many of us in my area use these tree augers shown above with good results (up to about 45-50mph) on our beach. above that wind they pull out and old tiedown lines snap.

In this picture from 2 years ago i have 3 tie downs in play. 1 on each side with rope going across the hulls, and one out of shot aft of the boat that has a line wrapped around my beams.

these days i would move my tie-downs in a bit and also work my trap handles into my tie down rigging