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A storm surge watch would be issued when a life-threatening storm surge, associated with a potential or ongoing tropical, subtropical or post-tropical cyclone, is possible within the next 48 hours. These watches would be upgraded to storm surge warnings when there is a danger of life-threatening storm surge occurring within 36 hours.
Typhoon Haiyan, known in the Philippines as Typhoon "Yolanda", caused catastrophic destruction after ploughing through central Philippines in November 2013 with 10-minute maximum sustained winds peaking at 235 km/h as estimated by PAGASA. [20] Discussions on revising the PSWS started, as PSWS #4 was deemed inadequate for extreme tropical cyclones.
An abnormal rise in sea level accompanying a hurricane or other intense storm, and whose height is the difference between the observed level of the sea surface and the level that would have occurred in the absence of the cyclone. Storm surge is usually estimated by subtracting the normal or astronomic high tide from the observed storm tide. [1]
Learn about the formation and characteristics of hurricanes, typhoons and tornadoes.
The Philippines is impacted by an average of 20 tropical storms per year. So far this year, nine storms have hit the country. Although the previous three typhoon seasons were below normal in the ...
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Should the system continue to intensify further then it will be classified as a severe tropical storm, which has winds speeds between 48–63 kn (25–32 m/s; 55–72 mph; 89–117 km/h). [8] The highest classification on the Typhoon Committee's scale is a typhoon, which has winds speeds greater than 64 kn (33 m/s; 74 mph; 119 km/h). [8]
About 20 tropical storms strike the Philippines each year on average, bringing heavy rain, strong winds and deadly landslides. ... floods and landslides brought by tropical storm Trami and typhoon ...