SIGNIFICANT HEAVY RAIN FOR THE SOUTH ISLAND WEST COAST AND CANTERBURY HEADWATERS
Remaining showers becoming isolated during the morning and long fine spells developing.
North Island, cloud increasing, with a few late showers in the north. South Island, cloud increasing, with rain developing in the west, and scattered late rain elsewhere.
Rain for most places, possibly heavy, then mainly fine for the eastern North Island and Nelson, and a few showers elsewhere.
Cloudy periods tonight. A period of rain around the middle of tomorrow, then clearing.
Rain this evening and overnight, with heavy falls, clearing tomorrow, but showers return towards evening. Northwest gales, severe in Wairarapa, Wellington and Marlborough, easing tomorrow morning.
Very heavy rain with possible thunderstorms, easing to showers tomorrow morning, then clearing south of Hokitika from afternoon. Severe westerly gales about Fiordland early tomorrow.
Occasional rain overnight. Showers tomorrow afternoon and evening, with thunderstorms in the north. Severe northwest gales, easing tomorrow morning.
Rain easing to showers tomorrow afternoon. Severe southwest gales tomorrow morning.
Cloudy periods tonight. Occasional rain tomorrow.
Northwest 15 knots, rising to 30 knots early this morning, changing southwest 20 knots this afternoon. Sea becoming rough for a time. Northwest swell rising to 2 metres for a time. Poor visibility in a period of rain this afternoon.
Outlook following 3 days: Southwest 20 knots, gradually dying out Friday. Developing Saturday northeast 20 knots and rising early Sunday 30 knots with rough sea. Changing late Sunday southwest 20 knots.Moderate northerly swell developing on Sunday.
Northwest 20 knots, rising to 30 knots early this morning, changing southwest 25 knots late this morning. Sea becoming rough. Southwest swell rising to 3 metres. Northwest swell 2 metres developing for a time. Poor visibility in a period of rain this morning and afternoon.
Outlook following 3 days: Southwest 20 knots, dying out Friday. Developing early Saturday northeast 15 knots, rising late Saturday 35 knots with very rough sea. Changing late Sunday southwest 20 knots. Moderate southwest swell, heavy for a time on Friday. Moderate northwest swell developing on Saturday, easing Sunday.
Manukau and Waitemata Harbours, Hauraki Gulf and Bream Head to Cape Colville.
A complex trough over the South Island crosses the North Island today. A ridge of high pressure moves over the country on Friday. Another deep low approaches New Zealand from the west on Saturday and moves over the South Island on Sunday, while the associated front crosses the North Island.
Strong wind advisory in force for all areas.
For the Manukau and Waitemata Harbours: Thursday: Northwest 15 knots rising to 25 knots gusting 35 knots early this morning, turning southwest 20 knots gusting 30 knots around midday. Sea becoming rough early this morning, easing around midday. Poor visibility in rain developing this morning, easing to isolated showers this afternoon. For the Hauraki Gulf and Bream Head to Cape Colville: Thursday: Northwest 15 knots rising to 25 knots gusting 35 knots early this morning, turning southwest 20 knots gusting 30 knots early this afternoon. Sea becoming rough early this morning, easing early this afternoon. Poor visibility in rain developing this morning, easing to isolated showers this afternoon.
Outlook until midnight Sunday: Friday: Southwest 20 knots, dying out evening. Morning shower or two then fine. Saturday: Northeast 20 knots developing. Cloud increasing, chance late shower. Sunday: Northerly 30 knots changing southwest 20 knots. Period of rain.
Swell forecast to midnight Sunday: East Coast: Northerly half a metre, rising to 1 metre for a time today. Rising to northeast 1 metre on Saturday and northerly 2 metres on Sunday. West Coast: Southwest 2 metres, rising to 3.5 metres overnight tonight, then easing to 1.5 metres Saturday and rising to 3 metres late Sunday. Northwest 2 metres developing for a time today and again on Sunday.