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1921 Global Tropical Cyclones Outside the Northwest Pacific

Total entries in the 1921 database 19 19 tropical cyclones outside the Northwest Pacific: South Indian Ocean. For Northwest Pacific typhoons, see 1921 Typhoon .

Data reliability:
● ReliableWeather satellites monitored these systems throughout, resulting in relatively accurate tracks and intensities (Atlantic and Eastern Pacific from 1966; other basins from 1980)
● Generally reliableAircraft entered typhoons for direct measurements, but satellites were not yet widespread: tracks are generally accurate, while intensities may be biased and weaker cyclones may be missing (from 1950 until satellite coverage became widespread)
● Inferred dataWith no satellites or aircraft that year, intensities were retrospectively estimated from records from ships and coastal weather stations (before 1950)
● Track onlyOnly approximate positions are available, with no wind speed or pressure records, so they are excluded from intensity rankings (mostly early records from the Indian Ocean and Southern Hemisphere)

全部ocean areaSouth Indian Ocean
The nameEnglish Nameocean areaPeak CategoryMax Wind(m/s)Minimum Pressure (hPa) Formation DateData Reliability ⓘ
--South Indian Ocean---1921-01-16仅路径
--South Indian Ocean---1921-02-07仅路径
--South Indian Ocean---1921-02-08仅路径
--South Indian Ocean---1921-02-09仅路径
--South Indian Ocean---1921-02-10仅路径
--South Indian Ocean---1921-02-11仅路径
--South Indian Ocean---1921-02-11仅路径
--South Indian Ocean---1921-02-11仅路径
--South Indian Ocean---1921-02-17仅路径
--South Indian Ocean---1921-03-10仅路径
--South Indian Ocean---1921-03-11仅路径
--South Indian Ocean---1921-11-01仅路径
--South Indian Ocean---1921-11-09仅路径
--South Indian Ocean---1921-11-11仅路径
--South Indian Ocean---1921-12-10仅路径
--South Indian Ocean---1921-12-11仅路径
--South Indian Ocean---1921-12-21仅路径
--South Indian Ocean---1921-12-21仅路径
--South Indian Ocean---1921-12-28仅路径
← 1920年全球最强气旋排行数据说明1922年 →

Data sources: NOAA IBTrACS v04r01; 等级按各ocean area当地机构分级换算, for reference only.