FNUS75 KMSO 031552
FWSMSO

SPOT FORECAST FOR BLACKTAIL RIDGE
NATIONAL WEATHER SERVICE MISSOULA MT
952 AM MDT MON SEP 3 2012

FORECAST IS BASED ON REQUEST TIME OF 0910 MDT ON SEPTEMBER 03.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...AN APPROACHING UPPER LEVEL WAVE WILL HELP INCREASE
WINDS THIS AFTERNOON AND EVENING FROM THE WEST. GIVEN THE DRAINAGE
IN THE BASE OF CANYON IS MORE SOUTHWEST...THE LOWER END OF THE
FIRE MAY SEE MORE OF A SOUTHWEST DIRECTION. GUSTS TO 20 MPH ARE
POSSIBLE ON THE TOP OF THE FIRE...BUT LESS LIKELY AT THE BASE. AS
THE UPPER WAVES PASSES OVER THE FIRE TONIGHT CLOUDS WILL INCREASE
WITH WINDS BECOMING MORE NORTHWEST. THE UPPER WAVE WILL EXIT EAST
OF THE FIRE EARLY TUESDAY MORNING WITH CLOUDS QUICKLY DISSIPATING
BEHIND. THE CLOUD MAY INHIBIT STRONG INVERSIONS FROM FORMING
TONIGHT, BUT LIGHT WINDS, AT THE SURFACE AND ALOFT, TUESDAY AND LOW
HAINES SHOULD KEEP THE FIRE FROM BEING VERY ACTIVE. SMOKING OUT
THE VALLEY DOWNSTREAM WILL BE AN ISSUE.

.TODAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....75-80.
MIN HUMIDITY........13-18 PERCENT.
WIND (20 FT)........UPSLOPE/UPVALLEY 2-5 MPH. BOTTOM...SOUTHWEST
                    5-10 MPH AFTER 1400 MDT. TOP...WEST 8-12 MPH
                    WITH GUSTS TO 20 MPH IN THE AFTERNOON.
HAINES INDEX........2 VERY LOW.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY.
CWR.................0 PERCENT.
MIN TEMPERATURE.....43-48.
MAX HUMIDITY........58-63 PERCENT.
WIND (20 FT)........BOTTOM...SOUTHWEST WINDS 5-10 MPH DECREASING TO
                    AROUND 5 MPH AFTER SUNSET.
                    WEST WINDS 10-15 MPH IN THE EVENING BECOMING
                    NORTHWEST 5-10 MPH AFTER MIDNIGHT.
HAINES INDEX........2 VERY LOW.

.TUESDAY...

SKY/WEATHER.........BECOMING SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....75-80.
MIN HUMIDITY........18-23 PERCENT.
WIND (20 FT)........BOTTOM...UPSLOPE 3-5 MPH. TOP...NORTHWEST 5-10 MPH
                    BECOMING WEST IN THE AFTERNOON.
HAINES INDEX........2 VERY LOW.

$$
FORECASTER...MEAD
REQUESTED BY...CALVIN MINEMEYER
TYPE OF REQUEST...WILDFIRE
.TAG 20120903.BLACK.01/MSO