251 F107plus5 9 months ago Proving my point even more....Where are all these "Cat 5's every 3 or 4 years" F107 is talking about? In his mind? Rule of thumb: there is a cat 4 or 5 on average every 3 or 4 years. We might go a buncha years and not get any, we may go a year or two with two or three. El Nino and La Nina weather patterns historically help control the numbers of storms as well. Thanx to global warming driven Climate Change, the number of total storms seems to be going .....down(!) However, due to warming of the Seas and warming of the Air, storms are getting stronger and will continue to get stronger with increasing temperatures. This isn't Rocket Science. Hot water makes stronger storms, warmer air contains more moisture. It is what it is. We've had 19 cat 5s since the year 2000. 11 in the Atlantic. And 24 cat 4 in the Atlantic.