The 2015 season

Tropical Storm Etau (2015)

Tropical Storm Etau peaked at 60 kt in the Western Pacific between September 5, 2015 and September 11, 2015, with a lowest pressure of 978 mb, and made landfall.

Track and intensity

The whole track of Tropical Storm Etau, colored by strength, with the other storms of the 2015 season in the same basin behind it, and its wind and pressure hour by hour. Every fix is in the track table below.

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The storm

Basin
Western Pacific
Dates
September 5, 2015 to September 11, 2015
Peak strength
Tropical Storm, 60 kt (69 mph)
Lowest pressure
978 mb (28.88 inHg)
Landfall
Yes
Accumulated cyclone energy
2.0
Tropical-storm-force wind reached
120 nmi (222 km, 138 mi) from the center at its widest
Eyewall radius at its peak
25 nmi (46 km, 29 mi)
Overall size
240 nmi (444 km, 276 mi) to the outermost closed isobar
Peak gust in the best track
70 kt (81 mph)
Fastest the center moved
26 kt (30 mph)
Identifier
WP182015

Deaths and damage

No source this site reads carries a casualty or damage figure for this storm.

Track

Time (UTC)PositionWindPressureStatus
Sep 5, 12:0017.9N 141.5E10 kt1014 mbDisturbance
Sep 5, 18:0018.7N 140.1E15 kt1010 mbDisturbance
Sep 6, 00:0019.4N 139.7E15 kt1010 mbDisturbance
Sep 6, 06:0020.2N 139.3E20 kt1004 mbDisturbance
Sep 6, 12:0021.4N 139.1E25 kt1004 mbTropical depression
Sep 6, 18:0022.1N 139.0E30 kt1000 mbTropical depression
Sep 7, 00:0022.9N 138.6E30 kt1000 mbTropical depression
Sep 7, 06:0023.8N 138.6E35 kt996 mbTropical storm
Sep 7, 12:0024.7N 138.5E40 kt993 mbTropical storm
Sep 7, 18:0026.4N 138.3E45 kt989 mbTropical storm
Sep 8, 00:0027.8N 138.2E55 kt982 mbTropical storm
Sep 8, 06:0029.3N 138.3E60 kt978 mbTropical storm
Sep 8, 12:0031.4N 138.3E55 kt982 mbTropical storm
Sep 8, 18:0033.3N 137.8E50 kt985 mbTropical storm
Sep 9, 00:0034.7N 137.3E45 kt989 mbTropical storm
Sep 9, 06:0037.2N 136.2E35 kt996 mbTropical storm
Sep 9, 12:0037.9N 135.2E35 kt996 mbExtratropical
Sep 9, 18:0038.9N 134.5E998 mbExtratropical
Sep 10, 00:0039.4N 134.7E998 mbExtratropical
Sep 10, 06:0039.9N 135.1E998 mbExtratropical
Sep 10, 12:0039.9N 135.6E1000 mbExtratropical
Sep 10, 18:0039.9N 136.1E1000 mbExtratropical
Sep 11, 00:0040.0N 136.8E1000 mbExtratropical
Sep 11, 06:0040.4N 137.6E1000 mbExtratropical
Sep 11, 12:0041.0N 138.5E1000 mbExtratropical

Other Western Pacific storms of 2015

What this means

A best track is the record a warning agency settles on after the storm, not what it said at the time: position, maximum sustained wind and central pressure every six hours, revised against every observation that came in later. Category is the Saffir-Simpson scale, which runs from Category 1 at 64 kt to Category 5 at 137 kt and reads wind only, so it says nothing about surge or rain. Accumulated cyclone energy adds up the square of the wind through the storm's life, so it counts strength and duration together.

Sources

Storm history from NOAA NCEI’s International Best Track Archive for Climate Stewardship (IBTrACS), which merges the official best track of every warning agency. Live storms, cones, watches and warnings from the National Hurricane Center and the Central Pacific Hurricane Center. Archived radar from NOAA’s Level II archive.