The 1956 season

Typhoon Ivy (1956)

Typhoon Ivy reached Category 1 in the Western Pacific between September 22, 1956 and September 27, 1956, with a lowest pressure of 990 mb.

Track and intensity

The whole track of Typhoon Ivy, colored by strength, with the other storms of the 1956 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 22, 1956 to September 27, 1956
Peak strength
Category 1, 65 kt (75 mph)
Lowest pressure
990 mb (29.23 inHg)
Landfall
No; closest approach 222 km (138 mi)
Accumulated cyclone energy
4.0
Identifier
WP161956

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 22, 18:0025.5N 141.0E1010 mbMixed
Sep 23, 00:0026.4N 141.4E40 kt1006 mbTropical storm
Sep 23, 06:0027.3N 142.5E40 kt1002 mbTropical storm
Sep 23, 12:0027.2N 143.8E40 kt998 mbTropical storm
Sep 23, 18:0027.2N 145.1E40 kt994 mbTropical storm
Sep 24, 00:0027.3N 146.5E45 kt990 mbTropical storm
Sep 24, 06:0027.5N 148.7E35 kt990 mbTropical storm
Sep 24, 12:0027.5N 150.4E35 kt990 mbTropical storm
Sep 24, 18:0026.9N 150.8E40 kt990 mbTropical storm
Sep 25, 00:0026.1N 150.5E50 kt1000 mbMixed
Sep 25, 06:0025.7N 149.9E55 ktTropical storm
Sep 25, 12:0025.2N 149.0E55 ktTropical storm
Sep 25, 18:0025.3N 148.0E60 ktTropical storm
Sep 26, 00:0025.9N 146.8E60 kt1000 mbTropical storm
Sep 26, 06:0026.7N 145.7E65 kt990 mbTropical storm
Sep 26, 12:0028.0N 144.5E50 kt990 mbTropical storm
Sep 26, 18:0029.3N 143.7E50 kt990 mbTropical storm
Sep 27, 00:0031.0N 143.2E50 kt1000 mbTropical storm
Sep 27, 06:0033.0N 143.1E1000 mbTropical storm
Sep 27, 12:0035.0N 143.2E1000 mbTropical storm

Other Western Pacific storms of 1956

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.