A severe geomagnetic storm is forecast to hit Earth's magnetic field on Wednesday, which could cause widespread disruption to infrastructure technology and make northern lights visible for much of the northern half of the U.S.

The National Oceanic and Atmospheric Administration on Tuesday issued a G4, or severe, geomagnetic storm watch in response to recent coronal mass ejections, or CMEs, from the sun. The highest geomagnetic storm level is G5, which is considered extreme.

The latest CME was the "most energetic and fastest of the CMEs" that erupted in the past few days, NOAA said. It was also associated with one of the strongest solar flares of the current solar cycle. The flare peaked around 5 a.m. ET Tuesday and was classified as an R3 or "strong" flare, meaning it has the potentia

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