4°C, clear. Showers later.
I can hear a rumbling above. the deep-throated rumble of hot air out the jetpipes of an airliner. So, with a novelty website to check what aircraft it is- Planefinder, I see nothing on the computer screen. Oh dear, not as good as suggested.
Later: there is supposed ot be one overhead now- from Manchester to Heathrow flying at 18,000 ft. It’s clear sky above & I see nothing up there. It’s obviously a stealth-airliner!
Erm, unless there is a delay and the website is a few minutes late. Ah, yes, that’ll be the reason.
You can get apps for phones that do the same thing. So get one for your smartphone and wonder around with your phone looking upwards worrying about where the missing planes are.