Some notes on the 2009 Atlantic Hurricane Season from the Tropical Meteorology Project team at Colorado State University:
…It was a late starting season. Ana was the latest “A” storm (August 15) since Andrew (August 17, 1992)
…9 named storms fewest since 1997, when there were 8
…27.25 named storm days, the lowest since 1991 (24.25)
…3 hurricanes is the least since 1997, when there were also 3
…Only 2 major hurricanes…last year that happened was 1997
…Second consecutive season with no category five hurricanes
…August 2009 actually was an active month, with 29 Accumulated Cyclone Energy units (125% of normal)
…Quietest September since 1994
…No tropical cyclone activity during the three climatologically most active weeks (Sept 13-October 4)….hasn’t happened since 1991 and only one time before that (1925)
…Quietest October since 1994
…Hurricane Bill was responsible for 52% of the ACE units for the year, the highest percentage from one storm since 1997
…Ida was the second latest tropical cyclone to make landfall along the Gulf Coast
…No landfalling U.S. hurricanes. Has only happened 13 times in last 66 years.
…There were 7 major hurricane landfalls in the U.S. in 2004-05. There has not been one since.
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