135  
AWUS85 KTFX 122241  
RWSMT  
 
MONTANA WEATHER SUMMARY  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
340 PM MST TUE DEC 12 2017  
 
TODAY...A DISTURBANCE SPREAD MID AND HIGH CLOUDINESS FROM NORTHWEST  
TO SOUTHEAST ACROSS MONTANA AND GUSTY WESTERLY DOWNSLOPE WINDS EAST  
OF THE ROCKIES. WINDS WERE ESPECIALLY STRONG ALONG THE EAST SLOPES  
OF THE ROCKIES, WHERE GUSTS OF 35 TO 45 MPH WERE COMMON. SOME  
LOCATIONS CLOSER TO THE ROCKY MOUNTAIN FRONT HAD GUSTS BETWEEN 55  
AND 70 MPH. MANY LOCATIONS EAST OF THE ROCKIES ALSO HAD AFTERNOON  
HUMIDITY THAT FELL BELOW 20 PERCENT, CAUSING INCREASED FIRE DANGER.  
IT WAS A DIFFERENT STORY ALONG AND WEST OF THE CONTINENTAL DIVIDE,  
WHERE LIGHTER WINDS AND VALLEY TEMPERATURE INVERSIONS CONTINUED  
AREAS OF LOW CLOUDS AND FOG.  
 
AT 3 PM MST...TEMPERATURES HAD MOSTLY WARMED INTO THE MID 40S AND  
50S EAST OF THE ROCKIES, WHILE WESTERN MOUNTAIN AREAS REMAINED IN  
THE 20S AND 30S. THE WARMEST LOCATION WAS FORSYTH AT 63 DEGREES,  
WHILE THE COOL SPOT WAS MISSOULA AT 19 DEGREES.  
 
OVERNIGHT...THE PASSING DISTURBANCE WILL BRING A GOOD CHANCE OF  
LIGHT SNOW TO MUCH OF WESTERN AND SOUTHWEST MONTANA WITH LINGERING  
LOW CLOUDS AND FOG IN THE VALLEYS. BREEZY, BUT DECREASING, WESTERLY  
WINDS WILL KEEP THE PLAINS DRY WITH DECREASING CLOUDINESS. MOST OF  
THE VALLEYS WILL HAVE LOWS IN THE SINGLE DIGITS AND TEENS, BUT  
PLAINS AND MOUNTAIN TOPS WILL ONLY FALL INTO THE 20S TO MID 30S.  
 

 
 
WEATHER.GOV/GREATFALLS  
 
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