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

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

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

A measure of how hot it feels when relative humidity is combined with the actual air temperature, often referred to as the...

A mass of very cold, dry air that mostly originates over the Arctic Ocean.

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

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

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

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

A weather watch means there is a risk of weather hazards in the near future, which could pose a threat to life/property....