Forecast issued at 10:00 pm EST on Sunday 24 July 2016.
A strong cold front will develop over the Bight during Monday, moving rapidly east to reach Portland around 1500 and the Bays around 1800. Another front should move across Bass Strait early on Wednesday. On Wednesday a large high pressure system will be located to the north of Adelaide and this high should drift across southern NSW on Thursday.
Forecast for Sunday until midnight
- North to northwesterly 15 to 20 knots gradually tending northwesterly.
- Around 1 metre.
- Cloudy. 30% chance of a shower. The chance of a thunderstorm west of Sandy Point.
Monday 25 July
Gale Warning for Monday for Western Port
- Northwesterly 20 to 30 knots decreasing to 15 to 25 knots in the morning then increasing to 20 to 30 knots in the afternoon and briefly reaching 30 to 40 knots in the late afternoon before shifting westerly at 25 to 35 knots in the evening. Squalls over 50 knots possible with the change. Winds easing to 20 to 30 knots during the late evening.
- 1 to 1.5 metres, increasing to 2 to 3 metres during the afternoon.
- Partly cloudy. 90% chance of rain. The chance of a thunderstorm in the evening. Possible hail at night.
Tuesday 26 July
- Northwesterly 20 to 30 knots decreasing to 15 to 25 knots before dawn.
- 1.5 to 2.5 metres, decreasing to 1 metre during the morning.
- Cloudy. 40% chance of showers, with possible hail.
Wednesday 27 July
- Northwesterly 15 to 20 knots turning west to southwesterly below 10 knots during the morning then tending northwesterly 10 to 15 knots during the evening.
- Below 1 metre.
- Cloudy. 60% chance of showers.
Thursday 28 July
- Northwesterly 10 to 15 knots.
- Below 1 metre, increasing to 1 to 1.5 metres west of Sandy Point.
- Cloudy. 50% chance of showers.
Please be awareWind gusts can be 40 percent stronger than the averages given here, and maximum waves may be up to twice the height.
The next routine forecast will be issued at 5:10 am EST Monday.