Typhoon and Rainstorm Warnings – Guidance for Attendees

Typhoon and Rainstorm Warnings – Guidance for Attendees

Typhoons

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. 

Rainstorms

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: AMBERRED and BLACK

• The AMBER signal gives alert about potential heavy rain that may develop into RED or BLACK 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 RED and BLACK 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).
TYPHOON SIGNAL 8 (OR ABOVE)
Pre-Typhoon Signal No.8 or Typhoon Signal No. 8 (or above) Issued by 0800 The Show WILL NOT OPEN as scheduled
Typhoon Signal No. 8 (or above) 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.
  • Booths 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 (or above) THE Show will CLOSE INSTANTLY
  • Public announcements will be made, when information is declared by The Hong Kong Observatory.
  • Attendees will evacuate, if it is safe and as soon as reasonably practicable.
BLACK RAINSTORM WARNING
By 0800 The show WILL NOT OPEN as scheduled
Cancelled before 1300 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 1300 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.
BLACK RAINSTORM WARNING
By 0800The show WILL NOT OPEN as scheduled 
Cancelled before 1300The 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 1300The show REMAINS CLOSED for day 
During show hoursThe 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 our business partners and customers to prepare for the move-in and move-out.
Typhoon Signal No. 8 (or above) or Black Rain-storm Warning
  • No lifting activities when above 25 knots wind speed.
  • Secure onsite assets.
  • Evacuate or seek shelter in venue, as per official guidance.

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