"Tropical Depression 27W Advisory Number 001". Joint Typhoon Warning Center. United States Navy. December 13, 2011. Archived from the original on May 23, 2024. Retrieved December 23, 2011.
"Tropical Storm 27W Advisory Number 005". Joint Typhoon Warning Center. United States Navy. December 14, 2011. Archived from the original on May 23, 2024. Retrieved December 23, 2011.
"Tropical Depression Sendong Advisory One". Philippine Atmospheric, Geophysical and Astronomical Services Administration. December 15, 2011. Archived from the original on May 23, 2024. Retrieved December 24, 2011.
"Tropical Depression 27W Advisory Number 008". Joint Typhoon Warning Center. United States Navy. December 15, 2011. Archived from the original on May 23, 2024. Retrieved December 24, 2011.
Del Rosario, Eduardo D (August 9, 2011). Final Report on Typhoon "Yolanda" (Haiyan)(PDF) (Report). Philippine National Disaster Risk Reduction and Management Council. pp. 77–148. Archived(PDF) from the original on November 5, 2020. Retrieved March 27, 2022.
Olavo Rasquinho; Jae Hyun Shim; Yun Tae Kim; Jae Chan Ahn; Chi Hun Lee; In Sung Jung; Gmma Dalena; Preminda Joseph Fernando; Susan R. Espinueva; Socrates F. Paat Jr.; Nivagine Nievares & Tess Pajarillo (December 2012). Assessment Report of the Damages Caused by Tropical Storm Washi(PDF) (Report). ESCAP/WMO Typhoon Committee. ISBN978-99965-817-6-2. Retrieved May 1, 2015.
"Tropical Cyclone Formation Alert". Joint Typhoon Warning Center. United States Navy. December 13, 2011. Archived from the original on October 21, 2011. Retrieved December 23, 2011.
"High Seas Forecast". Japan Meteorological Agency. December 13, 2011. Archived from the original on October 19, 2011. Retrieved December 23, 2011.
Del Rosario, Eduardo D (August 9, 2011). Final Report on Typhoon "Yolanda" (Haiyan)(PDF) (Report). Philippine National Disaster Risk Reduction and Management Council. pp. 77–148. Archived(PDF) from the original on November 5, 2020. Retrieved March 27, 2022.