“A long duration C2 solar flare launched an asymmetrical full halo coronal mass ejection into space,” tweeted the nonprofit science site SpaceWeatherLive (sharing a black-and-white video). “The solar plasma cloud is likely to arrive at Earth late on Sunday, 13 March. Minor G1 geomagnetic storm conditions are likely with a chance of moderate G2 conditions.”

Long-time Slashdot reader PuddleBoy shared this additional report from their web site:

The solar flare lasted for hours and launched an asymmetrical full halo coronal mass ejection into space. Most of the ejecta is heading north-west but a significant part of the plasma cloud is expected to arrive at our planet. The coronal mass ejection was launched at a speed of about 600km/s which is a fairly average speed. This puts the likely arrival time at Earth late on Sunday, 13 March.

Minor G1 geomagnetic storm conditions (Kp5) are likely with a chance of moderate G2 conditions which equals a Kp-value of 6. Middle latitude locations might catch a glimpse of the aurora near the northern (or southern) horizon under optimal conditions.

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Source: Slashdot – Coronal Mass Ejection Reaches Earth On Sunday Night