valley's great brands and i'm sure that ma ris ra's leadership, intelligence, and passion will guide them to a bright future." we have several interviews with marissa mayer on our website. check them out on our website. logon to nbcbayarea.com and search marissa mayer. >>> as scott mcgrew likes to say, she has geek cred. i like that. very cool. >>> if you're taking a flight today out of sfo, call ahead. some thick fog out there causing major delays. nbc bay area's christie smith is live in san francisco international airport. and she has all the details that travelers would need if they're planning on taking off. good morning, christie. >> reporter: good morning to you, jon. we're seeing people sitting around reading, some of them sleeping and telling us they even spent the night here. the real delays started about 8:00 this morning. we're entering the busiest time of day here between 10:00 and 2:00, and even though we're seeing the sun start to come out a little bit, i just checked inside and delays are still running 30 minutes to three hours. the signs are not encouraging at san francisco international airport this morning. cancellations, delays.