This type of PSC is also called nacreous (/ ˈneɪkriəs /; from nacre, or mother of pearl), due to its iridescence. The stratosphere is very dry; unlike the troposphere, it rarely allows clouds to form.

Mar 2, 2024 · Nacreous clouds, or ice polar stratospheric clouds, are a rare type of cloud that forms in very cold conditions and at high altitudes.

Ice polar stratospheric clouds, or nacreous clouds, occur mainly at high latitudes during the winter when temperatures in the stratosphere fall below the frost point.

Also known as ‘polar stratospheric clouds’ since they tend to appear over higher-latitude regions of the world, nacreous clouds are like a stratospheric version of the lenticularis species of wave cloud.

Sep 28, 2023 · One of these special kinds of rare clouds is known as nacreous clouds. More commonly referred to as "mother-of-pearl clouds" because of their iridescent or rainbow nature, seeing …

Nov 19, 2025 · Nacreous clouds, also known as mother-of-pearl clouds, are defined as polar stratospheric clouds occurring in the lower stratosphere shortly after sunset in regions near the Arctic …

Nacreous clouds are rare and very high clouds, known mainly for the coloured light they reflect after sunset and before sunrise. The colours are reminiscent of the colours which reflect from a...

Polar stratospheric clouds (PSCs), also known as nacreous clouds, are unique atmospheric phenomena that form in the lower stratosphere at altitudes between 15 and 25 kilometers, particularly in high …

Dec 16, 2024 · Nacreous clouds are created through a combination of specific weather conditions and the presence of ice crystals in the stratosphere. These clouds form during the winter months in polar …

Oct 11, 2025 · Nacreous clouds, also known as polar stratospheric clouds (PSCs), are high-altitude clouds that form in the stratosphere, typically between 15,000 and 25,000 metres above the surface. …