The Black Hole is a criminal organization in Central City built mainly with scientists who have studied the Speed Force and want to harness it's powers.
Speed Force Storm
In the events of The Flash #1, The Flash stopped Black Hole during a heist on S.T.A.R. Labs.
After the heist, August Heart, who was present in the crime scene, gained his connection to the Speed Force, and started his new life as Godspeed.
In The Flash #2, Black Hole creates the Speed Force Storm, a storm that gave many people in central city the powers of speedsters, including Meena Dhawan (AKA Negative Flash).