Like many of her ancestors, including the Hyborian Age's own sorceress Ayesa, the Rain Queen of Balobedu, Ororo was born with the potential to wield powerful magic.

Source: https://www.cbr.com/x-men-storm-upgrade-goddess-nickname/

Ororo can summon whirlwinds, blizzards, and hurricances, yet this is only a fraction of her true power.

Source: https://screenrant.com/20-most-powerful-x-force-members-deadliest-mutants/

There are truly few foes who can withstand an onslaught from an unleashed Ororo, and Iron Man really isn’t one of them.

Source: https://screenrant.com/iron-man-vs-storm-stronger-marvel-hero-avenger/