WASHINGTON (TND) — The U.S. Space Weather Prediction Center on Thursday issued a severe geomagnetic storm watch for a solar event which could impact a majority of Americans Friday into Saturday.
Officials explained in a release they expect an eruption of solar material, known as a coronal mass ejection (CME), to result in a geomagnetic storm. Along with the release was the rating of G4 for “severe,” which the agency has not issued since 2005.
When [CMEs] arrive to Earth, a geomagnetic storm can result,” officials wrote. “Watches at this level are very rare.”CMEs typically see “a billion tons or so of plasma from the sun” arrive on Earth, according to NOAA. This can result in a “major disturbance” of Earth's magnetic field and cause disruptions of navigation systems, power grids and radio communications.
Also possible during geomagnetic storms are auroras, commonly known as northern lights. Americans may be able to view these beautiful light displays far into the Deep South.
The last geomagnetic storm to receive a G5, or “extreme,” rating was in 2003. That storm shut down power in Sweden and damaged power transformers in South Africa, NOAA said.
Those hoping to view an aurora should look to the skies late Friday night and early Saturday morning. The event will be most visible in dark places away from city lights.
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