Water will be a huge problem for the first 3 days until FEMA shows up.
In the Northwest, it might rain. But it would be a disaster unlike any except a nuke in a shipping container. Oh, wait...
At which point water, food, fuel, safety, repairs and rebuilding--in short, survival--will ALL become a huge problem.
Because FEMA does not help. They hinder, hamper and harm.
Beans, bullets, Bottles and band-aids.
Batteries, bedding.