The 1998 season

Unnamed tropical depression (1998)

Unnamed tropical depression peaked at 30 kt in the Western Pacific between August 31, 1998 and September 6, 1998.

Track and intensity

The whole track of Unnamed tropical depression, colored by strength, with the other storms of the 1998 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
August 31, 1998 to September 6, 1998
Peak strength
Tropical Depression, 30 kt (35 mph)
Landfall
No; closest approach 113 km (70 mi)
Accumulated cyclone energy
0.0
Identifier
WP071998

Radar at RODN as it neared land, Sep 1, 12:00 UTC

Deaths and damage

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

Track

Time (UTC)PositionWindPressureStatus
Aug 31, 06:0022.6N 122.4E20 ktNot reported
Aug 31, 12:0023.4N 122.7E20 ktNot reported
Aug 31, 18:0024.2N 123.3E20 ktNot reported
Sep 1, 00:0024.7N 124.4E25 ktTropical storm
Sep 1, 06:0024.8N 126.0E25 ktTropical storm
Sep 1, 12:0025.3N 127.8E25 ktTropical storm
Sep 1, 18:0026.0N 129.2E25 ktTropical storm
Sep 2, 00:0026.6N 130.3E25 ktTropical storm
Sep 2, 06:0027.3N 131.4E30 ktTropical storm
Sep 2, 12:0027.9N 133.0E30 ktTropical storm
Sep 2, 18:0028.3N 134.4E30 ktTropical storm
Sep 3, 00:0029.1N 136.6E30 ktTropical storm
Sep 3, 06:0029.5N 137.7E30 ktTropical storm
Sep 3, 12:0029.9N 138.9E30 ktTropical storm
Sep 3, 18:0030.2N 140.0E30 ktTropical storm
Sep 4, 00:0030.4N 140.9E30 ktTropical storm
Sep 4, 06:0030.6N 141.8E30 ktNot reported
Sep 4, 12:0030.5N 142.7E30 ktNot reported
Sep 4, 18:0030.1N 143.5E30 ktNot reported
Sep 5, 00:0029.6N 144.3E30 ktNot reported
Sep 5, 06:0029.0N 145.1E30 ktNot reported
Sep 5, 12:0028.4N 145.8E25 ktNot reported
Sep 5, 18:0027.5N 146.6E25 ktNot reported
Sep 6, 00:0026.7N 147.8E20 ktNot reported
Sep 6, 06:0026.0N 149.5E15 ktNot reported

Other Western Pacific storms of 1998

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.