Saturday: Southeasterly 20/25 knots. Seas: 1/1.5 metres, increasing to 2 metres outside the reef. Swell: Easterly 1/1.5 metres outside the reef, tending southeasterly around 1 metre by early evening. Weather: Isolated thunderstorms offshore north of Cape Grenville. Sunday: Southeasterly 20/25 knots, reaching up to 30 knots offshore in the evening. Seas: 1.5/2.5 metres. Swell: Southeasterly 1/1.5 metres outside the reef. Weather: Isolated thunderstorms offshore north of Cape Grenville. Outlook Monday: East to southeasterly 20/30 knots decreasing to 15/20 knots during the day. Seas: 2/3 metres, decreasing below 2 metres during the morning. Swell: East to southeasterly 1/1.5 metres. Weather: Isolated thunderstorms.Issued Sat 10:51 EST
12:38 EST Tropical Cyclone Jack has rapidly developed over the warm waters of the Indian Ocean in the past 24 hours, making it the 10th system to be named this season.