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Phoenix, Arizona – A G4 (Severe) geomagnetic storm, in effect for Jan. 20, is expected to reach Earth, prompting increased monitoring of technology and infrastructure across the Southwest, even as the region avoids the extreme Arctic cold affecting other parts of the country.
According to the NOAA Space Weather Prediction Center, a coronal mass ejection, or CME, launched from the Sun late last week is forecast to arrive late Sunday into Monday. Severe geomagnetic storms can disrupt satellite operations, GPS accuracy, radio communications, and long-distance power transmission systems, though impacts vary by latitude and local conditions…