You are caught in a storm in your boat engine stops what should you do?

Deploy a storm anchor (sea anchor) from the bow; something that will slow the boat's drift downwind. Something like a small drogue parachute in the water. The wind will cause the boat to drift, and the waves to rise; the storm anchor will slow down the drift, and keep the boat pointed into the wind. Bow-on is the safest direction for your boat to meet the waves. Otherwise, the wind would tend to push the boat sideways, and you could easily capsize.