10 Facts About Typhoon Rammasun

Typhoon Rammasun, known in the Philippines as Typhoon Glenda, was one of the only three Category 5 super typhoons on record in the South China Sea, with the other ones being Pamela in 1954 and Rai in 2021.

The ninth named storm and the third typhoon of the annual typhoon season, Rammasun formed in the Intertropical Convergence Zone, an area near the equator where the northeast and southeast trade winds come together, and slowly drifted northwest.

Typhoon Rammasun only made landfall on Guam as a tropical depression, with winds much weaker than earlier anticipated.

At around 17:00 Philippine Standard Time, Typhoon Rammasun's eye passed directly over Rapu-Rapu, Albay while the storm was at its initial peak intensity.

Later that day as Typhoon Rammasun moved westwards under the influence of the subtropical ridge of high pressure, the JTWC reported that it had regained tropical storm status after Dvorak estimates from various agencies supported it and the low level structure of the system had improved.

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Typhoon Rammasun tracked in a westerly direction along the periphery of the steering subtropical ridge.

Consequently, Rammasun rapidly deepened and was upgraded to a Category 4 super typhoon by the JTWC, which was upgraded to Category 5 in post-season reanalysis.

Later that day, Rammasun made landfall over Hainan at peak intensity, making it one of only two typhoons to make landfall at Category 5-equivalent intensity in China.

Typhoon Rammasun affected the nearby provinces of Haiphong, Thai Binh, and Nam Ðinh.

Typhoon Rammasun commanded the army to install its forces in the areas for possible search and rescue operations.