The 1970 season

Super Typhoon Olga (1970)

Super Typhoon Olga reached Category 5 in the Western Pacific between June 26, 1970 and July 7, 1970, with a lowest pressure of 905 mb, and made landfall.

Track and intensity

The whole track of Super Typhoon Olga, colored by strength, with the other storms of the 1970 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 26, 1970 to July 7, 1970
Peak strength
Category 5, 140 kt (161 mph)
Lowest pressure
905 mb (26.72 inHg)
Landfall
Yes
Accumulated cyclone energy
25.5
Identifier
WP021970

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 26, 12:007.0N 153.4EDisturbance
Jun 26, 18:007.0N 151.9EDisturbance
Jun 27, 00:007.1N 150.4EDisturbance
Jun 27, 06:007.3N 148.9EDisturbance
Jun 27, 12:007.6N 147.5EDisturbance
Jun 27, 18:008.0N 145.8E1008 mbMixed
Jun 28, 00:008.7N 144.1E1008 mbMixed
Jun 28, 06:009.5N 142.6E1006 mbTropical storm
Jun 28, 12:0010.4N 141.2E1006 mbTropical storm
Jun 28, 18:0011.4N 139.9E1002 mbTropical storm
Jun 29, 00:0011.7N 139.1E35 kt995 mbTropical storm
Jun 29, 06:0012.7N 137.0E50 kt985 mbTropical storm
Jun 29, 12:0013.1N 135.3E65 kt975 mbTropical storm
Jun 29, 18:0013.5N 133.9E75 kt965 mbTropical storm
Jun 30, 00:0014.0N 132.9E85 kt960 mbTropical storm
Jun 30, 06:0014.8N 131.8E90 kt955 mbTropical storm
Jun 30, 12:0015.8N 131.1E95 kt945 mbTropical storm
Jun 30, 18:0016.8N 130.2E105 kt935 mbTropical storm
Jul 1, 00:0017.7N 128.9E130 kt910 mbTropical storm
Jul 1, 06:0018.5N 127.7E135 kt905 mbTropical storm
Jul 1, 12:0019.3N 126.8E140 kt905 mbTropical storm
Jul 1, 18:0020.1N 126.1E140 kt910 mbTropical storm
Jul 2, 00:0020.9N 125.7E135 kt910 mbTropical storm
Jul 2, 06:0021.8N 125.3E125 kt920 mbTropical storm
Jul 2, 12:0022.6N 125.1E125 kt935 mbTropical storm
Jul 2, 18:0023.3N 124.9E115 kt945 mbTropical storm
Jul 3, 00:0024.2N 125.0E100 kt955 mbTropical storm
Jul 3, 06:0025.2N 125.3E95 kt960 mbTropical storm
Jul 3, 12:0026.0N 125.6E90 kt955 mbTropical storm
Jul 3, 18:0026.9N 126.0E85 kt950 mbTropical storm
Jul 4, 00:0027.8N 127.0E80 kt950 mbTropical storm
Jul 4, 06:0028.5N 128.7E75 kt960 mbTropical storm
Jul 4, 12:0029.4N 130.3E70 kt965 mbTropical storm
Jul 4, 18:0030.6N 132.1E70 kt965 mbTropical storm
Jul 5, 00:0031.9N 134.0E65 kt955 mbTropical storm
Jul 5, 06:0032.8N 135.0E65 kt955 mbTropical storm
Jul 5, 12:0033.9N 135.7E50 kt970 mbTropical storm
Jul 5, 18:0035.2N 135.1E45 kt985 mbTropical storm
Jul 6, 00:0036.2N 133.5E30 kt990 mbMixed
Jul 6, 06:0036.9N 130.7E990 mbExtratropical
Jul 6, 12:0036.0N 128.7E996 mbExtratropical
Jul 6, 18:0034.9N 127.3E998 mbExtratropical
Jul 7, 00:0033.9N 127.0E1000 mbExtratropical
Jul 7, 06:0033.0N 127.0E1000 mbExtratropical

Other Western Pacific storms of 1970

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.