On October 6, 2026, at sunspot region AR4549, a solar storm headed toward Earth following an M1.4-class solar flare, prompting a moderate geomagnetic storm watch. Stargazers across parts of Canada, the northern United States, and Michigan may see the Northern Lights light up the night sky between late Thursday night and Friday morning.
Sunspot Region AR4549 Launches Coronal Mass Ejections Toward Earth
Early on October 6, 2026, the Sun unleashed powerful eruptions from sunspot region AR4549, which is positioned close to the center of the Earth-facing side of the solar disk. Forecasters at Belgium’s Solar Influences Data Analysis Center estimated the initial CME speed at approximately 560 kilometers per second.
The activity began with an M1.4-class solar flare, quickly followed by coronal massເejections carrying dense solar material toward Earth. Satellite observations and modeling from NASA and NOAA tracked two distinct clouds erupting roughly four hours apart. The initial CME is projected to pass mostly to the north of our planet, but a second CME exhibits a partial halo shape in coronagraph imagery. This ring-like appearance indicates a storm expanding directly toward Earth, carrying denser plasma at its leading edge.
NOAA Issues G2 Geomagnetic Storm Watch for October 9
Forecasters expect the disturbance to arrive late Thursday, October 8, or early Friday, October 9, in response to the incoming solar activity, NOAA’s Space Weather Prediction Center issued a moderate G2 geomagnetic storm watch.
Current three-day forecasts point to minor G1 storm conditions starting between 11 p.m. and 2 a.m. EDT, building toward a potential G2 peak between 5 a.m. and 8 a.m. EDT on Friday. Geomagnetic conditions are ranked on a scale from G1 to G5. A G2 rating corresponds to a Kp index of 6, which can push the aurora oval far enough south to make the Northern Lights visible in locations such as New York and Idaho. However, forecasters emphasize that exact arrival times and storm strengths are subject to change as the plasma clouds complete their journey through space.
Stargazers Spot the Aurora Borealis Across North America
In Canada, the eastern half favors the initial G1 arrival, while western regions are better timed for the G2 peak. For Thursday night, clear skies are predicted across southern Ontario, the north shores of Georgian Bay, Lake Huron, and Lake Superior, as well as southern Saskatchewan and central Alberta.
In the United States, observers in Branch County, Michigan, and parts of the northeastern U.S. hold a chance to see vibrant hues if planetary solar conditions hold steady. Forecasters in Connecticut note that any display reaching the Northeast might remain faint and low on the northern horizon. Fortunately, the moon phase works in observers’ favor: a thin waning crescent moon will rise just before sunrise on Friday, keeping the night sky dark and improving contrast for dark-adapted eyes.
Rural Open Spaces Maximize Viewing Odds
Space weather experts recommend traveling to rural open spaces away from city light pollution to maximize viewing odds. Observers should allow their eyes time to adjust to the darkness and keep a direct line of sight toward the northern horizon.
Uncertainty persists regarding how the incoming CME will interact with Earth’s magnetic field. The ultimate strength and color display depend entirely on the magnetic orientation of the solar wind upon impact, particularly whether it maintains a southward component.