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The central dense overcast, or CDO, of a tropical cyclone or strong subtropical cyclone is the large central area of thunderstorms surrounding its circulation center, caused by the formation of its eyewall. It can be round, angular, oval, or irregular in shape. This feature shows up in tropical cyclones of tropical storm or hurricane strength.
In strong tropical cyclones, the eye is characterized by light winds and clear skies, surrounded on all sides by a towering, symmetric eyewall. In weaker tropical cyclones, the eye is less well defined and can be covered by the central dense overcast, an area of high, thick clouds that show up brightly on satellite imagery. Weaker or ...
“Satellite images show an expanding central dense overcast feature, and recent microwave images indicate that a partial eyewall has formed.” Here’s what you need to know about Hurricane Beryl .
Both the central dense overcast and embedded eye pattern utilize the size of the CDO. The CDO pattern intensities start at T2.5, equivalent to minimal tropical storm intensity (40 miles per hour (64 km/h)). The shape of the central dense overcast is also considered. The farther the center is tucked into the CDO, the stronger it is deemed. [11]
More rainfall falls in advance of the center of the cyclone than in its wake. The heaviest rainfall falls within its central dense overcast and eyewall. Slow moving tropical cyclones, like Hurricane Danny and Hurricane Wilma, can lead to the highest rainfall amounts due to prolonged heavy rains over a specific location.
The stormy weather will continue into Halloween for part of the Central states, resulting in some trick-or-treaters needing to put a rain jacket over their costumes. Want next-level safety, ad-free?
Portions of east-central through south-central Wisconsin are under a dense fog advisory, according to the National Weather Service in Sullivan. The Tuesday morning commute is expected to be slower ...
A mesoscale convective system's overall cloud and precipitation pattern may be round or linear in shape, and include weather systems such as tropical cyclones, squall lines, lake-effect snow events, polar lows, and mesoscale convective complexes (MCCs), and generally forms near weather fronts. The type that forms during the warm season over ...