Tropical Cyclone Formation Alert. Joint Typhoon Warning Center (Report). National Oceanic and Atmospheric Administration. 21 April 2016. Archived from the original on 22 May 2024. Retrieved 21 April 2016.
Tropical Cyclone Formation Alert. Joint Typhoon Warning Center (Report). National Oceanic and Atmospheric Administration. 21 April 2016. Archived from the original on 22 May 2024. Retrieved 21 April 2016.