World Weather/Climate Extremes Website

Tropical Cyclone: Most Intense Tropical Cyclone (by Maximum Sustained Surface Wind)

Record Value 95 m/s (185 kt, 215 mph)
Date of Event 12/9/1961
Length of Record 1945-present
Geospatial Location 15°30'N, 137°30'E (Typhoon Nancy in the Northwest Pacific Ocean)

Reference

http://www.aoml.noaa.gov/hrd/tcfaq/E1.html

Discussion

It is now recognized that the maximum sustained winds estimated for typhoons during the 1940s to 1960s were too strong and that the 95 m/s (and numerous 83 to 93 m/s reports) is somewhat too high.

Closeup and Regional Satellite Images of Pacific Region for Typhoon Nancy's Maximum Wind Position

Closeup and Regional Satellite Images of Pacific Region for Typhoon Nancy's Maximum Wind Position

15.5°N, 137.5°E (Typhoon Nancy in the Northwest Pacific Ocean)

Closeup and Regional Satellite Images of Pacific Region for Typhoon Nancy's Maximum Wind Position