Dark blue cloudy sky

What is Considerable Cloudiness?

Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear areas may still be visible.

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Glossary

A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...

A type of low-altitude cloud that forms in uniform layers, often covering the entire sky and producing overcast conditions.

An instrument that continuously records atmospheric pressure over time. It uses a barometer to measure pressure and creates...

A closed low, also known as a cut-off low, is a low-pressure system that is entirely isolated from the main atmospheric circulation...

A rapidly rotating column of air extending from a thunderstorm to the ground, capable of causing significant damage.

Precipitation in the form of small balls or lumps of ice that form in thunderstorm updrafts and fall to the ground.

The occurrence of storms resulting from the horizontal advection of cold air at high levels or the horizontal advection of...

The measure of the water vapor or moisture content in the air, expressed as the mass of water vapor per unit volume of air....

Condensation pressure deficit refers to the difference between the actual vapor pressure and the saturation vapor pressure...

A cold core low is a low-pressure system where the coldest temperatures are found near the center. These systems are often...