Ororo is a potential omega level mutant .
Atmokinesis: Several times in the past, Storm has been described as a "sculptress". This is (arguably) the best way to describe her mutant mastery over weather, and certain forms of energy. When Storm uses her psionic powers, she sees the world as colorful, constantly changing energy patterns, rather than solid matter. These energy patterns can be "molded" to Storm's will to create a vast number of effects which mainly deal with weather manipulation. Storm is greatly in tune with nature and the elements. She can feel them, and likewise they react to her emotional state. She can manipulate weather patterns on a variety of scales, including the ability to summon large and violent thunderstorms and blizzards, as well as sleet and hail. Storm can also use the weather as a weapon. She can summon lightning bolts from the sky that can be used to blind, stun, or severely burn her opponents even to the point of death. She can also use this ability as a concussive force. Even strong enough to affect the Silver Surfer.
Flight: She has the ability to fly by gliding on wind currents. She can also move objects or other people with the wind or create a dome of air pressure to deflect attacks. Storm's power over air pressure has also been used to crush powerful objects such as skrull warships. She has even created pressure (on earth) higher than that found on Jupiter. Storm's powers grant her the ability to fly as high as the atmosphere can be stretched by using her mastery over wind. She can even carry other people with her.
Energy Manipulation: When using her powers, Storm becomes one with the energy patterns she manipulates. This gives her the ability to project weather effects through her body. For instance, she can generate lightning, intense cold, and intense heat, from her hands rather than from her actual atmosphere. Her power over thunder has been used to create deafening sounds for distracting her enemies. She can create powerful tornadoes, hurricanes, and various winds that are capable of moving a vast number of objects/people including levitating an entire building, and sending the Hulk soaring away from her and her teammates. Her ability over water and it's forms has been shown by her creating heavy rainfall, and instant floods that have even "washed" away savage land dinosaurs. Control over moisture and temperature allows Storm to freeze/flash freeze objects and people in the blink of an eye.
In fact, when she once lost control of her powers, Storm was in danger of creating another world-wide ice age. She can also generate heat as strong as the earth allows. Storm can control the weather vocally too. On several occasions she has spoken to the weather like a general to her army and the weather obeys. Storm's powers change when she enters a different planet or dimension. In deep space, if close to a star, she can manipulate solar winds. If far from a star, it would take strong concentration to use this power, so, she can almost always depend on her lightning wherever she goes. Storm's ability to adapt to her environment isn't limited to large bodies of water either, as she has manipulated ocean currents similarly to how she manipulates the wind. She can summon clouds and fog to provide cover and obscure the view of her enemies. Storm has also shown that, when drastically overwhelmed, she can become a being with lightning for hair, and breath of fire and ice.
Due to very good training from an early age, Storm can use her powers to set many weather patterns out of place to perform/create exotic feats/effects, and then set them back from where she got them from, putting weather patterns back to their natural state. Thus, she can disperse any Storm she generates as long as she uses her powers wisely, considering the fact that it's easy for her to create weather, but more challenging to disperse it, or, "clear it up". However, Storm may have more to her power arsenal than she shows, as she not only generated unnatural pressure on earth, but also manipulated (and intensified) plasma while in the earth's atmosphere.
Weather Resistance: She seems unaffected by the weather, including lightning and temperature. While in the past, Storm has been attacked with (and harmed) by lightning/electric blasts she hasn't created herself, and almost overheated due to trying to adjust to violent weather, it appears that the more experienced she gets, the less the weather seems to harm her, both indirectly, and directly. This is further shown by her being able to reverse/counter electrically based attacks.
Earth-Link: Storm's mutant powers has created a psychic bond between herself and the primal life force of Earth's biosphere. This bond with the Earth and apparently the entire universe, gives Storm spiritual and material sustenance with an almost empathic sense towards living thing. Her bond with the biospheres while in outer space somehow allowed her to reverse her transformation into a brood queen, summon a solar flare and the ability and call upon a large amount of cosmic energy.
She can disperse natural storms so as to create clear weather. Storm can cause a beam-like path from her hand or hands. Her control over the atmosphere is such that she can create certain effects over a specific area, while shielding smaller areas within the larger area from them for example she could create a rainstorm around herself but prevent rain water from touching her.
She has diverted jet streams so as to create storms over the entire East Coast of the United States. (AN: It should be noted that Storm has on two occasions tapped into electromagnetic energy to enhance her powers. Once to stop a blizzard over Canada and second to create a cosmic-level turbulence around the Earth to block solar radiation. She can create weather effects within indoor areas or within artificially maintained environments: for example she could create an indoor rainstorm. She can create weather effects over very small areas; as when she water her potted plants.Using her precise control over air she has even been shown to control the very air in a persons lungs.
Vampire (formerly): she was bitten by Dracula and turned into vampire. As a vampire she possess various powers:
Shapeshifting: Ororo was able to shape shift into mist and human-sized bat-like creature.
Weather Manipulation: when she turned into a vampire, her control over the weather has increased many times.
Fangs and Claws
Ororo was able to resist the influence of Dracula, and stop the transformation, but the link between her and Dracula has remained till now.
Divine control of the weather (formerly): when she was a Goddess of Thunder and Storms her ability to control the weather was much stronger, almost like Thor's powers.
Magic: As a descendant of an ancient dynasty of African Priestesses, Ororo has a great magical potential. She even considered as a candidate for the title of Sorcerer Supreme.
Expert Thief: Extraordinary ability at picking locks and pockets, escape artist; therefore, she is very stealthy and good at sneaking up on people.
Expert Combatant: She is an experienced hand-to-hand combatant, trained by Wolverine. She is also an extraordinary marksman with handguns.
Expert Gardener: Ororo is also an excellent gardener owing to her supernatural abilities and has her own botanical gardens at the Xavier Mansion.
High Influential Connections: As Queen of Wakanda, Storm has access to a vast collection of magical artifacts, technological and military hardware (including Vibranium), as well as the support of the nation's wide array of scientists, adventurers, and superheroes.
Diplomatic Immunity: As the leader of a sovereign nation, Storm often visits the United States or the United Nations for political reasons. She enjoys diplomatic immunity during these trips, and her embassy is considered foreign soil.
Indomitable Will: Ororo has a very strong will, thanks to years of practice to control the weather. Her will is strong enough to resist the influence of Dracula (the most powerful of the vampires). During her brief stint with the Fantastic Four, she hosted the consciousness of the abstract entity Eternity within her own mind, enabling Dr. Strange to perform a mystical surgery on the dying entity. According to Strange, he and she were the only ones present with the strength of spirit to survive hosting Eternity. The other heroes present were Mr. Fantastic, Invisible Woman, Human Torch, the Thing, Black Panther, and Silver Surfer.
Normal human woman who engages in intensive regular exercise
Claustrophobia: Having been trapped under rubble for three days while her mother lay dying, Storm's claustrophobia was once so severe, it rendered her completely helpless. However, she has more or less conquered her fear, though tight spaces still make her uncomfortable.
Emotional Influence: Storm's ability to manipulate the weather in her immediate vicinity is affected by her emotions; hence, if she does not maintain control, a fit of rage might induce a destructive storm. As a result, Storm has in the past kept a tight rein on all extreme emotions.
Physical Condition: Storm is limited by the force of her will and the strength of her body. It once took her several hours to put an end to a savage blizzard sweeping over much of Canada, and she nearly killed herself from exhaustion in the process.
Naturally Occurring Limitation: Storm must manipulate weather patterns as they naturally exist. For example, she could end a drought in one area by creating torrential rains there, but that would necessitate robbing all available moisture from the surrounding area. (In contrast, Thor, whose weather affecting ability is magical, can change the weather in one area without disrupting existing weather patterns anywhere else). Storm cannot create atmospheric conditions that cannot exist naturally on the planet she is on. She could not, for example, lower temperatures as far as absolute zero or raise them to solar intensities. However, possible now for her it is not a problem, because sometimes Ororo created natural phenomena, which do not exist on Earth, like Jupiterian pressure or solar plasma.
Astral Projection: In the Spirit World, Storm's powers are useless as they exist in her body, not her spiritual essence. However in X-Men: Worlds Apart #3 she was able to use them.
Vampiric Weaknesses (formerly): Like all vampires Ororo had a weakness to sunlight and probably to other their weaknesses (silver, icons, etc.). She is also was obliged to drink blood to survive.