The general movement of low-pressure centers across the United States is from West to east
Temperatures in the US are cooler than they are nearer to the equator, so air pressure is moderate than it is in the tropics. Because wind flows table clockwise nearby low pressure, winds normally blow from west to east, shifting weather operations to the east.
Generally, dominant winds blow east-west rather than north-south. This occurs because Earth's revolution creates what is perceived as the Coriolis effect. The Coriolis effect creates wind systems rotate counter-clockwise in the North Hemisphere and clockwise in the South Hemisphere
