GEOMAGNETIC STORM WARNING: A large hole in the sun's atmosphere is facing Earth and spewing a stream of solar wind in our direction. Minor G1-class geomagnetic storms are likely when the gaseous material arrives on Oct. 24th and 25th. Sky watchers around the Arctic Circle can expect to see bright auroras, with a slight chance for auroras in northern-tier US states as well. Monitor Spaceweather.com for updates.
Aurora alerts: Sign up for Spaceweather Alerts and get a text message when auroras appear in your area.
Above: This extreme ultraviolet image from NASA's Solar Dynamics Observatory shows a large coronal hole facing Earth on Oct. 22nd. An emerging stream of solar wind flowing ~700 km/s should reach our planet during the late hours of Oct. 24th.
