In general no - WA is a big wind machine! Might have localised effects (eg if they build on Woodies pt?) I cant see it being a big problem regards the seabreeze, as the coast is pretty straight and the wind cross on mostly.
Big drawback is that the teabaggers will have bigger building to smack into when they lose it. Imagine all those building draped in expensive multicolour kites.

steve

where are the high rises going ? is it the coogee thing?

jim

Crissie, high rise buildings will have a very localised effect. You only have to come to Koombana Bay, Bunbury and sail off the KBSC to feel the effect of a distinct wind shadow from that eyesore of a wheat silo esp when a SW is blowing. It's rather similar to sailing in an Easterly - on and off. Not much fun as I had my fair share of dunking here but I think it helped me become more aware of my surroundings.

From my minuscule understanding of aerodynamics coming with my engineering background, the effect of coastal buildings isn't going far, they're just to small. Obviously it could impact your launch if your right in front of it.

I remember windsurfing on Lago di Garda, Italy, which is a famous spot for southern german windsurfers to escape to, located only 4h (plus jams) to cross the alps from munich. The wind's channeled with mountains east and west and comes or goes to the the mountains in the north depending on the thermals (usually you have offshore in the morning and onshore afternoons ... or the other way ). Note: even in summer it's bloody cold (meltwater).

Now I was there three times, every time a total flop. - not enough wind. Especially when you compare to the reliable seabreeze here it is frustrating . And in the middle there's a bit of a hill, maybe 150m high and 400m wide, and when you get into the shadow there it just drops down completely. Offshore you feel it at least a km out, onshore it's rather local to maybe a few hundred meters. (Something to do with the vortex trail forming in the shadow, just try to visualize the flow around and behind your car)

So the message is: With the seabreeze as an onshore wind, it can't have much effect. Anyone want to secure some $100K-funding for this and I'll do the computer simulations.

Cheers,
S.