The 1970 season

Super Typhoon Hope (1970)

Super Typhoon Hope reached Category 5 in the Western Pacific between September 18, 1970 and September 30, 1970, with a lowest pressure of 900 mb.

Track and intensity

The whole track of Super Typhoon Hope, 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
September 18, 1970 to September 30, 1970
Peak strength
Category 5, 150 kt (173 mph)
Lowest pressure
900 mb (26.58 inHg)
Landfall
No; closest approach 559 km (347 mi)
Accumulated cyclone energy
30.8
Identifier
WP151970

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
Sep 18, 12:0013.2N 175.0ETropical storm
Sep 18, 18:0013.3N 174.0ETropical storm
Sep 19, 00:0013.5N 173.0ETropical storm
Sep 19, 06:0013.5N 172.1E1007 mbTropical storm
Sep 19, 12:0013.4N 170.9E1004 mbTropical storm
Sep 19, 18:0013.7N 169.4E1002 mbTropical storm
Sep 20, 00:0013.9N 167.9E998 mbTropical storm
Sep 20, 06:0014.2N 166.5E45 kt998 mbTropical storm
Sep 20, 12:0014.2N 164.9E45 kt998 mbTropical storm
Sep 20, 18:0014.2N 163.3E50 kt998 mbTropical storm
Sep 21, 00:0014.3N 161.8E50 kt998 mbTropical storm
Sep 21, 06:0014.9N 160.4E55 kt998 mbTropical storm
Sep 21, 12:0015.1N 158.8E55 kt998 mbTropical storm
Sep 21, 18:0015.3N 157.3E65 kt998 mbTropical storm
Sep 22, 00:0015.5N 155.3E70 kt998 mbTropical storm
Sep 22, 06:0015.8N 154.2E80 kt985 mbTropical storm
Sep 22, 12:0016.4N 153.3E90 kt985 mbTropical storm
Sep 22, 18:0017.1N 152.3E85 kt980 mbTropical storm
Sep 23, 00:0017.7N 151.1E85 kt975 mbTropical storm
Sep 23, 06:0018.8N 150.0E95 kt960 mbTropical storm
Sep 23, 12:0019.8N 149.0E105 kt940 mbTropical storm
Sep 23, 18:0020.1N 148.2E125 kt910 mbTropical storm
Sep 24, 00:0020.8N 146.9E150 kt900 mbTropical storm
Sep 24, 06:0021.8N 146.0E135 kt910 mbTropical storm
Sep 24, 12:0023.1N 145.3E130 kt920 mbTropical storm
Sep 24, 18:0024.2N 144.5E125 kt930 mbTropical storm
Sep 25, 00:0025.3N 144.0E120 kt940 mbTropical storm
Sep 25, 06:0026.3N 143.1E110 kt945 mbTropical storm
Sep 25, 12:0027.3N 142.4E100 kt945 mbTropical storm
Sep 25, 18:0028.6N 142.2E95 kt950 mbTropical storm
Sep 26, 00:0029.7N 142.4E95 kt950 mbTropical storm
Sep 26, 06:0030.6N 143.1E100 kt955 mbTropical storm
Sep 26, 12:0031.3N 144.3E100 kt950 mbTropical storm
Sep 26, 18:0031.7N 145.6E95 kt950 mbTropical storm
Sep 27, 00:0032.3N 146.9E95 kt955 mbTropical storm
Sep 27, 06:0032.3N 148.1E90 kt960 mbTropical storm
Sep 27, 12:0032.6N 149.5E90 kt965 mbTropical storm
Sep 27, 18:0032.6N 151.0E85 kt965 mbTropical storm
Sep 28, 00:0032.5N 152.3E85 kt970 mbTropical storm
Sep 28, 06:0032.3N 153.7E80 kt970 mbTropical storm
Sep 28, 12:0031.9N 155.2E80 kt980 mbTropical storm
Sep 28, 18:0031.5N 155.9E65 kt990 mbTropical storm
Sep 29, 00:0031.0N 156.6E60 kt995 mbTropical storm
Sep 29, 06:0030.8N 156.5E50 kt1000 mbTropical storm
Sep 29, 12:0029.3N 156.6E1006 mbTropical storm
Sep 29, 18:0029.0N 155.7E1010 mbTropical storm
Sep 30, 00:0029.5N 154.6E1012 mbTropical storm
Sep 30, 06:0030.4N 153.8E1012 mbTropical storm
Sep 30, 12:0031.4N 153.3E1014 mbMixed

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.