Survivors, a Novel of the Coming Collapse by James Wesley, Rawles, editor of Survivalblog.
Hardcover
Kindle
audio edition
"Survivors" runs concurrently with "Patriots." You need not read "Patriots" first, though of course, I would always encourage buying more books.
These books are narrative training scenarios--How to guides written as fiction. They do have a story, but the reason to read them is for the information they impart and the consideration they provoke. It's much easier to remember a story than dry facts in a list.
Order or buy Tuesday, and you'll get to hear the pollyannae scream as a nice bonus.