July 6, 2005. UNISYS. Hemispheric Water Vapor. All the storms on land or making landfall of the USA are 'eddies' off the polar vortex. 'Dennis' should be interesting. It's actually attached to a system not connected to the 'Cindy' system. With increased velocity 'Dennis' could become a more traditional hurricane but only difference manifesting from equatorial aire over South American rather than Africa.