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Noctilucent clouds are the highest clouds in Earth's atmosphere, located in the mesosphere at altitudes of around 76 to 85 kilometres (47 to 53 mi). They are normally too faint to be seen, and are visible only when illuminated by sunlight from below the horizon while the lower layers of the atmosphere are in the Earth's shadow.

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Which type of cloud forms at high altitudes does not produce precipitation and appears thin and wispy?

Cirrus clouds form at high altitudes and appear thin and wispy. They are composed of ice crystals and do not typically produce precipitation.


Lacy or wispy clouds that form at high altitudes?

Lacy clouds that form at high altitudes are cirrus clouds. These types of clouds usually form before there is a change in weather. These clouds form above 20,000 feet, and they indicate fair weather.


What is true of high clouds?

High clouds, such as cirrus, cirrostratus, and cirrocumulus, form at altitudes of 16,500-45,000 feet. They are made up of ice crystals and often indicate fair weather or the approach of a warm front. High clouds can appear thin and wispy due to the extreme cold temperatures at their altitudes.


Why are high clouds always thin?

High clouds, such as cirrus clouds, are thin because they are composed of ice crystals at high altitudes where the air is cold and dry. These ice crystals are formed from the freezing of water vapor in the atmosphere. Due to the low moisture content and cold temperatures at higher altitudes, high clouds appear thin compared to low-level clouds.


Are cirrus or stratus clouds form above 6000 meters?

Cirrus clouds form above 6000 meters, while stratus clouds typically form at lower altitudes. Cirrus clouds are thin and wispy, often seen at high altitudes, while stratus clouds are usually lower in the sky and appear more spread out in a layered formation.