1959 Western Pacific typhoon season

Typhoon Joan 1959

Typhoon Joan crossed Taiwan as an exceptionally intense storm in August 1959, then reached mainland China. Wind and flooding destroyed thousands of homes in Taiwan, while later rainfall overflowed rivers in Korea. Its broad circulation affected communities far beyond the eye's path.

PEAK INTENSITYCategory 5
JOAN: complete recorded track, Aug 23, 1959–Sep 2, 1959Recorded track from Aug 23, 1959 to Sep 2, 1959. Colors show the recorded wind category. The highlighted position follows the replay controls.ASIAPHILIPPINESAug 24, 12:00 AM UTCAug 25, 12:00 AM UTCAug 26, 12:00 AM UTCAug 27, 12:00 AM UTCAug 28, 12:00 AM UTCAug 29, 12:00 AM UTCAug 30, 12:00 AM UTCAug 31, 12:00 AM UTCSep 1, 12:00 AM UTCSep 2, 12:00 AM UTCPeak: Category 5AUG 23SEP 2

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DepressionTropical stormCat 1Cat 2Cat 3Cat 4Cat 5Post-tropical
Wind speed 196 mphPressure 900 mb
08801009502001020mphmbAug 23Aug 27Aug 30Sep 2
Forward speed 17 mphCumulative ACE 21.65 10⁴ kt²
0020154030mph10⁴ kt²Aug 23Aug 27Aug 30Sep 2
Maximum sustained wind196 mph

196 mph

Minimum recorded pressure885 hPa

Aug 29, 1959 during the tropical stage

Recorded track duration10 days

Full archive record, including non-tropical stages if present

Approximate track distance4,200 mi

Along the recorded center positions

STORM HISTORY

An intense approach to Taiwan

Joan strengthened over the western Pacific while moving northwest. The archive records a minimum pressure of 885 hPa at 00:00 UTC on 29 August and peak one-minute winds of 170 kt six hours later. Its strongest sampled center-over-land observation carries 148 kt that afternoon, still within Category 5.

Taiwan's mountains weakened Joan as the center crossed the island. It continued onto the Chinese mainland on 30 August and declined inland. The historical account describes a very large storm, with damaging winds extending hundreds of kilometers from the center.

Damage from Taiwan to Korea

Joan destroyed 3,308 homes in Taiwan and caused extensive crop damage. In China, reports recorded three deaths and 57 injuries. Authorities evacuated about 50,000 homes in Fuzhou as the typhoon approached.

Rain associated with Joan also flooded rivers on the Korean Peninsula. Seventeen people died, 21 suffered injuries and about 7,000 lost their homes. The archived track continues through 2 September, beyond the end of its tropical phase on 31 August.

Further reading

NOAA IBTrACS v04r01 historical track archive

Wikipedia, 1959 Pacific typhoon season, Joan section

QUICK ANSWERS

Joan in brief

What was Typhoon Joan's highest wind speed?

196 mph, the highest one-minute sustained wind in its tropical stage, recorded on Aug 29, 1959, 06:00 AM UTC.

What category was Typhoon Joan?

Category 5 at its peak on the Saffir–Simpson one-minute wind scale, first reaching Category 5 on Aug 28, 1959, 09:00 AM UTC. Other agencies classify storms differently.

What was Typhoon Joan's lowest pressure?

885 mb, the minimum central pressure recorded during its tropical stage, on Aug 29, 1959, 12:00 AM UTC.

When did Typhoon Joan occur?

The archived track runs from Aug 23, 1959, 06:00 PM UTC to Sep 2, 1959, 06:00 PM UTC, with the tropical stage from Aug 23, 1959, 06:00 PM UTC to Aug 31, 1959, 03:00 PM UTC.

Where did Typhoon Joan form?

In the Western Pacific basin, in the 1959 season. Its first archived position is 12°N, 139.4°E on Aug 23, 1959, 06:00 PM UTC.

Did Typhoon Joan make landfall?

The archive places its center over land at 2 recorded positions; the strongest is 170 mph on Aug 29, 1959, 03:00 PM 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