You can get to work, but the weather forecast is pretty bad and it is doubtful you will be able to get home, even if you leave early.
Say you start at 0630, with heavy snow forecast for 0600 till mid afternoon. Public transport is likely to be stopped and you don't live within walking distance.
So, do you go in? Leave early? Throw a sickie? Trust to the common sense and good nature of your manager?