I'd just got my mount drift aligned when the clouds rolled in last night. Then I came inside for dinner thinking they could roll away just as easily. They didn't in a hurry, but after seeing Wavytone's post above I went out and it was clear as. Seeing was much improved for bonus points too
There were a couple of light fluffies threatening my experiments around 3am but it was still clear when I went to bed at 4
Tonight, pre-midnight, is showing promise too, depending on the definition of "coastal fringes"