Unfortunately this map showing the highs and lows hasbeen damaged, can you fix it?

Are we experiencing a high or a low?

Check it out…….

• http://www.bbc.co.uk/weather/ukweather/pressure.shtml#no_url

Thursday 1pm

How does a depression form?

The stages the formation of a depression

Stage 1 Pm

Tm

Polar air travels towards tropical air

Stage 2 Pm

Tm

Cold polar air starts to cut under the lighter, warm tropical air making it rise. The rising air creates a low pressure on the ground

Stage 3 Pm

TmA spinning depression is formed with

a warm front and a cold front. Winds always spin anticlockwise.

Stage 4 Pm

TmThe depression starts to

die as the warm air is forced to rise

Stage 5

A dead depression. Winds die down (isobars spread apart) and the rain stops

http://whs.moodledo.co.uk/mod/resource/view.php?id=973

5 facts you must remember about depressions:

1. They are always low pressures (air is being forced to rise)

2. Always spin anticlockwise in the northern hemisphere

3. They have a warm sector, cold front, warm front, and sometimes an occluded front

4. Bring cloud, rain and winds

5. Very common in the UK and Ireland.

Can you add labels to this map?

Try to add the following

1. Centre of Low2. Warm front3. Cold Front4. Warm sector

Can you add labels to this map?

Try to add the following

1. Centre of Low2. Warm front3. Cold Front4. Warm sector

Can you add labels to these maps?

• http://www.bbc.co.uk/weather/ukweather/pressure.shtml#no_url

• http://www.metoffice.co.uk/

• http://www.weather.org.uk/charts/UKCpf036.gif

X – Section of a Depression