I noticed today, much to my delight, that Accuweather has a storm coming at the far end of their 15 day forecast.
http://www.accuweather.com/us/ca/south-lake-tahoe/96150/forecast-15day.asp?partner=17868&myadc=0&traveler=1&metric=0
myforecast.com is the most optimistic of all with snow starting...