The 2006 season

Tropical Storm Sonamu (2006)

Tropical Storm Sonamu peaked at 45 kt in the Western Pacific between August 13, 2006 and August 16, 2006, with a lowest pressure of 991 mb.

Track and intensity

The whole track of Tropical Storm Sonamu, colored by strength, with the other storms of the 2006 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 13, 2006 to August 16, 2006
Peak strength
Tropical Storm, 45 kt (52 mph)
Lowest pressure
991 mb (29.26 inHg)
Landfall
No; closest approach 58 km (36 mi)
Accumulated cyclone energy
1.2
Identifier
WP122006

Deaths and damage

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

Track

Time (UTC)PositionWindPressureStatus
Aug 13, 00:0017.0N 125.9E1000 mbTropical storm
Aug 13, 06:0017.0N 126.5E15 kt1006 mbDisturbance
Aug 13, 12:0017.2N 127.2E15 kt1006 mbDisturbance
Aug 13, 18:0017.4N 128.4E25 kt1002 mbDisturbance
Aug 14, 00:0018.0N 129.9E30 kt1000 mbTropical depression
Aug 14, 06:0018.7N 131.3E40 kt994 mbTropical storm
Aug 14, 12:0019.8N 132.4E40 kt994 mbTropical storm
Aug 14, 18:0020.2N 133.9E45 kt991 mbTropical storm
Aug 15, 00:0021.0N 135.6E45 kt991 mbTropical storm
Aug 15, 06:0022.4N 137.2E45 kt991 mbTropical storm
Aug 15, 12:0023.9N 139.1E40 kt994 mbTropical storm
Aug 15, 18:0026.9N 140.4E35 kt997 mbTropical storm
Aug 16, 00:0030.2N 140.3E30 kt1000 mbTropical depression
Aug 16, 06:0032.3N 137.8E25 kt1002 mbTropical depression
Aug 16, 12:0032.7N 134.4E20 kt1004 mbDisturbance

Other Western Pacific storms of 2006

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.