 Because of this, the Super Typhoon (STY) category with more than maximum sustained winds was officially adopted by the PAGASA.However, according to different stakeholders, the extensive and devastating damages caused by strong typhoons such as Typhoon Haiyan (Yolanda) in 2013 made the fourlevel warning system inadequate.The deadliest typhoon to impact the Philippines was Typhoon Haiyan, locally known as Yolanda, in November 2013, in which more than 6,300 lives were lost from its storm surges and powerful winds.