weather warning

SIGNIFICANT HEAVY RAIN FOR THE SOUTH ISLAND WEST COAST AND CANTERBURY HEADWATERS


extended nz forecast

regional forecast

coastal marine forecast

leisure marine forecast

Friday

Remaining showers becoming isolated during the morning and long fine spells developing.

Saturday

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.

Sunday

Rain for most places, possibly heavy, then mainly fine for the eastern North Island and Nelson, and a few showers elsewhere.

Chatham Islands Cloudy periods, a few showers, and southwesterlies on Friday, then mainly fine with light winds on Saturday. Rain and gale northerlies developing on Sunday.

WARNINGS FOR HEAVY RAIN AND SEVERE GALES ABOUT THE SOUTH ISLAND AND LOWER NORTH ISLAND

Northland to Taumarunui and Taupo, including Bay of Plenty, also Gisborne and Hawkes Bay

Cloudy periods tonight. A period of rain around the middle of tomorrow, then clearing.

Taranaki and Taihape to Wellington and Wairarapa, also Nelson and Marlborough

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.

Buller, Westland and Fiordland

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.

Canterbury

Occasional rain overnight. Showers tomorrow afternoon and evening, with thunderstorms in the north. Severe northwest gales, easing tomorrow morning.

Otago and Southland

Rain easing to showers tomorrow afternoon. Severe southwest gales tomorrow morning.

Chatham Islands

Cloudy periods tonight. Occasional rain tomorrow.

Cook

*STORM WARNING IN FORCE* Northwest 55 knots rising to 65 knots early morning, then easing to 40 knots late morning, and to 25 knots this afternoon. Changing southerly 20 knots this evening. Sea becoming very high for a time. Northerly swell rising to 2 metres. Poor visibility in morning rain and evening showers.

Outlook following 3 days: Southerly 15 knots turning Friday evening northerly 15 knots and rising Saturday 25 knots and early Sunday 35 knots with very rough sea. Easing late Sunday northwest 20 knots. Southerly swell becoming moderate Friday, easing Saturday.

Mana

Inshore waters from Pukerua Bay to Makara Beach.

Situation
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.

Warning
STORM warning for COOK GALE warning for STEPHENS

Forecast
Gale warning. Thursday: Northerly 35 knots gusting 50 knots, rising to 40 knots gusting 60 knots early morning. Easing to northwest 30 knots gusting 40 knots late morning, and to 25 knots gusting 35 knots this afternoon. Changing southerly 15 knots late evening. Very rough sea, easing late morning. Poor visibility in morning rain and evening showers.

Outlook
Outlook until midnight Sunday: Friday: Southerly 15 knots, dying out in the morning. Northerly 10 knots developing in the evening. A few morning showers then fine. Saturday: Northerly rising to 25 knots. Fine, late cloud. Sunday: Northerly 35 knots changing northwest 30 knots. Period of rain.

Swell
Swell forecast to midnight Sunday: Northwest half a metre, rising to 2.5 metres today, easing to 1 metre Friday and half a metre Saturday, then rising to 3 metres on Sunday.

Wellington

Wellington Harbour and the south coast from Sinclair Head to Baring Head.

Situation
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.

Warning
STORM warning for COOK

Forecast
Gale warning. Thursday: Northwest 30 knots gusting 50 knots, rising to 40 knots gusting 70 knots early morning. Northwest easing to 30 knots gusting 40 knots late morning, then to 25 knots gusting 35 knots this afternoon. Changing southerly 15 knots this evening. Sea becoming very rough for a time this morning. Poor visibility in morning rain and evening showers.

Outlook
Outlook until midnight Sunday: Friday: Southerly 15 knots dying out in the morning. Northerly 10 knots developing in the evening. A few morning showers then mainly fine. Saturday: Northerly rising to 20 knots. Fine, late cloud. Sunday: Northerly 35 knots changing northwest 25 knots. Period of rain.

Swell
Swell forecast to midnight Sunday: For Wellington South Coast and Palliser Bay: Southerly about half a metre,rising to 3 metres Friday morning, then easing to 2 metre late Friday and to 1 metre early Sunday. For Castlepoint: Southerly half a metre, rising to 3 metres Friday morning, then easing to 2 metres late Friday and 1 metre early Sunday. Northeast 1 metre developing for a time today and again on Saturday and rising to 2.5 metres on Sunday.