Gatwick at 1150Z had: Variable 5 kn, max 16 kn, whereas Heathrow
was Calm. I don't believe either of them as there is a quite steady
5-knot NNE'ly here. Maybe Gatwick has Nearby Dust Devils and the
Heathrow anemometer needs a squirt of WD40. In any case the Gatwick
"observation" is not exactly helpful to anyone. The wind is very
rarely Variable unless it's less than about 2 kn, or in some particular
lee locations under special conditions. There is almost always a
dominant direction.

Tudor Hughes, Warlingham, Surrey, 556 ft.

In message . com, Tudor
Hughes writes
Gatwick at 1150Z had: Variable 5 kn, max 16 kn, whereas Heathrow
was Calm. I don't believe either of them as there is a quite steady
5-knot NNE'ly here. Maybe Gatwick has Nearby Dust Devils and the
Heathrow anemometer needs a squirt of WD40. In any case the Gatwick
"observation" is not exactly helpful to anyone. The wind is very
rarely Variable unless it's less than about 2 kn, or in some particular
lee locations under special conditions. There is almost always a
dominant direction.

Tudor Hughes, Warlingham, Surrey, 556 ft.


About 5 kn NNE here as well, Tudor. It's been like that since about
0700z.

Norman.
(delete "thisbit" twice to e-mail)
--
Norman Lynagh Weather Consultancy
Chalfont St Giles 85m a.s.l.
England