GEOMAGNETIC ACTIVITY PREDICTED: A stream of solar wind is about to hit Earth's magnetic field. Estimated time of arrival: Feb. 20th or 21st. The gaseous material is flowing from a canyon-shaped hole in the sun's atmosphere. Arctic sky watchers can expect minor geomagnetic storms and auroras mixed with bright moonlight when the fast-moving stream arrives.
[link to spaceweather.com]

Solar Wind [link to www.swpc.noaa.gov (secure)]