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The Philippines is a Typhoon (Tropical Cyclone)-prone country, with approximately 20 Tropical Cyclones entering its area of responsibility per year. Locally known generally as bagyo (), [3] typhoons regularly form in the Philippine Sea and less regularly, in the South China Sea, with the months of June to September being the most active, August being the month with the most activity.
Highest Tropical Cyclone Warning Signal raised by PAGASA across the Philippines in relation to Typhoon Koppu (Lando) April 5, 2015: A weakening Tropical Storm Maysak (Chedeng) hits Cagayan Valley, killing only 5 people. May 8–10, 2015: Typhoon Noul (Dodong) hits the northwestern tip of Luzon as a Category 5 super typhoon.
The lowest classification used by the Typhoon Committee is a tropical depression, which has 10-minute sustained winds of less than 34 kn (17 m/s; 39 mph; 63 km/h). [8] Should the tropical depression intensify further it is named and classified as a tropical storm, which has winds speeds between 34–47 kn (17–24 m/s; 39–54 mph; 63–87 km/h ...
For the intensity scale, PAGASA lowered the threshold wind speed for classifying super typhoons from 220 km/h to 185 km/h and defined a super typhoon as an extreme tropical cyclone with 10-minute maximum sustained winds reaching 185 km/h or greater (the range of wind speed for typhoon category is consequently adjusted to 118–184 km/h).
PAGASA's Tropical Cyclone Intensity Scale [1] [2] Category Sustained winds Super typhoon (STY) ≥185 km/h ≥100 knots: Typhoon (TY) 118–184 km/h 64–99 knots: Severe tropical storm (STS) 89–117 km/h 48–63 knots: Tropical storm (TS) 62–88 km/h 34–47 knots: Tropical depression (TD) ≤61 km/h ≤33 knots
Since 1963, the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) has assigned local names to a tropical cyclone should it move into or form as a tropical depression in their area of responsibility located between 135°E and 115°E and between 5°N-25°N, even if the cyclone has had an international name assigned to it.
The Philippine Atmospheric, Geophysical and Astronomical Services Administration (Filipino: Pangasiwaan ng Pilipinas sa Serbisyong Atmosperiko, Heopisiko at Astronomiko, [4] abbreviated as PAGASA, which means "hope" as in the Tagalog word pag-asa) is the National Meteorological and Hydrological Services (NMHS) agency of the Philippines mandated to provide protection against natural calamities ...
This was the first time PAGASA retired a typhoon name afterwards. July 9, 1964: Tropical Storm Cora (Huaning) nears Samar before dissipating. Storm warnings were issued in southeastern Luzon with Cora 100 km (60 mi) east of Samar, with forecasts projecting stormy conditions in the region and in other islands in the east-central Philippines. [4]