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Hurricane Catarina was an extraordinarily rare hurricane-strength tropical cyclone, forming in the southern Atlantic Ocean in March 2004. [13] Just after becoming a hurricane, it hit the southern coast of Brazil in the state of Santa Catarina on the evening of 28 March, with winds up to 140 kilometres per hour (87 mph) making it a Category 1 ...
The coriolis force caused by the Earth's rotation is what gives winds within high-pressure systems their clockwise circulation in the northern hemisphere (as the wind moves outward and is deflected right from the center of high pressure) and counterclockwise circulation in the southern hemisphere (as the wind moves outward and is deflected left ...
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]
To put it in perspective, picture yourself standing on the equator, directly south of New York City. In fact, in the United States, this is the one city that has the highest hurricane risk.
There is no time of year more likely for a tropical system to be spinning in the Atlantic than Sept. 10, which is the climatological peak of the Atlantic Hurricane Season. Around 50% of all ...
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.
Hurricane winds rotate counterclockwise, so the strength of the storm on the dirty side equals hurricane’s wind speed plus its forward velocity, reporting in The Miami Herald said.
Atlantic tropical storm and hurricane frequency, by month [27] Approximately 97 percent of tropical cyclones that form in the North Atlantic develop between June 1 and November 30, which delimit the modern-day Atlantic hurricane season. Though the beginning of the annual hurricane season has historically remained the same, the official end of ...