North wind in July??

Around noon time today the wind came up and Dino was at the causeway and caught some of it sailing his 7.0 on his 92L JP slalom. Ron and I showed up around 2:00 and the wind had backed off but was still blowing out of the north. I rigged a 10.5 and Ron a 8.4. I was out for an hour and was nicely powered. After that the wind filled in more and Ron and Dino were powered up on there 8.4's.