Welcome to CA. I live in San Diego county and we just got 2 feet of snow in our mountains. That is a ton of snow for us. If we are lucky we get snow there a couple times a year and usually only 4 or 5 inches. So please bring some warm clothes. Lake Tahoe is probably very beautiful right now (It's always beautiful), but I bet it will be cold. Here the weather can be very crazy. Snow in the mountains one day and beach weather the next. I hope all the storms clear out when you are here and you have a great time with your family.