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BoM Mount Horeb Marine Weather Forecast

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Forecast for Tuesday, 15 September
Weather: Cloudy. 90% chance of showers.
Winds: Southerly 25 to 30 knots turning southwesterly in the evening.
Seas: 1.5 to 2 metres, increasing to 2.5 to 3 metres by early evening.
Swell: Southerly 1 to 1.5 metres inshore, increasing to 1.5 to 2.5 metres offshore.
Forecast for Wednesday, 16 September
Weather: Cloudy. 60% chance of showers, with possible small hail offshore in the morning and afternoon.
Winds: Southwesterly 25 to 30 knots, reaching up to 35 knots offshore during the morning.
Seas: 2.5 to 3 metres.
Swell: Southerly 1.5 to 2.5 metres inshore, increasing to 2.5 to 4 metres offshore.
Forecast for Thursday, 17 September
Weather: Partly cloudy.
Winds: South to southwesterly 20 to 30 knots decreasing to 15 to 25 knots before dawn then becoming variable about 10 knots in the late afternoon.
Seas: 2 to 3 metres, decreasing to 1 to 1.5 metres during the morning, then decreasing below 1 metre during the afternoon.
Swell: Southerly 2 to 3 metres.
Forecast for Friday, 18 September
Weather: Sunny.
Winds: Variable below 10 knots becoming north to northeasterly 10 to 15 knots during the afternoon then tending north to northwesterly during the evening.
Seas: Below 1 metre.
Swell: Southerly 2 to 2.5 metres.

Forecast for Tuesday, 15 September
Weather: Clear.
Winds: Northerly 15 to 20 knots, reaching up to 25 knots south of Cape Byron during the afternoon and evening.
Seas: 1 to 1.5 metres, increasing to 1.5 to 2 metres south of Cape Byron.
Swell: Southerly below 1 metre.
Forecast for Wednesday, 16 September
Weather: Partly cloudy. 80% chance of showers. The chance of a thunderstorm offshore in the morning.
Winds: North to northwesterly 20 to 25 knots shifting southerly 20 to 30 knots before dawn. Winds reaching up to 35 knots offshore south of Yamba in the evening.
Seas: 1.5 to 2 metres, increasing to 2 to 3 metres during the morning.
Swell: Southerly around 1 metre, increasing to 1.5 to 2.5 metres during the morning, then increasing to 2.5 to 4 metres by early evening.
Forecast for Thursday, 17 September
Weather: Partly cloudy. 80% chance of showers.
Winds: Southerly 20 to 30 knots.
Seas: 2 to 3 metres.
Swell: Southerly 3 to 4 metres, decreasing to 2.5 to 3 metres during the morning.
Forecast for Friday, 18 September
Weather: Partly cloudy.
Winds: Southerly 15 to 20 knots becoming variable about 10 knots during the afternoon.
Seas: 1 to 2 metres, decreasing below 1 metre during the afternoon or evening.
Swell: Southerly 1.5 to 2.5 metres.

Forecast for Tuesday, 15 September
Weather: Mostly clear. The chance of a thunderstorm later this evening.
Winds: Northerly 15 to 20 knots, reaching up to 25 knots offshore north of Coffs Harbour in the evening.
Seas: 1.5 to 2 metres.
Swell: Southerly below 1 metre.
Forecast for Wednesday, 16 September
Weather: Partly cloudy. 80% chance of showers. The chance of a thunderstorm offshore in the early morning.
Winds: West to southwesterly 20 to 25 knots turning southerly 20 to 30 knots before dawn. Winds reaching up to 35 knots offshore north of Coffs Harbour in the evening.
Seas: 1.5 to 2 metres, increasing to 2 to 3 metres during the morning.
Swell: Southerly around 1 metre, increasing to 1.5 to 2.5 metres during the morning, then increasing to 2.5 to 4 metres during the afternoon.
Forecast for Thursday, 17 September
Weather: Cloudy. 80% chance of showers.
Winds: Southerly 20 to 30 knots decreasing to 15 to 25 knots in the late afternoon.
Seas: 2 to 3 metres.
Swell: Southerly 3 to 4 metres, decreasing to 2.5 to 3 metres during the morning.
Forecast for Friday, 18 September
Weather: Cloud clearing.
Winds: Southerly 15 to 20 knots becoming variable about 10 knots during the day.
Seas: 1 to 1.5 metres, decreasing below 1 metre during the afternoon.
Swell: Southerly 2.5 to 3 metres, decreasing to 2 metres during the afternoon.

Forecast for Tuesday, 15 September
Weather: Cloudy. 70% chance of showers, with possible small hail offshore south of Green Cape later this evening.
Winds: Southwesterly 25 to 30 knots, reaching up to 35 knots offshore in the evening.
Seas: 2.5 to 3 metres.
Swell: South to southwesterly 1 to 1.5 metres, increasing to 1.5 to 2.5 metres by early evening, then tending southwesterly 2 to 3 metres later in the evening.
Forecast for Wednesday, 16 September
Weather: Cloudy. 70% chance of showers, with possible small hail in the morning and afternoon.
Winds: Southwesterly 20 to 30 knots, reaching up to 35 knots offshore north of Green Cape early in the morning.
Seas: 2 to 3 metres.
Swell: Southwesterly 2 to 3 metres, tending southerly 2 to 3 metres during the morning.
Forecast for Thursday, 17 September
Weather: Partly cloudy.
Winds: Southwesterly 20 to 30 knots decreasing to 15 to 25 knots before dawn.
Seas: 1 to 1.5 metres, increasing to 1.5 to 2.5 metres offshore.
Swell: Southerly 2 to 2.5 metres.
Forecast for Friday, 18 September
Weather: Mostly sunny.
Winds: West to southwesterly 15 to 20 knots tending northwest to northeasterly 10 to 15 knots during the day then becoming variable about 10 knots during the afternoon.
Seas: 1 to 1.5 metres, decreasing to 1 metre during the morning.
Swell: Southerly 2 to 2.5 metres.

Forecast for Tuesday, 15 September
Weather: Partly cloudy. 70% chance of showers. The chance of a thunderstorm.
Winds: Southerly 15 to 20 knots increasing to 20 to 25 knots in the late evening. Winds reaching up to 30 knots in the late evening. Squalls possible with the wind change.
Seas: Around 1 metre, increasing to 1 to 1.5 metres south of Port Stephens later in the evening.
Swell: Southerly below 1 metre, increasing to 1 to 1.5 metres south of Port Stephens later in the evening. North to northeasterly around 1 metre, increasing to 1 to 1.5 metres north of Port Stephens.
Forecast for Wednesday, 16 September
Weather: Cloudy. 90% chance of showers.
Winds: Southerly 25 to 30 knots.
Seas: 2.5 to 3 metres.
Swell: Southerly 2 to 3 metres, increasing to 3 to 4 metres around midday.
Forecast for Thursday, 17 September
Weather: Cloudy. 80% chance of showers.
Winds: Southerly 25 to 30 knots decreasing to 15 to 25 knots in the morning.
Seas: 2.5 to 3 metres, decreasing to 1 to 2 metres during the morning, then decreasing to 1 metre later in the evening.
Swell: Southerly 2.5 to 4 metres, decreasing to 2 to 3 metres during the afternoon. Northeast to southeasterly around 1 metre south of Port Stephens, tending southeasterly 1 to 1.5 metres later in the evening.
Forecast for Friday, 18 September
Weather: Sunny.
Winds: Southwesterly 10 to 15 knots tending northwest to southwesterly during the morning then tending northwest to northeasterly during the day.
Seas: Below 1 metre.
Swell: Southerly 2 to 3 metres. Southeasterly around 1 metre south of Port Stephens.

Forecast for Tuesday, 15 September
Weather: Cloudy. 90% chance of showers.
Winds: Southerly 20 to 30 knots.
Seas: Around 1 metre, increasing to 2 to 3 metres by early evening.
Swell: Southerly around 1 metre, increasing to 1.5 to 2 metres by early evening.
Forecast for Wednesday, 16 September
Weather: Cloudy. 70% chance of showers, with possible small hail offshore south of Port Kembla in the morning.
Winds: South to southwesterly 25 to 30 knots, reaching up to 35 knots offshore south of Point Perpendicular during the morning.
Seas: 2.5 to 3 metres.
Swell: Southerly 2 to 3 metres inshore, increasing to 3 to 4 metres offshore north of Point Perpendicular during the morning.
Forecast for Thursday, 17 September
Weather: Partly cloudy.
Winds: Southerly 20 to 30 knots tending south to southwesterly 15 to 25 knots in the early morning then becoming variable about 10 knots in the evening.
Seas: 2 to 3 metres, decreasing to 1 to 2 metres during the morning, then decreasing below 1 metre by early evening.
Swell: Southerly 2 to 3 metres, decreasing to 2 metres later in the evening.
Forecast for Friday, 18 September
Weather: Sunny.
Winds: West to northwesterly below 10 knots tending northwest to northeasterly 10 to 15 knots during the morning then tending northwesterly during the evening.
Seas: Below 1 metre.
Swell: Southerly 2 metres.

Forecast for Tuesday, 15 September
Weather: Partly cloudy. The chance of a thunderstorm.
Winds: Northerly 15 to 20 knots shifting south to southwesterly 15 to 25 knots in the evening. Winds reaching up to 30 knots in the late evening.
Seas: 1 to 1.5 metres, increasing to 1 to 2 metres offshore north of Port Macquarie.
Swell: North to northeasterly below 1 metre inshore, increasing to around 1 metre offshore south of Port Macquarie.
Forecast for Wednesday, 16 September
Weather: Cloudy. 90% chance of showers. The chance of a thunderstorm offshore north of Port Macquarie in the early morning.
Winds: South to southwesterly 25 to 30 knots, reaching up to 35 knots offshore north of Port Macquarie in the early afternoon.
Seas: 2 to 3 metres.
Swell: Southerly 1 to 1.5 metres, increasing to 2 to 3 metres during the morning, then increasing to 3 to 4 metres around midday.
Forecast for Thursday, 17 September
Weather: Cloudy. 90% chance of showers.
Winds: Southerly 20 to 30 knots decreasing to 15 to 25 knots in the morning.
Seas: 2 to 3 metres, decreasing to 1 to 2 metres around midday.
Swell: Southerly 3 to 4 metres, decreasing to 3 metres during the afternoon.
Forecast for Friday, 18 September
Weather: Mostly sunny.
Winds: South to southwesterly 10 to 15 knots shifting northerly during the afternoon.
Seas: Around 1 metre.
Swell: Southerly 2 to 3 metres.

Forecast for Tuesday, 15 September
Weather: Cloudy. 70% chance of showers.
Winds: Southeasterly 10 to 15 knots tending southerly 15 to 25 knots in the late afternoon. Winds reaching up to 30 knots in the evening. Squalls possible with the wind change.
Seas: Below 1 metre, increasing to 1 to 1.5 metres by early evening, then increasing to 2 to 2.5 metres later in the evening.
Swell: Southerly below 1 metre, increasing to 1.5 metres later in the evening.
Forecast for Wednesday, 16 September
Weather: Cloudy. 70% chance of showers.
Winds: Southerly 25 to 30 knots.
Seas: 2.5 to 3 metres.
Swell: Southerly 2 to 3 metres, increasing to 3 to 4 metres during the morning.
Forecast for Thursday, 17 September
Weather: Partly cloudy. 60% chance of showers.
Winds: Southerly 25 to 30 knots decreasing to 15 to 25 knots in the morning then decreasing to about 10 knots in the evening.
Seas: 2.5 to 3 metres, decreasing to 1 to 2 metres during the morning, then decreasing below 1 metre by early evening.
Swell: Southerly 2 to 3 metres, decreasing to 1.5 to 2 metres by early evening. East to northeasterly below 0.5 metres, tending southeasterly 1 to 1.5 metres during the morning.
Forecast for Friday, 18 September
Weather: Sunny.
Winds: Variable about 10 knots becoming northwest to northeasterly 10 to 15 knots during the morning then tending northwesterly during the evening.
Seas: Below 1 metre.
Swell: Southerly 1 to 1.5 metres inshore, increasing to 1.5 to 2 metres offshore. Southeasterly around 1 metre.
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