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10 warnings generally occur in intervals of around four years or less, except for the period from the 1980s to 2000s when only two such signals were issued, for Typhoon Ellen in 1983 and Typhoon York in 1999. The Strong Monsoon Signal was used only as a warning against strong winter and summer monsoon winds and the black ball was displayed whenever monsoon winds were forecast or known to exceed 21 knots (40 kilometres per hour) in Victoria Harbour or coastal waters. Night signals using lanterns were introduced in late 1890 and they were hoisted on the mast beside the time-ball in Tsim Sha Tsui Police Barracks (the time-ball was used to provide the time service since January 1885). In some cases, it was also followed by gale warnings (i.e. Heavy rain may also cause flooding. The new local code was the first numbered tropical cyclone signal system in Hong Kong, consisting of seven signals (1 to 7)providing a standby signal, gale signals in four directions (N'ly, S'ly, E'ly and W'ly), an increasing gale signal and a hurricane signal. The night signal consisted of three lanterns with white or any colour but all alike, hung on a triangular frame, pointing upwards or downwards as the case might be. By then, only one round of the typhoon gun was fired to warn of strong gale of winds as it was considered that the advance warning was adequate. gust up to 111 miles per hour). If premises are buffeted by hurricane-force winds, all internal doors should be kept tightly shut to lessen the chance of windows or air-conditioning units being blown out or sucked in. Different signals were illustrated by different symbols and these were hoisted to indicate the prevailing wind conditions. The signal system was extended to ten signals (1 to 10), although Signal No. If you are advised to move to a safe place, it is essential to remain calm and co-operate with the rescue service. 4 was only used in the Philippines but not in Hong Kong, as the information it conveyed was covered by the non-local signals. This article Typhoon signal lowered to No 8 as Higos begins moving away from Hong Kong first appeared on South China Morning Post. After the Second World War, the previous tropical cyclone warning system was reinstated. Photo: Sam Tsang, From Cinema Online Exclusively for Yahoo Newsroom, First Trust Advisors L.P. After the disastrous storm that battered Hong Kong in September 1906 and resulted in over 10,000 deaths, a small committee consisting of the harbour master, a nominee of the commodore and a nominee of the Chamber of Commerce was set up to review the need to improve storm warning system for the local public. [13], Jit6 daai3 hei3 syun4 ging2 gou3 soen3 hou6, Conference of Directors of Far Eastern Weather Services, Tai Lam Chung Marine Police Operations Base, Marine Department Port Communication Centre, Cheung Chau Aeronautical Metrological Station, Cheung Chau Aeronautical Meteorological Station, "History of the Hong Kong Tropical Cyclone Warning Signals", "Casualties and Damage Caused by Tropical Cyclones in Hong Kong since 1960", "Code of Practice in times of Typhoons and Rainstorms", "Related Advisory Information and Arrangements from Bureaux and Departments in Tropical Cyclone Situations", "Review of the Tropical Cyclone Warning System in 2006 and New Measures in 2007", "Reference for the Issue of No.3 and No.8 Signals", https://www.bloomberg.com/news/articles/2017-08-22/hong-kong-braces-for-storm-hato-stock-trading-may-be-disrupted, http://www.hko.gov.hk/cgi-bin/hko/warndb_e1.pl?opt=1&sgnl=10&start_ym=194609&end_ym=201208&submit=Submit+Query, http://www.hko.gov.hk/wxinfo/dailywx/wxwarntoday.htm, http://www.hko.gov.hk/publica/gen_pub/tcws.pdf, "Meaning of Tropical Cyclone Signals and the relevant recommended safety precautions", "Weather boss steps down as Macau struggles to recover from typhoon", Hong Kong's Tropical Cyclone Warning Signals, Tropical Cyclone Warning Signals of Macao, https://en.wikipedia.org/w/index.php?title=Hong_Kong_tropical_cyclone_warning_signals&oldid=978835040, Articles containing Chinese-language text, Creative Commons Attribution-ShareAlike License. When Typhoon Mangkhut hit Hong Kong in September 2018 with signal 10 being issued, all of the above happened. This will be followed by the return of hurricane-force winds from a different direction. No. The new wireless mast was set up a little to the northeast of the Main (1883) Building. The Home Affairs Department activated a round-the-clock hotline, 2572 8427, for public inquiries on the tropical cyclone. Contractors should see that all scaffolding, hoardings and other temporary structures are secured. At 5am, the weather forecaster of Macau, which is just an hour from Hong Kong by ferry, issued the highest signal –No 10 – and said it will “remain in effect for a period of time”. Small crafts should remain within reach of shelter. In 1962, visual signals displayed at 33 signal stations in various parts of Hong Kong. Most of the signal stations were located at government buildings of the Hong Kong Police Force and the Marine Department. Its place was taken up by the urgent signal of firing three explosive bombs at the Water Police Station in Tsim Sha Tsui, at intervals of ten seconds when the winds were expected to increase to full hurricane force. In 1933, the wireless mast was removed from its original position to make way for the Director's Quarters. Aberdeen Police Station was vacated in October 1969 and the signal mast were removed to the top of the Fisheries Research Station in Aberdeen early in 1970. A drum was added to the cone when a strong gale which might reach hurricane force was expected. Local people in Hong Kong were warned of the hazardous wind conditions associated with tropical cyclones by means of a typhoon gun as early as August 1884. 8, issued at 7.40am, was replaced by Strong Wind Signal No. The Hong Kong Observatory on Wednesday morning issued the typhoon signal No 9 at 1.30am, as Typhoon Higos unleashed strong winds in the city. Gusts may exceed 180 kilometres per hour. The highest level, Hurricane Signal No. The Education Department has … All schools were closed for the day and the government opened temporary shelters. For a lot of Hongkongers, the first typhoon signal this year of at least No 8 – an alert long taken as official approval to stop work and go home – may have less meaning as many employees are already working from home ready because of the pandemic. If strong winds are not expected within 24 hours, the issuance of the signal may be delayed until the circulation moves closer or intensifies, but it should not be assumed that there will be a 24-hour interval between the issuance of No.

Occasionally, when Hong Kong was under the combined effect of monsoon and tropical cyclone, the Strong Monsoon Signal might be replaced by tropical cyclone signals and vice versa depending on the synoptic conditions at the time.

1 signal is an advisory signal.

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