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Coastal Waters Forecast 

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IDW11120

Australian Government Bureau of Meteorology
Western Australia

Coastal Waters Forecast for Western Australia
Northern Zones: NT-WA Border to North West Cape

Issued at 4:00 am WST on Thursday 28 May 2020
for the period until midnight WST Saturday 30 May 2020.

Please be aware
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.

Warning Information

For latest warnings go to www.bom.gov.au, subscribe to RSS feeds, call 1300 659 210* or listen for warnings on relevant TV and radio broadcasts.

Weather Situation

A trough near Cape Leveque will stagnate and weaken during the next couple of days. A high pressure ridge through central parts of the state is producing a southeasterly flow over the Pilbara. The ridge will break down on Friday, resulting in an easing of winds over the Pilbara and adjacent waters. A new ridge will develop through central parts of the state on Saturday.

North Kimberley Coast: WA-NT Border to Kuri Bay

Forecast for Thursday 28 May until midnight

Winds: East to northeasterly 10 to 15 knots, reaching up to 20 knots west of Kalumburu during the morning and again in the late evening. Seas: Around 1 metre, increasing to 1 to 1.5 metres west of Kalumburu. Swell: Westerly around 1 metre. Weather: Partly cloudy. 50% chance of rain west of Kalumburu, near zero chance elsewhere. The chance of a thunderstorm west of Kalumburu during the morning and afternoon.

Forecast for Friday 29 May

Winds: East to northeasterly 10 to 15 knots tending east to southeasterly 15 to 20 knots before dawn then tending east to northeasterly by early afternoon. Seas: 1 to 1.5 metres. Swell: Westerly below 1 metre. Weather: Sunny.

Forecast for Saturday 30 May

Winds: Variable about 10 knots. Seas: Around 1 metre. Swell: Northeasterly below 1 metre. Weather: Sunny.

West Kimberley Coast: Kuri Bay to Wallal

Forecast for Thursday 28 May until midnight

Winds: East to southeasterly 10 to 15 knots, reaching up to 20 knots during the morning. Winds east of Cape Leveque tending northeasterly 15 to 20 knots. Seas: 1 to 1.5 metres, decreasing to 1 metre around midday. Swell: Westerly below 1 metre. Weather: Cloudy. near 100% chance of showers offshore north of Cape Leveque, 50% chance elsewhere. The chance of a thunderstorm north of Broome.

Forecast for Friday 29 May

Winds: Southeast to northeasterly 15 to 20 knots easing below 10 knots in the afternoon. Winds north of Cape Leveque tending north to northeasterly in the afternoon. Seas: 1 to 1.5 metres, decreasing below 1 metre during the afternoon. Swell: North to northeasterly below 1 metre. Weather: Partly cloudy. 70% chance of showers. The chance of a thunderstorm offshore north of Broome in the morning and afternoon.

Forecast for Saturday 30 May

Winds: Variable below 10 knots. Seas: Below 1 metre. Swell: North to northeasterly below 1 metre. Weather: The chance of a thunderstorm in the morning. Mostly sunny afternoon.

Pilbara Coast East: Wallal to Cape Preston

Forecast for Thursday 28 May until midnight

Winds: Southeasterly 10 to 15 knots, reaching up to 20 knots offshore east of Port Hedland for a period during the morning. Seas: 1 to 1.5 metres, decreasing below 1 metre during the afternoon. Swell: East to northeasterly below 1 metre. Weather: Partly cloudy.

Forecast for Friday 29 May

Winds: East to southeasterly 10 to 15 knots becoming variable about 10 knots in the early afternoon then becoming southeast to southwesterly 10 to 15 knots by the evening. Seas: Below 1 metre. Swell: Northeasterly below 1 metre. Weather: Partly cloudy.

Forecast for Saturday 30 May

Winds: South to southwesterly 10 to 15 knots tending south to southeasterly during the morning then becoming variable about 10 knots during the afternoon. Seas: Around 1 metre. Swell: Westerly below 1 metre. Weather: Mostly sunny.

Pilbara Coast West: Cape Preston to North West Cape

Forecast for Thursday 28 May until midnight

Winds: Southeasterly 10 to 15 knots becoming variable to 10 knots in the middle of the day. Seas: Around 1 metre. Swell: West to southwesterly around 1 metre inshore, increasing to 1.5 to 2.5 metres offshore west of Onslow. Weather: Mostly sunny.

Forecast for Friday 29 May

Winds: Southeast to southwesterly 10 to 15 knots reaching up to 20 knots in the evening. Seas: Around 1 metre. Swell: West to southwesterly around 1 metre inshore, increasing to 1.5 to 2.5 metres about offshore western waters. Weather: Mostly sunny.

Forecast for Saturday 30 May

Winds: Southerly 15 to 20 knots. Seas: 1 to 1.5 metres, decreasing to 1 metre during the afternoon or evening. Swell: West to southwesterly around 1 metre inshore, increasing to 1.5 to 2 metres about offshore western waters. Weather: Mostly sunny.

The next routine forecast will be issued at 4:00 pm WST Thursday.

* Calls to 1300 numbers cost around 27.5c incl. GST, higher from mobiles or public phones. Marine forecasts are also available on VHF and HF radio. View the radio schedule on www.bom.gov.au/marine

Check the latest Coastal Waters Forecasts for information on wind, wave and weather conditions for neighbouring coastal zones