The National Weather Service Space Weather Prediction Center has issued a G4 or Severe Geomagnetic Storm Watch. This is a level four out of five on the alert scale.

A G4 storm usually results in a geomagnetic K-index over 7, but could reach 8 or 9. For us to see the northern lights across NEO, typically a Kp of at least 7 is needed.

News 5

The strongest part of the storm/best chance to see the northern lights is expected tonight and Thursday. This watch was issued due to coronal mass ejections or CMEs that have erupted from the Sun over the past several days.

When CMEs arrive at Earth, geomagnetic storms are the result. The most recent CME occurred early on Tuesday and is the most energetic and fastest of the CMEs. This intense cluster of energy was directed straight at Earth.

This is

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