FNUS75 KMSO 282226
FWSMSO

SPOT FORECAST FOR WEST RIVERSIDE FIRE
NATIONAL WEATHER SERVICE MISSOULA MT
426 PM MDT SUN AUG 28 2011

FORECAST IS BASED ON REQUEST TIME OF 1533 MDT ON AUGUST 28.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...WIND CONDITIONS SHOULD CHANGE VERY LITTLE FROM
CURRENT CONDITIONS THROUGH THE REST OF THIS AFTERNOON AND EVENING
WITH LIGHT FLOW ALOFT. THE NEXT WEATHER SYSTEM IS SLOWLY
MOVING THROUGH OREGON. SOME INSTABILITY AHEAD OF THIS COULD
PRODUCE AN ISOLATED THUNDERSTORM NEAR THE FIRE THIS EVENING BUT
THE MORE LIKELY SCENARIO IS THAT CELLS WILL STAY SOUTH OF THE FIRE
UNTIL THE TROUGH PASSES. THE PASSAGE SHOULD OCCUR MONDAY MORNING
WITH BEST CHANCES FOR SHOWERS AND THUNDERSTORMS BEING BETWEEN 0600
MDT AND 1200 MDT. SPORADIC GUSTY WINDS AND LIGHT RAIN ARE POSSIBLE
WITH ANY STORMS THAT PASS. THUNDERSTORM CHANCES WILL AGAIN OCCUR
MONDAY AFTERNOON WITH INCREASED LOW LEVEL MOISTURE AND THE
PRESENCE OF THE SHORTWAVE. WEST WINDS WILL ALSO INCREASE ABOVE
MOUNTAIN TOP MONDAY AFTERNOON LEADING TO MORE PERSISTENT WIND AT
THE TOP OF THE FIRE THAT WILL MIX THROUGH THE REST OF THE FIRE
IN THE AFTERNOON. WIND WILL DECREASE IN THE EVENING.

.REST OF TODAY...

SKY/WEATHER.........PARTLY CLOUDY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....89-94 BOTTOM...78-83 TOP.
MIN HUMIDITY........13-18 PERCENT BOTTOM...22-27 PERCENT TOP.
WIND (20 FT)........BOTTOM...UPCANYON AROUND 5-7 MPH.
                    TOP...WEST AROUND 7-11 MPH.
MIXING HEIGHT.......7100 FT AGL.
MIXING WINDS........WEST 5 MPH.
HAINES INDEX........3 VERY LOW.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS
                    AND THUNDERSTORMS AFTER MIDNIGHT.
CWR.................10 PERCENT.
MIN TEMPERATURE.....56-61.
MAX HUMIDITY........48-53 PERCENT BOTTOM...40-45 PERCENT TOP.
WIND (20 FT)........NORTH WINDS 5-6 MPH IN THE EVENING BECOMING
                    VARIABLE 2-4 MPH.
MIXING HEIGHT.......600 FT AGL.
MIXING WINDS........SOUTH 5 MPH.
HAINES INDEX........4 LOW.

.MONDAY...

SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS
                    AND THUNDERSTORMS.
CWR.................10 PERCENT.
MAX TEMPERATURE.....84-89 BOTTOM...72-77 TOP.
MIN HUMIDITY........17-22 PERCENT BOTTOM...28-33 PERCENT TOP.
WIND (20 FT)........BOTTOM...UPCANYON 3-5 MPH BECOMING WEST
                    AROUND 10 MPH WITH GUSTS TO 15 MPH IN THE
                    AFTERNOON.
                    TOP...WEST 7-11 MPH INCREASING TO 12-16 MPH
                    WITH GUSTS TO 22 MPH IN THE AFTERNOON.
MIXING HEIGHT.......8300 FT AGL.
MIXING WINDS........WEST 15 MPH.
HAINES INDEX........3 VERY LOW.

$$
FORECASTER...KITSMILLER
REQUESTED BY...MATT BUTLER
TYPE OF REQUEST...WILDFIRE
.TAG 20110828.WESTR.01/MSO