The 2021 season

Unnamed tropical depression (2021)

Unnamed tropical depression peaked at 30 kt in the Western Pacific between July 4, 2021 and July 6, 2021, with a lowest pressure of 1003 mb.

Track and intensity

The whole track of Unnamed tropical depression, colored by strength, with the other storms of the 2021 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
July 4, 2021 to July 6, 2021
Peak strength
Tropical Depression, 30 kt (35 mph)
Lowest pressure
1003 mb (29.62 inHg)
Landfall
No; closest approach 10 km (6 mi)
Accumulated cyclone energy
0.0
Identifier
WP072021

Deaths and damage

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

Track

Time (UTC)PositionWindPressureStatus
Jul 4, 12:0015.8N 128.5E20 kt1004 mbTropical wave
Jul 4, 18:0017.1N 127.0E25 kt1003 mbTropical wave
Jul 5, 00:0018.2N 124.9E25 kt1004 mbTropical depression
Jul 5, 06:0019.5N 123.5E30 kt1003 mbTropical depression
Jul 5, 12:0020.7N 122.0E30 kt1003 mbTropical depression
Jul 5, 18:0021.5N 120.7E30 kt1003 mbTropical depression
Jul 6, 00:0022.3N 120.1ETropical storm

Other Western Pacific storms of 2021

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.