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Old 23-04-2009, 10:57 AM
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Robh (Rob)
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Join Date: Feb 2009
Location: Blue Mountains, Australia
Posts: 1,338
Quote:
Originally Posted by ngcles View Post

That article at S&T is a good one and summaries the main points well. High-altitude Jet-stream winds are almost always bad news. You can get a map that plots them for Australia here:

http://weather.wvec.com/auto/wvec/gl...JetStream.html

avoid them where possible. A nice, big, slow-moving, stable high-pressure system with widely-spaced isobars is almost always good for good seeing, but generally won't bring good transparency. Low-pressure systems with closely spaced isobars usually mean trouble in paradise.
Les. Thanks for the aussie jet-stream site.
Regards, Rob.

Last edited by Robh; 23-04-2009 at 11:11 AM.
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