The 1971 season

Super Typhoon Lucy (1971)

Super Typhoon Lucy reached Category 4 in the Western Pacific between July 11, 1971 and July 24, 1971, with a lowest pressure of 910 mb, and made landfall.

Track and intensity

The whole track of Super Typhoon Lucy, colored by strength, with the other storms of the 1971 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 11, 1971 to July 24, 1971
Peak strength
Category 4, 130 kt (150 mph)
Lowest pressure
910 mb (26.87 inHg)
Landfall
Yes
Accumulated cyclone energy
20.7
Identifier
WP161971

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
Jul 11, 00:007.0N 153.0ETropical storm
Jul 11, 06:007.2N 151.7ETropical storm
Jul 11, 12:007.4N 150.5ETropical storm
Jul 11, 18:007.6N 149.7ETropical storm
Jul 12, 00:007.8N 149.0ETropical storm
Jul 12, 06:008.1N 148.2ETropical storm
Jul 12, 12:008.5N 147.5ETropical storm
Jul 12, 18:009.0N 146.7ETropical storm
Jul 13, 00:009.5N 146.0ETropical storm
Jul 13, 06:0010.3N 145.2E1006 mbMixed
Jul 13, 12:0011.3N 144.3E1006 mbTropical storm
Jul 13, 18:0011.8N 143.7E1006 mbTropical storm
Jul 14, 00:0012.4N 143.0E1006 mbTropical storm
Jul 14, 06:0013.2N 142.2E1006 mbTropical storm
Jul 14, 12:0013.9N 141.3E1006 mbTropical storm
Jul 14, 18:0014.4N 140.2E1006 mbTropical storm
Jul 15, 00:0015.1N 139.3E1006 mbTropical storm
Jul 15, 06:0015.5N 138.0E1006 mbTropical storm
Jul 15, 12:0015.5N 136.6E1006 mbTropical storm
Jul 15, 18:0015.2N 135.5E1004 mbTropical storm
Jul 16, 00:0015.0N 134.5E1004 mbTropical storm
Jul 16, 06:0015.0N 133.2E45 kt1000 mbTropical storm
Jul 16, 12:0015.1N 132.5E50 kt990 mbTropical storm
Jul 16, 18:0015.1N 132.0E55 kt985 mbTropical storm
Jul 17, 00:0015.1N 131.7E60 kt980 mbTropical storm
Jul 17, 06:0015.2N 131.2E65 kt975 mbTropical storm
Jul 17, 12:0015.3N 130.6E70 kt970 mbTropical storm
Jul 17, 18:0015.6N 129.9E75 kt960 mbTropical storm
Jul 18, 00:0015.9N 129.3E85 kt945 mbTropical storm
Jul 18, 06:0016.4N 128.6E100 kt935 mbTropical storm
Jul 18, 12:0016.8N 127.9E115 kt925 mbTropical storm
Jul 18, 18:0017.4N 127.1E125 kt920 mbTropical storm
Jul 19, 00:0017.8N 126.2E125 kt915 mbTropical storm
Jul 19, 06:0018.3N 125.5E130 kt910 mbTropical storm
Jul 19, 12:0018.6N 124.7E120 kt920 mbTropical storm
Jul 19, 18:0019.0N 123.7E115 kt930 mbTropical storm
Jul 20, 00:0019.4N 122.9E110 kt935 mbTropical storm
Jul 20, 06:0019.8N 122.2E105 kt935 mbTropical storm
Jul 20, 12:0020.4N 121.0E100 kt940 mbTropical storm
Jul 20, 18:0020.7N 119.6E95 kt950 mbTropical storm
Jul 21, 00:0021.0N 118.5E90 kt955 mbTropical storm
Jul 21, 06:0021.3N 117.6E85 kt960 mbTropical storm
Jul 21, 12:0021.5N 116.6E75 kt960 mbTropical storm
Jul 21, 18:0021.8N 115.8E70 kt960 mbTropical storm
Jul 22, 00:0022.3N 115.0E60 kt960 mbTropical storm
Jul 22, 06:0022.6N 113.8E45 kt980 mbTropical storm
Jul 22, 12:0022.8N 112.5E35 kt986 mbTropical storm
Jul 22, 18:0023.1N 110.0E988 mbTropical storm
Jul 23, 00:0023.3N 108.2E988 mbMixed
Jul 23, 06:0022.7N 107.3E990 mbMixed
Jul 23, 12:0022.3N 105.7E992 mbMixed
Jul 23, 18:0022.4N 104.0E994 mbMixed
Jul 24, 00:0022.6N 102.0E996 mbTropical storm
Jul 24, 06:0022.7N 100.4E996 mbTropical storm

Other Western Pacific storms of 1971

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.