1921 Global Tropical Cyclones Outside the Northwest Pacific
Total entries in the 1921 database 48 Tropical cyclones outside the Northwest Pacific: South Pacific 12, South Indian Ocean 19, North Indian Ocean 10, North Atlantic 7. Strongest of the year: Unnamed North Atlantic Hurricane of 1921 (approx. 61.7 m/s). For Northwest Pacific typhoons, please 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)
| The name | English Name | ocean area | Peak Category | Max Wind(m/s) | Minimum Pressure (hPa) | formed日期 | 数据可信度 ⓘ |
|---|---|---|---|---|---|---|---|
| - | - | South Pacific | - | - | - | 1921-01-07 | 仅路径 |
| - | - | South Indian Ocean | - | - | - | 1921-01-16 | 仅路径 |
| - | - | South Pacific | - | - | - | 1921-01-20 | 仅路径 |
| - | - | South Pacific | - | - | - | 1921-01-22 | 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 Pacific | - | - | - | 1921-03-29 | 仅路径 |
| - | - | South Pacific | - | - | - | 1921-03-31 | 仅路径 |
| - | - | South Pacific | - | - | - | 1921-04-01 | 仅路径 |
| - | - | South Pacific | - | - | - | 1921-04-02 | 仅路径 |
| - | - | South Pacific | - | - | - | 1921-04-04 | 仅路径 |
| - | - | North Indian Ocean | - | - | - | 1921-04-06 | 仅路径 |
| - | - | North Atlantic | Cat 1 Hurricane | 41.2 | 980 | 1921-06-16 | 推算 |
| - | - | South Pacific | - | - | - | 1921-07-01 | 仅路径 |
| - | - | South Pacific | - | - | - | 1921-07-01 | 仅路径 |
| - | - | South Pacific | - | - | - | 1921-07-20 | 仅路径 |
| - | - | North Indian Ocean | - | - | - | 1921-07-24 | 仅路径 |
| - | - | North Indian Ocean | - | - | - | 1921-08-08 | 仅路径 |
| - | - | North Indian Ocean | - | - | - | 1921-09-02 | 仅路径 |
| - | - | North Indian Ocean | - | - | - | 1921-09-02 | 仅路径 |
| - | - | North Atlantic | Cat 1 Hurricane | 36 | - | 1921-09-04 | 推算 |
| - | - | North Atlantic | Cat 3 Hurricane | 56.6 | 959 | 1921-09-06 | 推算 |
| - | - | North Atlantic | Cat 1 Hurricane | 41.2 | 979 | 1921-09-08 | 推算 |
| - | - | North Indian Ocean | - | - | - | 1921-09-15 | 仅路径 |
| - | - | South Pacific | - | - | - | 1921-10-01 | 仅路径 |
| - | - | North Indian Ocean | - | - | - | 1921-10-04 | 仅路径 |
| - | - | North Atlantic | Tropical Storm | 30.9 | - | 1921-10-15 | 推算 |
| - | - | North Atlantic | Cat 4 Hurricane | 61.7 | 941 | 1921-10-20 | 推算 |
| - | - | North Indian Ocean | - | - | - | 1921-10-24 | 仅路径 |
| - | - | South Indian Ocean | - | - | - | 1921-11-01 | 仅路径 |
| - | - | North Indian Ocean | - | - | - | 1921-11-06 | 仅路径 |
| - | - | South Indian Ocean | - | - | - | 1921-11-09 | 仅路径 |
| - | - | South Indian Ocean | - | - | - | 1921-11-11 | 仅路径 |
| - | - | North Atlantic | Tropical Storm | 25.7 | - | 1921-11-19 | 推算 |
| - | - | 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 |
| - | - | North Indian Ocean | - | - | - | 1921-12-27 | 仅路径 |
| - | - | South Indian Ocean | - | - | - | 1921-12-28 | 仅路径 |
Data sources: NOAA IBTrACS v04r01; 等级按各ocean area当地机构分级换算, for reference only.