The 1955 season

Unnamed tropical storm (1955)

Unnamed tropical storm peaked at 50 kt in the Western Pacific between July 17, 1955 and July 23, 1955, with a lowest pressure of 990 mb.

Track and intensity

The whole track of Unnamed tropical storm, colored by strength, with the other storms of the 1955 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 17, 1955 to July 23, 1955
Peak strength
Tropical Storm, 50 kt (58 mph)
Lowest pressure
990 mb (29.23 inHg)
Landfall
No; closest approach 126 km (78 mi)
Accumulated cyclone energy
1.8
Identifier
WP091955

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 17, 00:0022.6N 137.3E1002 mbTropical storm
Jul 17, 06:0023.0N 138.2E1002 mbTropical storm
Jul 17, 12:0023.5N 139.1E1002 mbTropical storm
Jul 17, 18:0024.0N 139.8E1002 mbTropical storm
Jul 18, 00:0025.0N 142.0E40 kt1000 mbTropical storm
Jul 18, 06:0025.5N 141.5E45 kt996 mbTropical storm
Jul 18, 12:0026.0N 141.0E50 kt994 mbTropical storm
Jul 18, 18:0027.6N 141.5E50 kt990 mbTropical storm
Jul 19, 00:0029.0N 141.5E50 kt990 mbTropical storm
Jul 19, 06:0030.0N 140.5E45 kt1000 mbTropical storm
Jul 19, 12:0032.2N 140.0E45 kt1000 mbTropical storm
Jul 19, 18:0034.0N 142.0E40 kt1002 mbTropical storm
Jul 20, 00:0035.0N 143.0E35 kt1000 mbTropical storm
Jul 20, 06:0037.0N 143.0E1000 mbTropical storm
Jul 20, 12:0037.7N 144.9E1000 mbTropical storm
Jul 20, 18:0038.0N 146.8E998 mbTropical storm
Jul 21, 00:0038.8N 149.1E996 mbTropical storm
Jul 21, 06:0039.4N 152.0E994 mbTropical storm
Jul 21, 12:0040.0N 154.8E990 mbTropical storm
Jul 21, 18:0041.0N 157.3E990 mbMixed
Jul 22, 00:0041.6N 160.3E992 mbMixed
Jul 22, 06:0042.7N 163.2E998 mbMixed
Jul 22, 12:0044.0N 166.4E1000 mbExtratropical
Jul 22, 18:0044.9N 171.2E1002 mbExtratropical
Jul 23, 00:0047.0N 175.1E1004 mbExtratropical
Jul 23, 06:0047.7N 178.0E1004 mbExtratropical
Jul 23, 12:0048.6N 180.2EExtratropical

Other Western Pacific storms of 1955

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.