Typhoon Hagibis brings vivid purple sky to parts of Japan


About Typhoon
A typhoon is a mature tropical cyclone that develops between 180° and 100°E in the Northern Hemisphere. This region is referred to as the Northwestern Pacific Basin, and is the most active tropical cyclone basin on Earth, accounting for almost one-third of the world’s annual tropical cyclones. For organizational purposes, the northern Pacific Ocean is divided into three regions: the eastern (North America to 140°W), central (140°W to 180°), and western (180° to 100°E). The Regional Specialized Meteorological Center (RSMC) for tropical cyclone forecasts is in Japan, with other tropical cyclone warning centers for the northwest Pacific in Hawaii (the Joint Typhoon Warning Center), the Philippines and Hong Kong. While the RSMC names each system, the main name list itself is coordinated among 18 countries that have territories threatened by typhoons each year.Within the northwestern Pacific, there are no official typhoon seasons as tropical cyclones form throughout the year. Like any tropical cyclone, there are a few main requirements for typhoon formation and development: (1) sufficiently warm sea surface temperatures, (2) atmospheric instability, (3) high humidity in the lower to middle levels of the troposphere, (4) enough Coriolis effect to develop a low pressure center, (5) a pre-existing low level focus or disturbance, and (6) a low vertical wind shear. While the majority of storms form between June and November, a few storms do occur between December and May (although tropical cyclone formation is at a minimum during that time). On average, the northwestern Pacific features the most numerous and intense tropical cyclones globally. Like other basins, they are steered by the subtropical ridge towards the west or northwest, with some systems recurving near and east of Japan. The Philippines receive the brunt of the landfalls, with China and Japan being impacted slightly less. Some of the deadliest typhoons in history have struck China. Southern China has the longest record of typhoon impacts for the region, with a thousand-year sample via documents within their archives. Taiwan has received the wettest known typhoon on record for the northwest Pacific tropical cyclone basins.

Typhoon Hagibis brings vivid purple sky to parts of Japan

About Hagibis
Hagibis (meaning rapidity or speed in Tagalog) is one of the first comic book heroes in the history of komiks in the Philippines. Hagibis was created in 1947 by Francisco V. Coching, a Filipino comic book artist and illustrator who is considered as the “father” or “grandfather” of Filipino komiks. Tarzan-like in appearance, the form of Hagibis had also been based on another early Filipino comic book hero, namely Kulafu who was created by another pioneer Filipino comic book artist, Francisco Reyes. Hagibis became one of the longest running serials in the history of Filipino comic books, which was featured for fifteen years in the pages of Liwayway magazine. An example story about Hagibis that appeared in Liwayway magazine was Si Hagibis sa Ibang Daigdig (Hagibis in Another World). Sequels in komiks to the Hagibis series were Anak ni Hagibis (Child of Hagibis) and Si Gat Sibasib (Gat Sibasib). Hagibis was later made into a film with Fernando Poe, Sr. acting as Hagibis.

Earthquake strikes Tokyo as typhoon hits

As people in Japan braced for a powerful typhoon Friday night, they looked up to see a strange phenomenon: a bright purple sky. Typhoon Hagibis brought heavy rain and strong winds to the region and is expected to be Japan’s worst in six decades.

Typhoon Hagibis brings vivid purple sky to parts of Japan

The typhoon touched down southwest of Tokyo on Saturday. An earthquake shook the area shortly before landfall.

As hundreds of thousands of people were ordered to evacuate, residents posted images of the bright purple and pink sky on social media.

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“Beautiful sky in Japan before the typhoon. Looks peaceful but it’s actually an indicator that the storm is coming #PrayForJapan,” one Twitter user wrote. 

The phenomenon has occurred several times in the U.S. following major hurricanes. Meteorologists say the beautiful skies are a result of “scattering.” 

“As sunlight shines down to Earth, most of the colors of the spectrum are able to reach the surface uninterrupted,” meteorologist Lauren Rautenkranz explained after Hurricane Michael in 2018. “But the shorter wavelengths, blue and violet, are scattered in every direction. This light bounces from particle to particle until it eventually reaches your eyes. But the sky doesn’t appear violet and blue because of our eyes’ limitations.”

Under normal conditions, our eyes can only detect blue, but during a storm, purple can sometimes become visible. 

“The light was scattered around the moisture in the air, causing the magical purple color,” she said. 

The storm is far from over. Flooding was reported Saturday south of Tokyo. Rivers have swelled and boats have flipped. Mudslide warnings have also been issued.

At least one person is confirmed dead. A man died after a tornado flipped over his car.

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