The most powerful typhoon of the 2013 season approached the northern Philippines and southern Taiwan on Friday (Sept. 20) with wind reaching 300 kph (184 mph) and torrential rain. POTENTIAL DISASTER AGENTS OF USAGI:
* Usagi has a diameter of 1,100 kilometers (660 miles), with outer rain bands extending across the main northern Philippine island of Luzon and southern Taiwan.
* Forecasters predict 24-hour rainfall accumulation of 500 millimeters (nearly 20 inches) near its center.
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