Look up: Northern lights could be visible across Canada this week

The northern lights could be visible across most of Canada this week.

The northern lights could be visible across most of Canada this week.

A forecast from the U.S. National Oceanic and Atmospheric Administration (NOAA) shows the dazzling display is expected to reach well below the 49th parallel, creating a high likelihood of aurora activity directly overhead throughout much of B.C., Alberta, Saskatchewan, Manitoba, Quebec and the territories. Northern parts of Ontario, Atlantic Canada and the U.S. are also expected to see the lights.

The forecast indicated visibility on Thursday, but further shows are possible through the weekend, some predict.

With clear and dark conditions, and an unobstructed view of the northern horizon, aurorae could also be visible further afield in places like southwestern Ontario and Nova Scotia. According to the NOAA, nearly all of Canada lies within tonight's "view line."

Increased solar activity this week has already led to colourful displays across the country, including in Alberta, Saskatchewan, Ontario and Quebec.

The NOAA classifies the event as four of five geomagnetic storms that could have "severe" impacts on power grids, spacecraft operations and satellite navigation systems.