Why does weather change?

Answer 1

Weather changes because differential temperatures cause density changes in air and water, and the resulting pressure gradients stimulate the movement of air masses. Coriolis forces contribute to the effects.

The Sun is the prime mover in all this. Sunlight heats the surface of the earth, and does so selectively because areas farther north or south do not receive the same amount of solar energy. Atmospheric effects influence the weather. Clouds reflect sunlight. Fires, volcanic action and human activity fill the air with a variety of gases and particulates that absorb or reflect more sunlight, each according to its own properties. All of this, the weather, is a dynamic process. It is in flux; it is changing. And the complexity of weather presents us with challenges in managing everything from the growth of food crops right down to planning the logistics of our daily lives.

The latitude, elevation, air pressure, cloud cover, and albedo of the surface, along with the effects of nearby water areas, are what cause the uneven heating of the Earth's surface, so that different areas will have different temperatures.

Answer 2

In the United States, we have various weather patterns each influenced by different fronts. As some examples:

1. Fronts that come down through the northwest areas of Canada affect states in the north Mid-West and into Ohio, Pennsylvania, and western NY.
2. Other fronts from Canada affect almost any adjoining States, from Vermont over to Washington state.
3. Fronts come up from the Gulf, affecting either the Mid-Atlantic States to New England, or it takes a path up through Georgia into northern states of Ohio, Pennsylvania, and western NY.
4. Fronts from the Gulf that push West through Texas, and north into Oklahoma and Kansas.
5. Fronts that begin at the Pacific Ocean and reform in the Midwestern States and push straight west through Illinois, Indiana, Ohio, to middle of Pennsylvania.

Weather fronts develop over water or land. Not just oceans, but all lakes, especially the Great Lakes, can influence developing fronts.

There are many reasons that weather develops and changes. For example, clouds can only hold so much moisture; when saturated, it creates rain (or sleet and snow). Wind, especially at higher levels, drive moisture and weather fronts. Particles and pollution also affect the way atoms behave inside clouds, which can contribute to the development of lightning.

Since winds and air moisture drive fronts, a front can pass through quickly, or a front can stall, dumping rain in the same areas over several days.

Answer 3

Is change because the air and the water and the resulting pressure. Is change because the air and the water and the resulting pressure. Is change because the air and the water and the resulting pressure. Is change because the air and the water and the resulting pressure. Is change because the air and the water and the resulting pressure. Is change because the air and water and the resulting pressure gradients stimelate.

Answer 4

The weather changes because the world rotates and because if the each part of the world only had one season they might freeze to death if they are in winter and they might die of hunger.

Answer 5

Weather conditions change in the troposphere, just below the stratosphere. It changes because the air pressure changes often in the upper layer of the atmosphere.

Answer 6

the weather constantly changes because the earth is constantly changing.