1958 Western Pacific typhoon season
Typhoon Grace 1958
Typhoon Grace developed near Micronesia in late August 1958 and traveled northwest toward China. It reached Category 5 strength over the western Pacific, then weakened before striking Zhejiang. The archived track continues beyond that landfall into its later, non-tropical phase.
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190 mph
Sep 1, 1958 during the tropical stage
Full archive record, including non-tropical stages if present
Along the recorded center positions
STORM HISTORY
Northwest from Micronesia
The first archived position lies near 8°N, 146.1°E on 27 August. Grace moved northwest and strengthened into an intense typhoon. Its one-minute sustained winds reached 165 kt at 18:00 UTC on 1 September, fifteen hours after its first Category 5 observation.
A weaker typhoon reaches Zhejiang
Grace struck Zhejiang after weakening from its offshore peak. The strongest sampled center-over-land observation records 90 kt at 06:00 UTC on 4 September. Its minimum archived tropical-stage pressure of 905 hPa had occurred three days earlier.
Grace's tropical-stage observations end on 5 September, when the historical account describes its transition to an extratropical cyclone. The full archive follows the later system through 9 September.
Further reading
QUICK ANSWERS
Grace in brief
What was Typhoon Grace's highest wind speed?
190 mph, the highest one-minute sustained wind in its tropical stage, recorded on Sep 1, 1958, 06:00 PM UTC.
What category was Typhoon Grace?
Category 5 at its peak on the Saffir–Simpson one-minute wind scale, first reaching Category 5 on Sep 1, 1958, 03:00 AM UTC. Other agencies classify storms differently.
What was Typhoon Grace's lowest pressure?
905 mb, the minimum central pressure recorded during its tropical stage, on Sep 1, 1958, 12:00 AM UTC.
When did Typhoon Grace occur?
The archived track runs from Aug 27, 1958, 06:00 PM UTC to Sep 9, 1958, 12:00 PM UTC, with the tropical stage from Aug 27, 1958, 06:00 PM UTC to Sep 5, 1958, 03:00 PM UTC.
Where did Typhoon Grace form?
In the Western Pacific basin, in the 1958 season. Its first archived position is 8°N, 146.1°E on Aug 27, 1958, 06:00 PM UTC.
Did Typhoon Grace make landfall?
The archive places its center over land at 1 recorded position; the strongest is 104 mph on Sep 4, 1958, 06:00 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