Skywatchers across Lambton County are keeping their eyes on the horizon tonight, November 12, as one of the strongest solar flares in recent months could bring a vivid display of auroras over Sarnia.
According to aurora enthusiasts, an interplanetary shock was detected on Monday, November 10. An interplanetary shock is a wave of high-speed plasma and magnetic fields ejected from the sun that travels through space. The scale of the shock felt on Monday was comparable to the shock that occurred last May, which resulted in a massive geomagnetic storm that turned skies across the Great Lakes region pink, purple, and green. The current solar flare activity is among the most powerful of the year, prompting widespread anticipation for a potential light show.
Official forecasts describe “active aurora possible” conditions, with a slight chance of isolated minor substorms, and favourable conditions for major auroral activity if multiple solar flares merge into a single powerful event.
Cloud cover remains the biggest obstacle for Sarnia-area residents hoping to catch a glimpse. However, if conditions clear, the best viewing times are expected to be late evening through the early hours of Thursday morning, away from city lights.
Residents are encouraged to look north toward the horizon and keep cameras ready—tonight’s geomagnetic activity could make for a rare and breathtaking scene over Sarnia’s night sky.
