World Map › Tropical Cyclones Since 1950 › 1971
Tropical Cyclone
Typhoon Irma (1971)
7 November 1971 · Western Pacific · Category 5
Typhoon Irma formed in the Western Pacific basin on 7 November 1971 and lasted 11 days. Its sustained winds reached 287 km/h, Category 5 on the Saffir-Simpson scale, with a minimum pressure of 885 hPa. It is the 53rd most powerful tropical cyclone recorded since 1950.
- Formed
- 7 November 1971
- Dissipated
- 17 November 1971
- Duration
- 11 days
- Basin
- Western Pacific
- Maximum Sustained Wind
- 287 km/h (155 kt)
- Category (Saffir-Simpson)
- 5
- Minimum Pressure
- 885 hPa
Other Cyclones of the Season
- Cat. 5Typhoon Amy278 km/h
- Cat. 5Typhoon Nadine278 km/h
- Cat. 5Typhoon Wendy259 km/h
- Cat. 5Typhoon Bess259 km/h
- Cat. 4Typhoon Lucy241 km/h
- Cat. 4Typhoon Harriet232 km/h
- Cat. 4Typhoon Rose222 km/h
- Cat. 3Typhoon Trix185 km/h
Sources: IBTrACS v04r01, NOAA National Centers for Environmental Information (Knapp et al., 2010) · Wikidata · Natural Earth