The 1990 season

Tropical Storm Tasha (1990)

Tropical Storm Tasha peaked at 55 kt in the Western Pacific between July 21, 1990 and August 1, 1990, with a lowest pressure of 980 mb, and made landfall.

Track and intensity

The whole track of Tropical Storm Tasha, colored by strength, with the other storms of the 1990 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 21, 1990 to August 1, 1990
Peak strength
Tropical Storm, 55 kt (63 mph)
Lowest pressure
980 mb (28.94 inHg)
Landfall
Yes
Accumulated cyclone energy
2.3
Identifier
WP101990

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 21, 06:0013.0N 130.0EDisturbance
Jul 21, 12:0013.5N 130.5ETropical storm
Jul 21, 18:0014.5N 130.8ETropical storm
Jul 22, 00:0015.0N 130.2ETropical storm
Jul 22, 06:0015.9N 126.9E20 ktTropical storm
Jul 22, 12:0016.0N 127.6E20 ktTropical storm
Jul 22, 18:0016.4N 128.4E20 ktTropical storm
Jul 23, 00:0017.0N 129.0E20 ktTropical storm
Jul 23, 06:0017.8N 129.0E20 ktTropical storm
Jul 23, 12:0018.6N 128.6E20 ktTropical storm
Jul 23, 18:0019.1N 127.7E20 ktTropical storm
Jul 24, 00:0019.5N 126.6E20 ktTropical storm
Jul 24, 06:0019.8N 125.8E20 ktTropical storm
Jul 24, 12:0020.0N 124.9E20 ktTropical storm
Jul 24, 18:0020.2N 124.0E20 ktTropical storm
Jul 25, 00:0020.3N 123.0E20 ktTropical storm
Jul 25, 06:0020.5N 121.6E20 ktNot reported
Jul 25, 12:0020.3N 120.6E20 ktNot reported
Jul 25, 18:0020.2N 119.9E20 ktNot reported
Jul 26, 00:0019.8N 119.5E20 ktNot reported
Jul 26, 06:0019.6N 119.5E20 ktNot reported
Jul 26, 12:0019.5N 119.6E20 kt1002 mbTropical storm
Jul 26, 18:0019.4N 119.6E20 kt1000 mbTropical storm
Jul 27, 00:0019.2N 119.5E20 kt1000 mbTropical storm
Jul 27, 06:0018.9N 119.3E25 kt1000 mbTropical storm
Jul 27, 12:0018.6N 119.1E25 kt1000 mbTropical storm
Jul 27, 18:0018.4N 118.7E25 kt1000 mbTropical storm
Jul 28, 00:0018.3N 118.3E25 kt996 mbTropical storm
Jul 28, 06:0018.4N 117.8E30 kt992 mbTropical storm
Jul 28, 12:0018.4N 117.3E35 kt990 mbTropical storm
Jul 28, 18:0018.4N 117.0E35 kt990 mbTropical storm
Jul 29, 00:0018.5N 116.6E40 kt990 mbTropical storm
Jul 29, 06:0018.5N 116.3E40 kt985 mbTropical storm
Jul 29, 12:0018.5N 116.3E45 kt985 mbTropical storm
Jul 29, 18:0018.6N 116.2E45 kt985 mbTropical storm
Jul 30, 00:0019.3N 116.1E45 kt980 mbTropical storm
Jul 30, 06:0020.3N 115.9E50 kt980 mbTropical storm
Jul 30, 12:0021.4N 115.8E50 kt980 mbTropical storm
Jul 30, 18:0022.5N 115.5E55 kt980 mbTropical storm
Jul 31, 00:0023.6N 115.2E45 kt985 mbTropical storm
Jul 31, 06:0024.6N 115.2E35 kt990 mbTropical storm
Jul 31, 12:0025.4N 115.4E25 kt996 mbTropical storm
Jul 31, 18:0026.1N 115.6E25 kt998 mbMixed
Aug 1, 00:0026.7N 116.1E20 kt1000 mbTropical storm

Other Western Pacific storms of 1990

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.