Cold Weather & Frost Warnings

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Cold Weather Warning

This Cold Weather Warning was newly introduced on 16 December 1999 to replace the occasional special announcements on cold weather issued in the past.. The warning aims at enhancing the public's awareness of the impacts of cold conditions.

Hong Kong experiences cold season. A close watch on the local temperature changes is maintained. Whenever Hong Kong is threatened by cold weather, Cold Weather Warning will be issued to alert members of the public to the danger of low body temperature due to cold weather.

When the Cold Weather Warning is in force, it is expected that the temperature will drop or has already dropped to or below 12 degrees Celsius in the urban areas in Hong Kong. And probably, Hong Kong is expected to be continuously affected by cold weather in the next few days.

Once issued, the warning is broadcast over radio and television. If cold weather persists, the special announcements will be repeated while the warning is in force, to remind the public to take necessary actions.

Points to Note:

  • Members of the public are advised to put on warm clothes and be aware of low body temperature due to the cold weather.
  • If you must go out, please avoid prolonged exposure to wintry winds.
  • If you know of elderly or persons with chronic medical conditions staying alone, please call or visit them occasionally to check if they need any assistance.
  • Make sure heaters are safe before use, and place them away from any combustibles.
  • Whatever the temperature, please ensure that there is plenty of fresh air in your room when you are using an old-type gas water heater.
  • Relevant government departments, such as the Social Welfare Department and the Home Affairs Department would consider the need to take actions, such as the distribution of blankets and the opening of temporary shelters, during the warning in effect.
  • It is important that members of the public take note of the warning and take steps to protect themselves and their family against cold weather.
  • The public should listen to radio and television broadcasts for latest weather information.

Frost Warning

Ground frost is likely to occur in exposed areas or on high grounds when the weather is cold enough and the humidity is not too low. The Frost Warning will be issued to warn farmers or others concerned whenever it is expected that frost will probably occur somewhere in the territory.

Points to Note:

  • Farmers are advised to take any precaution measure to avoid vegetation from being frosted.
  • Car drivers are advised to avoid driving on roads which are covered with frost.

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