The 1990 season

Typhoon Percy (1990)

Typhoon Percy reached Category 4 in the Western Pacific between June 20, 1990 and July 1, 1990, with a lowest pressure of 950 mb, and made landfall.

Track and intensity

The whole track of Typhoon Percy, colored by strength, with the other storms of the 1990 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
June 20, 1990 to July 1, 1990
Peak strength
Category 4, 115 kt (132 mph)
Lowest pressure
950 mb (28.05 inHg)
Landfall
Yes
Accumulated cyclone energy
22.2
Identifier
WP071990

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
Jun 20, 00:0011.0N 148.3E20 ktNot reported
Jun 20, 06:0010.9N 147.7E20 kt1006 mbTropical storm
Jun 20, 12:0010.8N 147.4E25 kt1006 mbTropical storm
Jun 20, 18:0010.7N 147.0E25 kt1004 mbTropical storm
Jun 21, 00:0010.6N 146.6E30 kt1004 mbTropical storm
Jun 21, 06:0010.5N 146.0E35 kt1000 mbTropical storm
Jun 21, 12:0010.3N 145.1E35 kt998 mbTropical storm
Jun 21, 18:009.7N 144.3E35 kt994 mbTropical storm
Jun 22, 00:008.8N 143.6E35 kt990 mbTropical storm
Jun 22, 06:008.0N 143.0E40 kt985 mbTropical storm
Jun 22, 12:007.5N 142.5E45 kt980 mbTropical storm
Jun 22, 18:007.2N 141.8E50 kt980 mbTropical storm
Jun 23, 00:007.2N 141.1E55 kt980 mbTropical storm
Jun 23, 06:007.5N 140.2E60 kt980 mbTropical storm
Jun 23, 12:008.1N 139.1E65 kt975 mbTropical storm
Jun 23, 18:008.5N 137.9E70 kt970 mbTropical storm
Jun 24, 00:009.0N 136.6E80 kt970 mbTropical storm
Jun 24, 06:009.7N 135.1E85 kt965 mbTropical storm
Jun 24, 12:0010.4N 133.7E90 kt960 mbTropical storm
Jun 24, 18:0011.1N 132.4E100 kt955 mbTropical storm
Jun 25, 00:0011.7N 131.2E110 kt950 mbTropical storm
Jun 25, 06:0012.4N 130.0E115 kt950 mbTropical storm
Jun 25, 12:0013.1N 128.9E115 kt950 mbTropical storm
Jun 25, 18:0013.8N 127.8E110 kt950 mbTropical storm
Jun 26, 00:0014.6N 126.7E105 kt950 mbTropical storm
Jun 26, 06:0015.3N 125.7E105 kt950 mbTropical storm
Jun 26, 12:0015.9N 124.7E100 kt950 mbTropical storm
Jun 26, 18:0016.5N 123.8E100 kt950 mbTropical storm
Jun 27, 00:0017.2N 122.9E95 kt955 mbTropical storm
Jun 27, 06:0018.0N 122.0E85 kt965 mbTropical storm
Jun 27, 12:0019.0N 120.8E75 kt965 mbTropical storm
Jun 27, 18:0019.8N 119.8E75 kt965 mbTropical storm
Jun 28, 00:0020.5N 119.0E80 kt960 mbTropical storm
Jun 28, 06:0021.2N 118.5E80 kt960 mbTropical storm
Jun 28, 12:0021.9N 118.0E80 kt960 mbTropical storm
Jun 28, 18:0022.4N 117.7E80 kt965 mbTropical storm
Jun 29, 00:0022.9N 117.4E75 kt965 mbTropical storm
Jun 29, 06:0023.5N 117.2E70 kt975 mbTropical storm
Jun 29, 12:0024.1N 117.2E60 kt985 mbTropical storm
Jun 29, 18:0024.8N 117.3E45 kt990 mbTropical storm
Jun 30, 00:0025.7N 117.5E35 kt998 mbTropical storm
Jun 30, 06:0026.9N 118.0E25 ktDisturbance
Jun 30, 12:0028.0N 119.0E20 ktNot reported
Jun 30, 18:0029.3N 120.3E20 ktNot reported
Jul 1, 00:0030.1N 121.8E15 ktNot reported

Other Western Pacific storms of 1990

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.