You would definitely need snow shoes, crampon, ice ax and microspikes because there is a variety of conditions. The snow is mostly soft by mid day. But freezing temperatures over night and in higher elevations makes for very icy conditions in the morning, near the peak and in the shaded areas.
Always be careful when hiking in the snow because it can seriously hurt you.
The Vivian Creek Trailhead has a almost a foot of snow still and currently the parking lot road is closed.