Occlusions | Oxford

Question 1

Occlusions:

As the ___ front is moving faster than the ____ front the surface position of the ___ front will eventually catch up with that of the ____ front. When this occurs we have an occlusion. What happens next depends on the __________ of the air _____ of the warm front and ______ the cold front.

Answer 1

As the cold front is moving faster than the warm front the surface position of the cold front will eventually catch up with that of the warm front. When this occurs we have an occlusion. What happens next depends on the temperatures of the air ahead of the warm front and behind the cold front.

Question 2

A warm occlusion will be formed when -

The result being -

The type of weather -

Answer 2

The cold air ahead of the warm front is colder than the air behind the cold front.

Cold front moving up and over the warm front pushing up the warm sector

Embedded cb, Most of the precipitation in the warm occlusion occurs AHEAD of the surface position.

Question 3

A cold occlusion is formed when -

The result being -

the type of weather -

Answer 3

The cold air behind the cold front is colder than the cold air ahead of the warm front

cold air behind the cold front undercuts the less cold air ahead of the warm front, also pushing up the warm sector.

embedded CB, but most of the precipitation is BEHIND the surface position of the occlusion

Question 4

Weather is usually bad because the normal frontal depression weather is -

Answer 4

concentrated into a smaller horizontal band and therefore a mixture of clouds can occur, e.g. Cb embedded in Ns

Question 5

an occlusion forms towards the -

Answer 5

end of the life cycle of a depression