Annular hurricanes have a large, symmetric eye surrounded by a ring of intense convection, with hardly any convection (i.e. bands) elsewhere. These types of storms are not prone to fluctuations in intensity related to the eyewall replacement cycles typically seen in intense tropical cyclones.
Statistics show that forecasters significantly underestimate the wind velocities following the time when the hurricane peaks. The errors occur because this type of hurricane maintains intensity longer than usual.
Less than 1% of Atlantic cyclones exhibit annular characteristics.
So if I read this right, then we should expect this to not weaken as advertised.
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