2009 Hurricane Season ending

Florida Beach

The 2009 hurricane season officially ends November 30. This hurricane season fits the mold of the long term averages. For the 2009 season there were 10 named storms of which 3 became hurricanes and of those 2 major hurricanes. A category 3 or higher on the Saffir_Simpson scale is considered major.

In the Atlantic basin, long term averages show that there are about 10 named storms of which 6 become hurricanes and 3 of those major hurricanes. Since 1995 there has been a major upswing in tropical cyclone activity. During this period there has been an average of 15 named storms of which 8 became hurricanes and 4 of those major hurricanes.

The return of El Nino was the likely cause in the decrease in tropical cyclone activity, especially affecting the number of hurricanes that formed. The El Nino causes an increase in wind shear which creates a hostile environment for hurricane development in gerneral.

Rich Johnson – Tropicalweather.net

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