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2200-3200 FT AGL INCREASING TO 6500-7500 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTH 9 TO 12 MPH.
SMOKE DISPERSAL.....POOR TO GOOD (21300-63800 KNOT-FT).

.FORECAST DAYS 3 THROUGH 5...
.SATURDAY NIGHT...PARTLY CLOUDY. ISOLATED SHOWERS AND
THUNDERSTORMS IN THE EVENING. LOWS IN THE LOWER 50S. WINDS
GENERALLY LESS THAN 10 MPH.
.SUNDAY...PARTLY CLOUDY. LOWS IN THE UPPER 40S. HIGHS IN THE
UPPER 60S. WINDS GENERALLY LESS THAN 10 MPH.
.MONDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 60S.
WINDS GENERALLY LESS THAN 10 MPH.
.TUESDAY...MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE
LOWER 70S. WINDS GENERALLY LESS THAN 10 MPH.
.WEDNESDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE MID 70S. WINDS
GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...BERC
REQUESTED BY...BILL MOE
REASON FOR REQUEST...WILDFIRE
.TAG 20100730.BULL_.01/RIW