Don't know what half those words mean
but there is something strange in the upper atmosphere - managed to get a bit of observing between the last shower & the high cloud spreading in ahead of the next front, which seems to be here now. The seeing was abysmal, could hardly use x77 because star images are smeared into big fuzzy blobs, in fact it was even difficult to focus my small scope (8 cm refractor) at x24. This sort of smearing often seems to occur when there is a jet stream around, but I can't remember it ever being as bad as this.
