A partial-halo coronal mass ejection (CME) lifted from the Sun at approximately 04:00 UT on 1st September. This fast-moving CME is expected to arrive late on 2nd or early on 3rd September. An earlier CME from 30th August may produce a glancing blow on 2nd September. The combination of these CMEs is likely to enhance geomagnetic activity with significant STORM periods anticipated, following their arrival.
Assuming clear, dark skies, there is a greater chance of seeing the aurora on the 2nd and 3rd of September. Those in Scotland, northern England and Northern Ireland have a better chance if the weather is favourable on those nights.
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