Weather: Chapter 2, Section 3 Winds

The horizontal movement of air from an area of high pressure to an area of low pressure

Differences in air pressure

An instrument that measures wind speed

The increased cooling that wind can cause

Winds that blow over short distances

Unequal heating of the Earth's surface within a small area

Wind that blows from an ocean or lake onto land/sometimes called a lake breeze

The flow of air from land to a body of water

Winds that blow steadily from specific directions over long distances/also created by unequal heating of Earth's surface

The way Earth's rotation makes winds curve

• 1. Trading winds
• 2. Prevailing Westerlies
• 3. Polar Easterlies

Regions near the equator with little or no wind

Is the distance from the equator measured in degrees

30 Degrees north and south of the equator where air stops moving towards poles and sinks

Steady easterly winds

These winds play an important role in the US weather

When cold air near the poles sinks and flows back towards lower latitude

Bands of high speed winds about ten km above Earth's surface