General weather

General weather

Of or pertaining to weather

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General weather

Confluence

Weather; General weather

A pattern of air flow in which wind direction converges along an axis oriented parallel to the flow along the axis. Considered a form of convergence. The opposite of diffluence.

Magnetic poles

Weather; General weather

Either of the two points on the earth's surface where the magnetic meridians converge. They are not aligned with the geographical poles, but shift and do not lie exactly opposite of the other.

The daily disappearance of the sun below the western horizon as a result of the earth's rotation. In the United States, it is considered as that instant when the upper edge of the sun just disappears ...

Constant pressure chart

Weather; General weather

A chart of a constant pressure surface in which atmospheric pressure is uniform everywhere at any given moment. Elements may include analyses of height above sea level, wind, temperature, and ...

Mammatocumulus

Weather; General weather

An obsolete term for cumulonimbus mammatus, it is a portion of a cumulonimbus cloud that appears as a pouch or udder on the under surface of the cloud. Although they do not cause severe weather, they ...

Supercell

Weather; General weather

A severe thunderstorm characterised by a rotating, long-lived, intense updraft. Although not very common, they produce a relatively large amount of severe weather, in particular, extremely large ...

Overrunning

Weather; General weather

This occurs when a relatively warm air mass is forced above a cooler air mass of greater density that is at the surface. Weather generally associated with this event includes cloudiness, cool ...