Full Idea
Just as nomological possibility is a special kind of metaphysical possibility, so metaphysical possibility is a special kind of logical possibility.
Clarification
'Nomological' modality (involving laws) is here referred to as 'natural' modality
Gist of Idea
Logical possibility contains metaphysical possibility, which contains nomological possibility
Source
Nathan Salmon (The Logic of What Might Have Been [1989], III)
Book Reference
Salmon,Nathan: 'Metaphysics, Mathematics and Meaning' [OUP 2005], p.137
A Reaction
This is the standard view of how the three types of necessity are nested. He gives a possible counterexample in footnote 7.