The British Geological Society is warning that the Earth is about to get hit by the most powerful solar storm in over two decades. The NOAA Space Weather Prediction Center similarly upgraded its forecast from G3, meaning “strong,” to G4, indicating “severe” conditions, for Wednesday. Meanwhile, the British Geological Society says the incoming storm could grow to “achieve the maximum level of G5,” or “extreme” conditions. In May 2024, for instance, a G5 solar storm caused tractors and other farming equipment that rely on GPS and other navigation tech to suddenly break down. More on solar storms: Sun Fires Energy Blast Straight at Mysterious Interstellar Object Cruising Through Solar System