Strong G3 Geomagnetic Storm Expected June 4-5, Northern Lights Possible in Mid-Latitudes
The National Oceanic and Atmospheric Administration (NOAA) has issued a strong G3 geomagnetic storm warning for June 4 through June 5, 2026. This event is driven by multiple coronal mass ejections (CMEs) launched from an active sunspot region, including two M-class flares and one X-class flare, the strongest type of solar flare. Forecasters warn that some of these CMEs may merge into a phenomenon known as a 'cannibal CME,' potentially intensifying the storm's impact. During G3 conditions, auroras, commonly referred to as the northern lights, may become visible in mid-latitudes, reaching as far south as Illinois and Oregon. While Florida has seen auroras in the past, it is unlikely they will be visible there during this event. The auroras occur when charged particles from the sun interact with Earth's atmosphere, creating vibrant displays of light. 
