The 2009 season

Tropical Storm Goni (2009)

Tropical Storm Goni peaked at 45 kt in the Western Pacific between July 31, 2009 and August 10, 2009, with a lowest pressure of 988 mb, and made landfall.

Track and intensity

The whole track of Tropical Storm Goni, colored by strength, with the other storms of the 2009 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 31, 2009 to August 10, 2009
Peak strength
Tropical Storm, 45 kt (52 mph)
Lowest pressure
988 mb (29.18 inHg)
Landfall
Yes
Accumulated cyclone energy
0.9
Identifier
WP082009

Deaths and damage

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

Track

Time (UTC)PositionWindPressureStatus
Jul 31, 12:0015.7N 129.8ETropical storm
Jul 31, 18:0016.1N 127.9ETropical storm
Aug 1, 00:0016.5N 126.1ETropical storm
Aug 1, 06:0016.9N 124.2E992 mbTropical storm
Aug 1, 12:0017.2N 122.5E994 mbTropical storm
Aug 1, 18:0018.0N 119.6E20 kt1007 mbDisturbance
Aug 2, 00:0017.6N 118.5E20 kt1007 mbDisturbance
Aug 2, 06:0017.3N 117.6E25 kt1004 mbTropical depression
Aug 2, 12:0017.6N 117.0E25 kt993 mbTropical depression
Aug 2, 18:0017.9N 116.4E30 kt991 mbTropical depression
Aug 3, 00:0018.4N 116.1E30 kt988 mbTropical depression
Aug 3, 06:0019.2N 115.8E30 kt990 mbTropical depression
Aug 3, 12:0019.8N 115.2E30 kt990 mbTropical depression
Aug 3, 18:0020.1N 114.4E35 kt992 mbTropical storm
Aug 4, 00:0020.6N 114.2E40 kt991 mbTropical storm
Aug 4, 06:0021.1N 114.0E40 kt996 mbTropical storm
Aug 4, 12:0021.5N 113.6E40 kt993 mbTropical storm
Aug 4, 18:0021.7N 113.0E45 kt989 mbTropical storm
Aug 5, 00:0021.8N 112.7E25 kt1004 mbTropical depression
Aug 5, 06:0022.0N 112.4E25 kt1004 mbTropical depression
Aug 5, 12:0022.1N 112.2E20 kt1007 mbTropical depression
Aug 5, 18:0022.1N 111.9E15 kt1010 mbTropical depression
Aug 6, 00:0022.3N 111.4E15 kt1010 mbTropical depression
Aug 6, 06:0022.3N 110.6E15 kt1010 mbTropical depression
Aug 6, 12:0022.0N 109.8E15 kt1010 mbTropical depression
Aug 6, 18:0021.3N 109.5E20 kt1007 mbTropical depression
Aug 7, 00:0020.7N 109.5E20 kt1007 mbTropical depression
Aug 7, 06:0020.3N 109.2E20 kt1007 mbTropical depression
Aug 7, 12:0020.0N 108.9E25 kt1004 mbTropical depression
Aug 7, 18:0019.7N 108.7E35 kt994 mbTropical storm
Aug 8, 00:0019.4N 108.3E30 kt1000 mbTropical depression
Aug 8, 06:0018.8N 107.8E30 kt999 mbTropical depression
Aug 8, 12:0018.2N 107.9E20 kt1007 mbDisturbance
Aug 8, 18:0017.9N 108.3E20 kt1007 mbDisturbance
Aug 9, 00:0018.0N 111.2E994 mbTropical storm
Aug 9, 06:0018.8N 112.6E994 mbTropical storm
Aug 9, 12:0019.3N 113.3E994 mbMixed
Aug 9, 18:0019.9N 113.8E994 mbTropical storm
Aug 10, 00:0020.4N 114.3E996 mbTropical storm

Other Western Pacific storms of 2009

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.