This is the first G4 severe level geomagnetic alert issued since 2005 with the coronal mass ejection arrival as early as this evening US time, NOAA's Shawn Dahl tells reporters on a conference call.
Operators of North America power grid should have ample time "to adequately prepare" to help mitigate and control any developing problems, explains NOAA's Dahl. Worse possible situation would be a "Carrington Event" but "we're not anticipating that."
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