Clouds of unusual shape
Lenticular clouds are especially popular among those who believe in UFOs, because they are very similar to flying saucers.
Cloud-shaped lenses are formed at high altitude and often formed when moist air passes through the ridge, and adiabatically heated (m. E. No heat transfer).
What cloud will depend on the wind speed and shape of mountains. The constant wind can form clouds, which hold their shape and can hardly move in the sky for a long time.
Skier looking at a lenticular cloud, Mauna Kea, Hawaii, USA.
cumulonimbus cloud over west Africa near the border of Senegal and Mali. Cb rise vertically until yet not meet the natural barrier, known as the tropopause, and aligned. Cumulus clouds are usually heralds the beginning of a severe thunderstorm. On this photograph, taken from the International Space Station (ISS), several towers cumulonimbus visible under one main cloud, which casts shadow on the ground enormous.
Vymyaobraznoe cloud over the north-east of South Dakota, USA. Vymyaobraznoe cloud, or tubular, meteorological term that describes cellular formation, which seemed to hang down from the base of the cloud. They can create very unusual and strange shaped cloud. It is also often the precursors of severe thunderstorms.
Cloud of overcoming American fighter F / A -18 Hornet sound barrier over the Pacific Ocean. This plane does not fly through the cloud, he creates it, approaching the speed of sound (768 miles per hour). While the aircraft is moving in the air, for it is formed with a low pressure area. When the pressure therein falls below the pressure of gaseous water, the water in the air condenses and forms a cloud.
The storm formed from sverhyacheyki tornado over the plain Mycroft, Wyoming, USA. Thunderstorms from supercell revolve with great force, creating powerful updrafts and causing severe changes in weather, including tornadoes, hail, heavy rains, lightning and strong wind gusts. Within these long and heavy storms, the wind speed varies depending on the altitude. Because of this, there is a rotating updraft of warm air (mesoscale cyclone) and a separate cold air downward flow. About a third of sverhyacheek cause tornadoes.
Cap-Cloud during the eruption of Sarychev Peak, Kuril Islands, Russia. Cap-cloud may also be called cloud or cloud-scarf-cap, - a small cloud which is formed on top of a large formation. In this picture, the cloud-cap (center) formed above the cloud of volcanic ash from the eruption of Sarychev. A pillar of smoke, steam and ash from the erupting volcano and its slopes down dense pyroclastic flow of ash. This image has been doing the astronauts on the International Space Station. Note the serene area that surrounds the volcano, which was also caused by the eruption.
A ring of steam released from the crater of Bocca Nova of Mount Etna, Sicily. Couple rings obtained when steam is emitted from the circular crater of the volcano. The center ring is knocked out by the action of thermal force, acts on the edge of the ambient air pressure. As a result, the steam begins to rotate around and under favorable conditions, a few minutes later it takes the form of a ring. The process is very similar to the blowing rings of cigarette smoke.
Noctilucent clouds - this ice crystals hung at a height of 80 km and through which the rays of the sun, disappearing over the horizon. Natural nacreous clouds occur at altitudes of 20-25 km. The cloud in this picture formed from the exhaust gases missile launched on a remote site.
sunlit condensation trails over South Wales. The photograph trail left by plane, in the rays of the setting sun. It seems as if it is the trace of a flaming meteor.
Shelf Cloud, Minnesota, USA. When viewed from the ground, Shelf clouds are typically low and has a wedge shape. Such clouds portend a severe storm.
Cirrus jet stream over the Sahara Desert, Egypt. Jet stream - it is moving at a high velocity stream of air at high altitude, reaching several thousands of kilometers in length.
Wavy Altocumulus clouds over the National Park of Abruzzo, Italy. These clouds are composed of parallel strips cumulus clouds. Clouds acquire this kind when they are affected by variable wind.
Lightning strikes the earth from sverhyacheyki. Thunderstorms from supercell revolve with great force, creating powerful updrafts and causing severe changes in weather, including tornadoes, hail, heavy rains, lightning and strong wind gusts.
Another lenticular cloud or cloud-UFOs.
The view from space radiation on the cloud. These huge cloud formation resemble rays of hundreds of kilometers long. Usually portend a gloomy weather and drizzling rain.
Clouds gravitational waves over the Gulf of Mexico, Texas, USA. These clouds, like ripples on the water, often formed over the ocean. ripple effect is due to the movement area of high pressure and cold front. The dense air rises to thinner, forming the crest of a wave. Gravity pulls the dense air back that forms a cavity. This photo was taken the instrument Moderate Resolution Imaging Spectroradiometer (MODIS) on the satellite NASA.
Cloud Von Karman of Alexander Selkirk Island, Chile. These clouds look as if they have specially made hole. This is actually a natural crater, which formed due to eddy currents in clouds. In this photo funnel cloud (twisted in the left portion of the image) forms a mountain peak on the island, Alexander Selkirk (bottom left), which, as it breaks the movable wind cloud. Photographed sensor Enhanced Thematic Mapper Plus at NASA Lansat 7 satellite.
Lightning illuminates the clouds over Monument Peak, Arizona, USA. Lightning - an electrical discharge which occurs due to accumulation of electric charge in the cloud.
A pillar of steam. This type slabolokalizirovannogo vortex can be formed over the water near the lava flow that has reached the shore. Lava pouring into the sea, causes the water to boil, and there is a cloud (top left). Ambient water rises. If the wind forms a rotating air masses, it is rotated in conjunction with strong updrafts from the heated surface of the sea can create a wind tunnel. The reduced pressure inside this tunnel may involve a water vapor clouds from the nearest pair and form a column.
supercell north of Grand Island, Nebraska, United States.
A flying saucer or a lenticular cloud.
Cirrus (Cirrus clouds) consist of thin and light poloc, who gave the name of the clouds from the Latin word "cirrus", meaning a lock or a lock of curly hair. Cirrus clouds are usually white or light gray, and are formed from water vapor at an altitude of over 5,000 meters in the temperate latitudes and over 6100 meters in the tropics. They usually appear in anticipation of bad weather or tropical cyclones and often point to the fact that as soon as the weather turned bad.