At the surface, regions of low and high atmospheric pressure normally form closed cells. Air tends to be forced out of these regions. Air tends to be forced into these regions. These pressure cells can be either stationary for long time periods, or they can migrate swiftly across the planet. C. Show overhead with surface high and low on U.S. map 1.
Winds generally move away from high pressure and toward low pressure.
This movement occurs in response to the pressure gradient force . This force always points from H to L. 3. The more closely spaced the isobars are on the map, the more rapid the horizontal pressure change, and therefore, the higher the windspeed. D. Vertical structure of pressure cells. Converging air into cyclone rises vertically.