The 2004 season

Typhoon Namtheun (2004)

Typhoon Namtheun reached Category 4 in the Western Pacific between July 24, 2004 and August 3, 2004, with a lowest pressure of 927 mb, and made landfall.

Track and intensity

The whole track of Typhoon Namtheun, colored by strength, with the other storms of the 2004 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 24, 2004 to August 3, 2004
Peak strength
Category 4, 115 kt (132 mph)
Lowest pressure
927 mb (27.37 inHg)
Landfall
Yes
Accumulated cyclone energy
16.1
Identifier
WP132004

Deaths and damage

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

Track

Time (UTC)PositionWindPressureStatus
Jul 24, 06:0020.1N 150.8E20 kt1004 mbDisturbance
Jul 24, 12:0020.7N 150.7E20 kt1004 mbDisturbance
Jul 24, 18:0021.4N 150.5E20 kt1004 mbDisturbance
Jul 25, 00:0022.1N 150.3E25 kt1002 mbTropical depression
Jul 25, 06:0022.8N 150.0E30 kt1000 mbTropical depression
Jul 25, 12:0023.6N 149.5E35 kt997 mbTropical storm
Jul 25, 18:0024.2N 148.9E50 kt987 mbTropical storm
Jul 26, 00:0024.8N 148.4E65 kt976 mbTyphoon
Jul 26, 06:0025.4N 147.8E90 kt954 mbTyphoon
Jul 26, 12:0026.1N 147.2E105 kt938 mbTyphoon
Jul 26, 18:0026.9N 146.6E115 kt927 mbTyphoon
Jul 27, 00:0027.8N 146.0E115 kt927 mbTyphoon
Jul 27, 06:0028.7N 145.2E110 kt933 mbTyphoon
Jul 27, 12:0029.7N 144.6E105 kt938 mbTyphoon
Jul 27, 18:0030.4N 143.6E90 kt954 mbTyphoon
Jul 28, 00:0030.8N 142.5E90 kt954 mbTyphoon
Jul 28, 06:0031.2N 141.6E90 kt954 mbTyphoon
Jul 28, 12:0031.4N 140.8E80 kt963 mbTyphoon
Jul 28, 18:0031.5N 140.3E80 kt963 mbTyphoon
Jul 29, 00:0031.5N 139.8E80 kt963 mbTyphoon
Jul 29, 06:0031.5N 139.3E75 kt967 mbTyphoon
Jul 29, 12:0031.4N 138.8E65 kt976 mbTyphoon
Jul 29, 18:0031.6N 138.2E65 kt976 mbTyphoon
Jul 30, 00:0031.8N 137.5E65 kt976 mbTyphoon
Jul 30, 06:0031.9N 136.8E60 kt980 mbTropical storm
Jul 30, 12:0031.9N 136.0E55 kt984 mbTropical storm
Jul 30, 18:0032.2N 135.2E55 kt984 mbTropical storm
Jul 31, 00:0032.6N 134.4E55 kt984 mbTropical storm
Jul 31, 06:0033.2N 133.4E50 kt987 mbTropical storm
Jul 31, 12:0033.8N 132.6E45 kt991 mbTropical storm
Jul 31, 18:0034.3N 131.9E35 kt997 mbTropical storm
Aug 1, 00:0034.9N 131.5E35 kt997 mbTropical storm
Aug 1, 06:0035.6N 131.2E35 kt997 mbExtratropical
Aug 1, 12:0036.7N 131.4E35 kt998 mbTropical storm
Aug 1, 18:0037.7N 131.6E35 kt998 mbTropical storm
Aug 2, 00:0038.6N 132.2E1000 mbTropical storm
Aug 2, 06:0039.6N 132.9E1000 mbTropical storm
Aug 2, 12:0040.6N 134.0E1000 mbTropical storm
Aug 2, 18:0041.3N 135.0E1002 mbTropical storm
Aug 3, 00:0042.2N 136.2E1002 mbTropical storm
Aug 3, 06:0043.4N 138.0E1002 mbMixed
Aug 3, 12:0044.4N 140.2E1004 mbMixed
Aug 3, 18:0045.6N 140.9E1004 mbExtratropical

Other Western Pacific storms of 2004

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.