Annular hurricane
An annular hurricane is a term used in the north Atlantic Ocean and northeastern Pacific Ocean east of the International Dateline. An annular hurricane is a rare type of hurricane that has a big, circular eyewall, and thick, deep convection around it with no spiral rainbands. This structure allows the hurricane to maintain its strength for longer durations, and in worse conditions than typical hurricanes.
Annular Hurricane Media
Satellite image of Hurricane Isabel of 2003, displaying a large, circular, and symmetric eye, and symmetrical storm shape, which are characteristics of annular tropical cyclones. Isabel is also exhibiting a pinwheel eye, a rare feature found in some annular tropical cyclones.
Typhoon Surigae of 2021 displaying annular characteristics
Typhoon Noru of 2017, displaying most of annular characteristics
