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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A rapidly rotating column of air extending from a thunderstorm to the ground, capable of causing significant damage.
A thin, white cloud layer that is intertwined or separate, arranged in regular order, and does not cast a shadow.
An instrument for measuring atmospheric pressure.
Air laden with sand and dust, common in areas devoid of permanent vegetation, especially deserts.
The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.
Observation of the sky from the observer's location where there are no clouds, and there is no obstruction to visibility....
The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.
An image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale...
A prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...
A tropical cyclone with sustained winds of at least 74 miles per hour, characterized by a central eye, strong winds, and...