Atmokinesis

 Also known as weather manipulation is one of the most powerful abilities in existence where one can control and manipulate the various forms and aspects of the weather itself.

 It can be used to cause massive damage or do many great things depending of the intentions of the user, the full potential of these powers remain unknown as none of the gods or titans seem to hold that much power (except maybe Gaia).

Subdivisions of Atmokinesis
 There are four elemental abilities combined into Atmokinesis which is one of the reassons why it holds such devastating power:  Those who possess one or more of these kinetic abilities will most likely hold the genetic version of it as well. The best example to explain this would be Poseidon, he could use hydrokinesis to gather watermolecules from his surroundings to make it rain, but could also use hydrogenesis to create watermolecules and instantly make it rain. With the element fire, someone with pyrokinetic abilities would be able to control an existing source of fire, while someone who also possesses pyrogenesis can create a fire and control it with the kinetic ability.
 * Hydrokinesis: the ability to control and manipulate water and moisture
 * Thermokinesis: the ability to control an manipulate temperature
 * Cryokinesis: the ability to control and manipulate ice and cold
 * Pyrokinesis: the ability to control and manipulate fire and heat
 * Aerokinesis: the ability to control and manipulate air and wind
 * Electrokinesis: the ability to control and manipulate electricity and lightning

Uses of Atmokinesis
The power this ability holds is simply baffling as it can de used to summon mighty hurricanes, tornadoes and lightning storms or just for whipping up a refreshing breeze on a warm day. It can create rainstorms, monsoons, hail and blizzards. Capable of flooding and destroying whole cities or burying entire continents in meters of snow and ice. What makes it such an awe inspiring ability is that the user can wield three of the four classical elements with one single power, although to balance things out no one seems to possess this ability to its full potential. Only some aspects of it fall under the jurisdiction of the gods e.g.: Poseidon can control water and air to some extent such as creating rainstorms and hurricanes, but holds no power over fire or lightning. The only exception may be the primordial goddess Gaia, she may hold complete and utter dominion over the weather and all of its forms as she is the incarnation of the Earth itself an thus can wield the four elements as well as the weather.

Deities and Nymphs with these abilities
Basically any deity with power over air, water, fire, ice or lightning has some atmokinetic abilities.
 * Aeolus - god of the winds (aerokinesis)
 * Apollo - god of the sun (pyrokinesis)
 * Arke - goddess of the fading rainbow (aerokinesis and hydrokinesis)
 * Aura - Titaness of the breeze (aerokinesis)
 * Aurae - nymphs of the breeze (aerokinesis)
 * Boreas - god of the north wind and winter (aerokinesis and cryokinesis)
 * Briares and his brothers - gods of violent storms (aerokinesis and hydrokinesis)
 * Demeter - goddess of the seasons (aerokinesis and thermokinesis)
 * Eurus - god of the east wind and autumn (aerokinesis)
 * Gaia - primordial goddess of the Earth (aerokinesis, hydrokinesis, thermokinesis & electrokinesis?)
 * Harpies - spirits of whirlwinds and storm gusts (aerokinesis)
 * Helios - titan of the sun (pyrokinesis)
 * Hephaestus - god of fire and forges (pyrokinesis)
 * Hera - queen of heaven and goddess of the air and starry constellations (aerokinesis)
 * Herse - goddess of the morning dew (hydrokinesis)
 * Horae - the three goddesses of the seasons (aerokinesis, hydrokinesis and thermokinesis)
 * Hyperion - titan of light and observation (pyrokinesis)
 * Iris - goddess of the rainbow (hydrokinesis and aerokinesis)
 * Nephelae - nymphs of the clouds (hydrokinesis and aerokinesis)
 * Nephele - goddess of the clouds (hydrokinesis and aerokinesis)
 * Nereids and Nerites - 50 daughters and the only son of Nereus and Doris (hydrokinesis)
 * Nereus - old man of the sea and god of the sea's rich bounty of fish (hydrokinesis)
 * Notus - god of the south wind and summer (aerokinesis and pyrokinesis)
 * Oceanids - 3000 daughters and 3000 sons of Oceanus and Tethys (hydrokinesis, some possess aerokinesis and some possess both)
 * Oreithyia - goddess of cold, gusty mountain winds (aerokinesis and cryokinesis)
 * Posiedon - god of the sea...and storms(Hydrokinesis & some limited aerokinesis and Atmokinesis)
 * Pandia - goddess of the wide-shining full moon and the all-nourishing dew (hydrokinesis)
 * Selene - Titaness of the moon,... and all-nourishing dew (hydrokinesis)
 * Uranus - primordial god of the sky (aerokinesis and full Atmokinesis as weather happens in the sky)
 * Zephyrus - god of the west wind and spring (aerokinesis)
 * Zeus - god of clouds, rain, thunder and lightning (aerokinesis, electrokinesis & some limited hydrokinesis)

Demigods with these abilities

 * Percy Jackson - son of Poseidon, created his own hurricane (hydrokinesis and some aerokinesis)
 * Thalia and Jason Grace - children of Zeus (aerokinesis, electrokinesis and some limited hydrokinesis)
 * Any child of a deity listed above has at least some sway over the weather