Boulder, CO – A powerful G4-level geomagnetic storm is producing rare red and green auroras across large parts of the United States tonight, visible far beyond their typical northern range. According to the NOAA Space Weather Prediction Center (SWPC), the intense activity is linked to the ongoing passage of a coronal mass ejection (CME) from the Sun, which reached Earth late Tuesday and continues into early Wednesday, November 12, 2025.
The storm, classified as severe, has generated spectacular auroral displays captured from several states, with bright red and pink arcs glowing over rooftops and landscapes. Skywatchers from California to the upper Midwest and New England reported vivid colors lighting the night sky, while others observed green and magenta bands near the horizon.
NOAA forecasters say Earth is still being impacted by multiple CME waves, and auroras may remain visible through the overnight hours as magnetic conditions fluctuate. While the event is mostly a visual phenomenon, strong geomagnetic storms can also cause minor impacts to power grids, GPS signals, and radio communications.
The SWPC continues to monitor the event and has notified key infrastructure operators. Forecasters note that another, possibly stronger CME could arrive later today, potentially sustaining storm conditions through Wednesday.
For the latest updates and viewing forecasts, visit spaceweather.gov.
