New research published in the journal Science shows that in recent years, hurricanes are strengthening closer to land now than in the 1980s when their data set began. They are also forming farther north and west than they used to, possibly due to the expansion of the tropics under a warmer climate, although it could also be due to long-term climate variability (or a combination of the two). The shift in the formation of the hurricanes means that coastal communities without much experience in dealing with hurricanes could be increasingly affected by tropical storms and hurricanes, although there is no trend towards more landfalls at hurricane strength. You can read more in Scientific American here.