0000 UTC, – The JTWC reports that Tropical Depression 01W has intensified into a tropical storm.[1]
1200 UTC, – The JTWC reports that Tropical Storm 01W has weakened into a tropical depression.[1]
1800 UTC, – The JTWC reports that Tropical Depression 01W has re-intensified into a tropical storm.[1]
January 18
0600 UTC, – The JMA reports that the tropical depression (01W) has intensified into a tropical storm and names it "Yanyan". Simultaneously, they report that it has reached its peak 10-minute sustained wind speeds of 65 km/h (40 mph).[2]
1800 UTC, – The JTWC reports that Tropical Storm Yanyan (01W) has reached its peak one-minute sustained wind speeds of 95 km/h (60 mph).[1]
January 20
1200 UTC, – The JMA report that Tropical Storm Yanyan (01W) has weakened into a tropical depression.[2]
1800 UTC, – The JTWC report that Tropical Storm Yanyan (01W) has weakened into a tropical depression.[1]
January 21
0000 UTC, – The JMA report that Tropical Depression Yanyan (01W) has dissipated.[2]
1200 UTC, – The JTWC report that Tropical Depression Yanyan (01W) has dissipated.[1]
0000 UTC, – PAGASA reports that a tropical depression has formed and names it "Lakay".[5]
0600 UTC, – The JMA reports that a tropical depression has formed east of Taiwan.[2]
1800 UTC, – The JTWC designates the tropical depression east of Taiwan as Tropical Depression 13W.[6]
August 19
0600 UTC, – The JMA reports that the tropical depression (13W) has intensified into a tropical storm and names it "Vamco".[2] Simultaneously, they report that it has reached its peak 10-minute sustained wind speeds of 65 km/h (40 mph).[2]
0600 UTC, – PAGASA designates Tropical Storm Vamco (13W) as a tropical depression and names it "Manang".[7]
1800 UTC, – The JTWC reports that Tropical Depression Vamco (13W) has intensified into a tropical storm.[6]
1800 UTC, – PAGASA reports that Tropical Depression Lakay has intensified into a tropical storm.[5]
1800 UTC, – PAGASA reports that Tropical Depression Manang (13W-Vamco) has intensified into a tropical storm. Simultaneously, they report that it has moved out of their Area of Responsibility.[7]
August 20
0000 UTC, – The JMA reports that Tropical Storm Vamco (13W) has weakened into a tropical depression and dissipated.[2]
0600 UTC, – The JTWC reports that Tropical Storm Vamco (13W) has make landfall near Wenzhou, China with winds of 65 km/h (40 mph). Simultaneously, they report that it has weakened into a tropical depression.[6]
1200 UTC, – PAGASA reports that Tropical Storm Lakay has moved out of its Area of Responsibility.[5]
1800 UTC, – The JTWC reports that Tropical Depression Vamco (13W) has dissipated over China.[6]
