@iamnohappy thank you for the upload.
Alert conditions work as 'condition 1' AND 'condition 2', not OR. So in order for you to receive an alert, both of these conditions would be occurring at once.
You have to set up an alert for Wind and Waves separately.
Check how to set up an alert here – https://community.windy.com/topic/3952/how-to-set-up-a-windy-alert?_=1600415491848