Storm Sorcery

Storm magic is one of the most common manifestations of sorcery in the Firesea region, perhaps because so much of it lies near a coast, and so much of it sees frequent and powerful storms and other unusual weather. While as yet still uncommon in the scheme of things, it is far from rare for those born during a great tempest or gale to have the energy of the storm crackling within their body and spirit. It also arises from dalliances with a wide variety of supernatural entities, especially naiads and sylphs, the two kinds of nymph most likely to take a mortal lover, at least for a time.
Storm Sorcery is a Sorcerer subclass from XGtE. It functions as printed, except as noted below.

Storm Magic

You know Thunderclap as a bonus cantrip. At certain class levels, you add to your spells known from the list below. Unlike the other spells you know, these bonus spells cannot be retrained. This doesn't impede you from retraining spells you learn normally from leveling up as a sorcerer.
1st / Create / Destroy Water, Thunderwave
3rd / Gust of Wind, Shatter
5th / Call Lightning, Tidal Wave
7th / Control Water, Storm Sphere
9th / Cone of Cold, Maelstrom

Spells Known

You learn spells only from the Sorcerer spell list. However, you may learn wind, water, and weather spells from any spell list.

Tempestuous Magic

You can use this ability with cantrips as well. The distance you can fly with this ability is 10 ft with a cantrip, +5 ft per two spell levels (rounded down) for an actual spell.

Heart of the Storm

The stormy magic described in the ability has a range of 10 ft with a cantrip, +5 ft per two spell levels (rounded down) for an actual spell. It also triggers on wind, water and weather magic, in addition to the listed lightning or thunder magic.