FNUS75 KMSO 212027
FWSMSO

SPOT FORECAST FOR WET COTTONWOOD 3
NATIONAL WEATHER SERVICE MISSOULA MT
227 PM MDT SAT JUL 21 2012

FORECAST IS BASED ON REQUEST TIME OF 1415 MDT ON JULY 21.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...COLD FRONTAL PASSAGE EXPECTED MONDAY...

.DISCUSSION...THE REST OF TODAY AND THE BEGINNING OF SUNDAY WILL
BE FAIRLY BENIGN UNDER A VERY BRIEF AREA OF HIGH PRESSURE.
SOUTHWESTERLY FLOW WILL INCREASE THROUGH THE DAY ON SUNDAY,
HELPING TO WARM TEMPERATURES AND LOWER RH'S FROM TODAY'S EXPECTED
VALUES. THE ATMOSPHERE WILL BECOME INCREASINGLY UNSTABLE BY SUNDAY
AFTERNOON, WITH THE POTENTIAL FOR THUNDERSTORMS TO DEVELOP AND
CONTINUE THROUGH THE EVENING AND OVERNIGHT HOURS.

JUST AS A HEADS-UP: A COLD FRONT IS EXPECTED TO PASS ON MONDAY
AFTERNOON AND EVENING. CONFIDENCE IS HIGH WITH THIS WEATHER
SCENARIO BEING A WINDY ONE, HOWEVER THERE ARE STILL QUESTIONS ON
THE TIMING. STAY TUNED.


.REST OF TODAY...

HAINES INDEX........2 VERY LOW.
SKY/WEATHER.........SUNNY WITH A FEW FAIR WEATHER CUMULUS
                    DEVELOPING OVER RIDGE TOPS.
MAX TEMPERATURE.....79-85.
MIN HUMIDITY........16-21 PERCENT.
WIND (20 FT)........WEST AROUND 10-13 MPH WITH SOME
                    GUSTS UP TO 20 MPH.

.TONIGHT...

HAINES INDEX........3 VERY LOW.
SKY/WEATHER.........CLEAR.
MIN TEMPERATURE.....53-59.
MAX HUMIDITY........62-69 PERCENT.
WIND (20 FT)........NORTHWEST 7-10 MPH IN THE EVENING BECOMING
                    VARIABLE 3-6 MPH.

.SUNDAY...

HAINES INDEX........3 VERY LOW.
SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
                    THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....82-90.
MIN HUMIDITY........14-21 PERCENT.
WIND (20 FT)........UPSLOPE/UPVALLEY 4-6 MPH. GUSTIER IN
                    AREAS DIRECTLY INFLUENCED BY THUNDERSTORMS.

$$
FORECASTER...ALLEGRETTO
REQUESTED BY...J  CLARK
TYPE OF REQUEST...WILDFIRE
.TAG 20120721.WETCO.01/MSO