A developing tropical low is edging its way across the country's northwest, with a cyclone watch already in place for parts of Western Australia.
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Currently the tropical low is sitting southwest of Katherine, over the Northern Territory. High amounts of moisture are already being drawn over the Top End, bringing heavy showers.
Theyona, of the Darwin-Daly District, picked up as much as 126mm to 9am today. Closer to the low, Delamere received 78mm to 9am, making it their wettest day since February of 2008.
The tropical low is steadily edging towards the west southwest and should reach the Indian Ocean late Friday or early Saturday, after crossing the Kimberley.
When the low reaches the Indian Ocean the warm sea surface temperatures and high moisture content will act as fuel to the system and this is when we could see the low develop into a tropical cyclone.
While gales are not expected today or Friday, there is a risk for strong winds to develop along the Pilbara coast on Saturday as the system strengthens off the coast.
Currently, a cyclone watch has been issued for coastal areas from Wallal to Exmouth.