Archive: https://archive.today/FI6sM From the post: >>A rare G4 geomagnetic storm on Sunday may put on a show across Colorado skies as geomagnetic activity will push auroras farther south than usual. According to the National Oceanic and Atmospheric Administration, solar wind, along with a coronal mass ejection, is putting pressure on Earth's magnetic field. That energy will light up parts of the sky Sunday night into early Monday morning. The strong G4 storm could make the aurora visible with the naked eye as far south as Colorado.