The 1984 season

Tropical Storm Susan (1984)

Tropical Storm Susan peaked at 40 kt in the Western Pacific between October 10, 1984 and October 15, 1984, with a lowest pressure of 996 mb, and made landfall.

Track and intensity

The whole track of Tropical Storm Susan, colored by strength, with the other storms of the 1984 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
October 10, 1984 to October 15, 1984
Peak strength
Tropical Storm, 40 kt (46 mph)
Lowest pressure
996 mb (29.41 inHg)
Landfall
Yes
Accumulated cyclone energy
0.3
Identifier
WP221984

Deaths and damage

No source this site reads publishes a machine-readable casualty or damage figure for a storm of this era. The National Hurricane Center’s season tables begin in 1995 and carry deaths and damage only from 2005 in the Atlantic and 2020 in both basins; the US Storm Events record begins in 1996.

Track

Time (UTC)PositionWindPressureStatus
Oct 10, 00:0010.7N 116.3EMixed
Oct 10, 06:0011.0N 116.8E1004 mbMixed
Oct 10, 12:0011.2N 117.0E1004 mbMixed
Oct 10, 18:0011.3N 116.9E1004 mbMixed
Oct 11, 00:0011.3N 116.4E1004 mbMixed
Oct 11, 06:0011.5N 116.2E25 kt1004 mbMixed
Oct 11, 12:0011.4N 114.6E25 kt1004 mbTropical storm
Oct 11, 18:0011.9N 113.0E30 kt1000 mbTropical storm
Oct 12, 00:0012.1N 111.6E35 kt996 mbTropical storm
Oct 12, 06:0012.5N 110.1E40 kt996 mbTropical storm
Oct 12, 12:0012.5N 108.6E30 kt998 mbTropical storm
Oct 12, 18:0013.0N 107.5E25 kt1000 mbTropical storm
Oct 13, 00:0013.6N 106.9E20 kt1002 mbTropical storm
Oct 13, 06:0013.4N 106.7E1004 mbMixed
Oct 13, 12:0013.4N 106.3E1004 mbTropical storm
Oct 13, 18:0013.6N 106.0E1004 mbTropical storm
Oct 14, 00:0014.0N 106.0E1004 mbTropical storm
Oct 14, 06:0014.5N 105.5E1006 mbTropical storm
Oct 14, 12:0015.0N 105.0E1007 mbTropical storm
Oct 14, 18:0015.5N 104.5E1008 mbTropical storm
Oct 15, 00:0016.0N 104.0E1008 mbTropical storm
Oct 15, 06:0016.5N 103.5E1009 mbExtratropical

Other Western Pacific storms of 1984

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.