Cyclones that are Totally exposed:Tropical Depression 13w

Cyclones often have exposed centers, but some rare cyclones like TD 13w, are totally exposed-including the center and the sides!!!This happen because the circulation is too low level and upper wind shears are high. 

Tropical Depression 13w 

History:On August 4, a Large Tropical Wave developed near the island of Micronesia,and move west, were it separated into two Tropical Waves,and one of the Tropical Wave move towards Guam,and developed a Low level Circulation.Late on August 8, the JMA upgraded a low pressure area to a tropical depression west of Guam, and the JTWC issued a TCFA.On August 10, the 13w's circulation center was exposed due to a High pressure nearby.But soon the center wasn't exposed due to lower wind shears on August 12,and soon it produced large thunderstorms.The system was soon caught in a Cold front and dissipated completely on August 15  

Tropical Depression 13w with a exposed center

Tropical Depression 13w with a Totally exposed center and system:

Tropical Depression 13w after being upgraded into a Tropical depression 

Tropical Depression 13w at it's peak intensity.