The 2026 season

Unnamed tropical storm (2026)

Unnamed tropical storm peaked at 39 kt in the South Pacific between December 5, 2025 and December 6, 2025, with a lowest pressure of 999 mb.

Track and intensity

The whole track of Unnamed tropical storm, colored by strength, with the other storms of the 2026 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
South Pacific
Dates
December 5, 2025 to December 6, 2025
Peak strength
Tropical Storm, 39 kt (45 mph)
Lowest pressure
999 mb (29.50 inHg)
Landfall
No; closest approach 2429 km (1509 mi)
Accumulated cyclone energy
0.8
Identifier
SH062026

Deaths and damage

No source this site reads carries a casualty or damage figure for this storm.

Track

Time (UTC)PositionWindPressureStatus
Dec 5, 00:0013.9S 149.7W35 kt1002 mbNot reported
Dec 5, 06:0015.0S 148.8W39 kt1001 mbNot reported
Dec 5, 12:0016.0S 148.0W39 kt999 mbNot reported
Dec 5, 18:0017.4S 147.1W39 kt999 mbNot reported
Dec 6, 00:0018.7S 147.0W35 kt1000 mbNot reported
Dec 6, 06:0020.2S 146.5W35 kt1000 mbNot reported

Other South Pacific storms of 2026

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.