Jet Stream or Why We Never Have Good Seeing

I was watching more of Christopher Go's processing video and he mentioned a website that tracks the jet stream around the world. 

Here's the link: http://www.stormsurfing.com/cgi/display_alt.cgi?a=glob_250

Normally, North America has about TWICE the jet stream activity so I need to get out there and continue to image the planets.   Obviously, the best places to image planets are going to be around the equator.   (From what I can tell, the red circles represent relative low pressure zones which are also centered around the Southwest in the above image.   Though we are not in the thick of the jet-stream, I suspect the low pressure creates its own problems.)

After watching more footage from different times of the year, in the US, the best places seem to be California and Florida.  The NE US looks like they are perennially locked into the jet stream.

Interestingly, this image answers the question: Why aren't there more high-quality images coming out of the UK?  The reason I was asking the question was that I noticed that a lot of planetary imagers are near or surrounded by water.   And so that in and of itself is not the best criteria.  (Later:  This does NOT explain why we are seeing good images coming out of the Netherlands (Emil Kraaikamp) and Belgium (Leo Aerts)).

Glancing around the world, besides SE Asia extending into the Oceanic countries, Northern Brazil and all the Latin American countries look good.  The equatorial countries around Africa look good also.   But the coastal areas of Somalia, Kenya, and Tanzania look especially promising.  If these equatorial African countries had more amateur astronomers, I bet we'd be seeing world-class images coming from those areas.