102  
FXUS65 KMSO 290922  
AFDMSO  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE MISSOULA MT  
322 AM MDT MON MAY 29 2017  
   
DISCUSSION
 
 
THE NORTHERN ROCKIES WILL CONTINUE TO HAVE WARMER THAN NORMAL  
TEMPERATURES AS HIGH PRESSURE MOVES OVER THE REGION. MOSTLY DRY  
CONDITIONS WILL PERSIST, WITH THE EXCEPTION OF A FEW SCATTERED  
SHOWERS AND THUNDERSTORMS OVER THE HIGH TERRAIN IN THE AFTERNOONS.  
AS OF THE CURRENT FORECAST, IT APPEARS TUESDAY WILL BE ONE OF THE  
HOTTEST DAYS OF THE YEAR THUS FAR.  
 
ON WEDNESDAY, THE HIGH PRESSURE RIDGE WILL BEGIN TO BREAK DOWN  
AND MOVE EAST WITH A SOUTHWESTERLY FLOW TAKING OVER. AN EMBEDDED  
DISTURBANCE IN THIS FLOW WILL SET OFF SCATTERED SHOWERS AND  
THUNDERSTORMS DURING THE AFTERNOON AND EVENING. THE LOWER PART OF  
THE ATMOSPHERE WILL INITIALLY BE QUITE DRY, SO RAINFALL AMOUNTS  
WILL BE LIMITED BUT STRONG, GUSTY WINDS WILL BE POSSIBLE WITH  
STRONGER SHOWERS AND STORMS. ADDITIONAL DISTURBANCES AND  
INCREASING MOISTURE LEVELS WILL LEAD TO MORE WIDESPREAD SHOWERS  
AND THUNDERSTORMS WEDNESDAY NIGHT INTO THURSDAY WITH WETTING RAINS  
POSSIBLE.  
 
BEYOND THURSDAY, FORECAST MODELS DIFFER CONSIDERABLY ON THE FINER  
DETAILS BUT GENERALLY SUPPORT AN UNSETTLED AND SLIGHTLY COOLER  
WEATHER PATTERN INTO EARLY NEXT WEEK. MOST LIKELY, A SCATTERING OF  
SHOWERS AND THUNDERSTORMS FROM TIME TO TIME WITH SEASONABLE TO  
SLIGHTLY ABOVE NORMAL TEMPERATURES EXPECTED.  
 
AREA RIVERS AND STREAMS WILL CONTINUE TO RUN HIGH AND FAST THIS  
WEEK. USE CAUTION WHEN VENTURING NEAR SWIFT MOVING WATER, WATER  
TEMPERATURES REMAIN QUITE COLD.  
 

 
   
AVIATION
 
WARM AND FAIR CONDITIONS ARE EXPECTED TODAY. THE  
EXCEPTION WILL BE A FEW AFTERNOON SCATTERED SHOWERS AND  
THUNDERSTORMS MAY DEVELOP ONCE AGAIN OVER THE HIGH TERRAIN AND  
CONTINENTAL DIVIDE, BUT THESE SHOWERS ARE NOT EXPECTED TO CAUSE  
MUCH OF AN IMPACT TO TAF SITES AND WILL CEASE AROUND SUNSET.  
 

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

 
 

 
 
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