FNUS75 KMSO 121642
FWSMSO

SPOT FORECAST FOR MCCARTNEY  GARRISON RX
NATIONAL WEATHER SERVICE MISSOULA MT
1042 AM MDT THU MAY 12 2011

FORECAST IS BASED ON IGNITION TIME OF 1200 MDT ON MAY 12.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...SOUTHWESTERLY FLOW ALOFT WILL ALLOW FOR SOME
MOISTURE INTO OUR REGION TODAY. THIS MOISTURE WILL CAUSE AN
INCREASE IN CLOUD COVER TODAY. THIS AFTERNOON THE ATMOSPHERE
APPEARS TO BECOME UNSTABLE ENOUGH TO SUPPORT A FEW SHOWERS AND
THUNDERSTORMS. THE CONVECTION SHOULD DIMINISH THIS EVENING AFTER
SUNSET. THE RIDGE DOES BUILD BACK INTO THE AREA...BUT THE
ATMOSPHERE DOES BECOME UNSTABLE ONCE AGAIN DURING THE AFTERNOON.
THE SURFACE PRESSURE GRADIENT SHOWS THAT EASTERLY WINDS WILL
DEVELOP ON FRIDAY.

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING MOSTLY CLOUDY.
                    SLIGHT CHANCE OF RAIN SHOWERS AND THUNDERSTORMS
                    IN THE AFTERNOON.
CWR.................10 PERCENT.
MAX TEMPERATURE.....61-66.
MIN HUMIDITY........20-25 PERCENT.
WIND (20 FT)........VARIABLE 2-4 MPH BECOMING SOUTH 5-10
                    MPH IN THE AFTERNOON.
MIXING HEIGHT.......7400 FT AGL.
MIXING WINDS........SOUTHWEST 10 MPH.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
                    SLIGHT CHANCE OF RAIN SHOWERS IN THE EVENING.
CWR.................10 PERCENT.
MIN TEMPERATURE.....38-43.
MAX HUMIDITY........64-69 PERCENT.
WIND (20 FT)........SOUTH WINDS AROUND 5 MPH BECOMING VARIABLE
                    2-4 MPH AFTER MIDNIGHT.
MIXING HEIGHT.......200 FT AGL.
MIXING WINDS........NORTHWEST 5 MPH.

.FRIDAY...

SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS
                    AND THUNDERSTORMS IN THE AFTERNOON.
CWR.................10 PERCENT.
MAX TEMPERATURE.....63-68.
MIN HUMIDITY........18-23 PERCENT.
WIND (20 FT)........VARIABLE 2-4 MPH BECOMING EAST 5-10 MPH
                    IN THE AFTERNOON.
MIXING HEIGHT.......6900 FT AGL.
MIXING WINDS........SOUTHWEST 5 MPH.

$$
FORECASTER...SMITH
REQUESTED BY...DOUG
TYPE OF REQUEST...PRESCRIBED
.TAG 20110512.MCCAR.01/MSO