Final answer:
Weather typically moves from west to east across the United States due to prevailing winds, the jet stream, and the influence of mountain ranges.
Step-by-step explanation:
Weather typically moves from west to east across the United States. This is due to several factors, including the prevailing winds, the jet stream, and the influence of the Rocky Mountains and other mountain ranges.
The prevailing winds in the United States generally blow from west to east. These winds are driven by the rotation of the Earth and the temperature differences between different regions. As a result, weather systems, such as storms and fronts, tend to move in the same direction as the prevailing winds.
The jet stream, a narrow band of fast-moving air in the upper atmosphere, also plays a role in the movement of weather across the United States. The jet stream generally flows from west to east, and weather systems often follow the path of the jet stream.
Finally, the presence of the Rocky Mountains and other mountain ranges in the western United States can influence the movement of weather systems. The mountains can act as barriers, forcing weather systems to either go around or over them. This can result in changes in the direction and intensity of weather systems as they move across the country.