FNUS75 KRIW 260038
FWSRIW

SPOT FORECAST FOR BULL...USFS BTF
NATIONAL WEATHER SERVICE RIVERTON WY
638 PM MDT SUN JUL 25 2010

FORECAST IS BASED ON REQUEST TIME OF 1800 MDT ON JULY 25.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...A DRY AND STABLE AIR MASS WILL REMAIN OVER THE AREA TONIGHT.
MONSOONAL MOISTURE WILL SURGE NORTHWARD MONDAY WITH THE BULK OF THIS
MOISTURE AND INSTABILITY REMAINING TO THE WEST OVER IDAHO...
TEMPERATURES WILL TREND SLIGHTLY COOLER AND RELATIVE HUMIDITY SLIGHTLY
HIGHER MONDAY WITH INCREASING CLOUD COVER. THE MONSOONAL PLUME OF MOISTURE WILL
SHIFT FURTHER EAST MONDAY NIGHT THROUGH WEDNESDAY WITH ISOLATED
THUNDERSTORMS POSSIBLE OVERNIGHT MONDAY...BLOSSOMING INTO SCATTERED
THUNDERSTORMS DURING THE HEAT OF THE DAY TUESDAY AND WEDNESDAY WITH
BETTER CHANCES OF WETTING RAINS.

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

FORECASTER...LIPSON

.TONIGHT...
SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT).
MIN TEMPERATURE.....50.
MAX HUMIDITY........53-56 PERCENT.
WIND (20 FT)........LIGHT AND VARIABLE 3 TO 5 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 15 MPH SHIFTING TO THE
                    NORTHEAST AFTER MIDNIGHT.
LAL.................1.
CWR.................ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......6000-7000 FT AGL DECREASING TO 2600 FT AGL
                    AFTER MIDNIGHT.
TRANSPORT WINDS.....NORTHWEST 17 TO 20 MPH SHIFTING TO THE
                    NORTHEAST AROUND 16 MPH AFTER MIDNIGHT.
SMOKE DISPERSAL.....VERY GOOD (104500 KNOT-FT) DECREASING TO POOR
                    (33800 KNOT-FT) AFTER MIDNIGHT.

.MONDAY...
SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT) THEN BECOMING
                    PARTLY CLOUDY (35-45 PERCENT). ISOLATED SHOWERS
                    AND THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....80.
MIN HUMIDITY........31 PERCENT.
WIND (20 FT)........VARIABLE  3 TO 5 MPH BECOMING SOUTHWEST WEST 5-9 MPH
                    WITH GUSTS UP TO 15 MPH. GUSTY AND ERRATIC WINDS
                    EXPECTED NEAR THUNDERSTORMS IN THE AFTERNOON.
RIDGE TOP WINDS.....EAST AROUND 15 MPH SHIFTING TO THE SOUTHWEST IN
                    THE AFTERNOON.
LAL.................1 UNTIL 1200...THEN 2.
CWR.................LESS THAN 5 PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......4900-5900 FT AGL INCREASING TO 8900-9900 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....EAST 16 TO 17 MPH SHIFTING TO THE SOUTHWEST 15
                    TO 18 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....FAIR (44100 KNOT-FT) INCREASING TO VERY GOOD
                    (109900 KNOT-FT) IN THE AFTERNOON.

.FORECAST DAYS 3 THROUGH 5...
.MONDAY NIGHT...PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS
IN THE EVENING...THEN ISOLATED SHOWERS AFTER MIDNIGHT. LOWS IN
THE LOWER 50S. WINDS GENERALLY LESS THAN 10 MPH.
.TUESDAY...PARTLY CLOUDY WITH SCATTERED SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE LOWER 70S.
WINDS GENERALLY LESS THAN 10 MPH.
.WEDNESDAY...PARTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS AROUND 70. WINDS
GENERALLY LESS THAN 10 MPH.
.THURSDAY...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.
.FRIDAY...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.

$$

FORECASTER...LIPSON
REQUESTED BY...RON STEFFFENS
REASON FOR REQUEST...WILDFIRE
.TAG 20100725.BULL_.01/RIW