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Tropical
Cyclone Joan
30
Nov - 10 Dec 1975
For a larger
image of the above map click here
| Area affected | Timor Sea, NW Bonaparte Gulf, Kimberley coast and coastal area west of Port Hedland. |
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| Central pressure | Lowest estimated 915 hPa on 7th. Lowest recorded 935 hPa at Mundabullungana (WA) on 8th. Lowest estimated was close to Troughton Island, 970hPa on the 3rd. |
| Winds | Maximum estimated mean winds were 228 km/h on 7th. Maximum recorded mean wind was 141 km/h with gusts to 208 km/h at Port Hedland on 8th. |
| Rainfall | Highest 24hr fall 360mm at Morandoo (WA). Cumulative falls over 4 days of around 600mm in Hedland area. Nil significant in N.T. |
| Seas & storm surge | 2.6m surge at Port Hedland. Peak surge estimated at 3.7m. |
| Damage | Widespread damage reported in Hedland area. |
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