Does anyone know what is too windy for water sports at CTI?

I have been watching the weather for Ocho Rios for the upcoming week (May 10-17) and the weather channel has 20+ MPH winds for most of the forecast. Does anyone know if this will be too much for the dive and scuba boats? What about the island? I have heard they close it if its too windy. What is too windy?

Thanks in advance!