685  
FXUS65 KMSO 081057  
AFDMSO  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE MISSOULA MT  
357 AM MST SAT NOV 8 2025  
   
DISCUSSION  
 
KEY MESSAGES:  
 
- LOW STRATUS AND PATCHY FOG THIS WEEKEND  
 
- INCREASED WINDS AND ISOLATED SHOWERS ACROSS NORTHWEST MONTANA  
MONDAY INTO TUESDAY  
 
- RIDGE OF HIGH PRESSURE WEDNESDAY INTO FRIDAY  
 
A RIDGE OF HIGH PRESSURE WILL BE BUILDING OVER THE REGION THIS  
WEEKEND CAUSING STABLE CONDITIONS AND VALLEY INVERSIONS. LOW  
STRATUS AND PATCHY FOG IS ANTICIPATED TO BECOME MORE PREVALENT  
EACH MORNING.  
 
A WEAK DISTURBANCE IS EXPECTED TO MOVE THROUGH THE NORTHERN  
ROCKIES MONDAY INTO TUESDAY. THIS FEATURE WILL CAUSING AN INCREASE  
IN UPPER LEVEL WINDS CREATING GUSTY CONDITIONS IN THE HIGHER  
TERRAIN ACROSS NORTHWEST MONTANA. MOISTURE APPEARS TO BE FAIRLY  
LIMITED WITH THIS FEATURE SO SHOWER ACTIVITY SHOULD BE LIGHT AND  
MAINLY CONFINED TO NORTHWEST MONTANA.  
 
THE RIDGE OF HIGH PRESSURE REBOUNDS BY MID WEEK AND LASTS THROUGH  
THE REMAINDER OF THE WORK WEEK. ONCE AGAIN STRONG INVERSIONS WILL  
REDEVELOP BRINGING THE POTENTIAL FOR LOW STRATUS AND FOG. THE  
MAJORITY OF THE MODELS (~70%) ARE TRENDING TOWARDS A TROUGH OF LOW  
PRESSURE IMPACTING THE REGION THIS WEEKEND.  
 
 
   
AVIATION  
MID LEVEL STRATUS DECK HAS DEVELOPED ACROSS PORTIONS  
OF WESTERN MONTANA. THIS CLOUD DECK HAS LIMITED THE DEVELOPMENT OF  
FOG ACROSS THE REGION THIS MORNING. KGPI APPEARS TO HAVE BECOME  
FAIRLY CLEAR THIS MORNING, SO PATCHY FOG COULD IMPACT THE TERMINAL  
THROUGH MID MORNING. THE WINDS ARE EXPECTED TO BE SIGNIFICANTLY  
LIGHTER COMPARED TO PREVIOUS DAYS.  
 
 
   
MSO WATCHES/WARNINGS/ADVISORIES  
 
MT...NONE.  
ID...NONE.  
 
 
 
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