NOAA declares a G5 (extreme) geomagnetic storm

Ongoing discussion [0] (200 points, 6 hours ago, 199 comments), related Most of Europe is glowing pink under the aurora [1] (335 points, 2 hours ago, 95 comments)<p>[0]: <a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=40321821">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=40321821</a> [1]: <a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=40324179">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=40324179</a>

It&#x27;s back down to a G4 for now.<p><a href="https:&#x2F;&#x2F;www.spaceweather.gov" rel="nofollow">https:&#x2F;&#x2F;www.spaceweather.gov</a><p>* Solar wind currently has a mean delay of about 2.5 days. Light takes 504 seconds to reach us at this time of year.

The last G5 storm was in 2003<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;2003_Halloween_solar_storms" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;2003_Halloween_solar_storms</a>