Quote Originally Posted by swampmonster View Post
Thunder storms. You can track them and see if there is a way around them. Sirius weather is worth it as you can see storms coming from the land out.
This is probably most useful. Collison avoidance is iffy to me. I have a 12kw radar and it will pick up pretty small boats at a distance. But most radars have a blind spot for close in targets. If you can't see it in front of you, best to slow down.