1997 Western Pacific typhoon season
Typhoon Nestor 1997
Typhoon Nestor reached Category 5 strength near the Mariana Islands in June 1997. A broad eye and annular structure distinguished its mature phase over the western Pacific.
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161 mph
Jun 10, 1997 during the tropical stage
Full archive record, including non-tropical stages if present
Along the recorded center positions
STORM HISTORY
Development near the Marshall Islands
Nestor began as an area of thunderstorms near the Marshall Islands in late May. A low-pressure circulation developed, and the archive starts tracking it on June 1. The system strengthened into a typhoon on June 7 as it approached the Mariana Islands.
A broad eye near peak strength
On June 10, Nestor reached maximum one-minute winds of 140 kt and a minimum central pressure of 930 hPa. During this Category 5 phase, it affected the Northern Mariana Islands and began showing annular characteristics, with a broad ring of thunderstorms around its eye.
Nestor weakened after its peak while maintaining an eye about 65 kilometers across. The storm later transitioned into an extratropical system over the North Pacific. The archive follows its track through June 16 and contains no center position over land.
Further reading
QUICK ANSWERS
Nestor in brief
What was Typhoon Nestor's highest wind speed?
161 mph, the highest one-minute sustained wind in its tropical stage, recorded on Jun 10, 1997, 12:00 PM UTC.
What category was Typhoon Nestor?
Category 5 at its peak on the Saffir–Simpson one-minute wind scale, first reaching Category 5 on Jun 10, 1997, 09:00 AM UTC. Other agencies classify storms differently.
What was Typhoon Nestor's lowest pressure?
930 mb, the minimum central pressure recorded during its tropical stage, on Jun 10, 1997, 06:00 AM UTC.
When did Typhoon Nestor occur?
The archived track runs from Jun 1, 1997, 06:00 AM UTC to Jun 16, 1997, 06:00 PM UTC, with the tropical stage from Jun 5, 1997, 12:00 AM UTC to Jun 14, 1997, 09:00 AM UTC.
Where did Typhoon Nestor form?
In the Western Pacific basin, in the 1997 season. Its first archived position is 6°N, 171°E on Jun 1, 1997, 06:00 AM UTC.
Did Typhoon Nestor make landfall?
No archived position places Typhoon Nestor'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. 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