High Pressure and Low Pressure
Weather refers to the state of the atmosphere at a specific time, including conditions like: air pressure, wind temperature, and the amount of moisture in the air.
High Pressure
[edit | edit source]- An area of cool, dryer air
- Air sinks at the center of a high pressure system.
- Weather usually results in clear, sunny skies.
- High Pressure
- (North America: High Pressure system moves outward from the center and clockwise)
- (Southern America: Air in High Pressure systems move outward from the center and counterclockwise)
Low Pressure
[edit | edit source]- An area of warmer air that is also more moist (contains more water vapor)
- Air rises at the center of the low pressure system
- Weather usually results in cloud with precipitation.
- Low Pressure
- (North America: Low Pressure system moves inward toward the center and counterclockwise)
- (South America: Low Pressure system moves inward toward the center and clockwise)