Observed average surface pressure and winds during July

Semi-permanent pressure areas:

  1. Bermuda-Azores High

  2. Pacific High

  3. Iclandic Low


1.   How do the strength and position of these feature differ from July to January

2.  Why is the ITCZ further North in July and January??

Check out the 500 mb hemispheric chart to identify any of these semi-permanent or seasonal highs and lows....