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The 1970–71 Australian region cyclone season was the second most active tropical cyclone season in the Australian Region.
| 1970–71 Australian region cyclone season | |
|---|---|
Season summary map | |
| Seasonal boundaries | |
| First system formed | 31 October 1970 |
| Last system dissipated | 29 March 1971 |
| Strongest storm | |
| Name | Sophie |
| • Maximum winds | 215 km/h (130 mph) (10-minute sustained) |
| • Lowest pressure | 925 hPa (mbar) |
| Seasonal statistics | |
| Tropical lows | 21 |
| Tropical cyclones | 21 |
| Severe tropical cyclones | 10 |
| Total fatalities | Unknown |
| Total damage | Unknown |
| Related articles | |
Andrea, 31 October to 11 November 1970 in central Indian Ocean
Tropical Cyclone Carmen developed on November 20 and left the basin on November 26.
Beverley, 26 November to 1 December 1970 in Arafura Sea. The decayed storm developed into Eva.
Severe Tropical Cyclone Dominique-Hilary developed on December 11 and left the basin on December 17.
Janet, 19 to 25 December 1970 in central Indian Ocean
Loris, 26 to 31 December 1970 crossed the Pilbara coast near Mandora with no serious damage.
Myrtle-Ginette, 15 to 18 January 1971 near Cocos Island and moved west
Polly formed in the Indian Ocean west of the Keeling Islands and existed from 20 to 29 January.[1]
Rita existed from 23 to 30 January 1971 passed over Exmouth, Western Australia with flood damage only.
Sophie, 29 January to 6 February 1971 crossed the coast near Roebourne, Western Australia, while doing some damage.
Aggie, 1 to 4 February 1971 in Gulf of Carpentaria and Arnhem Land
Cyclone Dora formed in the Coral sea east of Proserpine on February 10, 1971, it took a southeasterly track over the next 4 days away from the QLD coast turning into a low-pressure system well east of the QLD NSW border. On February 17 the system reintensified into a cyclone east of the Gold Coast and crossed the coast north of Brisbane at Redcliffe. Widespread structural damage was reported with power lines down and roofs removed.[2]
Severe Tropical Cyclone Tilly-Iphigenie existed from February 10 to February 14.
Gertie, 11 to 16 February 1971 crossed near Townsville, Queensland.
Ida, 15 to 22 February 1971 in Coral Sea
| Category 1 tropical cyclone (Australian scale) | |
| Tropical storm (SSHWS) | |
  | |
| Duration | February 16 – February 18 (Crossed 80°E) |
|---|---|
| Peak intensity | 85 km/h (50 mph) (10-min); |
Severe Tropical Cyclone Fiona existed from February 16 to February 28.
Severe Tropical Cyclone Yvonne-Lise developed on February 19 and left the basin on February 23.
Severe Tropical Cyclone Maggie-Muriel developed on March 7 and left the basin on March 13.
Lena, 13 to 20 March 1971 near New Caledonia
Mavis, 23 to 29 March 1971 crossed coast near Denham, Western Australia causing flooding.
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