Tropical Storm Irene (2023)
Tropical Storm Irene peaked at 55 kt in the South Pacific between January 15, 2023 and January 20, 2023, with a lowest pressure of 990 mb.
Track and intensity
The whole track of Tropical Storm Irene, colored by strength, with the other storms of the 2023 season in the same basin behind it, and its wind and pressure hour by hour. Every fix is in the track table below.
The storm
- Basin
- South Pacific
- Dates
- January 15, 2023 to January 20, 2023
- Peak strength
- Tropical Storm, 55 kt (63 mph)
- Lowest pressure
- 990 mb (29.23 inHg)
- Landfall
- No; closest approach 237 km (147 mi)
- Accumulated cyclone energy
- 1.1
- Identifier
- SH092023
Deaths and damage
No source this site reads carries a casualty or damage figure for this storm.
Track
| Time (UTC) | Position | Wind | Pressure | Status |
|---|---|---|---|---|
| Jan 15, 12:00 | 15.2S 159.6E | 15 kt | 1008 mb | Tropical storm |
| Jan 15, 18:00 | 15.3S 159.4E | Tropical storm | ||
| Jan 16, 00:00 | 15.5S 159.3E | 15 kt | 1008 mb | Tropical storm |
| Jan 16, 06:00 | 15.8S 159.3E | 20 kt | 1006 mb | Tropical storm |
| Jan 16, 12:00 | 16.1S 158.7E | 25 kt | 1006 mb | Tropical storm |
| Jan 16, 18:00 | 16.4S 157.5E | 25 kt | 1004 mb | Tropical depression |
| Jan 17, 00:00 | 17.2S 157.2E | 25 kt | 1003 mb | Tropical depression |
| Jan 17, 06:00 | 17.2S 158.4E | 30 kt | 1001 mb | Tropical depression |
| Jan 17, 12:00 | 17.4S 159.4E | 25 kt | 997 mb | Tropical depression |
| Jan 17, 18:00 | 17.7S 160.8E | 30 kt | 998 mb | Tropical depression |
| Jan 18, 00:00 | 17.7S 162.1E | 35 kt | 996 mb | Tropical storm |
| Jan 18, 06:00 | 18.0S 163.7E | 45 kt | 996 mb | Tropical storm |
| Jan 18, 12:00 | 18.4S 165.6E | 50 kt | 992 mb | Tropical storm |
| Jan 18, 18:00 | 19.0S 167.4E | 55 kt | 990 mb | Tropical storm |
| Jan 19, 00:00 | 19.6S 169.3E | 45 kt | 995 mb | Tropical storm |
| Jan 19, 06:00 | 21.3S 172.0E | 40 kt | 996 mb | Subtropical storm |
| Jan 19, 12:00 | 23.1S 174.3E | 35 kt | 998 mb | Subtropical storm |
| Jan 19, 18:00 | 25.1S 176.5E | 35 kt | 998 mb | Subtropical storm |
| Jan 20, 00:00 | 28.0S 179.1E | 35 kt | 1002 mb | Subtropical storm |
| Jan 20, 06:00 | 28.3S 179.8W | 30 kt | 1005 mb | Subtropical depression |
Other South Pacific storms of 2023
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.