Don't rely on landlines, either. When hurricane Ike decimated Houston the landlines that weren't taken out by trees were commandeered by emergency services. We didn't have phone service of any type (cell or landline) for ten days and even texts took up to 24 hours to be sent.
-Blast
Was the Internet working for anybody? Cable or satellite?
I wondered about this today too. When a disaster happens, the phone lines get jammed with people calling to check in. Sending emails seems like it should be another option if you have the ability. I suppose though, that internet speeds could be crashed too, if there's too much demand. That used to happen with us with another carrier right after the dinner hour EVERY night, no special circumstances to increase the demand.