page_title: Timeline of the 2015 Pacific typhoon season
section_title: August
hierarchical_section_title: Timeline of the 2015 Pacific typhoon season / Season summary / August
caption_attribution_description: English: Track map of Tropical Storm Molave of the 2015 Pacific typhoon season. The points show the location of the storm at 6-hour intervals. The colour represents the storm's maximum sustained wind speeds as classified in the Saffir–Simpson scale (see below), and the shape of the data points represent the nature of the storm, according to the legend below. Saffir–Simpson scale Tropical depression≤38 mph≤62 km/h Category 3111–129 mph178–208 km/h Tropical storm39–73 mph63–118 km/h Category 4130–156 mph209–251 km/h Category 174–95 mph119–153 km/h Category 5≥157 mph≥252 km/h Category 296–110 mph154–177 km/h Unknown Storm type Tropical cyclone Subtropical cyclone Extratropical cyclone / Remnant low / Tropical disturbance / Monsoon depression
context_page_description: This timeline documents all of the events of the 2015 Pacific typhoon season. Most of the tropical cyclones formed between May and November. The scope of this article is limited to the Pacific Ocean, north of the equator between 100°E and the International Date Line. This area, called the Western Pacific basin, is the responsibility of the Japanese Meteorological Agency. They host and operate the Regional Specialized Meteorological Center, located in Tokyo. The Japanese Meteorological Agency is also responsible for assigning names to all tropical storms that are formed within the basin. However, any storm that enters or forms in the Philippine Area of Responsibility will be named by the Philippine Atmospheric, Geophysical and Astronomical Services Administration using a local name. Also of note - the Western Pacific basin is monitored by the United States' Joint Typhoon Warning Center, which gives all Tropical depressions a number with a "W" suffix.
context_section_description: August 1
  06:00 UTC – The JMA starts to monitor a very weak tropical depression several kilometers southeast of Japan.
  August 2
  06:00 UTC – Both agencies upgrade Soudelor to a typhoon.
  09:00 UTC – The JTWC starts issuing advisories on the tropical depression, designating it as 14W.
  August 3
  12:00 UTC – The JTWC upgrades Soudelor to super typhoon status.
  18:00 UTC – Soudelor reaches Category 5 super typhoon intensity.
  August 4
  18:00 UTC – Soudelor weakens to a Category 4 super typhoon.
  August 5
  00:00 UTC – PAGASA reports that Soudelor had entered their area, receiving the name Hanna.
  12:00 UTC – A tropical depression develops just east of the Mariana Islands.
  18:00 UTC –  The JMA stops warning on 14W.
  August 7
  03:00 UTC – The JTWC starts issuing advisories on the depression, designating it as 15W.
  12:00 UTC – 15W intensifies into Tropical Storm Molave.
  August 8
  21:00 UTC – The JTWC issues its final warning on Soudelor.
  August 9
  12:00 UTC – Soudelor weakens to a tropical depression with the JMA issuing its final advisory.
  15:00 UTC – The JTWC classifies and downgrades Molave to a subtropical depression. Therefore, they issued their final advisory.
  August 10
  03:00 UTC – Because of organization with Molave, the JTWC upgraded Molave to a subtropical storm.
  August 11
  06:00 UTC – The JMA considers that Soudelor had transitioned into an extratropical cyclone.
  August 13
  18:00 UTC – The JMA starts to monitor a tropical depression southeast of Guam.
  21:00 UTC – The JTWC issues its final warning on Molave.
  August 14
  00:00 UTC – Molave transitions into an extratropical cyclone.
  03:00 UTC – The depression intensifies into Tropical Depression 16W.
  06:00 UTC – The JMA starts to monitor another tropical depression east-northeast of 16W.
  09:00 UTC – The JTWC starts issuing advisories on the depression, designating 17W.
  18:00 UTC – Both agencies upgrade 16W and 17W to tropical storms, naming them Goni and Atsani.
  August 16
  12:00 UTC – The JMA upgrades Atsani to a typhoon.
  18:00 UTC – The JMA upgrades Goni to a typhoon.
  August 19
  03:00 UTC – The JTWC classifies Atsani a super typhoon.
caption: Track of Tropical Storm Molave during early-August
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