FNUS75 KMSO 101719
FWSMSO

SPOT FORECAST FOR ISLAND SOUTH 16
NATIONAL WEATHER SERVICE MISSOULA MT
1119 AM MDT FRI MAY 10 2013

FORECAST IS BASED ON IGNITION TIME OF 1500 MDT ON MAY 10.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...HIGH PRESSURE CONTINUES TO REMAIN OVER WESTERN
MONTANA TODAY, WITH AN EASTERLY GRADIENT KEEPING WINDS OUT OF THE EAST
FOR MOST OF THE DAY. CUMULUS WILL GROW THROUGHOUT THE AFTERNOON,
BUT THEY ARE NOT EXPECTED TO DEVELOP INTO THUNDERSTORMS. EXPECT THE
CHANCE FOR THUNDERSTORMS TO INCREASE OVERNIGHT TONIGHT, WITH THE
THREAT FOR STORMS CONTINUING ON SATURDAY.

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY...BECOMING PARTLY CLOUDY
                    THROUGH THE EVENING.
MAX TEMPERATURE.....66-70.
MIN HUMIDITY........28-35 PERCENT.
WIND (20 FT)........EAST-NORTHEAST 6-10 MPH. PERIODIC GUSTS
                    TO 20 MPH THROUGH THE AFTERNOON.
MIXING HEIGHT.......3800 FT AGL.
MIXING WINDS........EAST 15 MPH.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS
                    AND THUNDERSTORMS AFTER MIDNIGHT.
CWR.................20 PERCENT.
MIN TEMPERATURE.....39-47.
MAX HUMIDITY........66-70 PERCENT.
WIND (20 FT)........NORTH 6-9 MPH.

.SATURDAY...

SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
                    THUNDERSTORMS IN THE MORNING...THEN SLIGHT
                    CHANCE OF RAIN SHOWERS AND THUNDERSTORMS IN THE
                    AFTERNOON.
CWR.................20 PERCENT.
MAX TEMPERATURE.....71-76.
MIN HUMIDITY........27-33 PERCENT.
WIND (20 FT)........SOUTH 5-6 MPH IN THE AFTERNOON.

$$
FORECASTER...ALLEGRETTO
REQUESTED BY...KEITH VANBROEKE
TYPE OF REQUEST...PRESCRIBED
.TAG 20130510.ISLAN.01/MSO