The 2017 season

Unnamed tropical depression (2017)

Unnamed tropical depression peaked at 25 kt in the Western Pacific between October 18, 2017 and October 20, 2017, with a lowest pressure of 1002 mb.

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 18, 2017 to October 20, 2017
Peak strength
Tropical Depression, 25 kt (29 mph)
Lowest pressure
1002 mb (29.59 inHg)
Landfall
No; closest approach 15 km (9 mi)
Accumulated cyclone energy
0.0
Identifier
WP262017

Deaths and damage

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

Track

Time (UTC)PositionWindPressureStatus
Oct 18, 06:009.1N 115.8E20 kt1004 mbDisturbance
Oct 18, 12:009.4N 116.2E20 kt1004 mbDisturbance
Oct 18, 18:009.8N 116.6E25 kt1002 mbDisturbance
Oct 19, 00:0010.4N 117.1E25 kt1002 mbTropical depression
Oct 19, 06:0010.8N 117.8E25 kt1003 mbTropical depression
Oct 19, 12:0011.1N 118.5E20 kt1005 mbDisturbance
Oct 19, 18:0011.4N 119.4E20 kt1005 mbDisturbance
Oct 20, 00:0011.7N 120.5E20 kt1005 mbDisturbance

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.