One of my professors this term promised to write me a recommendation letter for grad school. However, tomorrow is the deadline and her letter is not on the application website. She really liked me, so it's probably a case of her forgetting about/misremembering the deadline.
However, I can't reach her via e-mail, and she's the kind of person who puts absolutely no information online (phone, travel plans, etc). Perhaps she's on some sort of trip to a conference or something.
What can I do (with respect to the graduate programs I have applied to) to resolve this? Is there usually some sort of university policy regarding this situation? I really don't want to be unable to apply for grad school because a professor forgot to check her e-mail.
This situation is different from What can I do if a professor agreed to write a recommendation letter, but never sent it?, because in my situation the deadline has not yet passed.