The Latest Magnetometer Trend for the Isle of Mull over the North of the UK.
When a geomagnetic storm starts - the magnetometer responds with spikes indicating unrest. As the storm grows strengthens the magnetometer spikes better... once the trend falls significantly in these lower latitudes there is a chance that we will see the aurora low in the Northern Horizon... don't forget, clear skies and no light pollution is required for best results... Good Luck!!!
Data is updated at regular intervals.