The 2007 season

Unnamed tropical depression (2007)

Unnamed tropical depression peaked at 30 kt in the Western Pacific between September 19, 2007 and September 21, 2007, with a lowest pressure of 1000 mb.

Track and intensity

The whole track of Unnamed tropical depression, colored by strength, with the other storms of the 2007 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
September 19, 2007 to September 21, 2007
Peak strength
Tropical Depression, 30 kt (35 mph)
Lowest pressure
1000 mb (29.53 inHg)
Landfall
No; closest approach 1103 km (685 mi)
Accumulated cyclone energy
0.0
Identifier
WP142007

Deaths and damage

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

Track

Time (UTC)PositionWindPressureStatus
Sep 19, 06:008.9N 137.8E15 kt1010 mbDisturbance
Sep 19, 12:009.3N 137.7E15 kt1010 mbDisturbance
Sep 19, 18:0010.0N 137.5E20 kt1004 mbDisturbance
Sep 20, 00:0011.4N 137.3E20 kt1007 mbDisturbance
Sep 20, 06:0012.8N 137.2E20 kt1007 mbDisturbance
Sep 20, 12:0014.2N 136.9E30 kt1000 mbTropical depression
Sep 20, 18:0015.1N 136.6E30 kt1000 mbTropical depression
Sep 21, 00:0015.6N 136.4E25 kt1004 mbTropical depression

Other Western Pacific storms of 2007

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.