With the premise that every single Computer turned off.
I guess that we'd have to turn them back on again.
Savage...but so true!

We're done only if that storm never stops, any other case - a lot of distress and angry people who's transaction was unfinished/stuck, and still, you'd have to be really unlucky for that to happen to you
Bitcoin will be the last thing you think of, if all the electricity goes down, imagine value of water over some "money"
A catastrophic phenomenon like that would surely fry the circuit of all electronic devices but if your bitcoin is stored in a PC it may all be gone, But if it stored in a cold storage it can be saved, Well I guess If the storm subsides we can just turn on back again a new desktop and electronic devices will simply work, But we can really not be sure if what's gonna happen if a thing like that really happens and we can don't really have any idea if all electronic device would really fry all circuit, I guess it needs research on something like this.