The 1946 season

Typhoon Opal (1946)

Typhoon Opal reached Category 3 in the Western Pacific between September 6, 1946 and September 14, 1946, and made landfall.

Track and intensity

The whole track of Typhoon Opal, colored by strength, with the other storms of the 1946 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 6, 1946 to September 14, 1946
Peak strength
Category 3, 100 kt (115 mph)
Landfall
Yes
Accumulated cyclone energy
16.3
Identifier
WP101946

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 6, 12:0012.3N 150.0ENot reported
Sep 6, 18:0012.6N 147.4ENot reported
Sep 7, 00:0012.9N 145.2ENot reported
Sep 7, 06:0012.7N 144.7E60 ktTropical storm
Sep 7, 12:0013.2N 142.9E60 ktTropical storm
Sep 7, 18:0013.6N 141.3E60 ktTropical storm
Sep 8, 00:0013.7N 140.2E80 ktTropical storm
Sep 8, 06:0013.7N 138.0E80 ktTropical storm
Sep 8, 12:0013.7N 136.1E80 ktTropical storm
Sep 8, 18:0013.7N 134.3E80 ktTropical storm
Sep 9, 00:0013.7N 132.3E80 ktTropical storm
Sep 9, 06:0013.8N 131.0E80 ktTropical storm
Sep 9, 12:0013.8N 129.5E80 ktTropical storm
Sep 9, 18:0014.0N 127.7E90 ktTropical storm
Sep 10, 00:0014.6N 125.9E100 ktTropical storm
Sep 10, 06:0015.0N 124.4E100 ktTropical storm
Sep 10, 12:0015.8N 123.0E90 ktTropical storm
Sep 10, 18:0016.8N 121.2E80 ktTropical storm
Sep 11, 00:0017.8N 119.4E80 ktTropical storm
Sep 11, 06:0018.5N 118.0E90 ktTropical storm
Sep 11, 12:0019.1N 116.7E90 ktTropical storm
Sep 11, 18:0019.9N 115.1E90 ktTropical storm
Sep 12, 00:0020.8N 113.9E90 ktTropical storm
Sep 12, 06:0021.9N 112.5E90 ktTropical storm
Sep 12, 12:0020.0N 110.0E75 ktTropical storm
Sep 12, 18:0020.1N 109.0E65 ktTropical storm
Sep 13, 00:0020.2N 108.0E60 ktTropical storm
Sep 13, 06:0020.5N 106.0E45 ktTropical storm
Sep 13, 12:0020.0N 105.0E40 ktTropical storm
Sep 13, 18:0021.0N 104.0E35 ktTropical storm
Sep 14, 00:0022.0N 103.5E30 ktTropical storm

Other Western Pacific storms of 1946

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.