Meteorologist Dr. Ryan Maue has released the latest hurricane frequency data updated through September 2012 showing a continuation of depressed global major hurricane numbers.
Still going down, global major hurricane numbers during last 12-months: 15 (hint, it’s negative PDO climate change)
The data since 1978 with trends:
The Accumulated Cyclone Energy (ACE) for the North Atlantic for this year compared to other years — the season just went over 100 with long-lived fish-storm Nadine. During the last 30-years, the season has averaged an ACE of about 104. However, with recent unfavorable MJO conditions, Nadine was the only show in town (helpful when GOES-13 is on the fritz).
The Accumulated Cyclone Energy dissipated by tropical cyclones worldwide this year (2012) is near-normal across the board from the Northern Hemisphere, and was below normal for the Southern Hemisphere during the last season (Fall 2011-Spring 2012). Globally, ACE is below normal for this year.
See more at Maue’s website here.