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 prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...

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

Nor'easter is a meteorological event commonly observed in the Northeastern United States and typically occurs during the...

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

A strong, downward wind caused by a localized column of air sinking rapidly, often resulting in damage similar to that caused...

A narrow band of strong winds in the upper atmosphere, typically flowing from west to east and influencing weather patterns.

Observation of the sky from the observer's location where there are no clouds, and there is no obstruction to visibility....

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

A weather system refers to the movement of warm and cold air across the globe, usually in a recurring pattern. Systems can...

The horizontal transport of any feature within the atmosphere due to the movement of air (wind). This includes phenomena...