Typhoons may form and affect Hong Kong from May to November. Tropical cyclone advisory bulletins or warnings are issued by the Hong Kong Observatory when a tropical cyclone moves within 800km of Hong Kong.
The Hong Kong Observatory uses numbers 1, 3, 8, 9 and 10 to signify the strength of a tropical cyclone in the vicinity of Hong Kong.
• SIGNAL 1: A tropical cyclone is centred within 800km of Hong Kong and may later possibly affect the territory.
• SIGNAL 3: Strong wind is expected or blowing generally in Hong Kong near sea level, and the wind condition is expected to persist. Winds are normally expected to become generally strong in Hong Kong within 12 hours after this signal is issued.
• SIGNAL 8 AND ABOVE: Gale or storm force wind is expected or blowing in Hong Kong near sea level, which may increase in strength and the conditions are expected to persist. Winds are normally expected to reach gale force generally in Hong Kong within 12 hours after a No. 8 signal replaces No. 3 signal.
The rainy season in Hong Kong is normally between April and September. Rain can be particularly heavy and persistent during May and June, causing traffic disruption and occasionally major floods and landslips.
The rainstorm warning system is designed to alert the public about the occurrence of heavy rain which is likely to bring about major disruptions, and to ensure a state of readiness within the essential services to deal with emergencies.
There are three levels of warning: , and .
• The signal gives alert about potential heavy rain that may develop into or signal situations. There will be flooding in some low-lying and poorly drained areas. Key government departments and major transport and utility operators are put on alert.
• The and signals warn of heavy rain which is likely to bring about serious road flooding and traffic congestion. They will trigger response actions by government departments and major transport and utility operators.
Latest tropical cyclone/rainstorm warnings and related announcements are broadcast on radio and TV and posted on the Hong Kong Observatory website (www.hko.gov.hk). MyObservatory mobile app and Dial-a-Weather system (Hong Kong Tel: 1878200).
Extreme weather may cause immediate risk, we recognise a duty of care in coordinating an appropriate level of response, initiating pre-planned actions and reducing potential impact.
Regular communications will be issued to facilitate necessary actions in the days prior and during any occurrence via the fair website, social media, onsite briefings and venue announcements.
|TYPHOON SIGNAL 8 (OR ABOVE)|
|Pre-Typhoon Signal No.8 or Typhoon Signal No. 8 (or above)||Issued by|
|The Show WILL NOT OPEN as scheduled|
|Typhoon Signal No. 8|
|Lowered before 1300||The show will OPEN 2 HOURS AFTER lowered|
• EXHIBITORS may be allowed to enter venue halls ONE HOUR AFTER the signal is lowered.
• Assess unsafe conditions and inform organiser.
• Stands should be manned by reopening
|Remains issued after 1300||The show REMAINS CLOSED for day|
|Pre-Typhoon Signal No.8||Issued during show hours||The show will CLOSE WITHIN 2 HOURS|
|Typhoon Signal No. 8 |
|THE Show will CLOSE IMMEDIATELY|
• Public announcements will be made when information issued by the Hong Kong Observatory.
• Attendees must evacuate, if it is safe and as soon as reasonably practicable.
|BLACK RAINSTORM WARNING|
|Issued by 0800hrs||The show WILL NOT OPEN as scheduled|
|Cancelled before 1300hrs||The show will OPEN 2 HOURS AFTER cancelled|
•EXHIBITORS may be allowed to enter venue halls ONE HOUR AFTER the warning cancelled.
• Assess any unsafe conditions and inform organiser.
• Booths should be manned by reopening.
|Warning remains after 1300hrs||The show REMAINS CLOSED for day|
|During show hours||The show REMAINS OPEN|
• Attendees will be advised to take shelter within the venue for their own safety.
|MOVE IN / MOVE OUT|
|Pre-Typhoon Signal No. 8|
• Organiser will assess the conditions and work with business partners and customers to prepare for the move-in and move-out.
|Typhoon Signal No. 8 (or above) or Black Rainstorm Warning|
• No lifting activities when above 25 knots/hr wind speed.
• Secure onsite assets.
• Evacuate or seek shelter in venue, as per official guidance.