Ion storm

Ion storm may refer to:

* An interplanetary coronal mass ejection (ICME), a disruption of the fast and slow solar winds, often called "ion storm", "solar storm" or "space storm"
* Ion Storm Inc., a defunct games software company
* A type of electric or seemingly electric phenomenon in science fiction, with no agreement on their specific nature. In the "" games, they act like intense thunderstorms on an un-terraforming Earth that ground aircraft, disrupt radar and force population centers to construct dedicated shelters. In "Twilight Imperium", they're free-standing deep space disturbances that cast their effects for parsecs. In "Star Trek", they're charged and potentially dangerous magnetic storms.