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Lance Cpl. David Lightsey, a Meteorology and Oceanography forecaster with the Marine Corps Air Station Iwakuni Weather Services Branch, observes a tropical cyclone brief for a Typhoon Ready Exercise aboard MCAS Iwakuni, May 15, 2014. In preparation for Typhoon Season, United States Forces Japan conducted the TR Exercise to increase tropical cyclone preparedness, evaluate notification procedures as well as responding procedures and also to raise public awareness. - Lance Cpl. David Lightsey, a Meteorology and Oceanography forecaster with the Marine Corps Air Station Iwakuni Weather Services Branch, observes a tropical cyclone brief for a Typhoon Ready Exercise aboard MCAS Iwakuni, May 15, 2014. In preparation for Typhoon Season, United States Forces Japan conducted the TR Exercise to increase tropical cyclone preparedness, evaluate notification procedures as well as responding procedures and also to raise public awareness.