Saturday, 31 August 2013
Solar Flare spark aurora alert
A full-halo coronal mass ejection (CME) was observed leaving the Sun at approximately 02.48 UT on 30 August. This was associated with a long duration C-class solar flare which originated in the Eastern half of the solar disc.
While the bulk of the ejecta is not earthbound, a glancing blow is expected to reach the Earth magnetic field during 1st September. The combined effect of this CME and the high speed solar wind stream from a coronal hole could cause a geomagnetic storm, thus increasing the chance of viewing the aurora over the weekend.
For more information and to keep up to date with developments please the BGS website: http://www.geomag.bgs.ac.uk.
For more advice on viewing the Northern Lights please visit: