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Concentric eyewalls seen in Typhoon Haima as it travels west across the Pacific Ocean.. In meteorology, eyewall replacement cycles, also called concentric eyewall cycles, naturally occur in intense tropical cyclones with maximum sustained winds greater than 33 m/s (64 kn; 119 km/h; 74 mph), or hurricane-force, and particularly in major hurricanes of Saffir–Simpson category 3 to 5.
Typhoon Parma (left) and Melor (right) interacting with each other in the Philippine Sea on October 6, 2009.. The Fujiwhara effect, sometimes referred to as the Fujiwara effect, Fujiw(h)ara interaction or binary interaction, is a phenomenon that occurs when two nearby cyclonic vortices move around each other and close the distance between the circulations of their corresponding low-pressure areas.
Weirdly enough, every hurricane you see spins counterclockwise, and you’ll never see one in the Southern Hemisphere. In fact, in the United States, this is the one city that has the highest ...
A tropical cyclone is the generic term for a warm-cored, non-frontal synoptic-scale low-pressure system over tropical or subtropical waters around the world. [4] [5] The systems generally have a well-defined center which is surrounded by deep atmospheric convection and a closed wind circulation at the surface. [4]
The term "cyclone" refers to the storms' cyclonic nature, with counterclockwise rotation in the Northern Hemisphere and clockwise rotation in the Southern Hemisphere. [46] Depending on their location and strength, tropical cyclones are referred to by other names, such as hurricane , typhoon , tropical storm , cyclonic storm , tropical ...
The latest disinformation swirling the hurricanes have pointed to Project STORMFURY, an effort whereby U.S. government attempted "human interference and hurricane modification" during the Cold War.
Back in World War 2, the idea of weakening a hurricane with nuclear bombs was first floated around, “but the equivalent energy in a hurricane dwarfs anything we can do with nuclear weapons ...
Winds circle anti-clockwise around lows in the northern hemisphere, and clockwise in the southern hemisphere, due to opposing Coriolis forces. Low-pressure systems form under areas of wind divergence that occur in the upper levels of the atmosphere (aloft). The formation process of a low-pressure area is known as cyclogenesis.