Tag: Super typhoon

Elsewhere in Weather News: July 19th, 2014

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Another Super Typhoon Spins Up in the Western Pacific

The Western Pacific Ocean has been very active in the past few weeks, churning up numerous typhoons including its most recent – super typhoon Rammasun. Rammasun made landfall at least twice; once in the Philippines and China, respectively, during its trek across the Western Pacific.

The first landfall occurred southeast of Manila, Philippines, where it brought with it winds of 185km/h. Many precautions were taken ahead of this storm in the Philippines as it was the first typhoon to hit the country since super typhoon Haiyan. Over 500,000 people decided to ride out the storm in evacuation centres and plenty of warning (3 days) was given to residents before the typhoon made landfall. Despite the warnings, many homes could not be saved – as many as 7,000 as reported by authorities. Unfortunately 38 people died due to the typhoon in the Philippines.

After making landfall in the Philippines, Rammasun quickly strengthened with help from the very warm sea surface temperatures (SSTs) that approached 30°C in the South China Sea. With these warm SSTs conditions were primed for the storm to reorganize. Rammasun quickly developed a well-defined eye and became a super typhoon (category 4) as it approached China for a second landfall. The typhoon made landfall on Friday morning with sustained winds of 250km/h gusting to 280km/h on one of China’s southern provinces; Hainan. All modes of damage were possible with a storm of this intensity; including flooding rains, landslides and severe storm surge. It is still unclear how the region is doing in the aftermath of the storm as of Friday night. A report of 178mm of rain in the coastal city of Haikou (pop. 900,000) in 6 hours on Friday combined with expected storm surges of 20 feet in the general area made for big flooding/landslide concerns. Rammasun is expected make a turn for China’s mainland and die off this weekend, but not before bringing widespread torrential rains to the region.

IR image of Rammasun just before it made its second landfall. (Source: NASA/NOAA)
IR image of Rammasun just before it made its second landfall. (Source: NASA/NOAA)

More tropical storms are expected to spin up this week with possibilities in both the Atlantic and Western Pacific as depicted by some models. The strength or paths of these are uncertain.

Elsewhere in Weather News: September 21st, 2013

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Super Typhoon Usagi Takes Aim at Hong Kong

The strongest typhoon of the year up to date has formed in the Pacific and is taking aim at Hong Kong. Super typhoon Usagi is currently located in the Luzon Strait between Taiwan and the Philippines and is moving in a west north-westerly fashion. Thursday and Friday morning, Usagi was packing sustained winds of around 260km/h – considered category five strength. It has since slightly weakened but is still a dangerous category four super typhoon as it eyes (no pun intended) Hong Kong and the southern coast of China.

Usagi

Awesome image of Usagi Thursday afternoon. (Source: Colorado State University/Capital Weather)

This super typhoon is not only a very powerful typhoon but also a very large one; its diameter reaching over 1,000km. A very distinct eye could be seen on satellite as well as more than one eyewall present; it is not as common for a tropical system to have more than one eyewall, though it does happen with storms of category three or higher.

Usagi is expected to make landfall sometime on Sunday along the south China shores. Its impacts remain to be seen though, with seas expected reaching 10 meters in the South China Sea all vessels will have to steer clear or dock. Another concern is the rainfall; already copious amounts of rain have fallen in Taiwan, especially on its east coast where about a meter of rain was not out of the question before the weekend’s end.

In addition to Usagi, a second typhoon is expected to form this weekend behind (to the east) of Usagi, it will be named Pabuk. Although still a ways out, Pabuk has a good chance at becoming a severe typhoon due to the warm sea surface temperatures and low shear in the area. Currently, the models show Pabuk reaching the eastern shores of Japan but then quickly curving back out to sea – this would suggest minimal impacts to Japan.