Northern Lights Now – The late September geomagnetic activity resulting from a large coronal hole has exceeded initial expectations reaching G3 storm levels and helping aurora hunters world-wide capture staggering views. Solar wind speeds have been between 650 and 750 km/s for just over 24 hours now. Periods of high density and negative Bz, and quickly fluctuating Bz during that time pushed KP values above 6.67 for several hours.
The timing worked well for aurora hunters from Northern Europe across Northern North America. Clouds disrupted viewing in the UK and New England, but many locations saw vivid displays of Green, Red and Purple overnight.
Wendy T shared this great set of 4 images
Thanks Everyone. Heres' a few from last night (not off back of camera but straight off!) Fingers crossed for more tonight.. pic.twitter.com/zr7IEKeyGA
— Wendy T (@TweetZWT) September 28, 2017
Casey Grimley captured some pinks and the coveted fishbone aurora in Ogden Valley
— Casey Grimley (@caseygrimley) May 28, 2017
And Jeff Wallace shared some spectacular full sky Gree swirling aurora
— Jeff Wallace ?? (@Wherezjeff) September 28, 2017
Looking ahead – it seems likely that at least G1 storming will continue through at least the next 12 hours or so. SWPC has extended their G1 storm watch an additional 24 hours through Sept 29.
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