2018 Western Pacific typhoon season

Typhoon Trami 2018

Trami slowed after reaching Category 5 strength, then accelerated northeastward into Japan. It arrived while parts of the country were still recovering from Typhoon Jebi earlier that month.

PEAK INTENSITYCategory 5
Satellite image of Trami 2018
AHI image captured by the Japan Meteorological Agency's Himawari-8 satellite. public domain Source
Trami 2018: TRAMI infrared satellite image, 2018-09-25T03:00:00Z
Digital Typhoon, National Institute of Informatics (doi:10.20783/DIAS.664). CC BY 4.0 Source
TRAMI: complete recorded track, Sep 20, 2018–Oct 3, 2018Recorded track from Sep 20, 2018 to Oct 3, 2018. Colors show the recorded wind category. The highlighted position follows the replay controls.AUSTRALIAASIAINDIAFIJITONGAVANUATUNEW CALEDONIAMAURITIUSPacific OceanIndian OceanSep 21, 12:00 AM UTCSep 22, 12:00 AM UTCSep 23, 12:00 AM UTCSep 24, 12:00 AM UTCSep 25, 12:00 AM UTCSep 26, 12:00 AM UTCSep 27, 12:00 AM UTCSep 28, 12:00 AM UTCSep 29, 12:00 AM UTCSep 30, 12:00 AM UTCOct 1, 12:00 AM UTCOct 2, 12:00 AM UTCOct 3, 12:00 AM UTCPeak: Category 5SEP 20OCT 3

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DepressionTropical stormCat 1Cat 2Cat 3Cat 4Cat 5Post-tropical
Wind speed 161 mphPressure 914 mb
09001009602001020mphmbSep 20Sep 24Sep 29Oct 3
Forward speed 6 mphCumulative ACE 13.32 10⁴ kt²
003517.57035mph10⁴ kt²Sep 20Sep 24Sep 29Oct 3
Maximum sustained wind161 mph

161 mph

Minimum recorded pressure914 hPa

Sep 24, 2018 during the tropical stage

Recorded track duration13.5 days

Full archive record, including non-tropical stages if present

Approximate track distance5,540 mi

Along the recorded center positions

STORM HISTORY

A strong peak followed by a slow drift

Trami developed southeast of Guam on September 20, became a named storm the next day and reached typhoon strength on September 22. Archived sustained winds peaked at 140 knots late on September 24, placing the cyclone at Category 5 intensity.

The storm then slowed and drifted northward. Cooler water stirred up beneath the circulation reduced the energy available to it, and Trami weakened. It resumed faster movement and turned northeastward on September 29.

Another damaging Japan landfall

Trami struck near Tanabe in Wakayama Prefecture on September 30 and became extratropical the next day. More than 380,000 people evacuated, flights were canceled and transport services were disrupted. Four people died and hundreds were injured. Insured losses were estimated at 306 billion yen, approximately US$2.69 billion in 2018 dollars.

Further reading

NOAA IBTrACS v04r01 historical track archive

Wikipedia, Typhoon Trami (2018)

QUICK ANSWERS

Trami in brief

What was Typhoon Trami's highest wind speed?

161 mph, the highest one-minute sustained wind in its tropical stage, recorded on Sep 24, 2018, 06:00 PM UTC.

What category was Typhoon Trami?

Category 5 at its peak on the Saffir–Simpson one-minute wind scale, first reaching Category 5 on Sep 24, 2018, 03:00 PM UTC. Other agencies classify storms differently.

What was Typhoon Trami's lowest pressure?

914 mb, the minimum central pressure recorded during its tropical stage, on Sep 24, 2018, 06:00 PM UTC.

When did Typhoon Trami occur?

The archived track runs from Sep 20, 2018, 06:00 AM UTC to Oct 3, 2018, 06:00 PM UTC, with the tropical stage from Sep 20, 2018, 06:00 PM UTC to Sep 30, 2018, 11:00 AM UTC.

Where did Typhoon Trami form?

In the Western Pacific basin, in the 2018 season. Its first archived position is 12.4°N, 146.5°E on Sep 20, 2018, 06:00 AM UTC.

Did Typhoon Trami make landfall?

The archive places its center over land at 1 recorded position; the strongest is 82 mph on Sep 30, 2018, 11:00 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. Wind and category use US-agency records; minimum pressure is calculated during the tropical stage, with the archive's pressure source retained. Category 5 refers 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

NOAA IBTrACS archive and Field documentation

Sources & methodology