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<a href="https://www.world-today-journal.com/arctic-snow-glow-the-science-of-bioluminescence-polar-light/" title="Arctic Snow Glow: The Science of Bioluminescence & Polar Light">Northern Lights</a> ‍Visible Across ⁣the U.S. ⁢- January 19, 2026

Northern Lights might potentially be Visible Across Much of ⁣the U.S. Tonight

A‍ severe geomagnetic ⁢storm is⁣ underway, potentially making the aurora borealis -⁣ commonly known as the Northern Lights – visible across a wider⁤ swath of the United States than usual on the night ‍of January 19, 2026. This rare event is ‍due to a powerful coronal mass ejection (CME) from the sun impacting ⁤Earth’s magnetic field.

What is a geomagnetic Storm?

A geomagnetic storm is a temporary disturbance of‍ Earth’s magnetosphere ⁤caused⁤ by a solar wind shock and/or a coronal mass ejection (CME) ⁣from the Sun.‍ These storms can disrupt radio ‍communications, GPS systems, and⁤ power grids, though the current ⁢event is not expected⁣ to cause‍ widespread infrastructure‍ damage. The strength of geomagnetic storms is categorized on a scale from G1⁢ (Minor) to G5⁤ (Extreme). Currently, a G4 (Severe) geomagnetic storm watch ⁣ is in effect.