A severe level G4 Geomagnetic storm arrived into earth's magnetosphere on Friday evening NZT, triggering the Aurora Australis over the Tasman off the west coast of the upper North Island. As well as the light display there was some some periodic loss of short wave radio transmissions but no power grid outages were reported.
The storm was associated with heightened solar winds from a coronal hole facing earth and was the strongest storm to impact earth since 8th September 2017 Kp8+ storm.
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