5-10" of relatively dense new snow is forecasted for Monday, with potential for even higher snow totals in the Swan Range.  Southest winds will be gusting into the 50's,  making fresh storm slabs larger and more sensitive in wind affected terrain.   Monitor how well the new snow is bonding to older surfaces and avoid windloaded slopes.  

Intense wind loading on Monday followed by rain on snow later in the week will be adding weight to a crust/facet layer that is lurking near the ground on some high elevation, northerly aspects (see this observation).  Avalanches will have potential to fail on these layers, releasing a surprisingly large persistent slab up to 3 or 4 feet thick.  You can reduce your risk to this dangerous problem by traveling on lower angled terrain  during this rapid loading event.  

Freezing levels will rise to over 8,000 feet by Wednesday morning, and more than an inch of rainfall by Thanksgiving day will be saturating the upper snowpack.  Expect wet loose avalanches to run naturally out of steep terrain as temperatures warm over the next few days. These could become large enough to injure or bury you, so be mindful of your overhead hazards.