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    Introduction to Tropical Cyclone Warning for Shipping

    Tropical Cyclone Warning for Shipping Bulletin

    Warning area Broadcast medium Broadcast schedule Contents
    10-30N and 105-125E. Warning is prepared by the Hong Kong Observatory at 3 hourly intervals whenever a tropical cyclone is located within the warning area. NAVTEX* via Hong Kong Coast Radio Station. Broadcast on receipt and is repeated at the following time schedules: 0150, 0550, 0950, 1350, 1750 & 2150 Co-ordinated Universal Time (UTC)**.
    1. Position and intensity of tropical cyclone;
    2. Movement of tropical cyclone;
    3. Maximum wind speed near tropical cyclone centre;
    4. Wind and wave conditions associated with tropical cyclone;
    5. 24-hr and 48-hour forecast positions of tropical cyclone.

    * NAVTEX is an international broadcast system for disseminating navigational information by the coastal radio station for ships plying in the region.

    ** Hong Kong Time is eight hours ahead of Co-ordinated Universal Time (UTC).

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