Saturday: South to southwesterly 10/20 knots tending south to southeasterly at 10 knots in the evening. Seas: 1/1.5 metres, decreasing below 1 metre by early evening. Swell: Southeasterly 2/2.5 metres. Caution: Large and powerful surf conditions in the afternoon and evening are expected to be hazardous for coastal activities such as crossing bars by boat and rock fishing. Sunday: Variable about 10 knots becoming northerly 10/15 knots in the late evening. Seas: Below 1 metre. Swell: Southerly 1.5/2 metres, decreasing to 1/1.5 metres during the morning. Caution: Large and powerful surf conditions early in the morning are expected to be hazardous for coastal activities such as crossing bars by boat and rock fishing. Outlook Monday: West to northwesterly 10/15 knots tending west to southwesterly 15/20 knots before dawn then becoming southwest to southeasterly about 10 knots in the early afternoon. Seas: 1/1.5 metres, decreasing below 1 metre during the morning. Swell: Southerly 1/1.5 metres, decreasing to around 1 metre around dawn. Outlook Tuesday: North to northwesterly 10/15 knots. Seas: 1/1.5 metres. Swell: Southerly around 1 metre. Weather: Isolated thunderstorms offshore north of Norah Head in the afternoon and evening.Issued Sat 16:05 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.