Why Does The Winde Change Direction There?

[Cmitchell]

Each time watching the weather the wind travelling in a North Easterly direction, turns 1/4 to the left (north) when it reaches the area that is the west side of Norway, Bergen to Stavanger and further south. Why is this?

Cheers

Mitchell

[Old_Geezer]

No expert but winds do seem to cycle around a moving spot or seem to when I'm looking at the weather map. Maybe the land mass has an effect on temperatures/pressures and encourages the curve to commonly be around there.

[bibblebub]

i came across this site the other day https://www.windyty.com/ - it shows the winds across much larger areas than the usual forecasts

[Peter Pedant]

There are some excellent progz doing the rounds again
on the seasons
- a year in the orbit of the earth ..... or something
and another - do we need the moon ? yes apparently but she take a hour to make the case

Twirly things ( I never did Geog at skool ) vortices have to go anticlockwise in the northern hemisphere ( Coriolis effect ) and that would explain it

otherwise I would say - the wind smacks into a hill when it reaches Norway and so it veers north as the easiest path ........ i did say i hadnt done geog

[EdgeofDarkness]

It's easy to explain. The further north you go, the more likely you are to be on the north side of a low. If you are on the south side of a low, which in western europe almost always travels west to east, then the wind starts SE or S, and 'veers' (through SW and W) eventually to NW. If you are on the north side of a low, then the wind starts SE but then 'backs' (through E and NE) to N. This is because winds around a low are anticlockwise in the northern hemisphere. As a rule of thumb, if you stand with your back to the wind, then the centre of the low is to your left.

[grasscarp]

... Which is known as Buys Ballot law

[douglas9401]

It's merely responding to public opinion.