Remember, this area is relatively remote (certainly in terms of mountain rescue). Be paranoid about avalanches.
Wind – pleasantness
Wind – windslab
Snowfall (rain equivalence)
Recent temperature fluctuations
Windslab and snowfall
Slope above route
Navigating (maps etc)
Are snowshoes needed?
Time it gets light
Time it gets dark
Can the drive and/or walk-in to be done in the dark?
Have you told someone where you are going?
Do you have comms (mobile phone or other)?