As NOAA analysts predicted, the solar wind speed did not change much in response to the CME. However, the storm cloud contained a south-pointing magnetic field that opened a crack in Earth’s magnetosphere. Solar wind is pouring in to fuel the ongoing display.
The resulting aurora photos were fantastic, as seen on Flickr and social media:
This timelapse of Tuesday night’s aurora appears to have been shot from Saskatchewan, Canada.
The aurora was also cranking in the southern hemisphere: