How does the difference in air pressure masses affect wind speed? When low air pressure and high air pressure masses are far apart, air moves quickly from low to high pressure areas. When low air pressure and high air pressure masses are far apart, air moves quickly from high to low pressure areas. When low air pressure and high air pressure masses are close together, air moves quickly from high pressure to low pressure areas. When low air pressure and high air pressure masses are close together, air moves quickly from low to high pressure areas; this creates stronger wind speeds.