Polar Stratospheric Clouds are also known as nacreous (mother of pearl) clouds due their iridescent appearance. They appear at altitudes between 15 and 25km above the Earth. They are best viewed at twilight,
Moderate aurora activity.
Our blog has become an almost daily diary for Arctic Frontier. See the changing seasons, check out the aurora conditions and click on our archive to get an idea of what to expect when you come to Levi.