The 2018 season

Unnamed tropical depression (2018)

Unnamed tropical depression peaked at 30 kt in the Western Pacific between December 23, 2018 and December 30, 2018, with a lowest pressure of 998 mb, and made landfall.

Track and intensity

The whole track of Unnamed tropical depression, colored by strength, with the other storms of the 2018 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 23, 2018 to December 30, 2018
Peak strength
Tropical Depression, 30 kt (35 mph)
Lowest pressure
998 mb (29.47 inHg)
Landfall
Yes
Accumulated cyclone energy
0.0
Identifier
WP352018

Deaths and damage

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

Track

Time (UTC)PositionWindPressureStatus
Dec 23, 12:006.8N 140.4E20 kt1006 mbDisturbance
Dec 23, 18:006.9N 139.2E20 kt1006 mbDisturbance
Dec 24, 00:007.0N 138.0E20 kt1006 mbDisturbance
Dec 24, 06:007.0N 137.1E20 kt1005 mbDisturbance
Dec 24, 12:007.1N 136.5E20 kt1005 mbDisturbance
Dec 24, 18:007.2N 136.0E20 kt1005 mbDisturbance
Dec 25, 00:007.6N 135.7E20 kt1005 mbDisturbance
Dec 25, 06:008.3N 135.3E20 kt1005 mbDisturbance
Dec 25, 12:009.0N 134.8E20 kt1004 mbLow
Dec 25, 18:009.7N 133.9E20 kt1004 mbLow
Dec 26, 00:009.8N 132.9E20 kt1004 mbLow
Dec 26, 06:009.6N 131.9E25 kt1003 mbLow
Dec 26, 12:009.8N 131.4E25 kt1003 mbLow
Dec 26, 18:009.7N 131.2E25 kt1002 mbLow
Dec 27, 00:009.9N 130.9E25 kt1003 mbTropical depression
Dec 27, 06:0010.2N 130.1E25 kt1002 mbTropical depression
Dec 27, 12:0010.4N 129.5E25 kt1001 mbTropical depression
Dec 27, 18:0010.6N 129.1E25 kt1001 mbTropical depression
Dec 28, 00:0010.7N 128.8E30 kt999 mbTropical depression
Dec 28, 06:0010.8N 128.5E30 kt998 mbTropical depression
Dec 28, 12:0011.0N 127.7E25 kt1001 mbLow
Dec 28, 18:0011.3N 126.3ETropical storm
Dec 29, 00:0011.5N 124.8ETropical storm
Dec 29, 06:0011.7N 123.4ETropical storm
Dec 29, 12:0011.2N 122.1ETropical storm
Dec 29, 18:0010.2N 121.0ETropical storm
Dec 30, 00:008.8N 119.9ETropical storm

Other Western Pacific storms of 2018

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.