Snow in Frisco?

For the first tim in a long time, San Francisco is expecting snow. A snow storm. They have not had snow since 1976, when I was 5. The reason I am watching San Francisco? That is the airport through which we are flying on our way to Beijing on Wednesday. I have, of course, been watching the weather for Denver for next week (looks fine for a very early drive to the airport)but it did not occur to me that San Francisco may be shut down for snow. If it's not one thing, it's another. God is good, memsahib.