You can see the effects of the CME on the HF amateur radio bands. This live map (https://g7vrd.co.uk/wspr/IO81 https://g7vrd.co.uk/wspr/IO81) would usually be

You can see the effects of the CME on the HF amateur radio bands. This live map (https://g7vrd.co.uk/wspr/IO81 https://g7vrd.co.uk/wspr/IO81) would usually be full of worldwide contacts being reported by WSPR (Weak Signal Propagation Reporter), but the solar flares have closed down the bands quite considerably. The map is centred on Maidenhead grid square IO81, but you can change it to wherever you are: https://www.whatsmylocator.co.uk/ https://www.whatsmylocator.co.uk/ This will also cause problems with aircraft, as they use HF when they're out of sight of land.