The 1958 season

Unnamed tropical depression (1958)

Unnamed tropical depression peaked at unknown kt in the Western Pacific between July 19, 1958 and July 25, 1958, with a lowest pressure of 992 mb, and made landfall.

Track and intensity

The whole track of Unnamed tropical depression, colored by strength, with the other storms of the 1958 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 19, 1958 to July 25, 1958
Peak strength
Tropical Depression
Lowest pressure
992 mb (29.29 inHg)
Landfall
Yes
Accumulated cyclone energy
0.0
Identifier
1958200N18113

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 19, 06:0018.5N 112.5E1000 mbTropical storm
Jul 19, 12:0019.4N 113.8E1000 mbTropical storm
Jul 19, 18:0020.7N 113.0E998 mbTropical storm
Jul 20, 00:0019.6N 111.8E998 mbMixed
Jul 20, 06:0019.6N 112.7E998 mbMixed
Jul 20, 12:0019.8N 113.1E998 mbMixed
Jul 20, 18:0020.0N 113.4E998 mbTropical storm
Jul 21, 00:0020.7N 114.3E1000 mbTropical storm
Jul 21, 06:0021.1N 115.2E998 mbTropical storm
Jul 21, 12:0021.8N 116.0E992 mbTropical storm
Jul 21, 18:0022.5N 116.6E996 mbTropical storm
Jul 22, 00:0023.2N 117.2E994 mbTropical storm
Jul 22, 06:0023.3N 117.6E996 mbTropical storm
Jul 22, 12:0023.5N 118.0E998 mbTropical storm
Jul 22, 18:0023.8N 118.9E994 mbTropical storm
Jul 23, 00:0024.1N 119.0E994 mbTropical storm
Jul 23, 06:0024.8N 118.6E994 mbTropical storm
Jul 23, 12:0024.7N 118.9E993 mbTropical storm
Jul 23, 18:0024.5N 118.6E994 mbTropical storm
Jul 24, 00:0024.0N 117.7E996 mbMixed
Jul 24, 06:0024.5N 117.5E996 mbTropical storm
Jul 24, 12:0024.8N 117.5E998 mbTropical storm
Jul 24, 18:0024.9N 117.9E998 mbTropical storm
Jul 25, 00:0025.0N 118.0E1000 mbTropical storm

Other Western Pacific storms of 1958

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.