FXUS65 KTFX 251813
AFDTFX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREAT FALLS MT
1113 AM MST FRI DEC 25 2009

.UPDATE...
SOME PATCHY FOG HAS PERSISTED OVER NORTH CENTRAL MONTANA. THE
FORECAST HAS BEEN UPDATED TO REFLECT THIS. DB

&&

.AVIATION... 
UPDATED 1745Z.
CIRCULATION AROUND AN UPPER LOW OVER THE MIDWEST WILL KEEP LOW 
CLOUDS AND FOG OVER THE EASTERN PORTION OF THE AREA...INCLUDING KHVR 
AND KLWT WHERE IFR CONDITIONS CONTINUE. CONDITIONS SHOULD IMPROVE TO 
VFR AFTER 21Z. PATCHY FOG IS ALSO POSSIBLE AT KHLN DUE TO THE 
INVERSION THAT PERSISTS THERE. VFR CONDITIONS PREVAIL ELSEWHERE.

&&

.PREV DISCUSSION...
/ISSUED 1045 AM MST FRI DEC 25 2009/
WILL UPDATE FOR ADJUSTING TEMPERATURES ACROSS THE CWA. THE
NORTHEAST HAS BEEN ADJUSTED DOWNWARD WITH THE COLD AIR IN PLACE.
AREAS OF CENTRAL MONTANA HAVE BEEN ADJUSTED UPWARDS. ALSO...A
DISTURBANCE MOVING SOUTHWARD THROUGH CENTRAL AND SOUTHERN MONTANA
IS PRODUCING SOME LIGHT SNOW...SO HAVE ADJUSTED THE POPS OVER
THESE PORTIONS...ESPECIALLY OVER THE MOUNTAINS. OTHERWISE THE
FORECAST IS ON TRACK AND WILL SEE PERIODS OF SUN OVER WESTERN
PORTIONS AND GENERALLY LIGHT WINDS. DB 

&&

.PRELIMINARY POINT TEMPS/POPS...
GTF  27   8  24  12 /   0   0   0   0 
CTB  25   4  26   8 /   0   0   0   0 
HLN  22   5  18   2 /  10   0   0   0 
BZN  22   6  22   1 /  20   0   0   0 
WEY  20   0  21  -2 /  20  10   0   0 
DLN  22   3  22   4 /  10   0   0   0 
HVR   4 -15  11  -8 /   0   0   0   0 
LWT  25   0  23   6 /   0   0   0   0 

&&

.TFX WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

$$

SHORT TERM... 
LONG TERM... 
AVIATION... 

WEATHER.GOV/GREATFALLS