Aurora Alert

Data from my magnetometer shows sizeable activity from about 15:00 which continues at the moment. This is strong enough for visual northern lights over Ireland. When it gets dark (and the clouds clear) check your northern horizon for faint bands of mainly green or red. This activity is probably due to the impact of a weak CME at 13:00 and the onset of a fast solar wind from a coronal hole that's turning to face us.

Dave Gradwell

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