Dark blue cloudy sky

What is Blocking Pattern?

Occurs when centers of high pressure and/or low pressure set up over a region in such a way that they prevent other weather systems from moving through.

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Glossary

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

A thermodynamic change process in the system without any exchange of heat or transfer of energy between systems. This process...

The formation of fog when warm and moist air passes over a cool or cold surface or, conversely, when cold air passes over...

The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.

A tropical cyclone with sustained winds of at least 74 miles per hour, characterized by a central eye, strong winds, and...

A cold core high is a high-pressure system with cold air at its center. These systems are typically associated with clear...

An instrument for measuring atmospheric pressure.

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

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

A cloud of irregular appearance, composed of irregular cloud fragments.