Hi all, I really need advice from you. Im from Ireland and myself and 5 friends are flying into San Fran in late November (this year). We are then hiring are car and hitting the open road. We know for definite that we want to visit: Lake Tahoe, Yosemite (if it is possible- I have been warned that it might be too dangerous with snow!), Las Vegas, Palm Springs, San Diego. Any suggestions on our trip- will it be safe at that time of the year and what will the weather be like? We are new to this so any type of advice would be really helpful! Thank you!