mmm this week is looking promising.  some serious cold temps coming into the sierra's at night.  mid to low 20s.  they can make snow at 38 degrees as long as the humidity is low, but realistically, they won't blow snow until about 30.  the low temps this week are low to high 20's at lake level, so at the higher elevations, there's certainly a chance to blow some snow, it's still going to be in the 60's during the day though, so, not totally sure if it's worth it yet.