Mirages, vintervägg and sea smoke Dec 13 2018

After the warm but chilly weather on Holmön it’s nice to have colder weather at home. The sky has been clear all night and day and the morning temperatur was -14 °C.

The whole open sea was smoking. A common view when the sea is free of ice but the air is cold.

At the horizon I could see the vintervägg, a local meteorological phenomenon that is typical for this season. Vintervägg means “vinter wall” and names a cloud layer on sea. Sometimes it’s quite near, sometimes it’s far away. Today it was far away and a third meteorological effect came into view: A mirage, also called Fata Morgana. It has the same origin as the sea smoke: abrupt temperature differences. This is why these mirages mostly are found in deserts and polar regions.

Skelleftehamn is not really part of the polar region but shares at least some of the meteorological phenomenons.