seaworthiness
The Catalina 22 makes some interesting sea passages every year on both sides of this continent: broaching wave height is only one consideration if you're stuck out in the chuck.The ballast ratio is under 20% of the mass, which makes it tender (40% is very seaworthy). With a D/L of about 141.5, it has a corky action in a seaway (275 is bluewater)which is concerning but doesn't mean it's going to broach. It is oversailed by a factor of two for its LWL in 20 knot (trade) winds, which means you should have the ability to reduce to about 100 ft2 to take pressure off rigging in 20 knot winds. The SA/D of 19 coupled with the D/L of under 150 suggests the boat is designed to move well in lesser airs of 10-12 knots, and it does.As far as wave height, if the seas are steady (not confused by wind one way/tides opposite) and you are on an even bottom so you don't get oversteepened waves over shoals, and if you are away from major freshwater river mouths that reduce your buoyancy 10% just when you need it, the boat can handle green water over the bow, but if you are in all of the above, wave height can be considerably less than the 40% of LWL, or about 8 feet, and get you into deep doodoo.Your attack on the waves is also important, a broad reach allws more control than beating into them, esp. with reduced sailplans. I suggest you test it out with the hatchway closed and a lifeline on, the little boat will likely surprise you.