In a high pressure system, cool air and warms, and the weather is and .

Sinks; clear: dry.

Explanation:

Weather can be defined as the atmospheric conditions of a particular area over a short period of time.

The elements of weather include precipitation, wind, temperature, atmospheric pressure, relative humidity, cloud, and wind speed.

The air pressure gradient which typically is the difference in air pressure between two systems affects the movement of atmospheric air. Consequently, this movement has a significant level of impact on the type of weather that is formed between low-pressure and high-pressure systems.

In a high pressure system, cool air sinks and warms, and the weather is clear and dry. Similarly, in low-pressure systems, warm air usually rises and then cools, thus, leading to the formation of clouds and precipitations.

meteorologists would compare a new weather map with one 24 h old to see how fast a front is moving.

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