Hurricane Danny fizzles: Why are there fewer big hurricanes?
The US is in a historic hurricane drought, according to NOAA’s Climate Prediction Center. The fading of Hurricane Danny, which peaked as a Category 3 storm over the Atlantic, came as no surprise Saturday...Indeed, a 9-year “drought” in Category 3 or greater storms that reach land is unmatched by any stretch since at least 1850, according to a 2015 NASA study.
http://m.csmonitor.com/USA/2015/0822/Hurricane-Danny-fizzles-Why-are-there-fewer-big-hurricanes
Unusually high atmospheric wind shear caused by a historic El Nino event in the Pacific, cooler than normal Atlantic water temperatures, air pressure differentials between the Atlantic and the East Pacific, and even dust from Saharan sand storms all play into dynamics that affect the easterly African weather waves that sometimes curl into Atlantic hurricanes.