1. Where are the hot and cold temperatures?

2. What type of weather looks like it is associated with fronts??
This is a front 

3. What’s happening in the two pictures?
FRONTS
What’s happening in the two pictures? 3

4. What are Fronts? An interface (boundary) between 2 air masses
Conditions at the front are unstable and usually associated with precipitation

5. 5

6. Cold air moves into an area occupied by warm air
Cold Fronts:

9. The colder, denser air quickly pushes under the warm air
The warm air rises, producing tall, thick clouds
Precipitation occurs – moves quickly and violently

11. Temperatures are cooler behind a cold front, and warmer ahead of the cold front.

15. Cold Front Animation

17. 17

18. Warm Fronts:
Warm air mass moves into an area occupied by cool air

19. The warmer, less dense air slowly moves over cold air mass
Warm air slowly rises, expands, cools, and clouds form
Lasts for a longer period of time

21. Temperatures are warmer behind a warm front, and cooler ahead of the front.

22. Warm Front Animation