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

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

The term used for semi-stationary high-pressure centers such as the Azores and North Pacific Highs, which occur in the narrow...

Condensation is the process by which water vapor in the air cools and changes into liquid water. This process is crucial...

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

Large, fluffy white clouds with flat bases, typically indicating fair weather, though they can develop into storm clouds...

A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...

A thin, white cloud layer that is intertwined or separate, arranged in regular order, and does not cast a shadow.

Confluence refers to the area where two or more air streams or bodies of water meet and combine. In meteorology, it often...

A towering cloud that often reaches great altitudes and is associated with thunderstorms, heavy rain, and sometimes severe...

The jet stream forming the boundary between tropical air and sub-tropical air, characterized by isothermal compression and...