Warp storms are violent disturbances in the Warp that spill into realspace, cutting off whole regions, swallowing fleets, and sometimes twisting time itself. They’re one of the biggest reasons the Imperium can’t hold itself together.
What is a warp storm?
The Warp is never calm, but sometimes it goes completely berserk. When that happens, you get a warp storm: a region of the Immaterium so violent it bleeds into realspace and wrecks everything nearby.
They can last days, months, or centuries. A ship caught in one might get flung thousands of light years off course, get trapped in the Warp forever, or emerge to find that centuries passed while only weeks went by for the crew. Systems cut off by a storm can lose contact with the Imperium for generations.
Why warp storms matter
Warp travel is the only practical way to cross the galaxy, so a warp storm is a blockade that can’t be broken. Isolated worlds wither, get conquered, or fall to Chaos while nobody’s looking.
The worst storms reshape history. The Age of Strife, which shattered humanity’s first interstellar civilisation, was driven by massive warp storms. They only cleared with the birth of Slaanesh, which let the Emperor launch the Great Crusade.
Notable warp storms
The biggest one is the Eye of Terror, the largest warp storm in the galaxy. It formed when Slaanesh was born and sits over the old Eldar homeworlds. The Cadian Gate is its main entrance, and the fortress world Cadia guarded it for millennia.
The Cicatrix Maledictum, or Great Rift, tore the galaxy in half after the Thirteenth Black Crusade. The Maelstrom is a notorious storm that’s home to pirates and renegades. The Hadex Anomaly defied classification until the Great Rift opened because of its time distortions.
| Name | Location | Notes |
|---|---|---|
| Eye of Terror | Obscurus | Largest warp storm, created by Slaanesh’s birth, guarded by Cadia |
| Cicatrix Maledictum | Galaxy-wide | Great Rift, created by the Thirteenth Black Crusade |
| Maelstrom | Ultima | Haven for pirates and corsairs |
| Hadex Anomaly | Ultima | Time distortions, classified as warp storm after Great Rift |
| Gates of Varl | Ultima | One of the ‘weeping sores’ held back by Grey Knights |
How warp storms connect to Chaos
Warp storms aren’t just weather. They’re raw Chaos bleeding into reality, and daemons pour through wherever they touch down. The Grey Knights keep watch over about fifteen of these ‘weeping sores in real space,’ including the Maelstrom and the Gates of Varl.
For Chaos warbands and renegades, a storm is cover, a highway, and a weapon all at once. For everyone else, it’s a reminder that the Warp doesn’t need a reason to tear the galaxy apart.
Key facts
- Warp storms are violent disturbances in the Warp that affect both the Immaterium and realspace.
- They can last from days to centuries and cut off entire star systems from the Imperium.
- Ships caught in them risk being lost, thrown off course, or suffering time dilation.
- The Eye of Terror is the largest warp storm, born from Slaanesh’s birth.
- The Cicatrix Maledictum, or Great Rift, split the galaxy after the Thirteenth Black Crusade.
- The Grey Knights keep watch over roughly fifteen major warp storms, including the Maelstrom and Gates of Varl.
FAQ
What causes a warp storm?
The Warp is naturally volatile, and disturbances can turn regions of it into raging storms. Major events like the birth of Slaanesh or the Thirteenth Black Crusade can create or worsen them.
Can ships survive a warp storm?
Sometimes, but it’s never good. A ship might get blown off course by thousands of light years, trapped in the Warp, or emerge to find centuries have passed.
What’s the biggest warp storm?
The Eye of Terror is the largest known warp storm, created by the birth of Slaanesh. The Cicatrix Maledictum is the most destructive recent one.