We've been having one of the worst seasons ever in Tahoe. Everyone is hoping for a "miracle March" to save us now, but it looks like the ridge might be coming back, at least for a while in the first week of March, so I wouldn't hold my breath.
It's also been way too warm all season, so expect to be riding slush the week of the 17th. My last planned trip is March 22-23. Slush can be interesting to ride too :P