Not sure where you are coming to California from, but we are expecting a weather change this week - has been quite warm, and snow level quite high. The temps dropped dramatically last night, and new storm system moving in starting tomorrow noc through most of the week. That could certainly impact the trail conditions and 'what to expect.' Keep tuned in to the latest weather, and of course this premier source of information on all things Mt. Whitney related.
Good luck, and stay warm!