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Frequency of Hurricanes <br /> Continental United States <br /> During the'70s,'80s and'90s,major hurricanes striking the United States were less frequent than the previous three <br /> decades.With the tremendous increase in population along the high-risk areas of our shorelines,the United States <br /> may not fare as well in the future.Some hurricane experts think the frequency of major hurricanes making landfall in <br /> the United States will increase over the next few decades. <br /> Central North Pacific <br /> In the central North Pacific basin,tropical cyclone frequency has varied from a low of zero tropical cyclones in 1960, <br /> 1964,1977,and 1979 to a high of 11 in 1992 and 1994. While there are changes in tropical cyclone frequency over a <br /> period of decades,there is no clear,long-term trend. Increase tropical cyclone activity in the basin appears tied to the <br /> El Nino phenomenon,which is marked by an increase in sea surface temperatures along the equatorial regions of the <br /> central and eastern Pacific Ocean. Since 1971,4 of the 5 most active central Pacific hurricane seasons are associated <br /> with El Nino years. <br /> In the final analysis,the only real defense against hurricanes is the informed readiness of your community,your family <br /> and YOU. <br /> Central Pacific Tropical Cyclones 1971-2009 <br /> 12 <br /> 11 1'1 <br /> 10 <br /> 10 — <br /> 9 <br /> 8 <br /> 8 <br /> 7 7 7 7 <br /> E <br /> `o <br /> 6 6 <br /> 0 5 <br /> 5 5 5 5 5 <br /> z <br /> 4 4 4 4 <br /> 3 — — — — <br /> 3 3 3 3 3 3 <br /> 2 2 2 2 <br /> 1 1 <br /> � 0 a <br /> 10 <br />