Over here in Perth, Jet Streams are the least of my worries. The last week has been largely ruined by smoke every night. Some from CALM burning off and some from residential wood fires now that it's got cold again.
Here I am, finally having masterred autoguiding in DEC not just RA, waiting to do a batch of 20 minute exposures with my ST7 to see what mag I can get down to, and all I get every night is smoke! Argh!
I've discoverred the green laser is a very good air quality indicator. I can often see where the layer of smoke stops and starts in altitutde.
Ok, finished venting now.
Roger.