. >> reporter: at san francisco's betsy carmichael school, on the playground to warn parents of tomorrow's districtwide closure. >> this is something that is knew to them. we just told them that we want them to be safe. that there is a storm coming, and everything will be okay. >> reporter: the last time san francisco schools closed in an emergency was on 9/11. parents we talked to around the bay area agreed with the decision. >> it's bad that he's missing his school, because he loves school so much, but i would rather have him safe at home than anywhere else. >> i will be available, but it is a concern for working parents, and they didn't have enough notice perhaps. >> reporter: with school closed, the hope is that students will stay out of the weather, safe at home. >> that's the plan. stay home, and be safe. >> and study. >> and study, right guys? >> yeah. >> reporter: the school building maybe one of the safest places to ride out a storm, but for many of the bay area districts, the safety was for parents and students on their way to sool in the morning and on their way home from school