slow all over
Posted by CypressTX on 7/26/2009, 12:14 pm
from: http://www.coaps.fsu.edu/~maue/tropical/



Figure: 24-month running sums of tropical cyclone ACE for a combination of basins of the Northern Hemisphere. The Western North Pacific, Eastern North Pacific, and the Northern Indian Ocean typically sees more activity than the Eastern Pacific and North Atlantic combined. However, during the strong La Nina event of 1998-1999, the very quiet WPAC TC activity was exceeded by the NATL and EPAC combined. The two time series are correlated at R = 0.56 but of course are not independent.

Update: July 22, 2009 including dissipated TYPHOON Molave in the WPAC
On the heels of the record inactive years of 2007 and 2008, current 2009 activity has fallen well behind the pace of the previous 2-years. The ACE to date is the lowest since 1998 and only 40% of the previous 10-year average. Record inactivity continues and has so far shown no signs of abating.
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Spaceweather - Mike_Doran, 7/24/2009, 10:36 am
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