Three CMEs Could Spark a Northern Lights Show Across the U.S. Tonight

Three coronal mass ejections are racing toward Earth and could produce glancing geomagnetic storms over the next few days, raising the odds of seeing the northern lights across parts of the northern United States tonight and possibly into May 20. If conditions peak at G1, viewers in Alaska, Washington, Montana, North Dakota, Minnesota, Michigan and Maine may spot auroras; with a stronger G2, Idaho and New York could join the show. Most CMEs will miss Earth, but lingering solar wind from a coronal hole could boost geomagnetic activity. The best viewing window is a few hours around local midnight in clear, dark skies away from light pollution, though visibility remains unpredictable depending on magnetic field alignment.