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Enviroment

Hurricane? cyclone? typhoon? What is the difference

Hurricane? cyclone? typhoon? They are all the same, officially tropical cyclones. But they just use distinctive terms for a storm in different parts of the world. Hurricane is used in the Atlantic, Caribbean Sea, central and northeast Pacific. They are typhoons in the northwest Pacific. In the Bay of Bengal and the Arabia Sea, they are called cyclones. Tropical cyclone is used in the southwest India Ocean; in the southwestern Pacific and southeastern India Ocean they are severe tropical cyclones.

How do you determine the strength of a tropical Strom?

Strength: A storm gets a name and is considered a tropical storm at 39 mph (63 kph). It becomes a hurricane, typhoon, tropical cyclone, or cyclone at 74 mph (119 kph). There are five strength categories, depending on wind speed. The highest category is 5 and that’s above 155 mph (249 kph). Australia has a different system for categorizing storm strength

What way do hurricanes rotate?

If they are north of the equator they rotate counterclockwise. If they are south, they rotate clockwise.

When are the active cyclone seasons?

The Atlantic and central Pacific hurricane seasons are June 1 through Nov. 30. Eastern Pacific: May 15 to Nov. 30; northwestern Pacific season is close to all year, with the most from May to November. The cyclone season in the south Pacific and Australia runs from November to April. The Bay of Bengal has two seasons April to June and September to November

Where do most Typhoons Hit?

The northwestern Pacific where Typhoon Haiyan has just hit. A normal year there involves 27 named storms. Haiyan is the 28th named storm and there has already been a 29th. By comparison the Atlantic averages 11 named storms a year and this year there have been 12, none of them causing major problems.

Who decides the name of a hurricane?

Where is the busiest place? The northwestern Pacific where Typhoon Haiyan has just hit. A normal year there involves 27 named storms. Haiyan is the 28th named storm and there has already been a 29th. By comparison the Atlantic averages 11 named storms a year and this year there have been 12, none of them causing major problems.

How does El Nino affect storms?

During an El Nino – when the central Pacific is warming – there are fewer Atlantic storms. El Ninos shift where storms form, but not the number, for the northwest Pacific and the southwest Pacific. The central Pacific gets more storms during El Nino and the year after. This year has neither an El Nino nor its opposite, a La Nina. It is a neutral year.

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