Actually, getting the timing right is hard in most serious situations of life due to the continuous, fickle, and capricious nature of events.

Where to go is equally critical: geography plays a major role in strategic relocation. It must be considered and studied whether plans are to stay in place, relocate, or bug out.

Geography causes a lot of uncertainty and confusion among preppers. 

A lot of that comes from dread, which is often fear of the unknown. To make these feelings go away, we just have to learn the unknown.

Once we realize that geography in the context of prepping and survival is basically comparing a defined set of conditions between different locations: our own and potential destinations, those feelings go away.

Unlike timing, geography deals with more material and static conditions. Thus, it's a lot easier to make sense of.

The tricky part is doing informed and objective analyses.