Tropical Storm Sally (1970)

Tropical Storm Sally peaked at 40 kt in the Western Pacific between July 19, 1970 and July 24, 1970, with a lowest pressure of 992 mb.

Track and intensity

The whole track of Tropical Storm Sally, colored by strength, with the other storms of the 1970 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, 1970 to July 24, 1970
Peak strength: Tropical Storm, 40 kt (46 mph)
Lowest pressure: 992 mb (29.29 inHg)
Landfall: No; closest approach 1024 km (636 mi)
Accumulated cyclone energy: 0.6
Identifier: WP051970

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)	Position	Wind	Pressure	Status
Jul 19, 06:00	23.7N 161.5E		1006 mb	Mixed
Jul 19, 12:00	24.1N 162.0E		1006 mb	Mixed
Jul 19, 18:00	24.6N 162.5E		1006 mb	Mixed
Jul 20, 00:00	25.1N 162.9E		1004 mb	Tropical storm
Jul 20, 06:00	26.0N 162.2E	30 kt	1004 mb	Tropical storm
Jul 20, 12:00	26.8N 162.5E	30 kt	1002 mb	Tropical storm
Jul 20, 18:00	27.7N 162.2E	30 kt	1000 mb	Tropical storm
Jul 21, 00:00	28.6N 162.7E	30 kt	998 mb	Tropical storm
Jul 21, 06:00	29.8N 162.6E	40 kt	992 mb	Tropical storm
Jul 21, 12:00	31.1N 162.3E	40 kt	992 mb	Tropical storm
Jul 21, 18:00	32.2N 161.7E	40 kt	992 mb	Tropical storm
Jul 22, 00:00	33.1N 161.2E	40 kt	992 mb	Tropical storm
Jul 22, 06:00	34.7N 161.1E	30 kt	992 mb	Tropical storm
Jul 22, 12:00	36.1N 161.3E		992 mb	Tropical storm
Jul 22, 18:00	37.6N 162.5E		996 mb	Tropical storm
Jul 23, 00:00	39.1N 164.0E		1000 mb	Tropical storm
Jul 23, 06:00	40.8N 166.5E		1000 mb	Mixed
Jul 23, 12:00	42.0N 169.0E		1000 mb	Extratropical
Jul 23, 18:00	43.4N 171.6E		1000 mb	Extratropical
Jul 24, 00:00	45.0N 175.0E		998 mb	Extratropical
Jul 24, 06:00	47.0N 180.0E		998 mb	Extratropical

Other Western Pacific storms of 1970

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.