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This article is about the natural phenomenon. You may be looking for the ship.

"The ion storms of Moorja have prevented the deployment of our standard battle-droid forces, but Neimoidian Gunnery Battalions, Gossam Commandos and Koorivar Fusiliers have consolidated to provide Moorja with cost-effective protective forces."

―Shu Mai^[src]

Ion storms were a space phenomena that could cause problems during space travel for the denizens of the galaxy.

Created by a release of magnetic energy within a star, ion storms were fast-moving bursts of plasma that radiated outward into the surrounding star system. They were considered dangerous, as they had the potential to wreak havoc on bodies unprotected by a magnetic field. Starships were particularly vulnerable and, as ion storms could knock out shielding and a ship’s electrical systems (compare ion cannon), they were avoided wherever possible.