Western Australia

Wind and wave forecasts are averages. Wind gusts can be 40 per cent stronger than the forecast, and stronger still in squalls and thunderstorms. Maximum waves can be twice the forecast height.

Perth and Melville Local Waters

Saturday 8 August

Synoptic Situation: A strong cold front will approach the west coast later on Saturday and move through local waters Sunday morning with a period of strong to gale force winds expected. In the wake of the front on Sunday a gusty, showery west to southwesterly flow will persist through the early part of next week.

Perth Local Waters

Saturday 8 August

Winds: Northeasterly 20 to 30 knots.
Seas: 1.5 to 2.5 metres.
Swell 1: Southwesterly 1 to 1.5 metres.
Weather: Partly cloudy.

Sunday 9 August

Winds: Northeasterly 20 to 30 knots, reaching up to 35 knots during the morning. Winds turning northwesterly 25 to 30 knots in the middle of the day.
Seas: 2 to 3 metres, increasing to 2.5 to 4 metres during the morning.
Swell 1: Northwesterly around 1 metre, increasing to 1.5 to 2.5 metres around midday.
Swell 2: Southwesterly 1 to 1.5 metres, decreasing to around 1 metre during the morning, then tending west to southwesterly 1 to 1.5 metres around midday.
Weather: Cloudy. Near 100% chance of showers. The chance of a thunderstorm.

Monday 10 August

Winds: Westerly 20 to 30 knots.
Seas: 2.5 to 3 metres.
Swell 1: Westerly 2 to 3 metres, increasing to 3 to 5 metres during the morning.
Weather:

Cloudy. Near 100% chance of showers. The chance of a thunderstorm.

Caution: Dangerous surf conditions hazardous for coastal activities such as swimming, surfing and rock fishing. Tides likely to rise above the normal high tide mark.


Tuesday 11 August

Winds: Southwesterly 20 to 30 knots easing to 20 to 25 knots during the morning.
Seas: 2 to 3 metres, decreasing to 1.5 to 2 metres during the afternoon.
Swell 1: West to southwesterly 3 to 5 metres.
Weather: Cloudy. 80% chance of showers.