FNUS75 KMSO 231720
FWSMSO

SPOT FORECAST FOR SAND BASIN
NATIONAL WEATHER SERVICE MISSOULA MT
1120 AM MDT SUN AUG 23 2009

FORECAST IS BASED ON INCIDENT TIME OF 1059 MDT ON AUGUST 23.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

SOUTHWESTERLY FLOW ALOFT WILL BE PRESENT DURING THE REST OF TODAY
AND TONIGHT. SCATTERED SHOWERS AND THUNDERSTORMS WILL BE PRESENT
NEAR THE BURN AREA DURING THIS TIME AS A WEAK PACIFIC STORM SYSTEM
MOVES ACROSS THE NORTHERN ROCKIES. RIDGE TOP WINDS SHOULD BE FAIRLY
LIGHT FROM THE SOUTHWEST AND RH VALUES ARE EXPECTED TO REMAIN HIGH
THROUGH EARLY MONDAY AFTERNOON. FLOW WILL BECOME WESTERLY DURING
MONDAY AFTERNOON WITH DECREASING CLOUDINESS BY EARLY EVENING.


.TODAY...

SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SHOWERS AND
                    THUNDERSTORMS.
CWR.................30 PERCENT.
MAX TEMPERATURE.....65-68.
MIN HUMIDITY........50-55 PERCENT.
WIND (20 FT)........VARIABLE 2-5 MPH BECOMING WEST 5-7 MPH IN THE
                    AFTERNOON.
MIXING HEIGHT.......3200 FT AGL.
MIXING WINDS........SOUTHWEST 20 MPH.
HAINES INDEX........3 VERY LOW.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
                    CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
                    EVENING...THEN SLIGHT CHANCE OF SHOWERS AND
                    THUNDERSTORMS AFTER MIDNIGHT.
CWR.................20 PERCENT.
MIN TEMPERATURE.....38-43.
MAX HUMIDITY........95-100 PERCENT.
WIND (20 FT)........WEST WINDS AROUND 6 MPH IN THE EVENING BECOMING
                    VARIABLE 2-4 MPH.
MIXING HEIGHT.......500 FT AGL.
MIXING WINDS........WEST 5 MPH.
HAINES INDEX........2 VERY LOW.

.MONDAY...

SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
                    THUNDERSTORMS.
CWR.................10 PERCENT.
MAX TEMPERATURE.....64-69.
MIN HUMIDITY........31-36 PERCENT.
WIND (20 FT)........VARIABLE 2-4 MPH BECOMING WEST 5-6 MPH IN THE
                    AFTERNOON.
MIXING HEIGHT.......5000 FT AGL.
MIXING WINDS........WEST 10 MPH.
HAINES INDEX........3 VERY LOW.

$$
FORECASTER...ZUMPFE
REQUESTED BY...DOUG CAFFEE
TYPE OF REQUEST...WFU
.TAG 20090823.SANDB.01/MSO