Where Can Reality Storms Happen?

A reality storm, as described here:

requires the coexistence of "space and time and myth" and/or of "conflicting realities";

temporarily relocates people from different times and places to the Worlds' End Inn.

This kind of storm is impossible in Poul Anderson's Time Patrol universe because, in that universe:

myths are not real;

conflicting realities do not coexist but succeed each other;

spatiotemporal displacement occurs only through the mechanism of a vehicle like a time shuttle or timecycle;

there is no inn at the end of the world.

This universe does include unstable space-time zones within which a time traveler might encounter or inadvertently cause a causality violation. Such zones are this universe's closest approach to a reality storm.

By contrast, in the Old Phoenix multiverse:

that which is a myth in one universe is sometimes a reality in another universe;

alternative versions of reality do coexist;

in some universes, magical events can include mysterious disappearances and reappearances, e.g., Holger Danske;

some conflicts are transcosmic;

there is an inn between the universes.

Thus, most of the conditions for a reality storm are in place.