Spectacular Northern Lights show to continue into weekend

Statistically, the best time of year to catch a glimpse of the aurora in Finland is around the autumn equinox, near the end of September.

Photo shows northern lights over a dark forest.
Stronger solar winds can lead to different shades of colour in the aurora. Image: Hanne Kinnunen / Yle
  • Yle News

Stargazers were treated to a spectacular show of the Northern Lights in skies over Finland on Wednesday and Thursday, with meteorologists predicting the aurora activity will continue into Friday night at least.

This is due to an increase in geomagnetic activity following a series of strong solar flares reaching Earth over the past few days.

According to the Finnish Meteorological Institute (FMI), there will be a high probability of seeing the phenomenon over most of the country on Friday night, including southern areas.

However, forecasts for heavy rain may obscure the view.

Statistically, the best time of year to see the Northern Lights is around the Autumn Equinox on 22 September, FMI meteorologist Nina Karusto explained.

"Darker evenings and freezing weather also improve the chances," Karusto said.

She added that the more intense the solar activity, the greater the chances are that the lights will produce different shades of colour, such as lilac.

"During weaker solar winds, the green-hued Northern Lights are by far the most typical," Karusto noted.

The All Points North podcast looked into the science, the myths and the social media power of Finland's aurora borealis. Listen to the episode via this embedded player, on Yle Areena via Apple or Spotify or wherever you get your podcasts.

The science, myths and social media power of Finland's aurora borealis
All Points North

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