The sun has unleashed 3 separate solar storms that have combined to smash into Earth’s atmosphere
Forecasters say the storm will continue tonight, causing the huge aurora to be visible from the Earth’s north. It should be seen in much of Europe, as long as there are no clouds, and may even be visible as far south as the Canadian border with the US.
But the phenomenon could cause problems with electricity supplies here.
The US Government’s Space Weather Prediction Center (SWCP) said: ‘Aurora watchers in North America, especially northern states of the US, should stay alert.
‘The geomagnetic storm that began on 22 June has reached G4 (Severe) levels once again as of 0513 UTC (0113 EDT) on 23 June.
‘Solar wind conditions remain highly favourable for continued Strong Geomagnetic storming, with both fast solar wind and strong magnetic fields.’
‘This is the very early stages of an event that will play out over many hours, with SWPC forecasting continuing storm level intensities into tomorrow.