Typhoon Sarika, known in the Philippines as Typhoon Karen, was a powerful tropical cyclone which affected the Philippines, South China, and Vietnam in mid-October 2016. The twenty-first named storm and the tenth typhoon of the annual Pacific typhoon season, Sarika developed from a tropical disturbance east of the Philippines on October 13. The system steadily strengthened as it traveled westwards, becoming a tropical storm later that day and then a typhoon on October 15. Rapid intensification commenced as Sarika turned to the west-northwest towards Luzon, reaching its peak intensity just before making landfall in Aurora early on October 16. Sarika weakened significantly as it crossed land, emerging over the South China Sea as a minimal typhoon, then weakening further to a severe tropical s