More Local Winds Etc

Question 1

Harmattan

Answer 1

NE trade winds over West Africa.
Sand. Poor visibility.
Reduced vis, up to 3000ft.
December to February.

Question 2

Local winds S America

Answer 2

PAMPERO
A burst of cold air.
Takes the form of a squall line. (A line of thunderstorms).

Question 3

Jet streams occur when air speed

Answer 3

Exceeds 60kts

Question 4

A low level jet stream can occur

Answer 4

Ahead of an advancing cold air mass or above a low level jet stream

Question 5

Polar front jet stream moves

Answer 5

North in June July

South in December, January