Area Description:

The Bay of Islands and inshore waters from Cape Brett to the Poor Knights Islands to Bream Head.

Situation:

An stationary front is situated over the upper North Island, while a ridge builds over the South Island. A broad low pressure system in the Tasman Sea approaches the country in the next few days, crossing the upper North Island during Tuesday and early Wednesday, followed by another ridge. Meanwhile a front moves across the lower South Island late Tuesday and during Wednesday,strengthening the westerly flow there. On Thursday, the ridge remains over the North Island while another front approaches the lower South Island from the west.

Warnings:

NIL warning for BRETT

Forecast:

Monday: Northwest 15 knots. Sea slight. Occasional showers, some heavy with poor visibility and possible thunderstorms.

Outlook:

Outlook until midnight Thursday: Tuesday: Northwest rising to 20 knots by dawn, easing to 10 knots in the evening. Periods of rain, easing at night. Wednesday: Becoming southwest 15 knots before dawn, rising to 20 knots for a time. A few showers. Thursday: Southwest 15 knots, easing to 10 knots late. A few showers.

Swell:

Swell forecast to midnight Thursday: Easterly swell 1 metre, rising to 1.5 metres Tuesday, easing to 1 metre Wednesday and to half a metre Thursday. Northerly 1 metre, easing to half a metre or less Wednesday.

Forecast:

Northwest 15 knots, rising to 25 knots this evening. Sea becoming rough.Easterly swell 1 metre. Northwest swell 1 metre developing. Occasional showers,some heavy with poor visibility and possible thunderstorms.

Outlook:

Outlook following 3 days: Northwest 25 knots, easing Tuesday evening 15 knots. Changing early Wednesday southwest 25 knots, easing late Wednesday 15 knots. Sea rough at times.Northwest swell becoming moderate for a time Tuesday. Easterly swell becoming moderate for a time Tuesday.

Forecast:

Northwest 20 knots, becoming northeast 15 knots about and south of Kaipara Harbour this morning. Moderate sea, easing in the south. Northwest swell rising to 3 metres. Southwest swell 1 metre. Poor visibility in showers, some heavy with possible thunderstorms.

Outlook:

Outlook following 3 days: Northwest 20 knots, easing Tuesday afternoon 10 knots in the south. Changing overnight Tuesday night southerly 30 knots everywhere, easing late Wednesday southwest 20 knots, and Thursday 10 knots. Sea rough at times. Moderate northwest swell,easing Wednesday.Southwest swell, becoming moderate Thursday.