Cirrus Clouds

Cirrus clouds are wispy, thin clouds that are typically found at high altitudes. They are composed of ice crystals and are commonly seen in the sky, especially on clear days. These clouds are often associated with fair weather, but they can also indicate the approach of a change in the weather.

Formation of Cirrus Clouds

Cirrus clouds form at altitudes of 20,000 feet (6,000 meters) or higher, where the air is extremely cold. They are created when water vapor freezes into ice crystals, often due to the presence of high-altitude winds. These ice crystals then cluster together to form the thin, wispy appearance of cirrus clouds.

Characteristics of Cirrus Clouds

Some key characteristics of cirrus clouds include their feathery or wispy appearance, their high altitude, and their association with fair weather. They are often seen as thin, white streaks across the sky, and their presence can indicate that the atmosphere is stable and relatively dry.

Study Guide

1. What are cirrus clouds made of?

Cirrus clouds are composed of ice crystals.

2. At what altitudes do cirrus clouds form?

Cirrus clouds form at altitudes of 20,000 feet (6,000 meters) or higher.

3. What is the association between cirrus clouds and weather conditions?

Cirrus clouds are often associated with fair weather, but they can also indicate the approach of a change in the weather.

4. Describe the appearance of cirrus clouds.

Cirrus clouds have a feathery or wispy appearance and are often seen as thin, white streaks across the sky.

Studying cirrus clouds can provide insight into atmospheric conditions and weather patterns, making it an important topic in the study of meteorology and Earth science.