Northern lights may illuminate skies across 16 states tonight

Tonight, August 18, 2025, a geomagnetic storm is predicted to allow for visibility of the Northern Lights across various regions in the United States. Over a dozen states are poised to potentially experience this natural phenomenon, including Alaska, Washington, Idaho, Montana, Wyoming, North Dakota, South Dakota, Minnesota, Wisconsin, Iowa, northern Illinois, Michigan, New York, Vermont, New Hampshire, and Maine. The forecast predicts activity to begin around 10:00 p.m. EDT and last until approximately 4:00 a.m. EDT on August 19. This prediction follows an uptick in solar activity, which has been prevalent over the last year due to the sun's current phase in its 11-year solar cycle, nearing its peak. According to the National Oceanic and Atmospheric Administration's Space Weather Prediction Center, the geomagnetic storm is rated as a G1 on a scale that goes up to G5. This indicates a minor storm level, yet sufficient for possible auroral displays. The Kp index, which is used to gauge the strength of potential auroras, may reach a value of 5, suggesting elevated chances for sightings in northern latitudes. The timing coincides with the moon's phase, which is expected to rise early in the mornings this week, contributing to darker skies that enhance visibility for these light shows. The recent solar cycle has seen heightened activity, with sunspots and magnetic fluctuations becoming more frequent. As the sun approaches the decline from its maximum activity phase, experts anticipate that some of the most spectacular auroras could occur in the following years. Notably, periods immediately following the solar maximum can produce particularly vibrant Northern Lights displays. This surge in visibility is also linked with longer duration of night hours as the season transitions, providing a favorable opportunity for enthusiasts and casual observers alike to witness this breathtaking spectacle. Moreover, the rise of the moon during this week is expected to bolster the colors of the auroras, with the hues of pink and green being more pronounced against the dark canvas of the nighttime sky. For optimal viewing, individuals are advised to move away from city lights to darker locations. Technological advancements have allowed smartphones and digital cameras to capture these natural light displays even when they are not visible to the naked eye. As people prepare to look skyward tonight, the anticipation of the Northern Lights offers a chance for communities across the nation to come together and embrace the wonders of nature.