IMPACT! The sudden separation of red and white lines (top right) marks the arrival of a Coronal Mass Ejection on October 8. There was only a minor increase in solar wind speed following the impact (yellow).
(YELLOWKNIFE, NORTHWEST TERRITORIES) The coronal mass ejection that was expected to arrive late afternoon on Monday, arrived about 10 hours earlier than expected, which is not unusual. Calculating the speed of the solar wind, and the time of arrival is not an exact science.
The impact from the CME was weak, but it did generate a brief G2 (Minor) Geomagnetic Storm early on Monday morning, which means an early morning light show for those who live at northern latitudes. It is likely this event will subside during the day, however unsettled conditions are expected to continue throughout into the evening (Mountain Time). Watch for auroras at high latitudes early Monday evening.