Hi Bob, When facing a tropical storm you should take the spinnaker out of the snuffer and store it off the boat. In fact, you should take the snuffer off the boat also. As long as your at it, you should take the boat apart and store it somewhere safe too! When not facing tropical storms, you should be sure that the spinnaker is not being affected by UV light exposure (as it would be inside a solid colored bag, for example). If it is inside a mesh bag or has other exposure, then take it out whenever you are done sailing. A spinnaker will get a tie dyed look pretty quickly from UV exposure and the cloth will rapidly deteriorate.