The 1974 season

Tropical Storm Jenny (1974)

Tropical Storm Jenny peaked at 50 kt in the South Pacific between March 17, 1974 and March 31, 1974, with a lowest pressure of 988 mb, and made landfall.

Track and intensity

The whole track of Tropical Storm Jenny, colored by strength, with the other storms of the 1974 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
South Pacific
Dates
March 17, 1974 to March 31, 1974
Peak strength
Tropical Storm, 50 kt (58 mph), ten-minute wind
Lowest pressure
988 mb (29.18 inHg)
Landfall
Yes
Accumulated cyclone energy
1.4
Identifier
SH301974

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
Mar 17, 00:0012.3S 137.9E30 ktTropical storm
Mar 17, 06:0012.2S 137.4E30 kt995 mbTropical storm
Mar 17, 12:0012.1S 136.7E35 kt995 mbTropical storm
Mar 17, 18:0012.1S 135.9ETropical storm
Mar 18, 00:0012.3S 135.0ETropical storm
Mar 18, 06:0012.5S 134.1ETropical storm
Mar 18, 12:0012.7S 133.1ETropical storm
Mar 18, 18:0012.8S 132.2ETropical storm
Mar 19, 00:0012.9S 131.3E15 ktTropical storm
Mar 19, 06:0013.0S 130.5ETropical storm
Mar 19, 12:0013.0S 129.8ETropical storm
Mar 19, 18:0012.9S 129.3ETropical storm
Mar 20, 00:0012.8S 128.9E40 kt995 mbTropical storm
Mar 20, 06:0012.6S 128.7E40 kt995 mbTropical storm
Mar 20, 12:0012.5S 128.5E40 kt995 mbTropical storm
Mar 20, 18:0012.5S 128.3E40 kt995 mbTropical storm
Mar 21, 00:0012.4S 128.0E40 kt995 mbTropical storm
Mar 21, 06:0012.4S 127.8E40 kt995 mbTropical storm
Mar 21, 12:0012.3S 127.6E40 kt995 mbTropical storm
Mar 21, 18:0012.3S 127.4E35 kt995 mbTropical storm
Mar 22, 00:0012.2S 127.1E25 ktTropical storm
Mar 22, 06:0012.2S 126.8E25 ktTropical storm
Mar 22, 12:0012.1S 126.5E25 ktTropical storm
Mar 22, 18:0012.1S 126.2E25 ktTropical storm
Mar 23, 00:0012.0S 125.9E25 ktTropical storm
Mar 23, 06:0012.0S 125.3ETropical storm
Mar 23, 12:0012.0S 124.6ETropical storm
Mar 23, 18:0012.0S 124.4ETropical storm
Mar 24, 00:0012.1S 123.8ETropical storm
Mar 24, 06:0012.7S 122.2ETropical storm
Mar 24, 12:0013.4S 120.3ETropical storm
Mar 24, 18:0012.8S 118.4ETropical storm
Mar 25, 00:0012.3S 116.6ETropical storm
Mar 25, 06:0012.9S 115.0ETropical storm
Mar 25, 12:0013.6S 113.4ETropical storm
Mar 25, 18:0014.4S 111.8ETropical storm
Mar 26, 00:0015.1S 110.3ETropical storm
Mar 26, 06:0015.4S 109.3ETropical storm
Mar 26, 12:0015.7S 108.4ETropical storm
Mar 26, 18:0016.0S 107.2ETropical storm
Mar 27, 00:0016.4S 106.2ETropical storm
Mar 27, 06:0016.8S 105.8ETropical storm
Mar 27, 12:0017.3S 105.8ETropical storm
Mar 27, 18:0017.7S 105.8ETropical storm
Mar 28, 00:0018.1S 105.9ETropical storm
Mar 28, 06:0018.4S 106.1ETropical storm
Mar 28, 12:0018.8S 106.4ETropical storm
Mar 28, 18:0019.2S 106.7ETropical storm
Mar 29, 00:0019.7S 106.9ETropical storm
Mar 29, 06:0020.1S 107.1ETropical storm
Mar 29, 12:0020.4S 107.3ETropical storm
Mar 29, 18:0020.5S 107.5ETropical storm
Mar 30, 00:0020.7S 107.7ETropical storm
Mar 30, 06:0021.0S 107.9ETropical storm
Mar 30, 12:0021.4S 108.2ETropical storm
Mar 30, 18:0021.7S 108.4ETropical storm
Mar 31, 00:0021.9S 108.6ETropical storm

Other South Pacific storms of 1974

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. This storm’s winds are ten-minute averages from its regional agency. They read about 12 percent lower than the one-minute winds US agencies use, so a Saffir-Simpson category is not given for it.

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.