U.S. issues first geomagnetic storm alert in two decades, threats to communication and power grids heightened

REPORT: The U.S. government has issued its first geomagnetic storm watch in ~20 years, warning Americans of solar activity that could knock out communications and GPS systems.

According to NOAA, the power grid is at risk and warns Americans of “possible widespread voltage control problems.”

The storm is expected to hit Earth on Friday and go through Saturday.

The storm is caused by “a large sunspot cluster has produced several moderate to strong solar flares.” (NOAA)

The sunspot is about 16x the diameter of Earth. The solar storm could also trigger norther lights “unusually far south” on Friday night. (WaPo)

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