Does Storm recent Omega status (especially, the way its been defined now) put her weather manipulationb abilities above Mjölnir.Omega Level Mutant: A mutant whose dominant power is deemed to register -- or reach -- an undefinable upper limit of that power's specific classification.
For Example: Both Magneto and Forge are the most powerful mutants of their power types on the planet Earth [Magnetism and Technopathy, respectively], but what Makes Magneto, and not Forge, an Omega level mutant is that the upper limit of Forge's measurable powers could hypothetically be surpassed [and, in fact, has by multiple humans on the planet], while the upper limit of Magneto's power cannot be surpassed in any measurable fashion.
Note: I'm NOT saying Thor as his weather powers have not been fully explored without using Mjölnir.