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Precautions urged during rainy and tropical cyclone season

27 April 2010

With the start of the rainy and tropical cyclone season, the Director of the Hong Kong Observatory, Lee Boon-ying, reminds the public to get prepared for severe weather to minimise possible loss of life, injury and property damage.

Every year, tropical cyclones bring high winds and torrential rain in Hong Kong. Rain and thunderstorms accompanied by lightning and squalls affect the territory from time to time and induced gusts of up to 135 kilometres per hour have occurred in Hong Kong.

He appealed to civil engineers, architects, contractors and container terminal operators to ensure that scaffolding, neon signs, temporary structures and containers (in particular empty containers) are properly secured or attended to when a Tropical Cyclone Warning Signal or the Thunderstorm Warning is issued by the Hong Kong Observatory.

During the passage of tropical cyclones, advisory information is provided by the Observatory in its Tropical Cyclone Warning Bulletins which are broadcast by the media and available on The Observatory also provides regional wind information on its website and through the Dial-a-Weather service (Tel: 187 8200).

When gusts greater than 70 kilometres per hour associated with thunderstorms have been recorded or are expected in any part of Hong Kong, the Observatory will provide gust information or alerts in the Thunderstorm Warning. In addition, real-time display of maximum gusts recorded at various places in Hong Kong is available on the Observatory's website Real-time display of weather radar images overlaid with lightning locations can be viewed on

The public may refer to "Guide on Safety at Work in Times of Inclement Weather" ( and the "Code of Practice in Times of Typhoons and Rainstorms" ( issued by the Labour Department and draw up appropriate contingency plans and measures to deal with heavy rain, thunderstorms, severe gusts and high winds ahead of time to minimise possible loss and damage.