1. Local Winds, Global Winds and The Jet Streams
How do Local winds differ from global winds? How do global winds and the jet stream influence weather and climatic conditions?

2. Global Wind Belts Use this to label your global winds map.
Label the name of the wind belt AND draw arrows to show which way the winds blow.

3. Located along the equator.
Doldrums
Located along the equator.
Air: No winds blow because the warm rising air creates and area of low pressure

4. E W Trade Winds Blow from East to West.
Occurs: degrees in both hemispheres.
Called this by use of early traders/explorers.
Weather (Air): Tropical Region; warm tropical air in that climate zone. W E

5. Prevailing Westerly Winds
Blow from west to east in the
Flow towards the poles from west to east carrying moist air over places in this area.
Occurs: 30 degrees to 60 degrees in both hemispheres
Temperate Region. W E

6. Global Winds
Weather: Temperate temperatures and weather are affected most by the changing seasons, but since the Westerly Wind Belt is in that region, the weather systems during any season move from west to east. E W

7. Global Winds
The United States is in the Westerly Wind Belt, the weather systems move across the country from West to East. W E

8. NE W Polar Easterlies Blow Northeast to West in the Polar Region
Occur: 60 degrees to the poles in both hemispheres.
Air: Polar cold moving from the poles toward the West. In both hemispheres. NE W

9. Global Winds Polar Winds Westerly Wind Belt Trade Winds
The Polar Winds are in the Polar Region moving from NE to W
The Westerly Wind Belt is in the Temperate Region moving from W to E.
The Trade Winds are in the Tropical Region moving from E to W.
Polar Winds
Westerly Wind Belt
Trade Winds

11. Jet Stream
Jet Stream: Narrow belt of strong winds that blow in the upper troposphere/lower stratosphere
A fast, strong flowing, river of air
Usually flow from west to east.
Can rise, dip or split bringing in cold or warm air to the US.
Meteorologist and pilots
study this.
Jet Stream can effects storm movement

12. E W Jet Stream WATCH THE VIDEO ABOUT THE JET STREAM
As these changes occur, air masses and weather systems in its path are moved along by the fast moving air. E W

13. Jet Stream
The cold Polar Jet Stream can bring down cold, polar conditions from the North. N

14. Jet Stream
The Subtropical Jet Stream can bring warm tropical conditions from the South to the North.(in the Northern hemisphere). N S

15. Hand-out Directions
1. Use the pictures from the power point to label the Global Winds on you diagram.
2. Use the hand-outs in the back of the room to fill in the pictures for the land and sea breeze.
- Must include the H and L pressure zones on each picture.