Weather fronts

Question 1

Where is the core of a polar jet stream front found?

Answer 1

In the tropical air mass

Question 2

What weather would you expect from a cold front in terms of cloud forms, changes to air pressure and THEN the conditions AFTER the front passes

Answer 2

Initially lifts warm air causing thunderstorms and CB clouds. Pressure drops then rises. After front passes, cool temperatures and clear or mild sky

Question 3

Occluded front weather

Answer 3

There is often precipitation from CB and NS clouds. Wind changes direction as front passes and temp changes. Usually dry and clear skies after it passes

Question 4

The cloud sequence of approaching warm front

Answer 4

CI, CS, AS, NS, ST

Question 5

Does the wind veer or back upon the passage of a front in the northern hemisphere?

Answer 5

Veers when front passes

Question 6

The weather BEHIND a cold front is typically

Answer 6

Cu cloud, noticeably colder and drier than the air in front

Question 7

Frontal thunderstorms are mainly associated with:

Answer 7

Cold fronts

Question 8

Describe a warm occlusion in terms of relative position of warmest and coldest air

Answer 8

The coldest air mass is AHEAD of the original warm front

Question 9

Most likely weather as a warm front passes is

Answer 9

Moderate continuous rain, intermittent light drizzle

Question 10

What can favour the development of frontal fog?

Answer 10

Increase of relative humidity by evaporation of rain drops