(CNN) — Dazzling auroras delighted sky-gazers Tuesday night , even in southern US states such as Florida where they rarely make an appearance — and more colorful displays are expected again Wednesday as solar storms unleashed by the sun continue to reach Earth.

Strong geomagnetic storm conditions — triggered by intense solar flares — are ongoing, the National Weather Service’s Space Weather Prediction Center has reported. Currently classified as G3 on a scale from 1 to 5 to indicate severity, the event could reach severe, or G4, conditions with a chance of more extreme solar weather, according to the center. A G4 is also predicted for Thursday, and the northern tier of the US could see auroras tomorrow evening as well, said Shawn Dahl, forecaster at the center.

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