I am currently teaching Alas, Babylon! to my sophomores. The question/hook we opened with was: if you had it from a very reliable source that a nuclear bomb was scheduled to hit tomorrow, would you survive? What precautions would you take in the hours you had before the blast? Who would you tell?
I live very close to a very strategic transportation hub, so it is highly unlikely that I would survive a large scale nuclear attack on the United States. In the event that I knew the US was under attack by my area wasn't targeted my last hours would revolve around preparation. I would make peace with distant relatives I would be unlikely to see, visit the bank to draw out cash as electronic payments would probably be difficult, and purchase as much provisions as I possibly could.
We played a little game. I told them that they had 1-2 days' notice from a reliable source that several bombs would hit. They had access to a small farm with an artesian well (their own water source, uncontaminated) and the farm would be at least 100 miles away from any bomb site. They then had to decide from a list I gave them the people they invite to live with them on the farm. I kept telling them that this was possibly forever--hinting that they need to consider not only expertise, medical problems, and immediate access to money, but gender for future procreation and survival. From there they added up the money immediately available to their chosen personas and went shopping for the supplies they thought they would need to survive the nuclear holocaust. It's quite interesting, and fun to see them upset when they forgot about the possibility of no electricity and their supplies include tons of frozen dinners. :)
Wow. My answer is that, no, I probably would not survive. How can you prepare in such a short time--unless you're a survivalist and have been waiting for this all your life. I would spend my remaining hours with my family in prayer. And I'd make sure we had a really reliable and fast-moving car that could get us as far away from the blast zone as possible!