The 2017 season

Unnamed tropical depression (2017)

Unnamed tropical depression peaked at 30 kt in the Western Pacific between October 8, 2017 and October 10, 2017, with a lowest pressure of 999 mb, and made landfall.

Track and intensity

The whole track of Unnamed tropical depression, colored by strength, with the other storms of the 2017 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
October 8, 2017 to October 10, 2017
Peak strength
Tropical Depression, 30 kt (35 mph)
Lowest pressure
999 mb (29.50 inHg)
Landfall
Yes
Accumulated cyclone energy
0.0
Identifier
WP232017

Deaths and damage

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

Track

Time (UTC)PositionWindPressureStatus
Oct 8, 12:0016.5N 113.4ETropical storm
Oct 8, 18:0016.2N 112.6ETropical storm
Oct 9, 00:0016.6N 111.9E20 kt1006 mbDisturbance
Oct 9, 06:0016.9N 110.4E25 kt1003 mbTropical depression
Oct 9, 12:0017.3N 108.6E25 kt1002 mbTropical depression
Oct 9, 18:0017.8N 107.1E30 kt1000 mbTropical depression
Oct 10, 00:0018.4N 105.6E30 kt999 mbTropical depression
Oct 10, 06:0019.2N 103.5E20 kt1007 mbDisturbance
Oct 10, 12:0021.5N 101.9EDisturbance

Other Western Pacific storms of 2017

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.