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The remnants of Haikui caused torrential rain in Hong Kong as it stalled over Pearl River Delta, resulting in issuing a Black rainstorm signal for 16 hours, the longest duration ever since the rainstorm warning system was implemented in 1992. Haikui also further enhanced the southwest monsoon in the Philippines, causing extensive rainfall in Luzon.
Warning Signal Meaning TCWS #1 winds of 39–61 km/h (21–33 kn; 24–38 mph) are prevailing or expected to occur within 36 hours: TCWS #2
The first tropical cyclone warning in the country was issued in July 1879. In 1931, the earliest formalized warning system for tropical cyclones was implemented by PAGASA's predecessor, the Philippine Weather Bureau. [5] In the late 20th century, this system gradually became the more familiar four-tiered public storm warning signal system. [6]
The warning is issued just prior to when the strongest winds of the eyewall are expected to impact an area. [9] The warning is to be issued for the smallest area possible, and be valid for times of two hours or less. [9] It was developed in response to confusion resulting from the landfall of Hurricane Katrina.
In Luzon, heavy rains triggered floods that destroyed at least one house and stranded thousands of people. Eight people were killed in the Philippines. When Chanthu's rain bands passed over Hong Kong, heavy rains brought about serious floodings across the territory. The Black Rainstorm Signal was issued.
The same flag as a storm warning is used to indicate a tropical storm warning. On land, the National Weather Service issues a 'high wind warning' (Specific Area Message Encoding code: HWW) for storm-force winds, which also encompasses the lesser gale-force and greater hurricane force winds. In most cases, the warning applies to winds of 40-114 ...
Multiple roads were also closed off due to the threat of landslides in the mountainous territory, with authorities issuing the highest “black” rainstorm warning for the first time in two years.
Typhoon Toraji, known in the Philippines as Typhoon Nika, was a fairly strong tropical cyclone that impacted the Philippines in early November 2024. It was the fourth tropical cyclone in a series to impact the Philippines, following Tropical Storm Trami and Typhoons Kong-rey, Yinxing, Usagi, and Man-yi which had occurred just a few days earlier.