1. Continental & Local Winds
darkroom.baltimoresun.com

2. Effects of Seasons & Continents
Land heats faster than water
creates low pressure over land
high pressure over oceans
summer conditions

3. Pressure Pattern: Summer

4. Effects of Seasons & Continents
Land cools faster than water
creates high pressure over land
low pressure over oceans
winter conditions

5. Pressure Pattern: Winter

6. Monsoon: seasonal wind change
Caused by changes in heating of the land surface
Strong summer heating
Weak winter heating
Temperature difference shifts wind direction

7. ITCZ seasonal change

8. Local Winds: Lake Breeze
Same concept as monsoon, but occurs only during the day; smaller scale than a monsoon

9. Local Winds: Land Breeze
Same concept as monsoon, but occurs only during the night; smaller scale than a monsoon

10. Review Questions
How does average air pressure over the U.S. in summer compare to winter?
Explain why the location of the ITCZ varies from season to season.
Compare and contrast a land breeze to a lake breeze.
Explain why India has a rainy summer and a dry winter.