New post on http://twitter.com/caltransdist3 : We're starting to see a few snow flurries on I-80 traffic cameras. If you're not already in the Sierra, we advise you to postpone travel until Friday. NWSSacramento is estimating 1-3 inches of snow/hour with potential whiteout conditions making travel difficult! http://pic.twitter.com/pGLn3EvHTb