1. Climate: Factors That Affect Precipitation Objective: Explain what affects precipitation and its role in climate.

2. Precipitation & Climate The amount of precipitation is 1 of the 2 factors that determines a city’s climate.

3. What affects precipitation? 2 natural factors affect precipitation Prevailing winds & Mountain ranges

4. What is a prevailing wind? A prevailing wind is a wind that blows more often from one direction than from any other.

6. Prevailing Winds & Moisture The amount of moisture the wind carries is dependant on 2 things: how the wind forms & direction from which it blows

7. Wind Formation Winds form either by: Rising warm air brings precipitation OR Sinking cool air brings little precipitation

8. Wind Direction Land breeze (land water) Brings little precipitation Sea breeze (water land) Brings more moisture

9. Mountain Ranges & Precipitation Mountain ranges: act as a barrier to the prevailing winds & they force the air to rise, which cools it & causes precipitation

10. Sides of the Mountain Windward side: side that face the wind Receives most of moisture Leeward side: side that faces a way from the wind Receives little moisture

11. Diagram of Windward/Leeward

12. Summary 1. Add questions to the left column of your notes. 2. In place of a summary please answer the following question: How is it possible for a desert to exist next to a large body of water?