Northland to Taranaki, including Coromandel, Bay of Plenty, Taupo, and Taumarunui

A few showers, becoming more frequent this afternoon and evening with possible thunderstorms.

Gisborne and Hawke's Bay

Mostly cloudy with isolated showers.

Whanganui, Taihape and Manawatu

Mostly cloudy. Showers developing this afternoon.

Horowhenua to Wellington, and Wairarapa

Showers, clearing this evening.

Nelson and Marlborough

Rain, clearing during the afternoon.

Buller, Westland and Fiordland

Rain, with heavy falls, easing to showers from the south during the afternoon and evening.

Canterbury

Cloudy at times. Showers spreading north late afternoon and evening, with possible thunderstorms inland.

Otago and Southland

Rain spreading north this morning and afternoon, then easing to a few showers about the south coast and clearing elsewhere.

Chatham Islands

Mostly cloudy. Rain tonight.

Colville

Saturday : Northerly rising to 20 knots this afternoon. Sea becoming moderate. Northeast swell 1 metre. Poor visibility in periods of rain, with possible thunderstorms from afternoon.

Outlook following 3 days: Sunday: Becoming westerly 15 knots in the morning, then dying out in the evening. Monday: Variable 10 knots. Northeast 15 knots developing in the evening. Tuesday: Northeast rising to 20 knots.

Kaipara

Saturday : Northerly 15 knots, rising to 25 knots this morning, easing to northwest 15 knots this evening. Sea becoming rough for a time. Southwest swell 1 metre, period 18 seconds. Northwest swell 2 metres developing for a time. Poor visibility in periods of rain, with possible thunderstorms from afternoon.

Outlook following 3 days: Sunday: Easing to variable 10 knots in the morning. Monday: Northerly 15 knots developing. Tuesday: Northeast rising to 20 knots.

Auckland

Manukau and Waitemata Harbours, Hauraki Gulf and Bream Head to Cape Colville.

Situation
The northerly flow over the country strengthens today, ahead of a complex trough approaching from the Tasman Sea. The trough moves over the country during today and early Sunday, followed by a southwest flow and brief ridge. Another complex trough in the Tasman Sea approaches central New Zealand from late Monday.

Warning
Strong wind advisory for the area from Bream Head to Cape Colville

Forecast
For Manukau Harbour: Saturday: Northerly 15 knots tending northwest 15 knots this afternoon. Sea slight but choppy when wind opposes tide. Poor visibility in periods of rain, with possible thunderstorms from afternoon. Southwest swell rising to 1 metre. Northwest swell 1 metre developing. Sunday: Northwest 15 knots changing southwest 15 knots in the morning, then easing 10 knots in the evening. Sea slight but choppy when wind opposes tide. Cloudy periods, with a few light showers until afternoon. Southwest swell rising to 1.5 metres. Northwest swell 1 metre dying out. Monday: Easing to variable 5 knots early. Cloudy periods, with isolated afternoon showers. Southwest swell easing to 1 metre. Tuesday: Northeast 15 knots developing. Cloudy periods, with isolated showers. Southwest swell 1 metre. Wednesday: Northeast 15 knots. Cloudy periods and isolated showers. Southwest swell 1 metre. For Waitemata Harbour: Saturday: Northerly 15 knots rising to 20 knots for a time this afternoon. Becoming northwest 15 knots this evening. Sea becoming moderate for a time this afternoon. Poor visibility in periods of rain, with possible thunderstorms from afternoon. Sunday: Northwest 15 knots changing southwest 10 knots in the morning. Southwest rising to 15 knots for a time in the afternoon and evening. Sea slight. Cloudy periods, with the odd shower until afternoon. Monday: Easing to variable 5 knots early. Northerly 10 knots developing in the afternoon. Cloudy periods, with isolated afternoon showers. Tuesday: Northerly rising to 15 knots. Cloudy periods and isolated showers. Wednesday: Northeast 15 knots. Cloudy periods and isolated showers. For Hauraki Gulf: Saturday: Northerly 15 knots, rising to 20 knots around midday. Becoming northwest 15 knots this evening. Sea becoming moderate around midday, easing evening. Poor visibility in periods of rain, with possible thunderstorms from afternoon, easing overnight. Northeast swell about half a metre. Sunday: Northwest 15 knots becoming westerly 10 knots in the morning. Changing southwest 15 knots in the evening and easing to 10 knots overnight. Sea slight. Cloudy periods, with the odd shower until afternoon. Northeast swell half a metre or less. Monday: Easing to variable 5 knots early. Northerly 10 knots developing from afternoon. Cloudy periods with isolated afternoon showers. Northeast swell half a metre or less. Tuesday: Northerly 10 knots rising to 15 knots in the morning. Cloudy periods and isolated showers. Northeast swell about half a metre. Wednesday: Northeast 15 knots. Cloudy periods and isolated showers. Northeast swell about half a metre. For the area from Bream Head to Cape Colville: Saturday: Northerly 20 knots rising to 25 knots gusting 35 knots for a time this afternoon. Becoming northwest 15 knots this evening. Sea becoming rough for a time this afternoon. Poor visibility in periods of rain, with possible thunderstorms from afternoon, easing overnight. Northeast swell half a metre to a metre. Sunday: Northwest 15 knots becoming westerly 10 knots in the morning then easing to variable 5 knots in the afternoon. Southwest 15 knots developing in the evening and easing to 10 knots overnight. Sea slight. Cloudy periods, with the odd shower until afternoon. Northeast swell about half a metre. Monday: Easing to variable 5 knots early. Northerly 10 knots developing late. Cloudy periods and isolated afternoon showers. Northeast swell half a metre or less. Tuesday: Northeast 10 knots rising to 20 knots from afternoon. Cloudy periods and isolated showers. Northeast swell about half a metre. Wednesday: Northeast 15 knots. Cloudy periods and isolated showers. Northeast swell rising to 1.5 metres.

Outlook