The 1989 season

Super Typhoon Andy (1989)

Super Typhoon Andy reached Category 5 in the Western Pacific between April 13, 1989 and April 25, 1989, with a lowest pressure of 920 mb.

Track and intensity

The whole track of Super Typhoon Andy, colored by strength, with the other storms of the 1989 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
April 13, 1989 to April 25, 1989
Peak strength
Category 5, 140 kt (161 mph)
Lowest pressure
920 mb (27.17 inHg)
Landfall
No; closest approach 1103 km (685 mi)
Accumulated cyclone energy
22.3
Identifier
WP021989

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
Apr 13, 00:007.0N 154.0E20 ktTropical storm
Apr 13, 06:007.1N 153.7E20 ktTropical storm
Apr 13, 12:007.1N 153.4E20 ktTropical storm
Apr 13, 18:007.2N 153.2E25 ktTropical storm
Apr 14, 00:007.2N 152.9E25 ktTropical storm
Apr 14, 06:007.3N 152.7E25 ktTropical storm
Apr 14, 12:007.3N 152.4E25 ktTropical storm
Apr 14, 18:007.4N 152.2E25 ktTropical storm
Apr 15, 00:007.4N 151.9E25 ktTropical storm
Apr 15, 06:007.4N 151.6E25 ktTropical storm
Apr 15, 12:007.5N 151.3E25 ktTropical storm
Apr 15, 18:007.5N 151.0E25 ktTropical storm
Apr 16, 00:007.5N 150.7E25 ktTropical storm
Apr 16, 06:007.5N 150.3E25 ktTropical storm
Apr 16, 12:007.5N 149.8E25 ktTropical storm
Apr 16, 18:007.6N 149.4E30 ktTropical storm
Apr 17, 00:007.7N 148.9E30 kt1002 mbTropical storm
Apr 17, 06:007.8N 148.3E30 kt1002 mbTropical storm
Apr 17, 12:008.0N 147.7E35 kt1002 mbTropical storm
Apr 17, 18:008.1N 147.0E35 kt1000 mbTropical storm
Apr 18, 00:008.7N 146.4E40 kt998 mbTropical storm
Apr 18, 06:009.2N 145.9E45 kt996 mbTropical storm
Apr 18, 12:009.6N 145.3E45 kt994 mbTropical storm
Apr 18, 18:009.7N 144.5E50 kt992 mbTropical storm
Apr 19, 00:009.7N 143.9E55 kt990 mbTropical storm
Apr 19, 06:009.7N 143.5E60 kt985 mbTropical storm
Apr 19, 12:009.9N 143.3E70 kt980 mbTropical storm
Apr 19, 18:0010.1N 143.3E75 kt975 mbTropical storm
Apr 20, 00:0010.5N 143.5E85 kt970 mbTropical storm
Apr 20, 06:0010.9N 143.8E100 kt960 mbTropical storm
Apr 20, 12:0011.5N 144.1E120 kt945 mbTropical storm
Apr 20, 18:0012.0N 145.0E135 kt930 mbTropical storm
Apr 21, 00:0012.6N 145.9E140 kt920 mbTropical storm
Apr 21, 06:0013.4N 146.9E140 kt920 mbTropical storm
Apr 21, 12:0014.2N 148.2E140 kt920 mbTropical storm
Apr 21, 18:0015.4N 149.4E135 kt920 mbTropical storm
Apr 22, 00:0016.4N 150.5E130 kt925 mbTropical storm
Apr 22, 06:0017.4N 151.5E120 kt930 mbTropical storm
Apr 22, 12:0018.5N 152.5E110 kt940 mbTropical storm
Apr 22, 18:0019.6N 153.4E100 kt950 mbTropical storm
Apr 23, 00:0020.8N 154.3E85 kt960 mbTropical storm
Apr 23, 06:0021.6N 155.1E65 kt970 mbTropical storm
Apr 23, 12:0022.5N 155.6E45 kt975 mbTropical storm
Apr 23, 18:0023.4N 156.1E35 kt985 mbTropical storm
Apr 24, 00:0024.4N 156.7E30 kt990 mbTropical storm
Apr 24, 06:0025.4N 157.3E30 kt990 mbTropical storm
Apr 24, 12:0026.4N 158.2E30 kt992 mbTropical storm
Apr 24, 18:0027.4N 159.1E30 kt994 mbTropical storm
Apr 25, 00:0028.4N 160.0E30 kt996 mbTropical storm
Apr 25, 06:0029.6N 161.5E1000 mbTropical storm
Apr 25, 12:0031.3N 163.1E1004 mbTropical storm
Apr 25, 18:0033.5N 165.0E1006 mbTropical storm

Other Western Pacific storms of 1989

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.