2026 South Pacific cyclone season
Tropical Storm Koji 2026
Recorded track and intensity from Jan 7, 2026 to Jan 14, 2026
This storm's record is provisional and may be revised as the archive is updated.
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52 mph
Jan 10, 2026 during the tropical stage
Full archive record, including non-tropical stages if present
Along the recorded center positions
STORM HISTORY
Track and intensity summary
Koji is listed in the South Pacific basin for the 2026 season. Its archived track begins on Jan 7, 2026, 12:00 AM UTC at 15.3°S, 152.2°E. US-agency wind is not available for this first observation. These dates describe the available observations, which may include stages before and after the tropical cyclone phase.
The highest recorded tropical-stage one-minute sustained wind is 52 mph, first recorded on Jan 10, 2026, 12:00 PM UTC at 18°S, 148°E. The minimum recorded tropical-stage central pressure is 987 hPa on Jan 10, 2026, 06:00 PM UTC.
The full record spans 186 hours and approximately 1,400 mi along the recorded center positions. The last recorded position is 19.6°S, 139.6°E on Jan 14, 2026, 06:00 PM UTC.
QUICK ANSWERS
Koji in brief
What was Tropical Storm Koji's highest wind speed?
52 mph, the highest one-minute sustained wind in its tropical stage, recorded on Jan 10, 2026, 12:00 PM UTC.
What category was Tropical Storm Koji?
Tropical Storm Koji is not recorded at hurricane strength on the Saffir–Simpson scale in this archive.
What was Tropical Storm Koji's lowest pressure?
987 mb, the minimum central pressure recorded during its tropical stage, on Jan 10, 2026, 06:00 PM UTC.
When did Tropical Storm Koji occur?
The archived track runs from Jan 7, 2026, 12:00 AM UTC to Jan 14, 2026, 06:00 PM UTC, with the tropical stage from Jan 7, 2026, 12:00 AM UTC to Jan 14, 2026, 06:00 PM UTC.
Where did Tropical Storm Koji form?
In the South Pacific basin, in the 2026 season. Its first recorded position is 15.3°S, 152.2°E on Jan 7, 2026, 12:00 AM UTC.
Did Tropical Storm Koji make landfall?
The archive places its center over land at 1 recorded position; the strongest is 40 mph on Jan 11, 2026, 12:00 AM UTC. Positions are six-hourly, so this is not a landfall chronology.
METHODOLOGY
Data sources and limitations
The map and summary are generated from NOAA's IBTrACS v04r01 archive, with provisional positions from the JTWC operational best track; post-season analysis revises them. Wind and category use US-agency records; minimum pressure is calculated during the tropical stage, with the archive's pressure source retained. Categories refer to the Saffir–Simpson one-minute wind scale; local agencies may use different classifications. Coastlines use Natural Earth's 1:10m land data.
Track distance adds great-circle distances between consecutive observations, excluding gaps over 12 hours. This track has no gaps over 12 hours. The line shows the storm's center, not its size, rainfall or flood extent. Converted wind speeds are rounded to the nearest whole unit.
Archive retrieved ; live tracks fetched
NOAA IBTrACS archive and Field documentation
Sources & methodology