SOUTH PACIFIC · 2026 SEASON
Tropical Storm Vaianu (2026)
Recorded track and intensity · 5 Apr 2026–9 Apr 2026
This storm’s record is provisional and may be revised as the archive is updated.
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US-agency wind unavailable
No pressure measurement · tropical stage
Full archive record, including non-tropical stages if present
Along the recorded center positions
STORM HISTORY
Track and intensity summary
Vaianu is listed in the South Pacific basin for the 2026 season. Its archived track begins on 5 Apr 2026, 00:00 UTC at 13.8°S, 171.8°E. The first observation lists sustained winds of 39 knots. These dates describe the available observations, which may include stages before and after the tropical cyclone phase.
A peak US-agency wind measurement is unavailable. No tropical-stage central pressure measurement is available in this record.
The full record spans 102 hours and approximately 1,700 kilometers along the recorded center positions. The last recorded position is 26.8°S, 179°E on 9 Apr 2026, 06:00 UTC.
This summary is calculated from the NOAA IBTrACS archive and the JTWC operational best track. The peak category, unclassified, describes the storm’s peak recorded wind intensity, not its intensity at landfall or the severity of impacts at any location. Landfall times, damage and casualties have not been independently reviewed for this page.
QUICK ANSWERS
Vaianu in brief
What was Tropical Storm Vaianu’s highest wind speed?
The archive holds no US-agency wind measurement for Tropical Storm Vaianu.
What category was Tropical Storm Vaianu?
Tropical Storm Vaianu is not recorded at hurricane strength on the Saffir–Simpson scale in this archive.
What was Tropical Storm Vaianu’s lowest pressure?
No tropical-stage central pressure is recorded for Tropical Storm Vaianu.
When did Tropical Storm Vaianu occur?
The archived track runs from 5 Apr 2026, 00:00 UTC to 9 Apr 2026, 06:00 UTC.
Where did Tropical Storm Vaianu form?
In the South Pacific basin, in the 2026 season. Its first recorded position is 13.8°S, 171.8°E on 5 Apr 2026, 00:00 UTC.
Did Tropical Storm Vaianu make landfall?
No archived position places Tropical Storm Vaianu’s center over land, but positions are six-hourly and a brief landfall can fall between them.
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 · Field documentation
Sources & methodology