The 1971 season

Tropical Storm Judy (1971)

Tropical Storm Judy peaked at 45 kt in the Western Pacific between November 15, 1971 and November 19, 1971, with a lowest pressure of 1000 mb.

Track and intensity

The whole track of Tropical Storm Judy, colored by strength, with the other storms of the 1971 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
November 15, 1971 to November 19, 1971
Peak strength
Tropical Storm, 45 kt (52 mph)
Lowest pressure
1000 mb (29.53 inHg)
Landfall
No; closest approach 138 km (86 mi)
Accumulated cyclone energy
0.5
Identifier
WP351971

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
Nov 15, 00:005.5N 107.5E1004 mbTropical storm
Nov 15, 06:005.5N 108.1E1004 mbTropical storm
Nov 15, 12:005.4N 108.5E1000 mbTropical storm
Nov 15, 18:005.5N 109.5E45 kt1000 mbTropical storm
Nov 16, 00:005.4N 110.0E40 kt1000 mbTropical storm
Nov 16, 06:005.2N 110.5E35 kt1004 mbTropical storm
Nov 16, 12:004.8N 110.7E1004 mbTropical storm
Nov 16, 18:004.6N 110.9E1006 mbTropical storm
Nov 17, 00:004.3N 111.1E1006 mbTropical storm
Nov 17, 06:004.0N 111.2E1006 mbTropical storm
Nov 17, 12:004.4N 111.0E1006 mbTropical storm
Nov 17, 18:005.3N 110.6E1006 mbTropical storm
Nov 18, 00:005.8N 110.2E1006 mbTropical storm
Nov 18, 06:006.6N 109.8E1006 mbTropical storm
Nov 18, 12:007.0N 109.5E1006 mbTropical storm
Nov 18, 18:007.3N 108.9E1006 mbTropical storm
Nov 19, 00:007.2N 108.4E1006 mbTropical storm

Other Western Pacific storms of 1971

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.