According to the U.S. Space Weather Prediction Center (SWPC), a strong geomagnetic storm watch has been issued for tonight and tomorrow (Sept. 6 and 7), which means there’s a good chance of seeing some Northern Lights in the GTA.
The watch was issued after a coronal mass ejection occurred on Monday, which means a significant amount of large matter and electromagnetic radiation was released by the Sun. This event is commonly referred to as a solar storm.
According to the SWPC, the Aurora Borealis will probably be visible in the northern part of the U.S., so Southern Ontario is also very likely to have a view (as long as the sky is clear).
Due to light pollution in Toronto, your best chance of catching a glimpse of the Aurora would be to find a darker location in the city or the GTA and look north.
For an update on the Northern Lights and best times to view, visit the SWPC’s 30-minute forecast.