Tropical Cyclone Errol likely to form off north coast of Western Australia this weekend

Weather bureau predicts high-pressure system will bring above-average temperatures across south-east Australia

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A cyclone is likely to form off the northern coast of Western Australia this weekend, the Bureau of Meteorology (BoM) has warned, as south-east Australia prepares for unseasonably warm weather.

The bureau on Saturday morning issued a warning that a tropical low in the Timor Sea north-west of Darwin was moving south-west and was expected to intensify into a cyclone later in the day.