Solar flares of near C

Solar flares of near C as called Hyder flares, named for Charles Hyder, who published studies of such events in 1967.: Today, Oct. 18th, solar wind is blowing around Earth with less speed Solar wind speed: 349.1 km/sec polar geomagnetic storms to only 30%. Arctic auroras might be visible.

 Issue Time: 2017 Oct 18 0610 UTC
A powerful double solar flare eruption took place beyond the Sun's east limb early October 18, 2017.