A celestial spectacle may be on the horizon for Canada on Thursday night as three coronal mass ejections (CMEs) released by the sun are headed towards Earth. CMEs, massive bursts of solar particles that move swiftly on the solar wind, can trigger the mesmerizing display of northern lights when they interact with Earth’s magnetic field. These phenomena often follow solar flares caused by tangled magnetic fields releasing radiation, which can disrupt radio signals on our planet.
Tamitha Skov, a space weather physicist from Millersville University, highlighted the occurrence of three consecutive Earth-directed solar storms originating from sunspot region 4246. The U.S. National Oceanic and Atmospheric Administration’s Space Weather Prediction Center (SWPC) indicated a likelihood of a moderate geomagnetic storm late on October 16 GMT, potentially affecting viewers in the western regions.
While the exact timing of the storm’s arrival is uncertain, SWPC mentioned the possibility of the storm extending into Friday, albeit with reduced intensity. Compared to previous strong storms in 2024, the upcoming event is forecasted as a moderate G2 storm on the geomagnetic storm scale, falling short of the extreme G5 category witnessed last year.
To enhance chances of witnessing the northern lights, individuals are advised to seek dark-sky locations away from urban lights with a clear view of the northern horizon. Specific conditions, such as Earth-directed CMEs, fast solar wind, and a southward-dipping auroral hole, are crucial for the lights to be visible at lower latitudes than usual.
Interested individuals can utilize apps like Aurora Alerts and Aurora Forecast to track the visibility of the aurora borealis in their respective locations. While the upcoming storm may not match the intensity of previous displays, it offers a chance for skywatchers to witness the captivating natural phenomenon.