Typhoon Nanmadol (2004)
| Typhoon (JMA scale) | |
|---|---|
| Category 4 (Saffir–Simpson scale) | |
Nanmadol near peak intensity and approaching landfall on December 2
|
|
| Formed | November 28, 2004 |
| Dissipated | December 4, 2004 |
| (Extratropical after December 4) | |
| Highest winds |
10-minute sustained: 165 km/h (105 mph) 1-minute sustained: 240 km/h (150 mph) |
| Lowest pressure | 935 hPa (mbar); 27.61 inHg |
| Fatalities | 77 |
| Damage | $60.8 million (2004 USD) |
| Areas affected | Philippines, Taiwan, China |
| Part of the 2004 Pacific typhoon season | |
Typhoon Nanmadol, known in the Philippines as Typhoon Yoyong, was the last of four consecutive tropical cyclones to strike the Philippines in 2004. A quickly moving system, Nanmadol brought heavy rainfall and strong winds over the same regions impacted by the previous storms, exacerbating flood conditions in Luzon and surrounding regions. Together Nanmadol and these systems accounted for around 1,000 deaths in the Philippines. The typhoon later became the first December tropical cyclone to strike Taiwan since record keeping began, bringing along with it heavy rain, which also affected nearby regions of eastern China. As an extratropical storm, Nanmadol brought gusty winds and rain to Japan.
Nanmadol developed from an isolated area of convection south-southwest of Pohnpei that became classified as a tropical depression on November 28. Within highly conducive conditions for development, the system reached tropical storm intensity the following day, followed by typhoon intensity on November 30. Quickly pacing towards the north-northwest about the periphery of a nearby subtropical ridge, Nanmadol reached its peak intensity on December 1 with winds of 165 km/h (105 mph) and a minimum barometric pressure of 935 mbar (hPa; 27.61 inHg). Shortly after, the typhoon made landfall at a similar intensity on Casiguran, Aurora, quickly moving over Luzon before reaching the South China Sea, where it recurved northward into hostile atmospheric conditions. Over the next few days, Nanmadol weakened and later transitioned into an extratropical cyclone near Taiwan on December 4, whereafter it merged with another extratopical system.
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