FNUS75 KTFX 291932
FWSTFX

SPOT FORECAST FOR ELBOW PASS COMPLEX...USFS
NATIONAL WEATHER SERVICE GREAT FALLS MT
132 PM MDT SAT SEP 29 2012

FORECAST IS BASED ON REQUEST TIME OF 1258 MDT ON SEPTEMBER 29.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
A LEE SIDE TROUGH OF LOW PRESSURE WILL MOVE EAST AWAY FROM THE AREA
TONIGHT. A TIGHT PRESSURE GRADIENT WILL RESULT IN BREEZY CONDITIONS
OVERNIGHT. WINDS WILL INHIBIT INVERSION DEVELOPMENT IN SOME OF THE
VALLEYS TONIGHT...HOWEVER...STILL EXPECT INVERSIONS TO FORM IN DEEP
PROTECTED VALLEYS. LIGHTER WINDS AND SOMEWHAT COOLER TEMPERATURES ON
SUNDAY WILL RESULT IN SLIGHTLY HIGHER HUMIDITY.

.EXTENDED DISCUSSION...
WINDS COULD BE STRONG ON MONDAY WITH A FRONTAL PASSAGE EXPECTED ON
TUESDAY. SIGNIFICANTLY COLDER TEMPERATURES AND MOUNTAIN SNOW IS
EXPECTED TUESDAY NIGHT THROUGH WEDNESDAY. LANGLIEB

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
CWR.................0 PERCENT.
MIN TEMPERATURE.....36-41 LOWER ELEVATIONS...45-50 HIGHER ELEVATIONS.
MAX HUMIDITY........81-87 PERCENT LOWER ELEVATIONS...65-75 PERCENT
                    HIGHER ELEVATIONS.
WIND (20 FT)........WEST WINDS 5 TO 15 MPH.
RIDGE TOP WIND......WEST WINDS 20 TO 25 MPH.
MIXING HEIGHT.......500 FT AGL.
MIXING WINDS........WEST AROUND 15 MPH.
LAL.................1
HAINES..............2 VERY LOW
INVERSION...........SHELTERED VALLEYS AFTER MIDNIGHT.

.SUNDAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....60-65 LOWER ELEVATIONS...50-55 HIGHER ELEVATIONS.
MIN HUMIDITY........25-35 PERCENT.
WIND (20 FT)........WEST WINDS 5 TO 10 MPH.
RIDGE TOP WIND......WEST WINDS 10 TO 15 MPH.
MIXING HEIGHT.......5500 FT AGL.
MIXING WINDS........WEST AROUND 5 MPH.
LAL.................1
HAINES..............3 VERY LOW
INVERSION...........SHELTERED VALLEYS...LIFTING AFTER 1000 MDT.

$$
FORECASTER...LANGLIEB
REQUESTED BY...GREAT FALLS DISPATCH
TYPE OF REQUEST...WILDFIRE
.TAG 20120929.ELBOW.02/TFX