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27 December 2011


Community ThreatPast Cyclone Details
Warning Zone - Gales within 24 hours
Watch Zone - Gales from 24 to 48 hours
Past Location and Intensity Number
Past Track and Movement
Current Cyclone DetailsForecast Cyclone Details
(at 24 and 48 hours from issue)
Current Location and Intensity Number
Very Destructive Winds
Destructive Winds
Gale Force Winds
Forecast Location and Intensity Number
Very Destructive Wind Boundary
Destructive Wind Boundary
Gale Force Wind Boundary
Most Likely Future Track
Range of Likely Tracks of Cyclone Centre

The forecast path shown above is the Bureau's best estimate of the cyclone's future movement and intensity. There is always some uncertainty associated with tropical cyclone forecasting and the grey zone indicates the range of likely tracks of the cyclone centre.

Due to the uncertainty in the future movement, the indicated winds will almost certainly extend to regions outside the rings on this map. The extent of the warning and watch zones reflects this.

This product is designed for land-based communities; mariners should read the coastal waters and high seas warnings.


Ex-tropical Cyclone Grant is expected to begin moving towards the east during Wednesday and is likely to move over the Gulf of Carpentaria on Thursday, where it may redevelop into a tropical cyclone. The system is expected to move steadily east across the Gulf of Carpentaria during Thursday and Friday.

GALES are not expected in coastal areas within the next 24 hours, however gales may develop later if the cyclone forms close to the coast.

HEAVY RAIN is expected to cause flooding of low lying areas over the Darwin-Daly, Arnhem and Roper-McArthur districts.

Tides will be HIGHER THAN NORMAL between Milingimbi and Groote Eylandt. Large waves may produce MINOR FLOODING of low-lying coastal areas.
The Territory Controller advises communities under Watch that now is the time to put together your emergency kit, clear your yards and balconies, and commence home shelter preparations.

Name: Ex-Tropical Cyclone Grant

- Australia Meteorology Buro