The 2015 season

Unnamed tropical depression (2015)

Unnamed tropical depression peaked at 25 kt in the Western Pacific between December 14, 2015 and December 19, 2015, with a lowest pressure of 1004 mb, and made landfall.

Track and intensity

The whole track of Unnamed tropical depression, 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
December 14, 2015 to December 19, 2015
Peak strength
Tropical Depression, 25 kt (29 mph)
Lowest pressure
1004 mb (29.65 inHg)
Landfall
Yes
Accumulated cyclone energy
0.0
Identifier
WP292015

Deaths and damage

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

Track

Time (UTC)PositionWindPressureStatus
Dec 14, 00:003.9N 145.8E20 kt1007 mbDisturbance
Dec 14, 06:004.5N 145.3E20 kt1007 mbDisturbance
Dec 14, 12:005.1N 144.4E25 kt1004 mbTropical depression
Dec 14, 18:005.7N 143.5E25 kt1004 mbTropical depression
Dec 15, 00:005.8N 141.9E20 kt1007 mbDisturbance
Dec 15, 06:005.9N 140.5E20 kt1007 mbDisturbance
Dec 15, 12:006.3N 139.2E20 kt1007 mbDisturbance
Dec 15, 18:007.0N 137.9E20 kt1007 mbDisturbance
Dec 16, 00:007.3N 136.3E20 kt1007 mbDisturbance
Dec 16, 06:007.5N 134.7E20 kt1007 mbDisturbance
Dec 16, 12:008.2N 133.6E15 kt1010 mbDisturbance
Dec 16, 18:008.6N 132.7E15 kt1010 mbDisturbance
Dec 17, 00:008.6N 132.2E15 kt1010 mbDisturbance
Dec 17, 06:008.3N 131.4E15 kt1010 mbDisturbance
Dec 17, 12:008.3N 130.8E20 kt1007 mbDisturbance
Dec 17, 18:008.0N 129.9E20 kt1007 mbDisturbance
Dec 18, 00:007.6N 128.8E20 kt1007 mbDisturbance
Dec 18, 06:007.4N 128.3E15 kt1010 mbDisturbance
Dec 18, 12:007.3N 127.5ETropical storm
Dec 18, 18:007.3N 126.9ETropical storm
Dec 19, 00:007.4N 126.1EDisturbance
Dec 19, 06:007.5N 125.3EDisturbance
Dec 19, 12:007.6N 124.4EDisturbance

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.