Latest Hurricane Stats From NOAA
By Paul Homewood
NOOA’s National Hurricane Centre keep records of all US landfalling hurricanes, starting in 1851. The decadal numbers are shown below, including 2012, which recorded two Cat 1’s, Isaac and Sandy.
Number of US Landfalling Hurricanes
Figures 1&2 show the annual distribution of all hurricanes and major Cat 3+ ones, along with a 10-year running average.
Despite the busy seasons in 2004 and 2005, the 10 year trends show no increase since, and are not unusually high by historical standards. It is also perhaps significant that, despite these two years, current decadal averages for Cat 4 and Cat 5 storms are below average. This surely gives the lie to the claim that hurricanes are becoming more intense.
Remember, as well, that we are in the middle of the warm phase of the Atlantic Multidecadal Oscillation, or AMO. NOAA have this to say:-
During warm phases of the AMO, the numbers of tropical storms that mature into severe hurricanes is much greater than during cool phases,at least twice as many. Since the AMO switched to its warm phase around 1995, severe hurricanes have become much more frequent and this has led to a crisis in the insurance industry.
The busy hurricane seasons of the 1940’s and 50’s clearly correlate with the warm phase of the AMO, just as the quieter years in the 1970’s and 80’s do with the cold phase.