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Old 05-23-2013
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Re: Another America’s Cup entry destroyed

Afternoon winds in "The Slot" (the clear air zone east of the Golden Gate Bridge between Angel Island and Treasure Island) are usually 25-35kts with higher gusts from early June to late September/October. This area has a daily afternoon SCA warning, which only gets dropped when the pressure difference decreases by lower inland temperatures. The pressure gradient formed between the hot inland valley and the coast creates a Venturi effect at The Gate.

I think it would be very difficult to find event days in July where the predicted wind is lower than 25kts. They could hold the race earlier in the day but the wind comes up quickly when it starts blowing so there is not much time between the light morning air and winds above 25kts.

Last edited by KeelHaulin; 05-23-2013 at 05:29 AM.
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