I was out kiting in about 20knt ne wind at about 5pm this arvo on the lake at the enterance,central coast, when over about 5mins the wind died to approx 5-8knts. I couldnt keep my kite up, but thought the wind will come back soon. It didn't I swam in about 500m and then walked back to my launch area. This took about 45mins and when I got back still no wind. There was no change in the weather and when I got home I looked at the graph and was amazed to find nothing out of the ordinary. I should note that I have kited here quite a few times before and the location is ok in every wind direction from east to north

Here is norah head graph from this arvo. Its located about 10kms up the coast from where I was



Can any of you people with a better understanding of what makes the wind work explain what happened to the wind today?