This is a graph of worldwide hurricane activity through September 30th. After a peak in 2005, the year of Katrina, and forecasts of an extremely active Atlantic hurricane season, activity is falling to the lowest since the index was created in 1979 (when adequate satellite coverage made the index possible). Click to enlarge graph. More information is here.
While meteorology has made tremendous strides at storm warnings and short-term forecasts, we have a very long way to go with even seasonal forecasts such as those made for the 2010 hurricane season.
All the more reason that 30 year forecasts of ‘global warming’ should be taken with a large grain of salt.