Clouds of strange shapes

The appearance of beautiful shape clouds like flying saucer, pea . always makes viewers extremely excited.

Pea-shaped clouds are often formed by gravity waves.

They often look like flying saucers, making many people mistakenly believe that pea-shaped clouds are alien flying saucers.

Mammatus clouds are always accompanied by strong winds.

Mammatus clouds often appear in warm summer months.

Notilucent clouds of iridescent color often form in very low temperature conditions, below minus 78 degrees Celsius.

The Notilucent cloud is well versed from frozen water crystals and is the highest cloud in the Earth's atmosphere.

The cloud is called "cloud of Kelvin-Helmholtz wave".

Cloud curled up in the sky of Sydney city, Australia.

Morning Glory clouds are a special and rare form of round clouds. They are often seen on Cape York Peninsula, a remote area of ​​Australia.

The "cloudy mountains" in Sahara.

Ash and steam rise from the Sarychev crater, in the northwestern Kuril Islands, "devour" a cloud.

Clouds form in the storm Bertha observed from the International Space Station (ISS).