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The Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) releases tropical cyclone warnings in the form of Public Storm Warning Signals (PSWS) An area having a storm signal may be under:

  • PSWS #1 - Tropical cyclone winds of 30-60 km/h are expected within the next 36 hours. (Note: If a tropical cyclone forms very close to the area, then a shorter lead time is seen on the warning bulletin.)
  • PSWS #2 - Tropical cyclone winds of 60-100 km/h are expected within the next 24 hours.
  • PSWS #3 - Tropical cyclone winds of 100-185 km/h are expected within the next 18 hours.
  • PSWS #4 - Tropical cyclone winds of greater than 185 km/h are expected within 12 hours.
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Q: Meaning of typhoon signal numbers in the Philippines?
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