WASHINGTON -- WASHINGTON (AP) — Typhoon Kalmaegi has killed astatine slightest 114 radical successful the Philippines with adjacent much missing and past deed Vietnam Friday. A 2nd typhoon, Fong-Wong, is forecast to deed the Philippines astir Sunday and fortify to a large tempest by that time.
Some facts astir typhoons:
They’re each the aforesaid — officially, tropical cyclones. But they get antithetic names successful antithetic parts of the world. Hurricane is utilized successful the Atlantic, Caribbean Sea, cardinal and northeast Pacific. They are typhoons successful the northwest Pacific. In the Bay of Bengal and the Arabian Sea, they are called cyclones.
Tropical cyclone is utilized successful the southwest India Ocean; successful the southwestern Pacific and southeastern India Ocean, they are terrible tropical cyclones.
A tempest gets a sanction and is considered a tropical tempest astatine 39 mph (63 kph). It becomes a hurricane, typhoon, tropical cyclone, oregon cyclone astatine 74 mph (119 kph). There are 5 spot categories, depending connected upwind speed. The highest class is 5 and that’s supra 155 mph (249 kph). Australia has a antithetic strategy for categorizing tempest strength.
Kalmaegi is connected the stronger broadside of typhoons, experts said. Its maximum winds successful the Philippines reached 132 mph (213 kph), including sustained winds connected the crushed of 93 mph (150 kph).
The highest tropical cyclone winds recorded were successful 2015's Hurricane Patricia successful the eastbound Pacific, portion Typhoon Tip successful 1979 had the lowest barometric pressure, which is simply a cardinal measurement that meteorologists use.
If they are northbound of the equator they rotate counterclockwise. If they are south, they rotate clockwise.
The Atlantic and cardinal Pacific hurricane seasons are June 1 done Nov. 30. Eastern Pacific is May 15 to Nov. 30; northwestern Pacific play is astir each year, with the astir from May to November. The cyclone play successful the southbound Pacific and Australia runs from November to April. The Bay of Bengal has 2 seasons, April to June and September to November.
Vietnam tends to get landfalling typhoons astir this clip of year.
The northwestern Pacific wherever Typhoon Kalmaegi deed is the busiest spot connected Earth due to the fact that of the year-round lukewarm water, anemic upper-level crosswinds and predominant thunderstorm enactment that tin supply the seeds for storms to form, said Kristen Corbosiero, a prof of atmospheric and biology sciences astatine the University astatine Albany.
By this clip of year, the Northwest Pacific averages 23 named storms, 14 of which go typhoons, according to Colorado State University's tempest database. A mean twelvemonth determination involves 27 named storms. Kalmaegi and Fung-Wong are the 26th and 27th named storms, with Kalmaegi the 15th typhoon. While determination are somewhat much storms than normal, Corbosiero said this has been mostly a weaker season. The measurement that meteorologists use, which combines tempest strength, frequence and duration, shows this play is lone 62% of mean truthful far. Kalmaegi is the fourth-strongest typhoon this season.
By examination the Atlantic averages 14 named storms a twelvemonth and this twelvemonth determination person been 13, with the past one, Hurricane Melissa, causing large demolition successful Jamaica and Cuba.
Because the Northwest Pacific has lukewarm capable h2o to substance storms practically year-round, the cardinal often is storminess successful the ambiance to commencement thing going, Corbosiero said. In this lawsuit — and galore others — it's an atmospheric disturbance called the Madden-Julian Oscillation, often called the MJO. This is simply a earthy strategy successful the tropics that starts astir the Indian Ocean and moves eastward, expanding rainfall and storminess up of it and suppressing thunderstorm enactment down it. It tin ellipse the globe successful 30 to 60 days.
A beardown MJO tin trigger tropical cyclone activity. It did that this summertime successful the Northwest Pacific but past benignant of unopen down arsenic the oscillation moved east, Corbosiero said. But a beardown 1 conscionable moved through, helping with these storms' formation, she said.
That MJO is present astir the planetary dateline astir a week-and-a-half to 2 weeks distant from the Atlantic, wherever it could assistance spawn precocious play tropical storms, she said.
The lists are maintained by the World Meteorological Organization; the names are ones that are acquainted successful each region. Names are taken disconnected the database and replaced to debar disorder if a hurricane causes a batch of harm oregon deaths. For example, Katrina was retired aft it devastated New Orleans successful 2005. The Philippines has its ain naming system, truthful Typhoon Kalmaegi is besides being called Tino.
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SOURCES: Colorado State University, University astatine Albany, Joint Typhoon Warning Center, World Meteorological Organization, National Oceanic and Atmospheric Administration, Weather Underground.
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