The 2021 season

Tropical Storm Imogen (2021)

Tropical Storm Imogen peaked at 45 kt in the South Pacific between January 1, 2021 and January 4, 2021, with a lowest pressure of 994 mb, and made landfall.

Track and intensity

The whole track of Tropical Storm Imogen, colored by strength, with the other storms of the 2021 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
January 1, 2021 to January 4, 2021
Peak strength
Tropical Storm, 45 kt (52 mph)
Lowest pressure
994 mb (29.35 inHg)
Landfall
Yes
Accumulated cyclone energy
0.6
Tropical-storm-force wind reached
70 nmi (130 km, 81 mi) from the center at its widest
Eyewall radius at its peak
35 nmi (65 km, 40 mi)
Overall size
150 nmi (278 km, 173 mi) to the outermost closed isobar
Fastest the center moved
14 kt (16 mph)
Identifier
SH092021

Deaths and damage

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

Track

Time (UTC)PositionWindPressureStatus
Jan 1, 00:0013.8S 136.4E15 kt1004 mbTropical storm
Jan 1, 06:0014.1S 136.7E15 kt1003 mbTropical storm
Jan 1, 12:0014.7S 136.9E20 kt1002 mbTropical storm
Jan 1, 18:0014.9S 136.9E20 kt1000 mbTropical storm
Jan 2, 00:0015.0S 137.0E20 kt1000 mbTropical storm
Jan 2, 06:0015.0S 137.1E25 kt998 mbTropical depression
Jan 2, 12:0015.5S 138.3E25 kt1000 mbTropical depression
Jan 2, 18:0015.9S 138.6E30 kt998 mbTropical depression
Jan 3, 00:0016.2S 139.2E35 kt996 mbTropical storm
Jan 3, 06:0016.6S 139.8E40 kt994 mbTropical storm
Jan 3, 12:0017.4S 140.8E45 kt995 mbTropical storm
Jan 3, 18:0017.7S 141.5E40 kt997 mbTropical storm
Jan 4, 00:0017.8S 142.1E30 kt1000 mbTropical depression
Jan 4, 06:0017.9S 142.7E25 kt997 mbTropical depression

Other South Pacific storms of 2021

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.