Dark blue cloudy sky

What is Cirrostratus?

A cloud that develops from Cirrus, completely or partially covering the sky, creating a halo effect, thin, sheet-like, milky white, fibrous or vein-like.

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Glossary

Ball lightning appears during thunderstorms, taking the shape of glowing, electric orbs in the sky. It can appear in a variety...

The upward movement of air caused by a topographic barrier, such as a mountain, which can lead to cloud formation and precipitation.

The amount of radiation, heat, or light passing through or flowing from a unit area of a surface.

The heating of the Earth by the sun causes daily changes in both the direction and speed of the wind. During the day, ground...

The names given to the winds blowing from the four cardinal directions (north, east, south, and west - N, E, S, W) on a compass.

An image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale...

The amount of water vapor present in the air, which can affect comfort levels and weather conditions.

The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.

A strong wind typically ranging from 34 to 40 knots (39 to 46 miles per hour) and often associated with rough seas and stormy...

A measurement determined by the wave lengths and sea conditions caused by the effect of wind, and by the movement of tree...