1971 Western Pacific typhoon season
Typhoon Nadine 1971
Typhoon Nadine struck eastern Taiwan in July 1971 after rapidly intensifying over the Philippine Sea. Flooding caused heavy damage on the island before the weakening storm continued into China.
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173 mph
Jul 24, 1971 during the tropical stage
Full archive record, including non-tropical stages if present
Along the recorded center positions
STORM HISTORY
Rapid intensification toward Taiwan
Nadine's archived track begins southwest of Guam on 19 July. The system organized as it moved northwest over the Philippine Sea. Its peak one-minute winds reached 150 kt on 24 July, with a minimum central pressure of 900 hPa at the same time.
The typhoon weakened from that peak while maintaining its northwestward course. It reached eastern Taiwan on 25 July, still carrying strong winds and heavy rain, then crossed toward China.
Flooding and casualties in Taiwan
Nadine caused heavy flood damage in Taiwan. The reported toll was 28 deaths, with another 25 people missing. The storm was also associated with the crash of a Pan American cargo aircraft in which all four crew members died.
The circulation weakened over China after the Taiwan crossing. Its tropical stage ended on 26 July, and the archived track continues into the following day.
Further reading
QUICK ANSWERS
Nadine in brief
What was Typhoon Nadine's highest wind speed?
173 mph, the highest one-minute sustained wind in its tropical stage, recorded on Jul 24, 1971, 06:00 AM UTC.
What category was Typhoon Nadine?
Category 5 at its peak on the Saffir–Simpson one-minute wind scale, first reaching Category 5 on Jul 23, 1971, 03:00 PM UTC. Other agencies classify storms differently.
What was Typhoon Nadine's lowest pressure?
900 mb, the minimum central pressure recorded during its tropical stage, on Jul 24, 1971, 06:00 AM UTC.
When did Typhoon Nadine occur?
The archived track runs from Jul 19, 1971, 12:00 AM UTC to Jul 27, 1971, 12:00 PM UTC, with the tropical stage from Jul 20, 1971, 12:00 AM UTC to Jul 26, 1971, 03:00 PM UTC.
Where did Typhoon Nadine form?
In the Western Pacific basin, in the 1971 season. Its first archived position is 11.3°N, 143.8°E on Jul 19, 1971, 12:00 AM UTC.
Did Typhoon Nadine make landfall?
The archive places its center over land at 2 recorded positions; the strongest is 104 mph on Jul 25, 1971, 06:00 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