FNUS75 KRIW 281228
FWSRIW

SPOT FORECAST FOR BULL...IA TDC
NATIONAL WEATHER SERVICE RIVERTON WY
628 AM MDT WED JUL 28 2010

FORECAST IS BASED ON REQUEST TIME OF 1843 MDT ON JULY 27.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

A DISTURBANCE MOVING ACROSS WESTERN WYOMING THIS MORNING COULD
RESULT IN ISOLATED LIGHT SHOWERS AND PERHAPS A RUMBLE OR TWO OF
THUNDER THIS MORNING. MORE ROBUST SCATTERED SHOWERS AND
THUNDERSTORMS ARE EXPECTED TO DEVELOP AFTER 2 PM AND LAST THROUGH
THE EVENING HOURS. WINDS WILL MAINLY BE LIGHT AND TERRAIN DRIVEN
OVER THE NEXT COUPLE OF DAYS...EXCEPT NEAR SHOWERS AND
THUNDERSTORMS WHERE GUSTY AND ERRATIC WINDS CAN BE EXPECTED.

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

FORECASTER...MURRELL

.TODAY...
SKY/WEATHER.........MOSTLY CLOUDY (70 PERCENT)...BECOMING PARTLY
                    CLOUDY (50 PERCENT) BY NOON. ISOLATED SHOWERS
                    AND THUNDERSTORMS IN THE MORNING...THEN
                    SCATTERED THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....74-78.
MIN HUMIDITY........35-40 PERCENT.
WIND (20 FT)........UPSLOPE/UPVALLEY 3-6 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS.
RIDGE TOP WINDS.....SOUTHWEST 5-10 MPH.
LAL.................2 UNTIL 1200...THEN 4.
CWR.................5 PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......2500 FT AGL INCREASING TO 8000 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.
SMOKE DISPERSAL.....POOR TO GOOD (25700-75100 KNOT-FT).

.TONIGHT...
SKY/WEATHER.........MOSTLY CLOUDY (60-70 PERCENT) THEN BECOMING
                    PARTLY CLOUDY (45-55 PERCENT). CHANCE OF
                    SHOWERS AND THUNDERSTORMS IN THE EVENING...THEN
                    SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS
                    AFTER 2100.
MIN TEMPERATURE.....45-50.
MAX HUMIDITY........70-75 PERCENT.
WIND (20 FT)........DOWNSLOPE/DOWNVALLEY 2-4 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS.
RIDGE TOP WINDS.....SOUTHWEST 5 TO 10 MPH.
LAL.................4 UNTIL 2100...THEN 2.
CWR.................5 PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......4300-5300 FT AGL DECREASING TO 800 FT AGL BY
                    MIDNIGHT.
TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
SMOKE DISPERSAL.....POOR TO FAIR (1900-40700 KNOT-FT).

.THURSDAY...
SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT). ISOLATED
                    THUNDERSTORMS.
MAX TEMPERATURE.....AROUND 70.
MIN HUMIDITY........AROUND 35 PERCENT.
WIND (20 FT)........UPSLOPE/UPVALLEY 4-8 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS.
RIDGE TOP WINDS.....WEST 5-10 MPH.
LAL.................2.
CWR.................4 PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......2000 FT AGL...INCREASING TO 7500 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....WEST AROUND 10 MPH.
SMOKE DISPERSAL.....POOR INCREASING TO GOOD (72000 KNOT-FT).

.FORECAST DAYS 3 THROUGH 5...
.THURSDAY NIGHT...PARTLY CLOUDY. ISOLATED SHOWERS AND
THUNDERSTORMS IN THE EVENING...THEN SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS AFTER MIDNIGHT. LOWS IN THE LOWER 50S. WINDS
GENERALLY LESS THAN 10 MPH.
.FRIDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS AROUND 50. HIGHS AROUND 70. WINDS GENERALLY
LESS THAN 10 MPH.
.SATURDAY...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.
.SUNDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE MID 60S. WINDS
GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...MURRELL
REQUESTED BY...RON STEFFFENS
REASON FOR REQUEST...WILDFIRE
.TAG 20100727.BULL_.01/RIW