158  
FWUS45 KMSO 221104  
SAGMSO  
 
BACKCOUNTRY FORECAST FOR WESTERN MONTANA AND NORTH CENTRAL IDAHO  
NATIONAL WEATHER SERVICE MISSOULA MT  
404 AM MST TUE JAN 22 2019  
 
DISCUSSION: A PRETTY BORING, FEATURELESS DAY IS IN STORE TODAY,  
WEATHER-WISE. THIS WILL CHANGE COME TONIGHT, AS AMPLE MOISTURE  
MOVES IN FROM THE WEST AND BRINGS ANOTHER ROUND OF MODERATE TO  
HEAVY MOUNTAIN SNOWFALL THROUGH THE DAY WEDNESDAY. ACCOMPANYING  
THE MOISTURE WILL BE STRONG UPPER LEVEL FLOW THAT WILL KEEP WINDS  
CRANKING IN THE RIDGETOPS. NORTHWEST MONTANA MOUNTAIN RANGES WILL  
SEE LITTLE IN THE WAY OF SNOW LEVEL FLUCTUATIONS, HOWEVER WEST  
CENTRAL MONTANA AND CENTRAL IDAHO WILL HAVE TO DEAL WITH WAVERING  
SNOW LEVELS AS THEY CREEP INTO THE 4500-5500 FEET RANGE WEDNESDAY  
AFTERNOON AND EVENING. THIS MAY RESULT IN A RAIN/SNOW MIX OR VERY  
WET, HEAVY SNOWFALL FOR MIDSLOPES IN THE BITTERROOTS,  
RATTLESNAKE, AND CLEARWATER MOUNTAINS. A COLD FRONT IS EXPECTED  
WEDNESDAY NIGHT/THURSDAY MORNING, WHICH WILL PUSH SNOW LEVELS BACK  
DOWN TO VALLEY FLOORS.  
 
THURSDAY, EXPECT LIGHT TO MODERATE - BUT STILL VERY PERSISTENT -  
SNOW TO CONTINUE ACROSS THE REGION UNDER MOIST NORTH TO  
NORTHWESTERLY FLOW.  
 

 
ELEVATIONS ABOVE 4,000 FT:  
 
TODAY TONIGHT WED  
CLOUD COVER 75% 90% 95%  
HI/LO TEMPS 21 TO 29 17 TO 24 25 TO 35  
WINDS(MPH) SW 17G43 SW 18G41 W 14G45  
PRECIP CHC 50 100 100  
PRECIP TYPE SNO/SHR SNOW SNOW  
LIQUID AMT 0.05 0.28 0.40  
SNOW RATIO(SLR) 19:1 17:1 17:1  
SNOW AMT(IN) 0-3 4-9 6-10  
 
SNOW LEVEL 500 2000 2500  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab MT Page
The Nexlab ID Page Main Text Page