For the past ten years, the Philippines has experienced a number of extremely damaging tropical cyclones, particularly typhoons with more than of sustained winds. Because of this, the Super Typhoon (STY) category with more than maximum sustained winds was officially adopted. PAGASA revises definition of super typhoon, signal system in 2022. However, according to different stakeholders, the extensive and devastating damages caused by strong typhoons such as Typhoon Haiyan (Yolanda) in 2013 and Typhoon Rai (Odette) in 2021 made the fourlevel warning system inadequate.
