132  
FXUS65 KMSO 132007  
AFDMSO  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE MISSOULA MT  
207 PM MDT MON AUG 13 2018  
   
DISCUSSION
 
SMOKE IS MOVING INTO IDAHO AND WESTERN MONTANA FROM  
WASHINGTON AND BRITISH COLUMBIA, AS SEEN ON TODAY'S SATELLITE  
LOOPS. WILDFIRES IN NORTHWEST MONTANA ARE ALSO ADDING TO THE  
SMOKE, SO DECREASED AIR QUALITY IS BEING OBSERVED IN LIBBY,  
KALISPELL, AND VICINITY. HAZE MAY START TO INCREASE IN THE REST  
OF NORTH-CENTRAL IDAHO AND WESTERN MONTANA, BUT MOST OF THE SMOKE  
REMAINS ALOFT SO FAR.  
 
HIGH PRESSURE SLOWLY BUILDS INTO THE REGION ON TUESDAY, LEADING  
TO HIGH TEMPERATURES JUST ABOVE AVERAGE. THE SLOW WARMING TREND  
CONTINUES FOR WEDNESDAY AND THURSDAY. MOISTURE BEGINS TO INCREASE  
ON WEDNESDAY AND THURSDAY, WHICH MAY BE SUFFICIENT FOR A FEW STRAY  
THUNDERSTORMS.  
 
MONSOON MOISTURE AND THE POTENTIAL FOR A WEATHER DISTURBANCE ON  
FRIDAY LEND TO INCREASED THUNDERSTORM CHANCES FOR MUCH OF NORTH-  
CENTRAL IDAHO AND WESTERN MONTANA. ADDITIONAL DISTURBANCES MAY  
ALSO PROVIDE THUNDERSTORM CHANCES DURING THE WEEKEND, BUT DETAILS  
ARE LIMITED AT THIS TIME.  
 

 
   
AVIATION
 
ONCE AGAIN, WILDFIRE SMOKE WILL CAUSE HAZY SKIES  
ACROSS THE NORTHERN ROCKIES FOR THE NEXT 24 HOURS. THE THICKEST  
SMOKE WILL REMAIN ACROSS NORTHWEST MONTANA, WHERE VISIBILITY WILL  
VARY BETWEEN 4SM TO 6SM AS A RESULT. LIGHT EASTERLY-TO-  
NORTHEASTERLY WINDS WILL BE PREVALENT AT ALL AVIATION SITES  
THROUGH TUESDAY.  
 

 
   
MSO WATCHES/WARNINGS/ADVISORIES
 
 
MT...NONE.  
ID...NONE.  

 
 

 
 
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