Joslyn Jackam

Joslyn "Joss" Jackam, nicknamed Weather Witch by Caitlin Snow, is the estranged daughter of Mark Mardon and an unnamed woman and the niece of the late Clyde Mardon.

Early life
Joslyn Jackam was born to Mark Mardon and an unnamed woman when they were still in high school. Her father left her and her mom to focus on his criminal career. She had a falling out with her mother and became a self-taught amateur meteorologist but lost her grant after too many dangerous experiments.

Revenge on her father
During the night of the Enlightenment, her van was struck by the S.T.A.R. Labs satellite. Her weather van is transformed into meta-tech with the ability to control the weather similar to her father and uncle. She would later attack a power plant in her plan to kill her dad and broke into Iron Heights to kill him, but the Flash intervened and took Mardon away and she demanded him to be brought to her. She was tricked by Team Flash after dropping a truck on a hologram of Iris West, who was impersonating her dad. She planned to destroy the whole of Central City but was stopped by the Flash.

Powers

 * Abilities via Weather staff:
 * Weather Manipulation: The staff is able to control the weather in various ways. From summoning lightning, to conjuring storms.
 * Aerokinesis: When Joss broke into the meta wing, she used air attacks against Barry and Nora.
 * Electrokinesis: She has shown to be able to generate blue and red electricity with her staff, she also used it to create an electric cyclone.
 * Teleportation: She has shown to use the staff to generate lightning that she can vanish into.

Equipment

 * Weather Staff: Joss' staff allows her to control the weather and generate tornadoes, thunderstorms, etc. similar to her father and uncle's powers.

Trivia

 * Joslyn Jackam is the eighth case of gender-bending in . The first six were Bug-Eyed Bandit, Dr. Light, Top, Black Bison, The Fiddler, Null and Spencer Young.
 * Joss is also the second character after Dr. Light to be a composite character with her comics counterpart.
 * Joss is an amalgamation of two characters from the comics: Josh Jackam and Weather Witch.
 * Joss' comics counterpart, Joshua "Josh" Jackam, was the son of Mark Mardon and Julie Jackam. He had the same powers as his father.
 * In the comics, Weather Witch (which is Joss' alias in the show) is an ex-prostitute who worked for Penguin and with the New Rogues, a group of criminals who used the original Rogues' gimmicks, but were killed by the Rogues.